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Building on doris.caelum.ci.dev
day10 dispatch:
  verb             : health-check
  opam-repository  : <default>
  opam-repo commit : 717c44ec9929ffc34a7a733dde6f29aa59156738
  mirror           : /var/cache/obuilder/ocluster/git/opam-repository.git-b322f7b18d276db68487afc3dfc5a5befdd45818
  cache-dir        : /var/cache/day10
  ocaml-version    : ocaml.5.3.0
  package          : ppx_rapper_async.3.1.0
  os-distribution  : debian
  os-version       : 13
  with-test        : false
+ 'day10' 'health-check' '--cache-dir' '/var/cache/day10' '--log' '--opam-repository' '/var/cache/obuilder/ocluster/git/opam-repository.git-b322f7b18d276db68487afc3dfc5a5befdd45818:717c44ec9929ffc34a7a733dde6f29aa59156738' '--ocaml-version' 'ocaml.5.3.0' '--arch' 'x86_64' '--os' 'linux' '--os-distribution' 'debian' '--os-version' '13' 'ppx_rapper_async.3.1.0'
Can't find all required versions.
Selected: angstrom.0.16.1 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 bigstringaf.0.10.0
          caqti-async.1.9.0 cmdliner.2.1.1 conf-libffi.2.0.0
          conf-pkg-config.5 core_unix.v0.17.1 cppo.1.8.0 csexp.1.5.2
          cstruct.6.2.0 ctypes.0.24.0 ctypes-foreign.0.24.0 dune.3.24.0
          dune-configurator.3.24.0 fmt.0.11.0 integers.0.8.0
          jane-street-headers.v0.17.0 logs.0.10.0 ocaml-base-compiler.5.5.0
          ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0
          ocamlbuild.0.16.1 ocamlfind.1.9.8 pg_query.0.9.8 ppx_base.v0.17.0
          ppx_bench.v0.17.1 ppx_derivers.1.2.1 ppx_deriving.6.1.2
          ppx_ignore_instrumentation.v0.17.0 ppx_jane.v0.17.0
          ppx_pipebang.v0.17.0 ppx_rapper.3.1.0
          protocol_version_header.v0.17.0 ptime.1.2.0 spawn.v0.17.0
          stdlib-shims.0.3.0 stringext.1.6.0 textutils.v0.17.0
          timezone.v0.17.0 topkg.1.1.1 uri.4.4.0 uutf.1.0.4
          ocaml&ppx_rapper_async ocaml-variants ocaml-base-compiler ocaml
          ocaml-base-compiler
- base -> base.v0.16.5
    ppx_rapper 3.1.0 requires >= v0.11.1 & < v0.17
- base_quickcheck -> (problem)
    Rejected candidates:
      base_quickcheck.v0.17.1: Requires base >= v0.17 & < v0.18~
      base_quickcheck.v0.17.0: Requires base >= v0.17 & < v0.18~
      base_quickcheck.v0.16.0: Requires ppx_base >= v0.16 & < v0.17
      base_quickcheck.v0.15.0: Requires base >= v0.15 & < v0.16
      base_quickcheck.v0.14.1: Requires base >= v0.14 & < v0.15
      ...
- caqti -> caqti.1.9.0
    caqti-async 1.9.0 requires >= 1.8.0 & < 1.10.0~
- core -> (problem)
    async v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      core.v0.17.2: Requires base >= v0.17 & < v0.18~
      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_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~
- 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 5.5.0 requires = 5.5.0
    Rejected candidates:
      ocaml-compiler.5.6: Incompatible with restriction: = 5.5.0
      ocaml-compiler.5.5.0: Requires ocaml = 5.5.0
      ocaml-compiler.5.5.0~rc1: Incompatible with restriction: = 5.5.0
      ocaml-compiler.5.5.0~beta1: Incompatible with restriction: = 5.5.0
      ocaml-compiler.5.5.0~alpha3: Incompatible with restriction: = 5.5.0
      ...
