✗ 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-effects.base
          base-nnp.base base-threads.base base-unix.base
          compiler-cloning.enabled dune.3.24.2 ocaml-compiler-libs.v0.17.0
          ocaml-options-vanilla.1 ppx_derivers.1.2.1 ppxlib.0.38.0
          sexplib0.v0.17.0 stdlib-shims.0.3.0 ocaml-base-compiler&lwt_ppx
          system-mingw system-mingw|system-msvc ocaml-base-compiler ocaml
          base-domains ocaml-variants ocaml ocaml-base-compiler
- lwt -> (problem)
    lwt_ppx 6.0.0~beta01 requires = 6.0.0~beta01
    Rejected candidates:
      lwt.6.1.2: Incompatible with restriction: = 6.0.0~beta01
      lwt.6.1.1: Incompatible with restriction: = 6.0.0~beta01
      lwt.6.1.0: Requires ocaml >= 4.14 & < 5.5
      lwt.6.0.0: Requires ocaml >= 4.14 & < 5.5
      lwt.5.10.1: Incompatible with restriction: = 6.0.0~beta01
      lwt.5.10.0: Requires ocaml >= 4.08 & < 5.5
      lwt.5.9.2: Requires ocaml >= 4.08 & < 5.5
      lwt.5.9.1: Requires ocaml >= 4.08 & < 5.5
      lwt.5.9.0: Requires ocaml >= 4.08 & < 5.5
      lwt.5.8.1: Requires ocaml >= 4.08 & < 5.5
      lwt.5.8.0: Requires ocaml >= 4.08 & < 5.5
      lwt.5.7.0: Requires ocaml >= 4.08 & < 5.5
      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_ppx -> lwt_ppx.6.0.0~beta01
    User requested = 6.0.0~beta01
- ocaml -> ocaml.5.5.1
    ocaml-compiler 5.5.1 requires = 5.5.1
- ocaml-base-compiler -> ocaml-base-compiler.5.5.1
    User requested >= 4.08.0
- ocaml-compiler -> ocaml-compiler.5.5.1
    ocaml-base-compiler 5.5.1 requires = 5.5.1
- ocaml-variants -> (problem)
    Rejected candidates:
      ocaml-variants.5.6.0+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.2+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.1+introcaml1: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.1+introcaml: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.0+introcaml1: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.0+introcaml0: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.0~rc1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.0~beta1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.0~alpha3+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.5.0~alpha1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.2+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.1+lrgrep: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.0~rc1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.0~beta2+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.0~beta1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.4.0~alpha1+options: 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
      ocaml-variants.5.2.2+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.2.1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.2.1~rc1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.2.0+statmemprof: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.2.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.2.0+msvc: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.2+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.1+tsan: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.1+flambda2+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.1+flambda2: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.1+effect-syntax: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.0+tsan: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.1.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.0.1+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.0.0+tsan: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.5.0.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.14.5+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.14.4+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.14.3+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.14.2+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.14.2~rc1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.14.1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.14.1+BER: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.14.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.13.2+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.13.1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.13.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.12.2+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.12.1+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.12.0+options: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.12.0+domains+effects: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.12.0+domains: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.3+trunk+fp: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.3+trunk+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.3+trunk+afl: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.3+trunk: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.2+spacetime: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.2+no-flat-float-array: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.2+musl+static+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.2+musl+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.2+fp+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.2+fp: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.2+flambda+no-flat-float-array: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.2+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.2+default-unsafe-string: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.2+bytecode-only: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.2+afl: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.2+32bit: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+spacetime: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+no-flat-float-array: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+musl+static+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+musl+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+fp+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+fp: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+flambda+no-flat-float-array: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+default-unsafe-string: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+bytecode-only: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+afl: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+BER+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+BER: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.1+32bit: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.0+spacetime: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.0+no-flat-float-array: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.0+musl+static+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.0+musl+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.0+fp+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.0+fp: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.0+flambda+no-flat-float-array: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.0+flambda: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.0+default-unsafe-string: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.0+bytecode-only: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.0+afl: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
      ocaml-variants.4.11.0+32bit: In same conflict class (ocaml-core-compiler) as ocaml-base-compiler
- system-mingw -> (problem)
    No known implementations at all

If you believe lwt_ppx.6.0.0~beta01 should be installable on Debian trixie, please comment on the ocurrent/ocaml-docs-ci issues: find issue · report issue