✗ 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: angstrom.0.16.1 asn1-combinators.0.3.3 astring.0.8.5
          base.v0.18~preview.130.106+341 base-bigarray.base base-bytes.base
          base-domains.base base-nnp.base base-threads.base base-unix.base
          base64.3.5.2 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 bigstringaf.0.10.0
          bin_prot.v0.18~preview.130.106+341 biniou.1.2.2 bos.0.3.0
          ca-certs.1.0.3 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 cohttp.6.3.0
          cohttp-lwt.6.3.0 cohttp-lwt-unix.6.3.0 comby-kernel.1.7.0
          comby-semantic.1.7.0 conduit.8.0.0 conduit-lwt.8.0.0
          conduit-lwt-unix.8.0.0 conf-autoconf.1 conf-gmp.5
          conf-gmp-powm-sec.4 conf-libev.4-13 conf-libpcre.2 conf-m4.1
          conf-pkg-config.5 conf-sqlite3.1 conf-which.1 conf-zlib.1
          core.v0.18~preview.130.106+341 core_unix.v0.18~preview.130.106+341
          cppo.1.8.0 cpu.2.0.0 csexp.1.5.2 cstruct.6.3.0 digestif.1.3.1
          domain-name.0.5.0 dune.3.24.2 dune-compiledb.0.6.0
          dune-configurator.3.24.2 duration.0.3.1 easy-format.1.3.4 eqaf.0.10
          expect_test_helpers_base.v0.18~preview.130.106+341
          expect_test_helpers_core.v0.18~preview.130.106+341 ezjsonm.1.3.0
          fieldslib.v0.18~preview.130.106+341 fmt.0.11.0 fpath.0.7.3
          gmap.0.3.0 hex.1.5.0 http.6.3.0 ISO8601.0.2.6
          int_repr.v0.18~preview.130.106+341 ipaddr.5.6.2 ipaddr-sexp.5.6.2
          jane-street-headers.v0.18~preview.130.106+341 jsonm.1.0.2
          jst-config.v0.18~preview.130.106+341 kdf.1.1.2 logs.0.10.0
          lwt.6.1.2 lwt_react.1.2.0 macaddr.5.6.2 magic-mime.1.3.1
          menhir.20260209 menhirCST.20260209 menhirGLR.20260209
          menhirLib.20260209 menhirSdk.20260209 mirage-crypto.2.4.1
          mirage-crypto-ec.2.4.1 mirage-crypto-pk.2.4.1
          mirage-crypto-rng.2.4.1 mparser.1.3 mparser-pcre.1.3
          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-syntax-shims.1.0.0
          ocaml_intrinsics_kernel.v0.18~preview.130.106+341
          ocamlbuild.0.16.1+ox ocamlfind.1.9.8+ox ocplib-endian.1.2
          odoc-parser.3.2.1+master.1791558161.c213704 ohex.0.2.0
          oxcaml.latest oxcaml-patch-guards.ox parany.14.0.1
          parsexp.v0.18~preview.130.106+341
          patience_diff.v0.18~preview.130.106+341 pcre.8.0.5
          portable.v0.18~preview.130.106+341
          ppx_array_base.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_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_deriving.6.0.3 ppx_deriving_yojson.3.9.1
          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 ptime.1.2.0 re.1.14.0+ox
          react.1.2.2 rresult.0.7.0 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 shell.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 stringext.1.6.0
          textutils.v0.18~preview.130.106+341
          time_now.v0.18~preview.130.106+341 toml.7.1.0 topkg.1.1.1+ox
          typerep.v0.18~preview.130.106+341 unique.v0.18~preview.130.106+341
          univ_map.v0.18~preview.130.106+341 uri.4.4.0 uri-sexp.4.4.0
          uutf.1.0.4+ox variantslib.v0.18~preview.130.106+341 x509.1.2.0
          zarith.1.14 ocaml-variants&comby ocaml ocaml-base-compiler
          ocaml-base-compiler base-domains ocaml-base-compiler
          oxcaml-angstrom-patches ocaml
- comby -> comby.1.7.0
    User requested = 1.7.0
- core_kernel -> (problem)
    comby-kernel 1.7.0 requires < v0.15
    Rejected candidates:
      core_kernel.v0.18~preview.130.106+341: Incompatible with restriction: < v0.15
      core_kernel.v0.18~preview.130.100+614: Incompatible with restriction: < v0.15
      core_kernel.v0.18~preview.130.91+190: Incompatible with restriction: < v0.15
      core_kernel.v0.18~preview.130.83+317: Incompatible with restriction: < v0.15
      core_kernel.v0.17.0: Incompatible with restriction: < v0.15
      core_kernel.v0.16.0: Incompatible with restriction: < v0.15
      core_kernel.v0.15.0: Incompatible with restriction: < v0.15
      core_kernel.v0.14.2: Requires base >= v0.14 & < v0.15
      core_kernel.v0.14.1: Requires base >= v0.14 & < v0.15
      core_kernel.v0.14.0: Requires ocaml >= 4.08.0 & < 4.12.0
      core_kernel.v0.13.1: Requires ocaml >= 4.08.0 & < 4.12.0
- hack_parallel -> (problem)
    Rejected candidates:
      hack_parallel.1.0.1: Requires core < v0.15
- 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 angstrom = 0.16.1+ox
- oxcaml-compiler -> oxcaml-compiler.5.2.0minus39
    base v0.18~preview.130.106+341 requires not(< 5.2.0minus39 | >= 5.4.0-ox1)
- ppxlib -> ppxlib.0.35.0
    base v0.18~preview.130.106+341 requires >= 0.33.0 & < 0.36.0
- yojson -> yojson.1.7.0
    comby 1.7.0 requires < 2.0.0

If you believe comby.1.7.0 should be installable on Debian trixie, please comment on the ocurrent/ocaml-docs-ci issues: find issue · report issue