✗ 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: base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base conf-autoconf.1 conf-pkg-config.5
          conf-which.1 ocaml-config.3 ocaml-options-vanilla.1
          ocamlbuild.0.16.1+ox ocamlfind.1.9.8+ox oxcaml.latest
          oxcaml-compiler.5.2.0minus39 oxcaml-patch-guards.ox
          ocaml-variants&usb ocaml ocaml-base-compiler ocaml-base-compiler
          base-domains ocaml-base-compiler oxcaml-angstrom-patches lwt
- lwt -> (problem)
    usb 1.3.1 requires not(>= 6~)
    lwt|lwt_ppx lwt requires >= 2.4.7 & < 4.0.0
    Rejected candidates:
      lwt.6.1.2: Incompatible with restriction: not(>= 6~)
      lwt.6.1.1: Incompatible with restriction: not(>= 6~)
      lwt.6.1.0: Incompatible with restriction: not(>= 6~)
      lwt.6.0.0+ox: Incompatible with restriction: not(>= 6~)
      lwt.6.0.0: Incompatible with restriction: not(>= 6~)
      lwt.5.10.1: Incompatible with restriction: >= 2.4.7 & < 4.0.0
      lwt.5.10.0: Incompatible with restriction: >= 2.4.7 & < 4.0.0
      lwt.5.9.2+ox: Incompatible with restriction: >= 2.4.7 & < 4.0.0
      lwt.5.9.2: Incompatible with restriction: >= 2.4.7 & < 4.0.0
      lwt.5.9.1: Incompatible with restriction: >= 2.4.7 & < 4.0.0
      lwt.5.9.0: Incompatible with restriction: >= 2.4.7 & < 4.0.0
      lwt.5.8.1: Incompatible with restriction: >= 2.4.7 & < 4.0.0
      lwt.5.8.0: Incompatible with restriction: >= 2.4.7 & < 4.0.0
      lwt.5.7.0: Incompatible with restriction: >= 2.4.7 & < 4.0.0
      lwt.5.6.1: Requires ocaml >= 4.08 & < 5.1
      lwt.5.6.0: Requires ocaml >= 4.08 & < 5.1
      lwt.5.5.0: Requires ocaml (>= 4.02.0 | >= 4.06.0) & < 5.0
      lwt.5.4.2: Requires ocaml >= 4.02.0 & < 5.0
      lwt.5.4.1: Requires ocaml >= 4.02.0 & < 5.0
      lwt.5.4.0: Requires ocaml >= 4.02.0 & < 5.0
      lwt.5.3.0: Requires ocaml >= 4.02.0 & < 4.12
      lwt.5.2.0: Requires ocaml >= 4.02.0 & < 4.12
      lwt.5.1.2: Requires ocaml >= 4.02.0 & < 4.12
      lwt.5.1.1: Requires ocaml >= 4.02.0 & < 4.12
      lwt.5.1.0: Requires ocaml >= 4.02.0 & < 4.12
      lwt.5.0.1: Requires ocaml >= 4.02.0 & < 4.12
      lwt.5.0.0: Requires ocaml >= 4.02.0 & < 4.12
      lwt.4.5.0: Requires ocaml >= 4.02.0 & < 4.12
      lwt.4.4.0: Requires ocaml >= 4.02.0 & < 4.12
      lwt.4.3.1: Requires ocaml >= 4.02.0 & < 4.12
      lwt.4.3.0: Requires ocaml >= 4.02.0 & < 4.12
      lwt.4.2.1-1: Requires ocaml >= 4.02.0 & < 4.12
      lwt.4.2.1: Requires ocaml >= 4.02.0 & < 4.12
      lwt.4.2.0: Requires ocaml >= 4.02.0 & < 4.12
- oasis -> (problem)
    Rejected candidates:
      oasis.0.4.11: Requires ocaml >= 3.12.1 & < 5.0
      oasis.0.4.10: Requires ocaml >= 3.12.1 & < 5.0
      oasis.0.4.8: Requires ocaml >= 3.12.1 & < 5.0
      oasis.0.4.7: Requires ocaml >= 3.12.1 & < 5.0
- 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)
- usb -> usb.1.3.1
    User requested = 1.3.1

If you believe usb.1.3.1 should be installable on Debian trixie, please comment on the ocurrent/ocaml-docs-ci issues: find issue · report issue