✗ 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-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&lwt-zmq ocaml
          ocaml-base-compiler ocaml-base-compiler base-domains
          ocaml-base-compiler oxcaml-angstrom-patches
- lwt -> (problem)
    lwt-zmq 2.1.0 requires < 5.0.0
    Rejected candidates:
      lwt.6.1.2: Incompatible with restriction: < 5.0.0
      lwt.6.1.1: Incompatible with restriction: < 5.0.0
      lwt.6.1.0: Incompatible with restriction: < 5.0.0
      lwt.6.0.0+ox: Incompatible with restriction: < 5.0.0
      lwt.6.0.0: Incompatible with restriction: < 5.0.0
      lwt.5.10.1: Incompatible with restriction: < 5.0.0
      lwt.5.10.0: Incompatible with restriction: < 5.0.0
      lwt.5.9.2+ox: Incompatible with restriction: < 5.0.0
      lwt.5.9.2: Incompatible with restriction: < 5.0.0
      lwt.5.9.1: Incompatible with restriction: < 5.0.0
      lwt.5.9.0: Incompatible with restriction: < 5.0.0
      lwt.5.8.1: Incompatible with restriction: < 5.0.0
      lwt.5.8.0: Incompatible with restriction: < 5.0.0
      lwt.5.7.0: Incompatible with restriction: < 5.0.0
      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
- lwt-zmq -> lwt-zmq.2.1.0
    User requested = 2.1.0
- 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)
- zmq -> (problem)
    lwt-zmq 2.1.0 requires >= 4.0-2 & < 5.0.0
    Rejected candidates:
      zmq.6.0.0: Incompatible with restriction: >= 4.0-2 & < 5.0.0
      zmq.5.3.0: Incompatible with restriction: >= 4.0-2 & < 5.0.0
      zmq.5.2.2: Incompatible with restriction: >= 4.0-2 & < 5.0.0
      zmq.5.2.1: Incompatible with restriction: >= 4.0-2 & < 5.0.0
      zmq.5.1.5: Incompatible with restriction: >= 4.0-2 & < 5.0.0
      zmq.5.1.4: Incompatible with restriction: >= 4.0-2 & < 5.0.0
      zmq.5.1.3: Incompatible with restriction: >= 4.0-2 & < 5.0.0
      zmq.5.1.2: Incompatible with restriction: >= 4.0-2 & < 5.0.0
      zmq.5.1.1: Incompatible with restriction: >= 4.0-2 & < 5.0.0
      zmq.5.1.0: Incompatible with restriction: >= 4.0-2 & < 5.0.0
      zmq.5.0.0: Incompatible with restriction: >= 4.0-2 & < 5.0.0
      zmq.4.0-8: Requires ocaml < 5.0.0

If you believe lwt-zmq.2.1.0 should be installable on Debian trixie, please comment on the ocurrent/ocaml-docs-ci issues: find issue · report issue