• kristenk's avatar
    Solver: Pair conflict set variables with more information about conflicts. · ac84fa2f
    kristenk authored
    Closes #4805.
    
    This commit adds a solver optimization to skip a version of a package if it does
    not resolve any of the conflicts encountered in the last version of that package.
    It is on by default and is controlled by the flag --fine-grained-conflicts.
    
    Conflict sets allow the solver to skip other versions of a package if that
    package wasn't involved in a conflict.  What if the package was involved in a
    conflict, but the other versions of the package don't resolve the conflict?  The
    solver should be able to skip the other versions in that case, too.  This commit
    adds more information about why each variable was added to the conflict set to
    make that possible.  The optimization is based on the assumption that the next
    version of a package is likely to have similar dependencies and constraints to
    the last version that was tried.
    
    Here is an example where --fine-grained-conflicts is more effective than
    backjumping alone:
    
    Package A-1.2 depends on B, and all versions of B depend on C. C is not
    available in the package index.  Previously, the solver would have had to try
    all combinations of versions for A and B until it found a combination that
    avoided the dependency on C.  With --fine-grained-conflicts, the solver only
    needs to try A-1.2 and each version of B to know that there is no solution for B
    at this point in the search tree.  Then the solver can skip A-1.1 if it also
    depends on B.  Here is the log:
    
    [__0] trying: A-1.2 (user goal)
    [__1] trying: B-5.0 (dependency of A)
    [__2] unknown package: C (dependency of B)
    [__2] fail (backjumping, conflict set: B, C)
    [__1] skipping: B-4.0, B-3.0, B-2.0, B-1.0 (has the same characteristics that caused the previous version to fail: depends on 'C')
    [__1] fail (backjumping, conflict set: A, B, C)
    [__0] skipping: A-1.1, A-1.0 (has the same characteristics that caused the previous version to fail: depends on 'B')
    [__0] trying: A-8.0
    [__1] done
    
    This commit changes the type that is used for conflict sets from 'Set (Var QPN)'
    to 'Map (Var QPN) (Set Conflict)', where 'Conflict' represents a single conflict
    that caused a variable to be added to the conflict set. 'Conflict' currently
    handles three types of conflicts, though more could be added in the future:
    
    1. The package excluded a specific version of one of its dependencies.
    2. A version of the package was excluded by a constraint from one of its reverse
       dependencies.
    3. The package depends on a package that led to conflicts.
    
    'Conflict' also has an 'OtherConflict' data constructor, which covers every
    other conflict and can never cause a version to be skipped.
    
    Since conflicts are paired with variables in the conflict set, they propagate up
    the search tree using the same logic as conflict sets.  When conflict sets are
    unioned, the conflicts for each variable are also unioned.
    
    During backjumping, the solver checks whether each version of a package can be
    skipped by looking up the conflicts for its variable in the previous conflict
    set (unless it is the first version to be tried).  A version can only be skipped
    when it does not resolve any of the previous conflicts.
    
    One important design choice for this optimization was whether the information
    that is paired with conflict set variables should be limited to characteristics
    of the current package's .cabal file.  For example, when package X has a dependency
    "Y >= 1.2 && < 1.3" and the constraint conflicts with Y-1.4, X's conflict could
    be described in two ways:
    
    1. (limited to characteristics of X) X has a constraint on Y that is as
       restrictive as ">= 1.2 && < 1.3".
    2. (free to reference other packages) X excludes version 1.4 of Y.
    
    Referencing other packages is more powerful because it allows the description of
    the conflict to be more precise, which lets the solver skip more versions.  In
    the example above, the solver could skip a version of X containing the
    dependency "Y >= 1.1 && < 1.2" with the description in (2) but not with the
    description in (1).
    
    The downside of referencing other packages is that the logic is more complex.
    When the solver skips a version because if doesn't resolve the previous
    conflicts, it cannot simply reuse the previous conflict set.  The solver may
    need to add more conflicts specific to the version that was skipped.  For
    example, when the solver skips the second version of X above, it needs to add a
    conflict saying that Y was rejected by the constraint "Y >= 1.1 && < 1.2".
    
    This commit implements the design where conflicts can reference other packages.
    
    Results from running hackage-benchmark on master at
    0d4ee7ba (cabal1) and this branch (cabal2):
    
    Index-state: 2019-12-09T07:37:06Z
    Compiler: GHC 8.6.5
    Additional benchmark flags: --min-run-time-percentage-difference-to-rerun=10
    
