[GHC] #15736: Testsuite failures from validate --slow

[GHC]

#15736: Testsuite failures from validate --slow
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        Reporter:  jrp               |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  highest           |            Milestone:
       Component:  Test Suite        |              Version:  8.6.1
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:  x86_64
                                     |  (amd64)
 Type of failure:  Incorrect result  |            Test Case:
  at runtime                         |  EtaExpandLevPoly T14936 T15349
                                     |  T2783 T4334 T7919 haddock.Cabal
                                     |  haddock.base haddock.compiler
                                     |  hpc_fork plugin-recomp-change
                                     |  plugin-recomp-change-prof recomp007
                                     |  space_leak_001
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by bgamari):

 > But really the root cause is that we don't have a working CI for months
 now, and I don't know what's the plan on that front. (maybe we'll be
 focusing on it after Gitlab migration?)

 To be clear, we do have working CI. CircleCI works and has been green
 (modulo a few long-standing but known issues in some specific cases) for
 more than half a year. I check on it roughly daily and try to fix issues
 as they pop up. Appveyor does admittedly have some issues.

 What we really lack is testing of differentials. This is indeed something
 that we are fixing with the move to GitLab. See, for instance,
 https://gitlab.staging.haskell.org/ghc/ghc/-/jobs.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15736#comment:15>
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