Test suite fails `--quickcheck-replay=579929`

[alaendle]

Encountered during stackage nightly build.

tree-diff> test (suite: tree-diff-test, args: --quickcheck-replay=579929)
                       
tests
  trifecta-pretty roundtrip:       OK (5.60s)
    +++ OK, passed 100 tests.
  parsec-ansi-wl-pprint roundtrip: FAIL (0.91s)
    *** Failed! Falsified (after 33 tests and 16 shrinks):
    Rec "" (fromList [("\"\n\"",Rec "" (fromList []))])
    `` {" " = `` {}}
    Rec "" (fromList [("\" \"",Rec "" (fromList []))])
    Just `` {" " = -`` {}, " " = +`` {}}
    Use --quickcheck-replay=579929 to reproduce.
    Use -p '/parsec-ansi-wl-pprint roundtrip/' to rerun this test only.
  diffBy example1:                 OK
    +++ OK, passed 1 test.
  diffBy model:                    OK (0.04s)
    +++ OK, passed 100 tests.
  Golden
    exFoo:                         OK
    MyInt1:                        OK
    MyInt2:                        OK
    MyInt3:                        OK
    Positional:                    OK
    HashSet:                       OK
      Golden file did not exist; created

1 out of 10 tests failed (6.55s)

[hololeap]

I ran into this as well:

  parsec-ansi-wl-pprint roundtrip: FAIL (1.51s)
    *** Failed! Falsified (after 35 tests and 9 shrinks):
    Lst [App "\"\n\"" []]
    [" "]
    Lst [App "\" \"" []]
    Just [-" ", +" "]
    Use --quickcheck-replay=52162 to reproduce.
    Use -p '/parsec-ansi-wl-pprint roundtrip/' to rerun this test only.

I expect this is related to nick8325/quickcheck#359

[vcunat]

Also

  parsec-ansi-wl-pprint roundtrip: FAIL (0.03s)
    *** Failed! Falsified (after 18 tests and 9 shrinks):
    Rec "" (fromList [("\"\n\"",Rec "" (fromList []))])
    `` {" " = `` {}}
    Rec "" (fromList [("\" \"",Rec "" (fromList []))])
    Just `` {" " = -`` {}, " " = +`` {}}
    Use --quickcheck-replay="(SMGen 15380172250324787474 18238017537602805667,17)" to reproduce.
    Use -p '/parsec-ansi-wl-pprint roundtrip/' to rerun this test only.

For archeologists, it came from this derivation (but the seed differs on every run, so it succeeded on a retry):
https://hydra.nixos.org/build/300802001#tabs-buildsteps