    package                                        result1        result2              mean1       mean2     stddev1     stddev2     speedup
    AERN-RnToRm-Plot                               NoInstallPlan  NoInstallPlan       3.516s      3.049s      0.031s      0.028s      1.153
    AutoForms                                      NoInstallPlan  NoInstallPlan       8.705s      3.477s      0.054s      0.039s      2.504
    BASIC                                          NoInstallPlan  NoInstallPlan       3.073s      2.708s      0.027s      0.028s      1.135
    Blobs                                          Solution       Solution            5.037s      3.490s      0.041s      0.036s      1.443
    CMCompare                                      NoInstallPlan  NoInstallPlan       4.311s      3.345s      0.030s      0.038s      1.289
    CSPM-Interpreter                               NoInstallPlan  NoInstallPlan       3.357s      3.051s      0.025s      0.027s      1.100
    CSPM-cspm                                      NoInstallPlan  NoInstallPlan       3.357s      2.910s      0.021s      0.029s      1.153
    Cartesian                                      NoInstallPlan  NoInstallPlan       4.080s      3.483s      0.034s      0.024s      1.171
    Chart-simple                                   NoInstallPlan  NoInstallPlan       5.062s      3.677s      0.032s      0.033s      1.377
    Elm                                            BackjumpLimit  NoInstallPlan      13.716s      4.847s      0.079s      0.026s      2.830
    Eternal10Seconds                               NoInstallPlan  NoInstallPlan       2.758s      2.609s      0.046s      0.052s      1.057
    Gamgine                                        Solution       Solution            4.336s      3.451s      0.029s      0.030s      1.256
    GeBoP                                          Solution       Solution            5.002s      3.780s      0.026s      0.022s      1.323
    GenI                                           NoInstallPlan  NoInstallPlan       4.971s      3.213s      0.036s      0.073s      1.547
    Graphalyze                                     Solution       Solution            8.627s      4.698s      0.045s      0.035s      1.836
    GuiTV                                          BackjumpLimit  NoInstallPlan       8.704s      6.072s      0.059s      0.036s      1.434
    HGamer3D                                       NoInstallPlan  NoInstallPlan       3.073s      2.722s      0.022s      0.035s      1.129
    HGamer3D-Ogre-Binding                          NoInstallPlan  NoInstallPlan       3.443s      2.787s      0.038s      0.028s      1.235
    HGamer3D-SFML-Binding                          NoInstallPlan  NoInstallPlan       3.144s      2.712s      0.023s      0.047s      1.159
    HPlot                                          NoInstallPlan  NoInstallPlan       3.337s      2.826s      0.026s      0.022s      1.181
    HROOT                                          NoInstallPlan  NoInstallPlan       3.544s      3.168s      0.019s      0.037s      1.119
    HROOT-graf                                     NoInstallPlan  NoInstallPlan       3.418s      3.092s      0.035s      0.036s      1.105
    HaRe                                           NoInstallPlan  NoInstallPlan       3.599s      2.989s      0.032s      0.026s      1.204
    Hieroglyph                                     Solution       Solution            4.089s      3.299s      0.018s      0.019s      1.240
    HipmunkPlayground                              Solution       Solution            3.393s      3.002s      0.049s      0.031s      1.130
    INblobs                                        BackjumpLimit  NoInstallPlan       6.427s      3.697s      0.035s      0.039s      1.738
    JsonGrammar                                    NoInstallPlan  NoInstallPlan       3.080s      2.756s      0.044s      0.035s      1.118
    Michelangelo                                   NoInstallPlan  NoInstallPlan       4.511s      3.573s      0.028s      0.035s      1.263
    Monaris                                        NoInstallPlan  NoInstallPlan       3.914s      2.966s      0.028s      0.036s      1.319
    Nomyx-Language                                 NoInstallPlan  NoInstallPlan       3.295s      2.767s      0.026s      0.028s      1.191
    Nomyx-Rules                                    NoInstallPlan  NoInstallPlan       3.273s      2.777s      0.020s      0.031s      1.179
    OpenVG                                         Solution       Solution            3.541s      3.092s      0.021s      0.021s      1.145
    QuickPlot                                      NoInstallPlan  NoInstallPlan       3.672s      3.210s      0.023s      0.023s      1.144
    SourceGraph                                    NoInstallPlan  NoInstallPlan       6.356s      4.533s      0.049s      0.056s      1.402
    Spock-auth                                     Solution       Solution            4.613s      4.150s      0.026s      0.030s      1.112
    TBC                                            Solution       Solution            3.318s      2.882s      0.012s      0.019s      1.151
    WXDiffCtrl                                     NoInstallPlan  NoInstallPlan       4.880s      3.523s      0.025s      0.028s      1.385
    WaveFront                                      NoInstallPlan  NoInstallPlan       5.793s      3.746s      0.039s      0.022s      1.547
    WxGeneric                                      BackjumpLimit  NoInstallPlan       6.340s      3.612s      0.043s      0.029s      1.755
    accelerate-cuda                                NoInstallPlan  NoInstallPlan       6.312s      3.287s      0.040s      0.027s      1.920
    acme-everything                                NoInstallPlan  NoInstallPlan       6.252s      5.737s      0.034s      0.050s      1.090
    aeson-bson                                     NoInstallPlan  NoInstallPlan       3.411s      2.811s      0.019s      0.022s      1.214
    ag-pictgen                                     NoInstallPlan  NoInstallPlan       3.306s      2.743s      0.028s      0.029s      1.205
    alga                                           NoInstallPlan  NoInstallPlan       3.290s      2.836s      0.017s      0.032s      1.160
    alsa-gui                                       NoInstallPlan  NoInstallPlan       4.237s      3.333s      0.020s      0.028s      1.271
    ampersand                                      NoInstallPlan  NoInstallPlan       3.360s      2.949s      0.026s      0.025s      1.139
    analyze-client                                 NoInstallPlan  NoInstallPlan       3.395s      2.788s      0.019s      0.025s      1.218
    anansi-pandoc                                  Solution       Solution            4.766s      3.869s      0.034s      0.042s      1.232
    apiary-clientsession                           NoInstallPlan  NoInstallPlan       4.434s      3.016s      0.029s      0.036s      1.470
    apiary-cookie                                  BackjumpLimit  NoInstallPlan       5.106s      2.952s      0.037s      0.026s      1.730
    applicative-parsec                             NoInstallPlan  NoInstallPlan       3.429s      2.998s      0.032s      0.034s      1.144
    asic                                           NoInstallPlan  NoInstallPlan       3.278s      2.868s      0.024s      0.027s      1.143
    asil                                           NoInstallPlan  NoInstallPlan       4.348s      2.991s      0.029s      0.035s      1.454
    astview                                        NoInstallPlan  NoInstallPlan       3.317s      2.768s      0.031s      0.037s      1.198
    attoparsec-enumerator                          NoInstallPlan  NoInstallPlan       2.952s      2.695s      0.026s      0.013s      1.096
    audiovisual                                    NoInstallPlan  NoInstallPlan       3.305s      2.875s      0.028s      0.032s      1.149
    aws-configuration-tools                        Solution       Solution            4.445s      3.955s      0.031s      0.029s      1.124
