Package uring-trace

Failed to find a solution:

no platform:
2025-05-16 18:01.06 [INFO] Solving for ocaml-base-compiler,
                           uring-trace, constraints ocaml-base-compiler<=5.3.0,
                           uring-trace=0.1.0 using opam_repository_commit cf409d95af00ff822422bd76b657ed213b661401

2025-05-16 18:01.08 [INFO] base: eliminated all possibilities in 0.54 s

2025-05-16 18:01.08 [INFO] = base =

2025-05-16 18:01.08 [INFO] Can't find all required versions.
Selected: base-threads.base base-unix.base bigarray-compat.1.1.0
          bigstringaf.0.10.0 cmdliner.1.3.0 conf-bpftool.0.1.0
          conf-libffi.2.0.0 conf-liburing.0.1.0 conf-pkg-config.4 cppo.1.8.0
          csexp.1.5.2 cstruct.6.2.0 ctypes.0.23.0 ctypes-foreign.0.23.0
          domain-local-await.1.0.1 dune.3.18.2 dune-configurator.3.18.2
          dune-private-libs.3.18.2 dune-site.3.18.2 dyn.3.18.2 eio.1.2
          eio_linux.1.2 fmt.0.10.0 hmap.0.8.1 integers.0.7.0
          libbpf_maps.0.1.0 lwt-dllist.1.1.0 mtime.2.1.0 ocaml.5.5.0
          ocaml-config.3 ocaml-options-vanilla.1 ocamlbuild.0.16.1
          ocamlfind.1.9.8 optint.0.3.0 ordering.3.18.2 pp.2.0.0
          ppx_derivers.1.2.1 ppx_deriving.6.1.0 psq.0.2.1 seq.base
          stdlib-shims.0.3.0 stdune.3.18.2 thread-table.1.0.0 topkg.1.0.8
          uring.0.9 uring-trace&ocaml-base-compiler ocaml-variants
          ocaml-base-compiler ocaml-base-compiler
- libbpf -> (problem)
    No usable implementations:
      libbpf.0.1.0: Availability condition not satisfied
- ocaml-base-compiler -> ocaml-base-compiler.5.3.0
    User requested <= 5.3.0
- ocaml-compiler -> (problem)
    ocaml-base-compiler 5.3.0 requires = 5.3.0
    Rejected candidates:
      ocaml-compiler.5.5: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.4: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0: Requires ocaml = 5.3.0
      ocaml-compiler.5.3.0~rc1: Incompatible with restriction: = 5.3.0
      ocaml-compiler.5.3.0~beta2: Incompatible with restriction: = 5.3.0
      ...
- ocaml-variants -> (problem)
    Rejected candidates:
      ocaml-variants.5.5.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.1+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.3.0+BER: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ...
- ppxlib -> (problem)
    ppx_deriving 6.1.0 requires >= 0.36.0
    Rejected candidates:
      ppxlib.0.36.0: Requires ocaml >= 4.08.0 & < 5.4.0
      ppxlib.0.35.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.34.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.33.0: Incompatible with restriction: >= 0.36.0
      ppxlib.0.32.1: Incompatible with restriction: >= 0.36.0
      ...
- uring-trace -> uring-trace.0.1.0
    User requested = 0.1.0