Package irmin-unix

Failed to find a solution:

no platform:
2024-01-29 15:01.59 [INFO] Solving for ocaml-base-compiler, ocaml,
                           irmin-unix using opam_repository_commit 251c5edf2ecdd2541c324dacb931c3606ee71eeb

2024-01-29 15:02.06 [INFO] base: eliminated all possibilities in 3.90 s

2024-01-29 15:02.06 [INFO] = base =

2024-01-29 15:02.06 [INFO] Can't find all required versions.
Selected: angstrom.0.16.0 base.v0.16.3 base-bigarray.base base-bytes.base
          base-domains.base base-nnp.base base-threads.base base-unix.base
          base64.3.5.1 bigstringaf.0.9.1 bin_prot.v0.16.0 cmdliner.1.2.0
          cohttp.6.0.0~beta2 crunch.3.3.1 csexp.1.5.2 cstruct.6.2.0
          dune.3.13.0 dune-configurator.3.13.0 fieldslib.v0.16.0 fmt.0.9.0
          hex.1.5.0 http.6.0.0~beta2 logs.0.7.0 mirage-tc.0.3.0
          ocaml-compiler-libs.v0.12.4 ocaml-config.3 ocaml-options-vanilla.1
          ocaml-syntax-shims.1.0.0 ocamlbuild.0.14.3 ocamlfind.1.9.6
          ocamlgraph.2.1.0 ppx_compare.v0.16.0 ppx_custom_printf.v0.16.0
          ppx_derivers.1.2.1 ppx_fields_conv.v0.16.0 ppx_optcomp.v0.16.0
          ppx_sexp_conv.v0.16.0 ppx_stable_witness.v0.16.0
          ppx_variants_conv.v0.16.0 ppxlib.0.31.0 ptime.1.1.0 re.1.11.0
          seq.base sexplib0.v0.16.0 stdio.v0.16.0 stdlib-shims.0.3.0
          stringext.1.6.0 topkg.1.0.7 uri.4.4.0 uri-sexp.4.4.0
          variantslib.v0.16.0 irmin-unix&ocaml&ocaml-base-compiler
          ocaml-base-compiler ocaml-base-compiler ocaml base-domains ocaml
          ocaml-base-compiler
- dolog -> (problem)
    irmin 0.9.8 requires >= 0.4 & < 4.0.0
    Rejected candidates:
      dolog.6.0.0: Incompatible with restriction: >= 0.4 & < 4.0.0
      dolog.4.0.0: Incompatible with restriction: >= 0.4 & < 4.0.0
      dolog.3.0: Requires ocaml < 5.0.0
      dolog.2.0: Requires ocaml < 5.0.0
      dolog.1.1: Requires ocaml < 5.0.0
      ...
- ezjsonm -> (problem)
    irmin 0.9.8 requires >= 0.4.0 & < 0.4.2
    Rejected candidates:
      ezjsonm.1.3.0: Incompatible with restriction: >= 0.4.0 & < 0.4.2
      ezjsonm.1.2.0: Incompatible with restriction: >= 0.4.0 & < 0.4.2
      ezjsonm.1.1.0: Incompatible with restriction: >= 0.4.0 & < 0.4.2
      ezjsonm.1.0.0: Incompatible with restriction: >= 0.4.0 & < 0.4.2
      ezjsonm.0.6.0: Incompatible with restriction: >= 0.4.0 & < 0.4.2
      ...
- git -> (problem)
    irmin 0.9.8 requires not(>= 1.7.0)
    Rejected candidates:
      git.3.14.0: Incompatible with restriction: not(>= 1.7.0)
      git.3.13.0: Incompatible with restriction: not(>= 1.7.0)
      git.3.12.0: Incompatible with restriction: not(>= 1.7.0)
      git.3.11.0: Incompatible with restriction: not(>= 1.7.0)
      git.3.10.1: Incompatible with restriction: not(>= 1.7.0)
      ...
- irmin -> irmin.0.9.8
    irmin-unix 0.9.4 requires >= 0.9.4 & < 0.9.9
- irmin-unix -> irmin-unix.0.9.4
    User requested = 0.9.4
- lwt -> (problem)
    irmin 0.9.8 requires >= 2.4.7 & < 2.7.0
    Rejected candidates:
      lwt.5.7.0: Incompatible with restriction: >= 2.4.7 & < 2.7.0
      lwt.5.6.1: Incompatible with restriction: >= 2.4.7 & < 2.7.0
      lwt.5.6.0: Incompatible with restriction: >= 2.4.7 & < 2.7.0
      lwt.5.5.0: Incompatible with restriction: >= 2.4.7 & < 2.7.0
      lwt.5.4.2: Incompatible with restriction: >= 2.4.7 & < 2.7.0
      ...
- mstruct -> (problem)
    mirage-tc 0.3.0 requires >= 1.3.1
    Rejected candidates:
      mstruct.1.4.0: Requires cstruct >= 2.4.0 & < 6.1.0
      mstruct.1.3.4: Requires ocaml < 4.06.0
      mstruct.1.3.3: Requires ocaml < 4.06.0
      mstruct.1.3.2: Requires ocaml < 4.06.0
      mstruct.1.3.1: Requires ocaml < 4.06.0
      ...
- ocaml -> ocaml.5.1.0
    User requested <= 5.1.0
- ocaml-base-compiler -> ocaml-base-compiler.5.1.0
    User requested >= 4.04.1
    ocaml-base-compiler|ocaml-variants|ocaml-system|dkml-base-compiler ocaml-base-compiler requires >= 5.1.0~ & < 5.1.1~