    aws-kinesis                                    Solution       Solution            3.995s      3.544s      0.034s      0.024s      1.127
    aws-kinesis-client                             Solution       Solution            5.820s      5.270s      0.029s      0.034s      1.104
    aws-performance-tests                          NoInstallPlan  NoInstallPlan       4.495s      3.796s      0.032s      0.018s      1.184
    azure-servicebus                               BackjumpLimit  NoInstallPlan       6.367s      3.754s      0.049s      0.035s      1.696
    babylon                                        Solution       Solution            5.028s      3.652s      0.017s      0.031s      1.377
    bamboo                                         BackjumpLimit  NoInstallPlan       9.642s      4.139s      0.074s      0.041s      2.330
    bamboo-plugin-highlight                        NoInstallPlan  NoInstallPlan       5.368s      2.933s      0.034s      0.017s      1.830
    battleships                                    NoInstallPlan  NoInstallPlan       3.884s      3.155s      0.031s      0.036s      1.231
    bein                                           NoInstallPlan  NoInstallPlan       3.652s      3.267s      0.031s      0.021s      1.118
    binding-wx                                     Solution       Solution            5.070s      3.630s      0.047s      0.038s      1.397
    birch-beer                                     BackjumpLimit  NoInstallPlan       9.469s      4.206s      0.046s      0.032s      2.251
    blosum                                         NoInstallPlan  NoInstallPlan       3.354s      2.734s      0.039s      0.025s      1.227
    bluetile                                       NoInstallPlan  NoInstallPlan       3.593s      3.043s      0.028s      0.041s      1.181
    bulmex                                         Solution       Solution            5.087s      4.474s      0.037s      0.031s      1.137
    cabal-upload                                   NoInstallPlan  NoInstallPlan       2.930s      2.668s      0.028s      0.024s      1.098
    category-extras                                NoInstallPlan  NoInstallPlan       3.417s      2.916s      0.026s      0.020s      1.172
    cellrenderer-cairo                             NoInstallPlan  NoInstallPlan       3.168s      2.756s      0.029s      0.038s      1.150
    celtchar                                       NoInstallPlan  NoInstallPlan       4.298s      3.373s      0.018s      0.030s      1.274
    chu2                                           NoInstallPlan  NoInstallPlan       3.795s      2.825s      0.038s      0.029s      1.343
    citeproc-hs-pandoc-filter                      BackjumpLimit  NoInstallPlan      10.445s      4.403s      0.028s      0.022s      2.372
    cj-token                                       NoInstallPlan  NoInstallPlan       4.258s      3.235s      0.034s      0.059s      1.316
    claferwiki                                     NoInstallPlan  NoInstallPlan       5.508s      4.316s      0.027s      0.029s      1.276
    clash-systemverilog                            Solution       Solution            7.246s      4.862s      0.050s      0.033s      1.490
    clash-verilog                                  Solution       Solution            7.218s      4.853s      0.058s      0.038s      1.487
    clash-vhdl                                     Solution       Solution            7.227s      4.853s      0.036s      0.039s      1.489
    clckwrks-dot-com                               BackjumpLimit  NoInstallPlan       9.000s      4.187s      0.041s      0.033s      2.150
    clckwrks-plugin-bugs                           NoInstallPlan  NoInstallPlan       3.190s      2.742s      0.023s      0.012s      1.163
    clckwrks-theme-bootstrap                       NoInstallPlan  NoInstallPlan       4.882s      4.353s      0.037s      0.024s      1.121
    clckwrks-theme-clckwrks                        NoInstallPlan  NoInstallPlan       4.525s      3.967s      0.026s      0.023s      1.141
    clustertools                                   NoInstallPlan  NoInstallPlan       3.039s      2.764s      0.033s      0.037s      1.100
    codex                                          Solution       Solution            4.980s      4.430s      0.030s      0.020s      1.124
    combinator-interactive                         NoInstallPlan  NoInstallPlan       4.495s      3.131s      0.021s      0.023s      1.435
    computational-algebra                          NoInstallPlan  NoInstallPlan       4.601s      3.233s      0.063s      0.018s      1.423
    concraft-pl                                    BackjumpLimit  NoInstallPlan       9.683s      5.402s      0.053s      0.031s      1.793
    containers-benchmark                           NoInstallPlan  NoInstallPlan       3.651s      2.688s      0.011s      0.029s      1.358
    cqrs-example                                   NoInstallPlan  NoInstallPlan       3.295s      2.849s      0.041s      0.030s      1.157
    csv-enumerator                                 NoInstallPlan  NoInstallPlan       4.344s      2.742s      0.034s      0.026s      1.584
    darcsden                                       NoInstallPlan  NoInstallPlan       6.133s      4.395s      0.038s      0.038s      1.395
    data-object-yaml                               Unbuildable    Unbuildable         3.579s      2.921s      0.025s      0.024s      1.225
    dephd                                          NoInstallPlan  NoInstallPlan       3.041s      2.763s      0.020s      0.024s      1.101
    diagrams-wx                                    NoInstallPlan  NoInstallPlan       3.297s      2.905s      0.020s      0.041s      1.135
    dialog                                         NoInstallPlan  NoInstallPlan       4.014s      3.061s      0.032s      0.046s      1.311
    digestive-functors-scotty                      BackjumpLimit  Solution            6.666s      3.443s      0.026s      0.030s      1.936
    dingo-core                                     NoInstallPlan  NoInstallPlan       3.406s      2.821s      0.032s      0.043s      1.207
    distribution-plot                              NoInstallPlan  NoInstallPlan       3.446s      3.102s      0.026s      0.017s      1.111
    diversity                                      BackjumpLimit  NoInstallPlan       6.946s      3.222s      0.034s      0.030s      2.156
    dow                                            Solution       Solution            3.260s      2.950s      0.049s      0.028s      1.105
    dwarfadt                                       Solution       Solution            4.500s      4.010s      0.061s      0.030s      1.122
    effect-handlers                                NoInstallPlan  NoInstallPlan       3.400s      2.982s      0.031s      0.025s      1.140
    elm-get                                        BackjumpLimit  NoInstallPlan      14.550s      6.523s      0.060s      0.026s      2.231
    elm-reactor                                    NoInstallPlan  NoInstallPlan       4.722s      3.177s      0.021s      0.034s      1.486
    elm-repl                                       BackjumpLimit  NoInstallPlan      13.642s      5.149s      0.049s      0.028s      2.649
    elm-server                                     BackjumpLimit  NoInstallPlan      11.681s      7.027s      0.020s      0.031s      1.662
    enumerator-fd                                  NoInstallPlan  NoInstallPlan       3.304s      2.757s      0.021s      0.033s      1.198
    eventful-postgresql                            Solution       Solution            4.152s      3.538s      0.042s      0.025s      1.174
    eventful-sqlite                                Solution       Solution            4.069s      3.386s      0.038s      0.038s      1.202
    ez-couch                                       Solution       Solution            4.356s      3.634s      0.024s      0.020s      1.199
    family-tree                                    Solution       Solution            4.573s      3.522s      0.048s      0.018s      1.298
