✗ 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 base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base bigstringaf.0.10.0 cmdliner.2.1.1
          conf-autoconf.1 conf-libffi.2.0.0 conf-pkg-config.5 conf-which.1
          cppo.1.8.0 csexp.1.5.2 ctypes.0.24.0+ox ctypes-foreign.0.24.0+ox
          dune.3.24.2 dune-configurator.3.24.2 integers.0.8.0 logs.0.10.0
          ocaml-config.3 ocaml-options-vanilla.1 ocaml-syntax-shims.1.0.0
          ocamlbuild.0.16.1+ox ocamlfind.1.9.8+ox oxcaml.latest
          oxcaml-compiler.5.2.0minus39 oxcaml-patch-guards.ox pg_query.0.9.8
          ppx_derivers.1.2.1 ppx_deriving.6.2.0 ptime.1.2.0
          stdlib-shims.0.3.0 stringext.1.6.0 topkg.1.1.1+ox uri.4.4.0
          ocaml-variants&ppx_rapper ocaml ocaml-base-compiler
          ocaml-base-compiler base-domains ocaml-base-compiler
          oxcaml-angstrom-patches ocaml
- base -> (problem)
    oxcaml-compiler 5.2.0minus39 requires not(< v0.18~)
    ppx_rapper 3.1.0 requires >= v0.11.1 & < v0.17
    Rejected candidates:
      base.v0.18~preview.130.106+341: Incompatible with restriction: >= v0.11.1 & < v0.17
      base.v0.18~preview.130.100+614: Requires oxcaml-compiler not(<> 5.2.0minus38)
      base.v0.18~preview.130.91+190: Incompatible with restriction: >= v0.11.1 & < v0.17
      base.v0.18~preview.130.83+317: Requires oxcaml-compiler not(> 5.2.0minus25)
      base.v0.17.3: Incompatible with restriction: not(< v0.18~)
      base.v0.17.2: Incompatible with restriction: not(< v0.18~)
      base.v0.17.1: Incompatible with restriction: not(< v0.18~)
      base.v0.17.0: Incompatible with restriction: not(< v0.18~)
      base.v0.16.5: Incompatible with restriction: not(< v0.18~)
      base.v0.16.4: Incompatible with restriction: not(< v0.18~)
      base.v0.16.3: Incompatible with restriction: not(< v0.18~)
      base.v0.16.2: Incompatible with restriction: not(< v0.18~)
      base.v0.16.1: Incompatible with restriction: not(< v0.18~)
      base.v0.16.0: Incompatible with restriction: not(< v0.18~)
      base.v0.15.2: Incompatible with restriction: not(< v0.18~)
      base.v0.15.1: Incompatible with restriction: not(< v0.18~)
      base.v0.15.0: Requires ocaml >= 4.10.0 & < 5.0
      base.v0.14.4: Incompatible with restriction: not(< v0.18~)
      base.v0.14.3: Incompatible with restriction: not(< v0.18~)
      base.v0.14.2: Incompatible with restriction: not(< v0.18~)
      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
- caqti -> caqti.1.9.0
    ppx_rapper 3.1.0 requires >= 1.7.0 & < 2.0.0~
- 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 angstrom = 0.16.1+ox
- ppx_rapper -> ppx_rapper.3.1.0
    User requested = 3.1.0
- ppxlib -> (problem)
    ppx_deriving 6.2.0 requires >= 0.36.0
    ppx_rapper 3.1.0 requires >= 0.3.1 & < 0.36.0
    Rejected candidates:
      ppxlib.0.39.0: Incompatible with restriction: >= 0.3.1 & < 0.36.0
      ppxlib.0.38.0: Incompatible with restriction: >= 0.3.1 & < 0.36.0
      ppxlib.0.37.0: Incompatible with restriction: >= 0.3.1 & < 0.36.0
      ppxlib.0.36.2: Incompatible with restriction: >= 0.3.1 & < 0.36.0
      ppxlib.0.36.0: Incompatible with restriction: >= 0.3.1 & < 0.36.0
      ppxlib.0.35.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.34.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.33.0+ox2: Incompatible with restriction: >= 0.36.0
      ppxlib.0.33.0+ox1: Incompatible with restriction: >= 0.36.0
      ppxlib.0.33.0+ox: Incompatible with restriction: >= 0.36.0
      ppxlib.0.33.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.32.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.31.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.28.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.27.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.26.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.25.1: Incompatible with restriction: >= 0.36.0
      ppxlib.0.24.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.22.2: Incompatible with restriction: >= 0.36.0
      ppxlib.0.21.1: Incompatible with restriction: >= 0.36.0
      ppxlib.0.20.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.17.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.15.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.14.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.13.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.12.0: Incompatible with restriction: >= 0.36.0

If you believe ppx_rapper.3.1.0 should be installable on Debian trixie, please comment on the ocurrent/ocaml-docs-ci issues: find issue · report issue