genprint 0.3

Error log

The package failed to build. The error log from opam follows.

Opam plugin "depext" may require upgrading/reinstalling. Reinstall the plugin on the current switch? [Y/n] y
The following actions will be performed:
  - recompile opam-depext 1.2.1-1

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved opam-depext.1.2.1-1  (cached)
-> removed   opam-depext.1.2.1-1
-> installed opam-depext.1.2.1-1
Done.

<><> opam-depext.1.2.1-1 installed successfully <><><><><><><><><><><><><><><><>
=> opam-depext is unnecessary when used with opam >= 2.1. Please use opam install directly instead
# Run eval $(opam env) to update the current shell environment

<><> Carrying on to "opam depext -viy genprint.0.3 stdlib-shims.0.3.0 sexplib0.v0.16.0 ppxlib.0.31.0 ppx_derivers.1.2.1 ocaml-compiler-libs.v0.12.4 dune.3.13.0 cppo.1.6.9" 

You are using opam 2.1+, where external dependency handling has been integrated: consider calling opam directly, the 'depext' plugin interface is provided for backwards compatibility only
# Detecting depexts using vars: arch=x86_64, os=linux, os-distribution=debian, os-family=debian
# No extra OS packages requirements found.
[NOTE] Package dune is already installed (current version is 3.13.0).
The following actions will be performed:
  - install cppo                1.6.9
  - install ppx_derivers        1.2.1
  - install ocaml-compiler-libs v0.12.4
  - install sexplib0            v0.16.0
  - install stdlib-shims        0.3.0
  - install ppxlib              0.31.0
  - install genprint            0.3
===== 7 to install =====

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  1/21:
Processing  2/21:
Processing  3/21:
-> retrieved cppo.1.6.9  (cached)
Processing  4/21:
Processing  5/21: [cppo: dune build]
-> retrieved genprint.0.3  (cached)
Processing  6/21: [cppo: dune build]
-> retrieved ocaml-compiler-libs.v0.12.4  (cached)
Processing  7/21: [cppo: dune build]
Processing  8/21: [cppo: dune build] [ocaml-compiler-libs: dune build]
-> retrieved ppx_derivers.1.2.1  (cached)
Processing  9/21: [cppo: dune build] [ocaml-compiler-libs: dune build]
Processing 10/21: [cppo: dune build] [ocaml-compiler-libs: dune build] [ppx_derivers: dune build]
-> retrieved sexplib0.v0.16.0  (cached)
Processing 11/21: [cppo: dune build] [ocaml-compiler-libs: dune build] [ppx_derivers: dune build] [sexplib0: dune build]
-> retrieved stdlib-shims.0.3.0  (cached)
Processing 12/21: [cppo: dune build] [ocaml-compiler-libs: dune build] [ppx_derivers: dune build] [sexplib0: dune build] [stdlib-shims: dune build]
-> retrieved ppxlib.0.31.0  (cached)
-> compiled  ppx_derivers.1.2.1
Processing 12/21: [cppo: dune build] [ocaml-compiler-libs: dune build] [sexplib0: dune build] [stdlib-shims: dune build]
-> installed ppx_derivers.1.2.1
Processing 13/21: [cppo: dune build] [ocaml-compiler-libs: dune build] [sexplib0: dune build] [stdlib-shims: dune build]
-> compiled  stdlib-shims.0.3.0
Processing 13/21: [cppo: dune build] [ocaml-compiler-libs: dune build] [sexplib0: dune build]
-> installed stdlib-shims.0.3.0
Processing 14/21: [cppo: dune build] [ocaml-compiler-libs: dune build] [sexplib0: dune build]
-> compiled  sexplib0.v0.16.0
Processing 14/21: [cppo: dune build] [ocaml-compiler-libs: dune build]
-> installed sexplib0.v0.16.0
Processing 15/21: [cppo: dune build] [ocaml-compiler-libs: dune build]
-> compiled  ocaml-compiler-libs.v0.12.4
Processing 15/21: [cppo: dune build]
-> installed ocaml-compiler-libs.v0.12.4
Processing 16/21: [cppo: dune build]
Processing 17/21: [cppo: dune build] [ppxlib: dune build]
-> compiled  cppo.1.6.9
Processing 17/21: [ppxlib: dune build]
-> installed cppo.1.6.9
Processing 18/21: [ppxlib: dune build]
+ /home/opam/.opam/4.10/bin/dune "build" "-p" "ppxlib" "-j" "255" "@install" (CWD=/home/opam/.opam/4.10/.opam-switch/build/ppxlib.0.31.0)
-> compiled  ppxlib.0.31.0
-> installed ppxlib.0.31.0
Processing 20/21: [genprint: dune build]
+ /home/opam/.opam/4.10/bin/dune "build" "-p" "genprint" "-j" "255" (CWD=/home/opam/.opam/4.10/.opam-switch/build/genprint.0.3)
- (cd _build/default && /home/opam/.opam/4.10/bin/ocamlc.opt -w -40 -g -bin-annot -I src/.ppx_genprint.objs/byte -I /home/opam/.opam/4.10/lib/ocaml-compiler-libs/common -I /home/opam/.opam/4.10/lib/ocaml-compiler-libs/shadow -I /home/opam/.opam/4.10/lib/ocaml/compiler-libs -I /home/opam/.opam/4.10/lib/ppx_derivers -I /home/opam/.opam/4.10/lib/ppxlib -I /home/opam/.opam/4.10/lib/ppxlib/ast -I /home/opam/.opam/4.10/lib/ppxlib/astlib -I /home/opam/.opam/4.10/lib/ppxlib/print_diff -I /home/opam/.opam/4.10/lib/ppxlib/stdppx -I /home/opam/.opam/4.10/lib/ppxlib/traverse_builtins -I /home/opam/.opam/4.10/lib/sexplib0 -I /home/opam/.opam/4.10/lib/stdlib-shims -no-alias-deps -o src/.ppx_genprint.objs/byte/ppx_genprint.cmo -c -impl src/ppx_genprint.pp.ml)
- File "ppx_genprint.cppo.ml", line 2, characters 5-9:
- Error: Unbound module Caml
[ERROR] The compilation of genprint.0.3 failed at "dune build -p genprint -j 255".

