✗ 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 arp.4.1.0 asn1-combinators.0.3.3 astring.0.8.5
          base-bigarray.base base-bytes.base base-domains.base base-nnp.base
          base-threads.base base-unix.base base64.3.5.2 bigstringaf.0.10.0
          bos.0.3.0 ca-certs-nss.3.129-1 cmdliner.2.1.1 colombe.0.13.1
          conf-autoconf.1 conf-gmp.5 conf-gmp-powm-sec.4 conf-pkg-config.5
          conf-which.1 cppo.1.8.0 csexp.1.5.2 cstruct.6.3.0 cstruct-lwt.6.3.0
          digestif.1.3.1 domain-name.0.5.0 dune.3.24.2
          dune-configurator.3.24.2 duration.0.3.1 eqaf.0.10 ethernet.3.2.0
          fmt.0.11.0 fpath.0.7.3 gmap.0.3.0 happy-eyeballs.2.0.2
          happy-eyeballs-mirage.2.0.2 hxd.0.5.0 ipaddr.5.6.2
          ipaddr-cstruct.5.6.2 kdf.1.1.2 ke.0.6 logs.0.10.0 lru.0.3.1
          lwt.6.1.2 lwt-dllist.1.1.0 macaddr.5.6.2 macaddr-cstruct.5.6.2
          metrics.0.5.0 mirage-crypto.2.4.1 mirage-crypto-ec.2.4.1
          mirage-crypto-pk.2.4.1 mirage-crypto-rng.2.4.1 mirage-flow.5.0.0
          mirage-kv.6.1.1 mirage-mtime.5.2.0 mirage-net.4.0.0
          mirage-ptime.5.2.0 mirage-sleep.4.1.0 mtime.2.2.0 ocaml-config.3
          ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0
          ocamlbuild.0.16.1+ox ocamlfind.1.9.8+ox ocplib-endian.1.2
          ohex.0.2.0 optint.0.3.0 oxcaml.latest oxcaml-compiler.5.2.0minus39
          oxcaml-patch-guards.ox psq.0.2.1 ptime.1.2.0 randomconv.0.2.0
          rresult.0.7.0 sendmail.0.13.1 seq.base tcpip.9.0.1 tls.2.1.3
          tls-mirage.2.1.3 topkg.1.1.1+ox x509.1.2.0 zarith.1.14
          ocaml-variants&sendmail-mirage ocaml ocaml-base-compiler
          ocaml-base-compiler base-domains ocaml-base-compiler
          oxcaml-angstrom-patches ocaml
- 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
- sendmail-mirage -> sendmail-mirage.0.13.1
    User requested = 0.13.1

If you believe sendmail-mirage.0.13.1 should be installable on Debian trixie, please comment on the ocurrent/ocaml-docs-ci issues: find issue · report issue