- ocaml-variants -> (problem)
    Rejected candidates:
      ocaml-variants.5.6.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.1+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.0~rc1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.0~beta1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ...
- ppx_assert -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_assert.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_assert.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_assert.v0.15.0: Requires base >= v0.15 & < v0.16
      ppx_assert.v0.14.0: Requires base >= v0.14 & < v0.15
      ppx_assert.v0.13.0: Requires base >= v0.13 & < v0.14
- ppx_bin_prot -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_bin_prot.v0.17.1: Requires base >= v0.17 & < v0.18~
      ppx_bin_prot.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_bin_prot.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_bin_prot.v0.15.0: Requires base >= v0.15 & < v0.16
      ppx_bin_prot.v0.14.0: Requires base >= v0.14 & < v0.15
      ...
- ppx_cold -> (problem)
    ppx_base v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_cold.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_cold.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_cold.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_cold.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_cold.v0.13.0: Incompatible with restriction: >= v0.17 & < v0.18~
- ppx_compare -> (problem)
    ppx_base v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_compare.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_compare.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_compare.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_compare.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_compare.v0.13.0: Incompatible with restriction: >= v0.17 & < v0.18~
- ppx_custom_printf -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_custom_printf.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_custom_printf.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_custom_printf.v0.15.0: Requires base >= v0.15 & < v0.16
      ppx_custom_printf.v0.14.1: Requires base >= v0.14 & < v0.15
      ppx_custom_printf.v0.14.0: Requires base >= v0.14 & < v0.15
      ...
- ppx_disable_unused_warnings -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_disable_unused_warnings.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_disable_unused_warnings.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_disable_unused_warnings.v0.15.0: Requires base >= v0.15 & < v0.16
- ppx_enumerate -> (problem)
    ppx_base v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_enumerate.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_enumerate.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_enumerate.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_enumerate.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_enumerate.v0.13.0: Incompatible with restriction: >= v0.17 & < v0.18~
- ppx_expect -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_expect.v0.17.3: Requires base >= v0.17 & < v0.18~
      ppx_expect.v0.17.2: Requires base >= v0.17 & < v0.18~
      ppx_expect.v0.17.1: Requires base >= v0.17 & < v0.18~
      ppx_expect.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_expect.v0.16.2: Incompatible with restriction: >= v0.17 & < v0.18~
      ...
- ppx_fields_conv -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_fields_conv.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_fields_conv.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_fields_conv.v0.15.0: Requires base >= v0.15 & < v0.16
      ppx_fields_conv.v0.14.2: Requires base >= v0.14 & < v0.15
      ppx_fields_conv.v0.14.1: Requires base >= v0.14 & < v0.15
      ...
- ppx_fixed_literal -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_fixed_literal.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_fixed_literal.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_fixed_literal.v0.15.0: Requires base >= v0.15 & < v0.16
      ppx_fixed_literal.v0.14.0: Requires base >= v0.14 & < v0.15
- ppx_globalize -> (problem)
    ppx_base v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_globalize.v0.17.2: Requires base >= v0.17 & < v0.18~
      ppx_globalize.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_globalize.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
- ppx_hash -> (problem)
    ppx_base v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_hash.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_hash.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_hash.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_hash.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_hash.v0.13.0: Incompatible with restriction: >= v0.17 & < v0.18~
- ppx_here -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_here.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_here.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_here.v0.15.0: Requires base >= v0.15 & < v0.16
      ppx_here.v0.14.0: Requires base >= v0.14 & < v0.15
      ppx_here.v0.13.0: Requires base >= v0.13 & < v0.14
- ppx_inline_test -> (problem)
    ppx_bench v0.17.1 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_inline_test.v0.17.1: Requires base >= v0.17 & < v0.18~
      ppx_inline_test.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_inline_test.v0.16.1: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_inline_test.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_inline_test.v0.15.1: Incompatible with restriction: >= v0.17 & < v0.18~
      ...
