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Building on basil
Running Day10 job:
  Sub-command: health-check
  Commit SHA: 5bf570252bd9fee71938b828ca0b86573c1e3355
  Package: feather_async.0.3.0
  OCaml version: ocaml.5.3.0
  With test: false
Worktree already exists: /var/lib/day10/worktree-5bf570252bd9fee71938b828ca0b86573c1e3355
Executing: day10 health-check --cache-dir /var/lib/day10/cache --opam-repository /var/lib/day10/worktree-5bf570252bd9fee71938b828ca0b86573c1e3355 --ocaml-version ocaml.5.3.0 --log feather_async.0.3.0
Can't find all required versions.
Selected: async.v0.17.0 async_kernel.v0.17.0 async_log.v0.17.0
          async_rpc_kernel.v0.17.0 async_unix.v0.17.0 base-threads.base
          base-unix.base core_unix.v0.17.1 csexp.1.5.2 cstruct.6.2.0
          dune.3.20.2 dune-configurator.3.20.2 feather.0.3.0 fmt.0.11.0
          jane-street-headers.v0.17.0 ocaml-base-compiler.5.4.0
          ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1
          ocamlbuild.0.16.1 ocamlfind.1.9.8 ppx_derivers.1.2.1
          ppx_expect.v0.16.2 ppxlib.0.37.0 protocol_version_header.v0.17.0
          re.1.14.0 spawn.v0.17.0 stdlib-shims.0.3.0 textutils.v0.17.0
          timezone.v0.17.0 topkg.1.1.0 uutf.1.0.4 ocaml&feather_async
          ocaml-variants ocaml-base-compiler ocaml-base-compiler
- base -> base.v0.16.4
    feather 0.3.0 requires >= v0.14.0 & < v0.17
- core -> (problem)
    async v0.17.0 requires >= v0.17 & < v0.18
    Rejected candidates:
      core.v0.17.1: Requires base >= v0.17 & < v0.18
      core.v0.17.0: Requires ocaml >= 5.1.0 & < 5.2
      core.v0.16.2: Incompatible with restriction: >= v0.17 & < v0.18
      core.v0.16.1: Incompatible with restriction: >= v0.17 & < v0.18
      core.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18
      ...
- core_kernel -> (problem)
    async v0.17.0 requires >= v0.17 & < v0.18
    Rejected candidates:
      core_kernel.v0.17.0: Requires base >= v0.17 & < v0.18
      core_kernel.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18
      core_kernel.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18
      core_kernel.v0.14.2: Incompatible with restriction: >= v0.17 & < v0.18
      core_kernel.v0.14.1: Incompatible with restriction: >= v0.17 & < v0.18
      ...
- expect_test_helpers_core -> (problem)
    core_unix v0.17.1 requires >= v0.17 & < v0.18
    Rejected candidates:
      expect_test_helpers_core.v0.17.0: Requires base >= v0.17 & < v0.18
      expect_test_helpers_core.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18
      expect_test_helpers_core.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18
      expect_test_helpers_core.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18
- feather_async -> feather_async.0.3.0
    User requested = 0.3.0
- gel -> (problem)
    Rejected candidates:
      gel.v0.17.0: Requires base >= v0.17 & < v0.18
- jst-config -> (problem)
    core_unix v0.17.1 requires >= v0.17 & < v0.18
    Rejected candidates:
      jst-config.v0.17.0: Requires base >= v0.17 & < v0.18
      jst-config.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18
      jst-config.v0.15.1: Incompatible with restriction: >= v0.17 & < v0.18
      jst-config.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18
      jst-config.v0.14.1: Incompatible with restriction: >= v0.17 & < v0.18
      ...
- ocaml -> ocaml.5.3.0
    User requested = 5.3.0
- ocaml-compiler -> (problem)
    ocaml-base-compiler 5.4.0 requires = 5.4.0
    Rejected candidates:
      ocaml-compiler.5.5: Incompatible with restriction: = 5.4.0
      ocaml-compiler.5.4.0: Requires ocaml = 5.4.0
      ocaml-compiler.5.4.0~rc1: Incompatible with restriction: = 5.4.0
      ocaml-compiler.5.4.0~beta2: Incompatible with restriction: = 5.4.0
      ocaml-compiler.5.4.0~beta1: Incompatible with restriction: = 5.4.0
      ...
- ocaml-variants -> (problem)
    Rejected candidates:
      ocaml-variants.5.5.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.1+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.0~rc1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.0~beta2+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ...
- ppx_here -> ppx_here.v0.16.0
    ppx_expect v0.16.2 requires >= v0.16 & < v0.17
- ppx_inline_test -> (problem)
    ppx_expect v0.16.2 requires >= v0.16 & < v0.17
    Rejected candidates:
      ppx_inline_test.v0.17.1: Incompatible with restriction: >= v0.16 & < v0.17
      ppx_inline_test.v0.17.0: Incompatible with restriction: >= v0.16 & < v0.17
      ppx_inline_test.v0.16.1: Requires ppxlib >= 0.28.0 & < 0.36.0
      ppx_inline_test.v0.16.0: Requires ppxlib >= 0.28.0 & < 0.36.0
      ppx_inline_test.v0.15.1: Incompatible with restriction: >= v0.16 & < v0.17
      ...
- ppx_jane -> (problem)
    async v0.17.0 requires >= v0.17 & < v0.18
    Rejected candidates:
      ppx_jane.v0.17.0: Requires ppx_expect >= v0.17 & < v0.18
      ppx_jane.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18
      ppx_jane.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18
      ppx_jane.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18
      ppx_jane.v0.13.0: Incompatible with restriction: >= v0.17 & < v0.18
      ...
- ppx_optcomp -> (problem)
    async_unix v0.17.0 requires >= v0.17 & < v0.18
    Rejected candidates:
      ppx_optcomp.v0.17.1: Requires base >= v0.17 & < v0.18
      ppx_optcomp.v0.17.0: Requires base >= v0.17 & < v0.18
      ppx_optcomp.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18
      ppx_optcomp.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18
      ppx_optcomp.v0.14.3: Incompatible with restriction: >= v0.17 & < v0.18
      ...
- sexplib -> (problem)
    core_unix v0.17.1 requires >= v0.17 & < v0.18
    Rejected candidates:
      sexplib.v0.17.0: Requires sexplib0 >= v0.17 & < v0.18
      sexplib.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18
      sexplib.v0.15.1: Incompatible with restriction: >= v0.17 & < v0.18
      sexplib.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18
      sexplib.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18
      ...
- sexplib0 -> sexplib0.v0.16.0
    base v0.16.4 requires >= v0.16 & < v0.17
- stdio -> stdio.v0.16.0
    ppx_expect v0.16.2 requires >= v0.16 & < v0.17
- uopt -> (problem)
    Rejected candidates:
      uopt.v0.17.0: Requires base >= v0.17 & < v0.18
[WARNING] no_solution
day10 command failed with exit code 1
Failed: Build failed