✗ Solve failed — no dependency solution was found for this package version on Debian trixie, so it was never built. The solver's explanation:

Can't find all required versions.
Selected: astring.0.8.5 async.v0.18~preview.130.106+341
          async_kernel.v0.18~preview.130.106+341
          async_log.v0.18~preview.130.106+341
          async_rpc_kernel.v0.18~preview.130.106+341
          async_unix.v0.18~preview.130.106+341 base-bigarray.base
          base-domains.base base-nnp.base base-threads.base base-unix.base
          base_bigstring.v0.18~preview.130.106+341
          base_internalhash_types.v0.18~preview.130.106+341
          base_quickcheck.v0.18~preview.130.106+341
          basement.v0.18~preview.130.106+341
          bin_prot.v0.18~preview.130.106+341 camlp-streams.5.0.1
          capitalization.v0.18~preview.130.106+341
          capsule.v0.18~preview.130.106+341
          capsule0.v0.18~preview.130.106+341 cmdliner.2.1.1 conf-autoconf.1
          conf-which.1 core.v0.18~preview.130.106+341
          core_extended.v0.18~preview.130.106+341
          core_kernel.v0.18~preview.130.106+341
          core_unix.v0.18~preview.130.106+341 csexp.1.5.2 cstruct.6.3.0
          dune.3.24.2 dune-configurator.3.24.2
          expect_test_helpers_base.v0.18~preview.130.106+341
          expect_test_helpers_core.v0.18~preview.130.106+341 feather.0.3.0
          fieldslib.v0.18~preview.130.106+341
          flexible_sexp.v0.18~preview.130.106+341
          float_array.v0.18~preview.130.106+341 fmt.0.11.0
          int_repr.v0.18~preview.130.106+341
          jane-street-headers.v0.18~preview.130.106+341
          jst-config.v0.18~preview.130.106+341
          nonempty_list_type.v0.18~preview.130.106+341 num.1.6
          ocaml-compiler-libs.v0.17.0+ox ocaml-config.3
          ocaml-options-vanilla.1
          ocaml_intrinsics_kernel.v0.18~preview.130.106+341
          ocamlbuild.0.16.1+ox ocamlfind.1.9.8+ox
          odoc-parser.3.2.1+master.1791558161.c213704 oxcaml.latest
          oxcaml-patch-guards.ox parsexp.v0.18~preview.130.106+341
          pipe_with_writer_error.v0.18~preview.130.106+341
          portable.v0.18~preview.130.106+341
          ppx_assert.v0.18~preview.130.106+341
          ppx_base.v0.18~preview.130.106+341
          ppx_bench.v0.18~preview.130.106+341
          ppx_bin_prot.v0.18~preview.130.106+341
          ppx_box.v0.18~preview.130.106+341
          ppx_builtin.v0.18~preview.130.106+341
          ppx_compare.v0.18~preview.130.106+341
          ppx_custom_printf.v0.18~preview.130.106+341
          ppx_debug_assert.v0.18~preview.130.106+341 ppx_derivers.1.2.1
          ppx_diff.v0.18~preview.130.106+341
          ppx_disable_unused_warnings.v0.18~preview.130.106+341
          ppx_enumerate.v0.18~preview.130.106+341
          ppx_expect.v0.18~preview.130.106+341
          ppx_fields_conv.v0.18~preview.130.106+341
          ppx_fixed_literal.v0.18~preview.130.106+341
          ppx_fuelproof.v0.18~preview.130.106+341
          ppx_globalize.v0.18~preview.130.106+341
          ppx_hash.v0.18~preview.130.106+341
          ppx_helpers.v0.18~preview.130.106+341
          ppx_here.v0.18~preview.130.106+341
          ppx_ignore_instrumentation.v0.18~preview.130.106+341
          ppx_inline_test.v0.18~preview.130.106+341
          ppx_int63_literal.v0.18~preview.130.106+341
          ppx_jane.v0.18~preview.130.106+341
          ppx_js_style.v0.18~preview.130.106+341
          ppx_let.v0.18~preview.130.106+341 ppx_log.v0.18~preview.130.106+341
          ppx_module_timer.v0.18~preview.130.106+341
          ppx_optcomp.v0.18~preview.130.106+341
          ppx_optional.v0.18~preview.130.106+341
          ppx_pipebang.v0.18~preview.130.106+341
          ppx_portable.v0.18~preview.130.106+341
          ppx_sexp_conv.v0.18~preview.130.106+341
          ppx_sexp_message.v0.18~preview.130.106+341
          ppx_sexp_value.v0.18~preview.130.106+341
          ppx_shorthand.v0.18~preview.130.106+341
          ppx_stable.v0.18~preview.130.106+341
          ppx_stable_witness.v0.18~preview.130.106+341
          ppx_string.v0.18~preview.130.106+341
          ppx_string_conv.v0.18~preview.130.106+341
          ppx_template.v0.18~preview.130.106+341
          ppx_tydi.v0.18~preview.130.106+341
          ppx_typed_fields.v0.18~preview.130.106+341
          ppx_typerep_conv.v0.18~preview.130.106+341
          ppx_var_name.v0.18~preview.130.106+341
          ppx_variants_conv.v0.18~preview.130.106+341 ppxlib_ast.0.33.0+ox2
          ppxlib_jane.v0.18~preview.130.106+341
          protocol_version_header.v0.18~preview.130.106+341 re.1.14.0+ox
          record_builder.v0.18~preview.130.106+341 seq.base
          sexp_pretty.v0.18~preview.130.106+341
          sexp_type.v0.18~preview.130.106+341
          sexplib.v0.18~preview.130.106+341
          sexplib0.v0.18~preview.130.106+341 spawn.v0.17.0
          splittable_random.v0.18~preview.130.106+341
          stdio.v0.18~preview.130.106+341 stdlib-shims.0.3.0
