CI failures blocking Marge

Four Five Marge batch merge pipelines have failed in a row.

All have included the same underlying patches: !11238 (closed) and !11254 (closed).

Remarkably, they have all failed for different reasons.

Marge !11350 (closed)

Two failed jobs:

wasm-cross

https://gitlab.haskell.org/ghc/ghc/-/jobs/1677696

Unexpected failures:
   /builds/ghc/ghc/tmp/ghctest-qw0olz1h/test   spaces/testsuite/tests/ghc-api/downsweep/OldModLocation.run    OldModLocation [bad exit code (99): test timeout] (normal)
   /builds/ghc/ghc/tmp/ghctest-qw0olz1h/test   spaces/testsuite/tests/ghc-api/downsweep/PartialDownsweep.run  PartialDownsweep [bad exit code (99): test timeout] (normal)

js-cross

https://gitlab.haskell.org/ghc/ghc/-/jobs/1677706

Unexpected failures:
   /builds/ghc/ghc/tmp/ghctest-yxtd3rfk/test
   spaces/testsuite/tests/concurrent/should_run/throwto002.run  throwto002 [bad exit code (1)] (normal)

Marge !11351 (closed)

One failed job:

lint-ci-config

https://gitlab.haskell.org/ghc/ghc/-/jobs/1677868

Timeout pulling image from upstream Dockerhub

Marge !11352 (closed)

Two failed jobs:

js-cross

https://gitlab.haskell.org/ghc/ghc/-/jobs/1678003

Unexpected failures:
   /builds/ghc/ghc/tmp/ghctest-6d5gfs80/test spaces/libraries/process/tests/process005.run  process005 [bad stdout] (normal)

i386-deb10

https://gitlab.haskell.org/ghc/ghc/-/jobs/1677990

Unexpected failures:
   /builds/ghc/ghc/tmp/ghctest-rdsdjw36/test   spaces/testsuite/tests/rts/T7919.run  T7919 [bad exit code (99): test timeout] (normal)

Marge !11353 (closed)

One failed job:

wasm-cross

https://gitlab.haskell.org/ghc/ghc/-/jobs/1678274

Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: ghc-platform-0.1.0.0 (user goal)
[__1] trying: base-4.17.0.0/installed-4.17.0.0 (dependency of ghc-platform)
[__2] trying: hadrian-0.1.0.0 (user goal)
[__3] trying: hadrian:+selftest
[__4] trying: QuickCheck-2.14.2 (dependency of hadrian +selftest)
[__5] next goal: splitmix (dependency of QuickCheck)
[__5] rejecting: splitmix-0.1.0.4 (conflict:
base==4.17.0.0/installed-4.17.0.0, splitmix => base>=4.3 && <4.17)
[__5] skipping: splitmix-0.1.0.3, splitmix-0.1.0.2, splitmix-0.1.0.1,
splitmix-0.1, splitmix-0.0.5, splitmix-0.0.4, splitmix-0.0.3, splitmix-0.0.2,
splitmix-0.0.1, splitmix-0 (has the same characteristics that caused the
previous version to fail: excludes 'base' version 4.17.0.0)
[__5] fail (backjumping, conflict set: QuickCheck, base, splitmix)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: base, QuickCheck, splitmix, hadrian,
hadrian:selftest, ghc-platform

Marge !11354 (closed)

One failed job

stack-hadrian-build

https://gitlab.haskell.org/ghc/ghc/-/jobs/1678325

(ConnectionFailure Network.Socket.getAddrInfo (called with preferred
socket type/protocol: AddrInfo {addrFlags = [AI_ADDRCONFIG], addrFamily =
AF_UNSPEC, addrSocketType = Stream, addrProtocol = 0, addrAddress = 0.0.0.0:0,
addrCanonName = Nothing}, host name: Just "hackage.haskell.org", service name:
Just "443"): does not exist (Name does not resolve))

(Wat)