Package doc-ock

Failed to find a solution:

no platform:
2024-05-29 14:58.43 [INFO] Solving for ocaml-base-compiler, ocaml,
                           doc-ock using opam_repository_commit 7311123dcaba6b163a96ad2219b8cc4e59df93a3

2024-05-29 14:58.49 [INFO] base: eliminated all possibilities in 3.32 s

2024-05-29 14:58.49 [INFO] = base =

2024-05-29 14:58.49 [INFO] Can't find all required versions.
Selected: base-threads.base base-unix.base cppo.1.6.9 dune.3.15.3
          ocaml-config.3 ocaml-secondary-compiler.4.08.1-1 ocamlbuild.0.14.3
          ocamlfind.1.9.6 ocamlfind-secondary.1.9.6 octavius.1.2.2
          topkg.1.0.4 doc-ock&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler ocaml&ocamlfind-secondary
- doc-ock -> doc-ock.1.0.0
    User requested = 1.0.0
- ocaml -> ocaml.4.03.1
    User requested <= 5.1.1
    doc-ock 1.0.0 requires >= 4.03.0 & < 4.04
- ocaml-base-compiler -> (problem)
    User requested >= 4.04.1
    Rejected candidates:
      ocaml-base-compiler.5.2.0: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~rc1: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~beta2: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~beta1: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~alpha1: Requires ocaml = 5.2.0
      ...