    fasta                                          NoInstallPlan  NoInstallPlan       4.754s      2.925s      0.028s      0.031s      1.625
    fb-persistent                                  BackjumpLimit  NoInstallPlan      14.438s      3.909s      0.088s      0.033s      3.693
    festung                                        NoInstallPlan  NoInstallPlan       9.126s      3.914s      0.048s      0.027s      2.332
    fibon                                          NoInstallPlan  NoInstallPlan       2.856s      2.593s      0.031s      0.048s      1.102
    filesystem-enumerator                          NoInstallPlan  NoInstallPlan       3.198s      2.762s      0.019s      0.023s      1.158
    forml                                          NoInstallPlan  NoInstallPlan       9.324s      5.014s      0.039s      0.052s      1.859
    foscam-sort                                    NoInstallPlan  NoInstallPlan       4.178s      3.306s      0.013s      0.039s      1.264
    fpco-api                                       BackjumpLimit  Solution           12.008s      6.003s      0.053s      0.025s      2.000
    geek-server                                    NoInstallPlan  NoInstallPlan       8.774s      3.491s      0.041s      0.020s      2.513
    geni-gui                                       NoInstallPlan  NoInstallPlan       6.212s      3.488s      0.027s      0.018s      1.781
    ghc-vis                                        NoInstallPlan  NoInstallPlan       3.731s      3.203s      0.021s      0.021s      1.165
    ghcjs-dom-hello                                Solution       Solution            7.211s      6.613s      0.122s      0.179s      1.090
    ghcjs-dom-webkit                               NoInstallPlan  NoInstallPlan       3.717s      3.343s      0.034s      0.031s      1.112
    ghclive                                        NoInstallPlan  NoInstallPlan       6.898s      3.761s      0.043s      0.032s      1.834
    github-backup                                  BackjumpLimit  Solution            9.061s      4.806s      0.040s      0.039s      1.885
    gmndl                                          NoInstallPlan  NoInstallPlan       4.953s      3.935s      0.035s      0.032s      1.259
    gnome-desktop                                  NoInstallPlan  NoInstallPlan       3.154s      2.730s      0.039s      0.031s      1.155
    goal-core                                      NoInstallPlan  NoInstallPlan       3.947s      3.474s      0.028s      0.018s      1.136
    google-drive                                   BackjumpLimit  NoInstallPlan       6.119s      3.896s      0.032s      0.042s      1.571
    gps2htmlReport                                 Solution       Solution            4.577s      4.126s      0.051s      0.041s      1.109
    graphicstools                                  NoInstallPlan  NoInstallPlan       4.915s      3.174s      0.025s      0.047s      1.549
    gruff                                          NoInstallPlan  NoInstallPlan       3.891s      3.281s      0.032s      0.035s      1.186
    gtk-mac-integration                            NoInstallPlan  NoInstallPlan       3.343s      2.952s      0.016s      0.023s      1.132
    gtk2hs-cast-glade                              NoInstallPlan  NoInstallPlan       3.097s      2.760s      0.021s      0.022s      1.122
    gtk2hs-cast-gnomevfs                           NoInstallPlan  NoInstallPlan       3.038s      2.702s      0.039s      0.025s      1.124
    gtk2hs-cast-gtkglext                           NoInstallPlan  NoInstallPlan       3.421s      2.962s      0.029s      0.040s      1.155
    gtk2hs-cast-gtksourceview2                     NoInstallPlan  NoInstallPlan       3.947s      3.117s      0.031s      0.028s      1.267
    gtk3-mac-integration                           NoInstallPlan  NoInstallPlan       3.488s      2.983s      0.025s      0.037s      1.170
    gtkrsync                                       NoInstallPlan  NoInstallPlan       3.226s      2.776s      0.016s      0.038s      1.162
    hack-handler-evhttp                            BackjumpLimit  NoInstallPlan       5.497s      3.269s      0.040s      0.016s      1.682
    hack-handler-simpleserver                      NoInstallPlan  NoInstallPlan       3.699s      2.999s      0.017s      0.017s      1.233
    hack-middleware-cleanpath                      NoInstallPlan  NoInstallPlan       3.359s      2.918s      0.022s      0.017s      1.151
    hack-middleware-clientsession                  NoInstallPlan  NoInstallPlan       3.297s      2.903s      0.034s      0.022s      1.136
    hack-middleware-jsonp                          NoInstallPlan  NoInstallPlan       3.350s      2.794s      0.016s      0.021s      1.199
    hack2-handler-happstack-server                 NoInstallPlan  NoInstallPlan       3.317s      2.741s      0.022s      0.017s      1.210
    hails                                          Solution       Solution            6.896s      4.685s      0.046s      0.030s      1.472
    hakyll-blaze-templates                         NoInstallPlan  NoInstallPlan       3.205s      2.815s      0.033s      0.015s      1.139
    hakyll-contrib-elm                             Solution       Solution            8.337s      6.351s      0.063s      0.030s      1.313
    hakyll-ogmarkup                                BackjumpLimit  NoInstallPlan      16.596s      4.848s      0.057s      0.052s      3.423
    halipeto                                       Solution       Solution            3.868s      4.575s      0.047s      0.018s      0.845
    happindicator                                  NoInstallPlan  NoInstallPlan       3.122s      2.723s      0.045s      0.034s      1.147
    happs-tutorial                                 NoInstallPlan  NoInstallPlan       3.653s      2.846s      0.023s      0.028s      1.284
    happstack                                      BackjumpLimit  NoInstallPlan       6.011s      3.000s      0.030s      0.032s      2.004
    happstack-clientsession                        BackjumpLimit  NoInstallPlan       7.294s      3.242s      0.026s      0.019s      2.250
    happstack-data                                 NoInstallPlan  NoInstallPlan       3.156s      2.791s      0.030s      0.025s      1.131
    happstack-dlg                                  Solution       Solution            3.289s      2.886s      0.022s      0.027s      1.140
    happstack-facebook                             NoInstallPlan  NoInstallPlan       3.560s      2.822s      0.024s      0.040s      1.261
    happstack-hamlet                               BackjumpLimit  NoInstallPlan       6.364s      3.425s      0.023s      0.022s      1.858
    happstack-heist                                BackjumpLimit  NoInstallPlan       5.232s      2.974s      0.033s      0.020s      1.759
    happstack-helpers                              NoInstallPlan  NoInstallPlan       4.138s      2.972s      0.034s      0.034s      1.393
    happstack-hstringtemplate                      BackjumpLimit  NoInstallPlan       5.636s      3.080s      0.027s      0.023s      1.830
    happstack-lite                                 BackjumpLimit  NoInstallPlan       7.494s      3.648s      0.044s      0.024s      2.054
    happstack-server-tls-cryptonite                BackjumpLimit  NoInstallPlan       8.341s      3.788s      0.040s      0.023s      2.202
    haskell-pdf-presenter                          NoInstallPlan  NoInstallPlan       3.254s      2.737s      0.014s      0.024s      1.189
    haskellscrabble                                NoInstallPlan  NoInstallPlan       4.524s      2.918s      0.025s      0.025s      1.550
    haste-perch                                    NoInstallPlan  NoInstallPlan       3.711s      3.244s      0.021s      0.024s      1.144
    hawitter                                       NoInstallPlan  NoInstallPlan       3.288s      2.810s      0.025s      0.047s      1.170
    hbro                                           NoInstallPlan  NoInstallPlan       8.560s      4.254s      0.067s      0.078s      2.012
    hbro-contrib                                   NoInstallPlan  NoInstallPlan       6.557s      4.295s      0.039s      0.024s      1.527