          string_dict.v0.18~preview.130.106+341
          textutils.v0.18~preview.130.106+341
          time_now.v0.18~preview.130.106+341 topkg.1.1.1+ox
          typerep.v0.18~preview.130.106+341 unboxed.v0.18~preview.130.106+341
          unique.v0.18~preview.130.106+341 univ_map.v0.18~preview.130.106+341
          uopt.v0.18~preview.130.106+341 uutf.1.0.4+ox
          variantslib.v0.18~preview.130.106+341 ocaml-variants&feather_async
          ocaml ocaml-base-compiler ocaml-base-compiler base-domains
          ocaml-base-compiler oxcaml-angstrom-patches ocaml
- base -> (problem)
    base_bigstring v0.18~preview.130.106+341 requires = v0.18~preview.130.106+341
    feather 0.3.0 requires >= v0.14.0 & < v0.17
    Rejected candidates:
      base.v0.18~preview.130.106+341: Incompatible with restriction: >= v0.14.0 & < v0.17
      base.v0.18~preview.130.100+614: Requires base_internalhash_types = v0.18~preview.130.100+614
      base.v0.18~preview.130.91+190: Requires basement = v0.18~preview.130.91+190
      base.v0.18~preview.130.83+317: Requires basement = v0.18~preview.130.83+317
      base.v0.17.3: Requires ocaml_intrinsics_kernel >= v0.17.0 & < v0.18~
      base.v0.17.2: Incompatible with restriction: = v0.18~preview.130.106+341
      base.v0.17.1: Requires ocaml_intrinsics_kernel >= v0.17 & < v0.18~
      base.v0.17.0: Requires sexplib0 >= v0.17 & < v0.18~
      base.v0.16.5: Requires sexplib0 >= v0.16 & < v0.17
      base.v0.16.4: Requires sexplib0 >= v0.16 & < v0.17
      base.v0.16.3: Requires sexplib0 >= v0.16 & < v0.17
      base.v0.16.2: Requires sexplib0 >= v0.16 & < v0.17
      base.v0.16.1: Requires sexplib0 >= v0.16 & < v0.17
      base.v0.16.0: Requires sexplib0 >= v0.16 & < v0.17
      base.v0.15.2: Requires sexplib0 >= v0.15 & < v0.16
      base.v0.15.1: Requires sexplib0 >= v0.15 & < v0.16
      base.v0.15.0: Requires ocaml >= 4.10.0 & < 5.0
      base.v0.14.4: Requires sexplib0 >= v0.14 & < v0.15
      base.v0.14.3: Requires sexplib0 >= v0.14 & < v0.15
      base.v0.14.2: Requires sexplib0 >= v0.14 & < v0.15
      base.v0.14.1: Requires ocaml >= 4.08.0 & < 4.14
      base.v0.14.0: Requires ocaml >= 4.07.0 & < 4.12
      base.v0.13.2: Requires ocaml >= 4.04.2 & < 4.12
      base.v0.13.1: Requires ocaml >= 4.04.2 & < 4.12
- feather_async -> feather_async.0.3.0
    User requested = 0.3.0
- ocaml -> ocaml.5.2.0
    User requested = 5.2.0
- ocaml-base-compiler -> (problem)
    Rejected candidates:
      ocaml-base-compiler.5.5.1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.5.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.5.0~rc1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.5.0~beta1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.5.0~alpha3: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.5.0~alpha1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.4.1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.4.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.4.0~rc1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.4.0~beta2: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.4.0~beta1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.4.0~alpha1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.3.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.2.1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.2.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.1.1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.1.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.0.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.4.14.4: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.4.14.3: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.4.14.2: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.4.14.2~rc1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.4.14.1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.4.14.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.4.13.1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.4.13.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.4.12.1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.4.12.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.4.11.2: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.4.11.1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.4.11.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
- ocaml-variants -> ocaml-variants.5.2.0+ox
    User requested = 5.2.0+ox
- oxcaml-angstrom-patches -> (problem)
    Rejected candidates:
      oxcaml-angstrom-patches.enabled: Requires oxcaml-compiler not(< 5.4.0-ox1)
- oxcaml-compiler -> oxcaml-compiler.5.2.0minus39
    async v0.18~preview.130.106+341 requires not(< 5.2.0minus39 | >= 5.4.0-ox1)
- ppxlib -> ppxlib.0.35.0
    base_quickcheck v0.18~preview.130.106+341 requires >= 0.33.0 & < 0.36.0

If you believe feather_async.0.3.0 should be installable on Debian trixie, please comment on the ocurrent/ocaml-docs-ci issues: find issue · report issue