- ppx_let -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_let.v0.17.1: Requires base >= v0.17 & < v0.18~
      ppx_let.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_let.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_let.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_let.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ...
- ppx_log -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_log.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_log.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_log.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_log.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18~
- ppx_module_timer -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_module_timer.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_module_timer.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_module_timer.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_module_timer.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_module_timer.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~
      ...
- ppx_optional -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_optional.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_optional.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_optional.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_optional.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_optional.v0.13.0: Incompatible with restriction: >= v0.17 & < v0.18~
- ppx_rapper_async -> ppx_rapper_async.3.1.0
    User requested = 3.1.0
- ppx_sexp_conv -> (problem)
    ppx_base v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_sexp_conv.v0.17.1: Requires base >= v0.17 & < v0.18~
      ppx_sexp_conv.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_sexp_conv.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_sexp_conv.v0.15.1: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_sexp_conv.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ...
- ppx_sexp_message -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_sexp_message.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_sexp_message.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_sexp_message.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_sexp_message.v0.14.1: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_sexp_message.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ...
- ppx_sexp_value -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_sexp_value.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_sexp_value.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_sexp_value.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_sexp_value.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_sexp_value.v0.13.0: Incompatible with restriction: >= v0.17 & < v0.18~
- ppx_stable -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_stable.v0.17.1: Requires base >= v0.17 & < v0.18~
      ppx_stable.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_stable.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_stable.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_stable.v0.14.1: Incompatible with restriction: >= v0.17 & < v0.18~
      ...
- ppx_stable_witness -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_stable_witness.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_stable_witness.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
- ppx_string -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_string.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_string.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_string.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_string.v0.14.1: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_string.v0.14.0: Incompatible with restriction: >= v0.17 & < v0.18~
- ppx_string_conv -> (problem)
    Rejected candidates:
      ppx_string_conv.v0.17.0: Requires base >= v0.17 & < v0.18~
- ppx_tydi -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_tydi.v0.17.1: Requires base >= v0.17 & < v0.18~
      ppx_tydi.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_tydi.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
- ppx_typerep_conv -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_typerep_conv.v0.17.1: Requires base >= v0.17 & < v0.18~
      ppx_typerep_conv.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_typerep_conv.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_typerep_conv.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_typerep_conv.v0.14.2: Incompatible with restriction: >= v0.17 & < v0.18~
      ...
- ppx_variants_conv -> (problem)
    ppx_jane v0.17.0 requires >= v0.17 & < v0.18~
    Rejected candidates:
      ppx_variants_conv.v0.17.1: Requires base >= v0.17 & < v0.18~
      ppx_variants_conv.v0.17.0: Requires base >= v0.17 & < v0.18~
      ppx_variants_conv.v0.16.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_variants_conv.v0.15.0: Incompatible with restriction: >= v0.17 & < v0.18~
      ppx_variants_conv.v0.14.2: Incompatible with restriction: >= v0.17 & < v0.18~
      ...
- ppxlib -> (problem)
    ppx_base v0.17.0 requires >= 0.28.0
    ppx_bench v0.17.1 requires >= 0.36.0
    ppx_rapper 3.1.0 requires >= 0.3.1 & < 0.36.0
    Rejected candidates:
      ppxlib.0.38.0: Incompatible with restriction: >= 0.3.1 & < 0.36.0
      ppxlib.0.38.0~5.5preview: Incompatible with restriction: >= 0.3.1 & < 0.36.0
      ppxlib.0.37.0: Incompatible with restriction: >= 0.3.1 & < 0.36.0
      ppxlib.0.36.2: Incompatible with restriction: >= 0.3.1 & < 0.36.0
      ppxlib.0.36.0: Incompatible with restriction: >= 0.3.1 & < 0.36.0
      ...
- 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 v0.16.5 requires >= v0.16 & < v0.17
- uopt -> (problem)
    Rejected candidates:
      uopt.v0.17.0: Requires base >= v0.17 & < v0.18~
[WARNING] no_solution
Job succeeded