    heatitup-complete                              NoInstallPlan  NoInstallPlan       3.143s      2.731s      0.023s      0.035s      1.151
    hedgehog-checkers-lens                         NoInstallPlan  NoInstallPlan       3.861s      2.900s      0.032s      0.016s      1.331
    hellage                                        BackjumpLimit  NoInstallPlan       5.914s      2.990s      0.029s      0.036s      1.978
    hellnet                                        NoInstallPlan  NoInstallPlan       4.260s      2.909s      0.024s      0.038s      1.465
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    hesh                                           NoInstallPlan  NoInstallPlan       4.225s      3.286s      0.031s      0.029s      1.286
    hfiar                                          NoInstallPlan  NoInstallPlan       6.268s      3.140s      0.034s      0.051s      1.996
    hissmetrics                                    NoInstallPlan  NoInstallPlan       3.089s      2.768s      0.058s      0.028s      1.116
    hist-pl                                        NoInstallPlan  NoInstallPlan       3.379s      2.816s      0.028s      0.027s      1.200
    hledger-chart                                  NoInstallPlan  NoInstallPlan       3.162s      2.732s      0.039s      0.025s      1.158
    hledger-vty                                    NoInstallPlan  NoInstallPlan       3.335s      2.756s      0.067s      0.020s      1.210
    hoodle                                         BackjumpLimit  NoInstallPlan      20.758s      5.907s      0.155s      0.033s      3.514
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    hoodle-publish                                 BackjumpLimit  NoInstallPlan      13.920s      4.536s      0.089s      0.029s      3.069
    hoodle-render                                  NoInstallPlan  NoInstallPlan      11.423s      4.392s      0.042s      0.040s      2.601
    hpage                                          NoInstallPlan  NoInstallPlan       6.998s      3.458s      0.034s      0.033s      2.024
    hplayground                                    BackjumpLimit  NoInstallPlan       7.878s      4.227s      0.044s      0.030s      1.864
    hs-pkpass                                      NoInstallPlan  NoInstallPlan       3.191s      2.789s      0.027s      0.030s      1.144
    hsignal                                        NoInstallPlan  NoInstallPlan       3.489s      2.854s      0.031s      0.027s      1.223
    hspresent                                      Solution       Solution            3.330s      2.799s      0.027s      0.032s      1.190
    hstzaar                                        NoInstallPlan  NoInstallPlan       3.422s      2.797s      0.032s      0.029s      1.223
    http-client-lens                               NoInstallPlan  NoInstallPlan       3.381s      2.940s      0.023s      0.042s      1.150
    http-client-session                            NoInstallPlan  NoInstallPlan       3.241s      2.919s      0.036s      0.025s      1.110
    hums                                           NoInstallPlan  NoInstallPlan       3.899s      3.336s      0.031s      0.030s      1.169
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    hxournal                                       BackjumpLimit  NoInstallPlan       6.425s      3.054s      0.073s      0.033s      2.104
    hyakko                                         Solution       Solution            4.903s      3.872s      0.024s      0.021s      1.266
    hyperpublic                                    NoInstallPlan  NoInstallPlan       2.755s      2.565s      0.032s      0.039s      1.074
    i3blocks-hs-contrib                            NoInstallPlan  NoInstallPlan       3.391s      2.958s      0.023s      0.023s      1.146
    ideas-math                                     NoInstallPlan  NoInstallPlan       3.040s      2.734s      0.021s      0.024s      1.112
    imprevu-happstack                              NoInstallPlan  NoInstallPlan       3.456s      3.076s      0.024s      0.037s      1.123
    instapaper-sender                              Solution       Solution            4.099s      3.635s      0.037s      0.015s      1.128
    iptadmin                                       BackjumpLimit  NoInstallPlan       5.964s      3.152s      0.037s      0.050s      1.892
    isotope                                        Solution       Solution            3.284s      2.856s      0.032s      0.031s      1.150
    jbi                                            Solution       Solution            3.387s      3.076s      0.026s      0.013s      1.101
    jsaddle-hello                                  NoInstallPlan  NoInstallPlan       3.635s      3.209s      0.041s      0.029s      1.133
    json-pointer-hasql                             NoInstallPlan  NoInstallPlan       6.663s      3.385s      0.036s      0.020s      1.968
    kawaii                                         Solution       Solution            8.740s      5.624s      0.025s      0.028s      1.554
    keera-hails-reactive-wx                        Solution       Solution            5.056s      3.656s      0.032s      0.023s      1.383
    kevin                                          NoInstallPlan  NoInstallPlan       3.316s      2.783s      0.030s      0.027s      1.191
    lambdabot-xmpp                                 Solution       Solution            6.170s      5.441s      0.038s      0.034s      1.134
    lambdacube-bullet                              Solution       Solution            3.396s      3.114s      0.037s      0.051s      1.090
    lambdacube-engine                              Solution       Solution            3.322s      2.973s      0.020s      0.027s      1.117
    lambdiff                                       NoInstallPlan  NoInstallPlan       3.804s      2.906s      0.024s      0.037s      1.309
    language-ninja                                 NoInstallPlan  NoInstallPlan       3.051s      2.711s      0.061s      0.029s      1.125
    language-spelling                              NoInstallPlan  NoInstallPlan       3.232s      2.768s      0.025s      0.025s      1.168
    layers-game                                    Solution       Solution            3.797s      3.279s      0.027s      0.042s      1.158
    leaky                                          NoInstallPlan  NoInstallPlan       3.668s      2.997s      0.030s      0.037s      1.224
    leksah                                         NoInstallPlan  NoInstallPlan       4.632s      3.379s      0.036s      0.039s      1.371
    lhc                                            NoInstallPlan  NoInstallPlan       3.148s      2.876s      0.063s      0.033s      1.095
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    list-t-html-parser                             NoInstallPlan  NoInstallPlan       3.721s      3.011s      0.025s      0.023s      1.236
    liveplot                                       NoInstallPlan  NoInstallPlan       3.542s      2.826s      0.024s      0.036s      1.253
    llvm-general                                   NoInstallPlan  NoInstallPlan       3.325s      3.058s      0.028s      0.024s      1.087
    log                                            BackjumpLimit  Solution            7.669s      4.420s      0.039s      0.026s      1.735
    loli                                           BackjumpLimit  NoInstallPlan       5.683s      2.835s      0.024s      0.028s      2.004
    lsystem                                        BackjumpLimit  NoInstallPlan       6.314s      3.683s      0.043s      0.023s      1.714
    maid                                           NoInstallPlan  NoInstallPlan       4.421s      2.859s      0.024s      0.027s      1.547
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    manatee-all                                    NoInstallPlan  NoInstallPlan       3.651s      3.139s      0.022s      0.033s      1.163
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    manatee-curl                                   NoInstallPlan  NoInstallPlan       3.341s      2.826s      0.048s      0.036s      1.182
