rts: Assert that LDV profiling isn't used with parallel GC

I'm not entirely sure we are careful about ensuring this; this is a
last-ditch check.
21 jobs for master in 1 minute and 49 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Lint
passed #115877
lint
lint-linters

00:01:24

failed #115880
lint
lint-submods-branch

00:00:16

passed #115878
lint
lint-testsuite

00:01:26

passed #115879
lint
typecheck-testsuite

00:00:14

 
  Build
skipped #115882
x86_64-linux
hadrian-ghc-in-ghci
skipped #115884
x86_64-linux
release-x86_64-linux-deb9-dwarf
skipped #115883
x86_64-linux
validate-x86_64-linux-deb9-debug
skipped #115881
x86_64-linux
validate-x86_64-linux-deb9-hadrian
 
  Full Build
skipped #115886
aarch64-linux allowed to fail
validate-aarch64-linux-deb9
skipped #115887
x86_64-linux
validate-i386-linux-deb9
skipped #115885
x86_64-darwin
validate-x86_64-darwin
skipped #115888
x86_64-linux
validate-x86_64-linux-deb9-integer-simple
skipped #115889
x86_64-linux
validate-x86_64-linux-deb9-unreg
skipped #115890
x86_64-linux
validate-x86_64-linux-fedora27
skipped #115892
x86_64-windows allowed to fail
validate-x86_64-windows
skipped #115891
x86_64-windows allowed to fail
validate-x86_64-windows-hadrian
 
  Cleanup
passed #115893
x86_64-darwin
cleanup-darwin

00:00:06

 
  Packaging
skipped #115894
x86_64-linux allowed to fail
doc-tarball
 
  Testing
skipped #115895
x86_64-linux allowed to fail manual
hackage
skipped #115896
x86_64-linux
perf-nofib
 
  Deploy
skipped #115897
x86_64-linux allowed to fail
pages
 
Name Stage Failure
failed
lint-submods-branch Lint
Fetching origin
Entering 'utils/hsc2hs'
Fetching origin
$ submodchecker .git $(git rev-list $CI_COMMIT_BEFORE_SHA..$CI_COMMIT_SHA)
Submodule update(s) detected in a863c44f35720b760054e949de1b2f431f32774e:
utils/haddock => 5e333bad752b9c048ad5400b7159e32f4d3d65bd
*FAIL* commit not found in submodule repo
or not reachable from persistent branches
ERROR: Job failed: exit code 1