#=== ERROR while compiling genprint.0.3 =======================================#
# context              2.1.5 | linux/x86_64 | ocaml-base-compiler.4.10.2 | file:///src
# path                 ~/.opam/4.10/.opam-switch/build/genprint.0.3
# command              ~/.opam/4.10/bin/dune build -p genprint -j 255
# exit-code            1
# env-file             ~/.opam/log/genprint-113-53a1f7.env
# output-file          ~/.opam/log/genprint-113-53a1f7.out
### output ###
# (cd _build/default && /home/opam/.opam/4.10/bin/ocamlc.opt -w -40 -g -bin-annot -I src/.ppx_genprint.objs/byte -I /home/opam/.opam/4.10/lib/ocaml-compiler-libs/common -I /home/opam/.opam/4.10/lib/ocaml-compiler-libs/shadow -I /home/opam/.opam/4.10/lib/ocaml/compiler-libs -I /home/opam/.opam/4.10/lib/ppx_derivers -I /home/opam/.opam/4.10/lib/ppxlib -I /home/opam/.opam/4.10/lib/ppxlib/ast -I /home/opam/.opam/4.10/lib/ppxlib/astlib -I /home/opam/.opam/4.10/lib/ppxlib/print_diff -I /home/opam/.opam/4.10/lib/ppxlib/stdppx -I /home/opam/.opam/4.10/lib/ppxlib/traverse_builtins -I /home/opam/.opam/4.10/lib/sexplib0 -I /home/opam/.opam/4.10/lib/stdlib-shims -no-alias-deps -o src/.ppx_genprint.objs/byte/ppx_genprint.cmo -c -impl src/ppx_genprint.pp.ml)
# File "ppx_genprint.cppo.ml", line 2, characters 5-9:
# Error: Unbound module Caml



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build genprint 0.3
+- 
+- The following changes have been performed
| - install cppo                1.6.9
| - install ocaml-compiler-libs v0.12.4
| - install ppx_derivers        1.2.1
| - install ppxlib              0.31.0
| - install sexplib0            v0.16.0
| - install stdlib-shims        0.3.0
+- 
# Run eval $(opam env) to update the current shell environment

The former state can be restored with:
    /usr/bin/opam switch import "/home/opam/.opam/4.10/.opam-switch/backup/state-20240129191048.export"
'opam --cli=2.1 install genprint.0.3 stdlib-shims.0.3.0 sexplib0.v0.16.0 ppxlib.0.31.0 ppx_derivers.1.2.1 ocaml-compiler-libs.v0.12.4 dune.3.13.0 cppo.1.6.9 --verbose --yes --confirm-level=unsafe-yes' failed.