    manatee-editor                                 NoInstallPlan  NoInstallPlan       3.577s      2.843s      0.023s      0.025s      1.258
    manatee-filemanager                            NoInstallPlan  NoInstallPlan       3.685s      2.804s      0.021s      0.013s      1.314
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    manatee-mplayer                                NoInstallPlan  NoInstallPlan       3.136s      2.794s      0.021s      0.025s      1.122
    manatee-pdfviewer                              NoInstallPlan  NoInstallPlan       3.458s      2.828s      0.036s      0.029s      1.223
    manatee-reader                                 NoInstallPlan  NoInstallPlan       3.283s      2.813s      0.026s      0.020s      1.167
    manatee-terminal                               NoInstallPlan  NoInstallPlan       3.153s      2.764s      0.023s      0.037s      1.141
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    markup-preview                                 NoInstallPlan  NoInstallPlan       4.598s      3.678s      0.024s      0.052s      1.250
    matlab                                         NoInstallPlan  NoInstallPlan       3.323s      2.793s      0.023s      0.037s      1.190
    matsuri                                        NoInstallPlan  NoInstallPlan       3.537s      2.791s      0.032s      0.030s      1.268
    mdcat                                          NoInstallPlan  NoInstallPlan       4.085s      2.954s      0.036s      0.038s      1.383
    mediabus-fdk-aac                               BackjumpLimit  NoInstallPlan      10.903s      4.132s      0.049s      0.018s      2.639
    mellon-web                                     NoInstallPlan  NoInstallPlan       7.345s      3.736s      0.017s      0.034s      1.966
    messente                                       NoInstallPlan  NoInstallPlan       4.698s      3.269s      0.021s      0.035s      1.437
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    midimory                                       NoInstallPlan  NoInstallPlan       5.143s      3.483s      0.054s      0.028s      1.476
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    modify-fasta                                   NoInstallPlan  NoInstallPlan       4.678s      2.791s      0.027s      0.017s      1.676
    mongodb-queue                                  BackjumpLimit  Solution            7.015s      3.780s      0.044s      0.031s      1.856
    monoids                                        NoInstallPlan  NoInstallPlan       3.918s      2.805s      0.029s      0.042s      1.397
    music-parts                                    Solution       Solution            3.962s      3.598s      0.028s      0.035s      1.101
    music-util                                     NoInstallPlan  NoInstallPlan       4.276s      2.983s      0.023s      0.040s      1.433
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    netease-fm                                     Solution       Solution            3.526s      3.079s      0.019s      0.031s      1.145
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    null-canvas                                    NoInstallPlan  NoInstallPlan       4.468s      2.938s      0.031s      0.033s      1.521
    nymphaea                                       NoInstallPlan  NoInstallPlan       3.258s      2.794s      0.020s      0.035s      1.166
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    ot                                             NoInstallPlan  NoInstallPlan       3.152s      2.862s      0.059s      0.038s      1.101
    panda                                          BackjumpLimit  Solution           10.148s      5.647s      0.047s      0.039s      1.797
    paypal-api                                     NoInstallPlan  NoInstallPlan       3.297s      2.844s      0.014s      0.037s      1.159
    pdf-slave-server                               NoInstallPlan  NoInstallPlan       3.578s      3.197s      0.018s      0.048s      1.119
    perceptual-hash                                Solution       Solution            5.804s      3.876s      0.043s      0.023s      1.498
    persistent-protobuf                            Solution       Solution            4.072s      3.175s      0.027s      0.036s      1.283
    pgdl                                           Solution       Solution            4.226s      3.682s      0.023s      0.021s      1.148
    phooey                                         BackjumpLimit  NoInstallPlan       8.662s      4.400s      0.046s      0.039s      1.969
    pinpon                                         NoInstallPlan  NoInstallPlan       5.546s      4.047s      0.052s      0.018s      1.371
    pipes-conduit                                  NoInstallPlan  NoInstallPlan       2.804s      2.671s      0.026s      0.044s      1.050
    pipes-transduce                                NoInstallPlan  NoInstallPlan       3.665s      2.876s      0.022s      0.019s      1.274
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    plot-gtk                                       NoInstallPlan  NoInstallPlan       4.754s      2.916s      0.019s      0.018s      1.630
    plot-gtk3                                      NoInstallPlan  NoInstallPlan       3.439s      2.987s      0.026s      0.018s      1.151
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    pontarius-xpmn                                 NoInstallPlan  NoInstallPlan       3.389s      2.905s      0.028s      0.017s      1.167
    poppler                                        NoInstallPlan  NoInstallPlan       3.933s      3.420s      0.036s      0.031s      1.150
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    postgrest-ws                                   BackjumpLimit  NoInstallPlan      11.707s      4.717s      0.089s      0.045s      2.482
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    printcess                                      NoInstallPlan  NoInstallPlan       3.957s      3.137s      0.025s      0.037s      1.261
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    purescript-tsd-gen                             Solution       Solution            4.792s      4.273s      0.038s      0.032s      1.121
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    pushme                                         Solution       Solution            8.693s      4.317s      0.030s      0.025s      2.014
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    rail-compiler-editor                           NoInstallPlan  NoInstallPlan       7.381s      2.987s      0.027s      0.022s      2.471
    rasa-ext-slate                                 Solution       Solution            3.755s      3.351s      0.032s      0.026s      1.121
    react-haskell                                  NoInstallPlan  NoInstallPlan       5.053s      3.391s      0.023s      0.032s      1.490
    reactive                                       Solution       Solution            4.323s      2.926s      0.029s      0.029s      1.477
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    reactive-fieldtrip                             BackjumpLimit  NoInstallPlan       6.739s      3.095s      0.028s      0.045s      2.177
    reactive-glut                                  BackjumpLimit  NoInstallPlan       6.486s      2.890s      0.036s      0.026s      2.244
    reflex-dom-colonnade                           Solution       Solution            7.034s      6.734s      0.194s      0.190s      1.045
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    rhythm-game-tutorial                           NoInstallPlan  NoInstallPlan       3.855s      3.300s      0.027s      0.016s      1.168
    rob                                            Solution       Solution            3.754s      3.389s      0.024s      0.034s      1.108
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    scotty-rest                                    Solution       Solution            4.081s      3.504s      0.031s      0.045s      1.165
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    servant-auth-swagger                           Solution       Solution            3.772s      3.460s      0.025s      0.024s      1.090
    servant-auth-token                             NoInstallPlan  NoInstallPlan       4.191s      3.607s      0.029s      0.022s      1.162
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    servant-examples                               BackjumpLimit  NoInstallPlan      12.497s      3.746s      0.059s      0.039s      3.336
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    sgrep                                          NoInstallPlan  NoInstallPlan       3.000s      2.716s      0.021s      0.025s      1.104
    shuffle                                        NoInstallPlan  NoInstallPlan       3.196s      2.863s      0.019s      0.035s      1.116
    simpleprelude                                  NoInstallPlan  NoInstallPlan       2.788s      2.601s      0.030s      0.062s      1.072
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    snap-elm                                       BackjumpLimit  NoInstallPlan      12.454s      4.631s      0.052s      0.020s      2.690
    snap-web-routes                                NoInstallPlan  NoInstallPlan       3.382s      2.973s      0.028s      0.030s      1.137
    snaplet-acid-state                             NoInstallPlan  NoInstallPlan       3.487s      2.913s      0.021s      0.017s      1.197
    snaplet-actionlog                              NoInstallPlan  NoInstallPlan       4.142s      3.330s      0.019s      0.031s      1.244
    snaplet-coffee                                 NoInstallPlan  NoInstallPlan       4.566s      3.543s      0.036s      0.032s      1.289
    snaplet-css-min                                NoInstallPlan  NoInstallPlan       5.301s      2.971s      0.029s      0.020s      1.784
    snaplet-customauth                             NoInstallPlan  NoInstallPlan       4.249s      3.591s      0.025s      0.037s      1.183
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    snaplet-mysql-simple                           NoInstallPlan  NoInstallPlan       3.670s      2.961s      0.024s      0.016s      1.239
    snaplet-persistent                             NoInstallPlan  NoInstallPlan       6.576s      4.441s      0.032s      0.032s      1.481
    snaplet-redson                                 NoInstallPlan  NoInstallPlan       2.975s      2.701s      0.028s      0.012s      1.101
    snaplet-sedna                                  NoInstallPlan  NoInstallPlan       3.784s      4.431s      0.020s      0.035s      0.854
    snaplet-sqlite-simple                          NoInstallPlan  NoInstallPlan       3.695s      3.032s      0.046s      0.018s      1.219
    socketio                                       NoInstallPlan  NoInstallPlan       3.091s      2.779s      0.032s      0.033s      1.112
    soegtk                                         NoInstallPlan  NoInstallPlan       3.315s      3.013s      0.027s      0.019s      1.100
    spike                                          NoInstallPlan  NoInstallPlan       3.340s      2.770s      0.028s      0.017s      1.206
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    sssp                                           NoInstallPlan  NoInstallPlan       3.701s      3.209s      0.025s      0.033s      1.153
    stack-run-auto                                 NoInstallPlan  NoInstallPlan       5.384s      4.049s      0.025s      0.039s      1.330
    stackage                                       BackjumpLimit  Solution            7.417s      4.820s      0.058s      0.044s      1.539
    stackage-build-plan                            NoInstallPlan  NoInstallPlan       5.537s      4.026s      0.059s      0.083s      1.375
    stackage-types                                 NoInstallPlan  NoInstallPlan       3.482s      2.897s      0.030s      0.029s      1.202
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    stripe                                         Solution       Solution            3.511s      3.182s      0.044s      0.032s      1.103
    sunroof-examples                               NoInstallPlan  NoInstallPlan       3.221s      2.960s      0.025s      0.045s      1.088
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    t3-server                                      NoInstallPlan  NoInstallPlan       4.534s      3.273s      0.025s      0.026s      1.385
    tamarin-prover-term                            NoInstallPlan  NoInstallPlan       2.810s      2.629s      0.014s      0.053s      1.069
    tcache-AWS                                     Solution       Solution            4.669s      3.733s      0.039s      0.037s      1.251
    tellbot                                        BackjumpLimit  NoInstallPlan       6.123s      3.330s      0.037s      0.025s      1.839
    text-icu-normalized                            Solution       Solution            4.748s      3.629s      0.028s      0.030s      1.308
    thumbnail-plus                                 NoInstallPlan  NoInstallPlan       3.221s      2.785s      0.037s      0.017s      1.157
    tickle                                         NoInstallPlan  NoInstallPlan       4.934s      3.991s      0.035s      0.019s      1.236
    tiger                                          NoInstallPlan  NoInstallPlan       3.066s      2.715s      0.050s      0.034s      1.129
    tightrope                                      Solution       Solution            4.995s      4.069s      0.031s      0.032s      1.227
    tighttp                                        NoInstallPlan  NoInstallPlan       3.903s      2.739s      0.030s      0.039s      1.425
    tkyprof                                        BackjumpLimit  Solution           13.516s      5.429s      0.082s      0.042s      2.490
    toktok                                         NoInstallPlan  NoInstallPlan       3.373s      2.883s      0.014s      0.038s      1.170
    too-many-cells                                 BackjumpLimit  NoInstallPlan      10.111s      4.412s      0.054s      0.031s      2.292
    travis                                         Solution       Solution            3.419s      3.085s      0.026s      0.024s      1.108
    traypoweroff                                   NoInstallPlan  NoInstallPlan       2.839s      2.590s      0.024s      0.050s      1.096
    twidge                                         NoInstallPlan  NoInstallPlan       3.424s      2.865s      0.026s      0.022s      1.195
    typescript-docs                                NoInstallPlan  NoInstallPlan       3.357s      3.012s      0.035s      0.016s      1.114
    unitym-yesod                                   NoInstallPlan  NoInstallPlan       4.123s      3.240s      0.031s      0.028s      1.273
    unix-process-conduit                           NoInstallPlan  NoInstallPlan       3.027s      2.762s      0.052s      0.023s      1.096
    uri-parse                                      NoInstallPlan  NoInstallPlan       4.532s      3.390s      0.031s      0.028s      1.337
    uu-cco-examples                                Solution       Solution            3.172s      2.760s      0.058s      0.041s      1.149
    uuagc                                          NoInstallPlan  NoInstallPlan       3.287s      2.718s      0.023s      0.018s      1.209
    validate-input                                 NoInstallPlan  NoInstallPlan       5.469s      3.165s      0.043s      0.019s      1.728
    verify                                         NoInstallPlan  NoInstallPlan       4.204s      3.193s      0.037s      0.047s      1.317
    vtegtk3                                        NoInstallPlan  NoInstallPlan       3.202s      2.967s      0.032s      0.049s      1.079
    vty-ui                                         NoInstallPlan  NoInstallPlan       3.656s      2.961s      0.024s      0.029s      1.235
    wai-handler-devel                              NoInstallPlan  NoInstallPlan       5.897s      3.232s      0.061s      0.038s      1.825
    wai-lite                                       NoInstallPlan  NoInstallPlan       3.107s      2.813s      0.039s      0.026s      1.105
    wai-middleware-cache-redis                     NoInstallPlan  NoInstallPlan       3.619s      2.734s      0.018s      0.023s      1.324
    wai-middleware-route                           Solution       Solution            3.792s      2.902s      0.027s      0.022s      1.307
    wai-throttler                                  NoInstallPlan  NoInstallPlan       3.445s      2.922s      0.019s      0.037s      1.179
    warp-dynamic                                   NoInstallPlan  NoInstallPlan       3.040s      2.641s      0.021s      0.033s      1.151
    warp-static                                    NoInstallPlan  NoInstallPlan       3.395s      2.790s      0.009s      0.030s      1.217
    web-browser-in-haskell                         NoInstallPlan  NoInstallPlan       3.749s      2.971s      0.049s      0.028s      1.262
    web-encodings                                  NoInstallPlan  NoInstallPlan       3.118s      2.880s      0.056s      0.042s      1.082
    webkit                                         NoInstallPlan  NoInstallPlan       3.840s      3.115s      0.028s      0.057s      1.233
    webkitgtk3                                     NoInstallPlan  NoInstallPlan       3.718s      3.098s      0.026s      0.060s      1.200
    websnap                                        NoInstallPlan  NoInstallPlan       3.730s      2.962s      0.020s      0.040s      1.259
    werewolf                                       Solution       Solution            3.692s      3.286s      0.034s      0.038s      1.124
    wobsurv                                        NoInstallPlan  NoInstallPlan       3.292s      2.943s      0.028s      0.040s      1.119
    wordchoice                                     Solution       Solution            5.822s      4.729s      0.030s      0.020s      1.231
    wx                                             BackjumpLimit  Solution            8.170s      5.570s      0.046s      0.041s      1.467
    wxAsteroids                                    BackjumpLimit  Solution            7.319s      3.943s      0.035s      0.022s      1.856
    wxFruit                                        Solution       Solution            4.706s      3.691s      0.022s      0.036s      1.275
    wxc                                            NoInstallPlan  NoInstallPlan       4.619s      3.004s      0.041s      0.035s      1.538
    wxcore                                         Solution       Solution            5.077s      3.650s      0.025s      0.023s      1.391
    wxdirect                                       NoInstallPlan  NoInstallPlan       3.605s      3.083s      0.054s      0.028s      1.169
    wxhnotepad                                     NoInstallPlan  NoInstallPlan       4.686s      3.422s      0.054s      0.019s      1.369
    xdcc                                           NoInstallPlan  NoInstallPlan       3.205s      2.873s      0.021s      0.022s      1.116
    xml-pipe                                       NoInstallPlan  NoInstallPlan       3.167s      2.674s      0.016s      0.025s      1.184
    xmpipe                                         NoInstallPlan  NoInstallPlan       3.579s      2.746s      0.037s      0.023s      1.303
    xournal-render                                 NoInstallPlan  NoInstallPlan       3.638s      2.805s      0.027s      0.022s      1.297
    xtc                                            Solution       Solution            5.028s      3.634s      0.034s      0.021s      1.384
    yesod-auth-account-fork                        BackjumpLimit  NoInstallPlan       7.659s      3.841s      0.040s      0.060s      1.994
    yesod-auth-bcrypt                              NoInstallPlan  NoInstallPlan       8.870s      3.970s      0.042s      0.016s      2.234
    yesod-auth-deskcom                             NoInstallPlan  NoInstallPlan       4.654s      3.413s      0.027s      0.047s      1.364
    yesod-auth-ldap                                NoInstallPlan  NoInstallPlan       2.996s      2.751s      0.020s      0.024s      1.089
    yesod-auth-nopassword                          NoInstallPlan  NoInstallPlan       4.579s      3.880s      0.024s      0.027s      1.180
    yesod-auth-zendesk                             NoInstallPlan  NoInstallPlan       4.519s      3.111s      0.029s      0.019s      1.452
    yesod-comments                                 BackjumpLimit  NoInstallPlan       6.942s      3.679s      0.046s      0.018s      1.887
    yesod-crud                                     NoInstallPlan  NoInstallPlan       3.521s      3.189s      0.034s      0.055s      1.104
    yesod-form-richtext                            NoInstallPlan  NoInstallPlan       4.928s      3.741s      0.028s      0.020s      1.317
    yesod-goodies                                  NoInstallPlan  NoInstallPlan       3.552s      2.733s      0.038s      0.043s      1.299
    yesod-job-queue                                Solution       Solution            7.796s      6.027s      0.063s      0.035s      1.293
    yesod-links                                    NoInstallPlan  NoInstallPlan       4.181s      3.117s      0.014s      0.029s      1.341
    yesod-lucid                                    NoInstallPlan  NoInstallPlan       3.910s      3.414s      0.026s      0.033s      1.145
    yesod-mangopay                                 BackjumpLimit  NoInstallPlan       7.016s      3.461s      0.058s      0.026s      2.027
    yesod-paypal-rest                              NoInstallPlan  NoInstallPlan       3.867s      3.387s      0.020s      0.016s      1.142
    yesod-platform                                 NoInstallPlan  NoInstallPlan       3.551s      3.159s      0.035s      0.059s      1.124
    yesod-pure                                     Solution       Solution            4.620s      3.791s      0.038s      0.037s      1.219
    yesod-purescript                               NoInstallPlan  NoInstallPlan       5.426s      3.827s      0.074s      0.027s      1.418
    yesod-recaptcha                                BackjumpLimit  NoInstallPlan      15.046s      4.573s      0.085s      0.030s      3.290
    yesod-sass                                     NoInstallPlan  NoInstallPlan       3.081s      2.820s      0.026s      0.033s      1.092
    yesod-session-redis                            NoInstallPlan  NoInstallPlan       5.285s      3.769s      0.066s      0.022s      1.402
    yesod-static-angular                           BackjumpLimit  NoInstallPlan       7.646s      3.549s      0.030s      0.026s      2.155
    yesod-tls                                      NoInstallPlan  NoInstallPlan       4.109s      3.256s      0.014s      0.057s      1.262
    yesod-vend                                     NoInstallPlan  NoInstallPlan       4.952s      3.769s      0.049s      0.039s      1.314
    yi-contrib                                     UnbuildableDep UnbuildableDep      3.663s      2.949s      0.028s      0.032s      1.242
    yi-frontend-pango                              NoInstallPlan  NoInstallPlan       3.735s      3.175s      0.034s      0.021s      1.176
    z85                                            NoInstallPlan  NoInstallPlan       4.004s      2.927s      0.034s      0.027s      1.368
    zephyr                                         Solution       Solution            4.482s      4.189s      0.053s      0.053s      1.070
    zeroth                                         Solution       Solution            3.383s      2.866s      0.021s      0.023s      1.180
    zifter-stack                                   Solution       Solution            3.338s      3.040s      0.042s      0.035s      1.098
    ziptastic-client                               BackjumpLimit  NoInstallPlan      18.042s      4.060s      0.110s      0.034s      4.443
    zoom-cache-sndfile                             NoInstallPlan  NoInstallPlan       3.622s      2.844s      0.025s      0.022s      1.274
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nix-local-build.rst 77.8 KB