(for PR #29256)

2026-01-23 16:16.55: New job: build shibboleth.0.0.4, using opam 2.1
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29256/head (3652117e3393ac5602dfd8abde5eca1a433a6bcc)
                              on debian-13-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29256/head" && git reset --hard 3652117e
git fetch origin master
git merge --no-edit 5fc0b37a0e64821265c4791ca77b377e15250019
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.14@sha256:423b7147c04b7e40a2168c2d5b3c2e77064aa5b144995d90eb305e6eb6874610
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn shibboleth.0.0.4 0.0.4
RUN opam reinstall shibboleth.0.0.4; \
    res=$?; \
    test "$res" != 31 && exit "$res"; \
    export OPAMCLI=2.0; \
    build_dir=$(opam var prefix)/.opam-switch/build; \
    failed=$(ls "$build_dir"); \
    partial_fails=""; \
    for pkg in $failed; do \
    if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'shibboleth.0.0.4' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1

END-OF-DOCKERFILE
docker build -f ../Dockerfile .

2026-01-23 16:16.55: Using cache hint "ocaml/opam:debian-13-ocaml-4.14@sha256:423b7147c04b7e40a2168c2d5b3c2e77064aa5b144995d90eb305e6eb6874610-shibboleth.0.0.4-3652117e3393ac5602dfd8abde5eca1a433a6bcc"
2026-01-23 16:16.55: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.14@sha256:423b7147c04b7e40a2168c2d5b3c2e77064aa5b144995d90eb305e6eb6874610)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam"))
 (run (network host)
      (shell "opam init --reinit --config .opamrc-sandbox -ni"))
 (run (shell "opam option solver=builtin-0install && opam config report"))
 (env OPAMDOWNLOADJOBS 1)
 (env OPAMERRLOGLEN 0)
 (env OPAMPRECISETRACKING 1)
 (env CI true)
 (env OPAM_REPO_CI true)
 (run (shell "rm -rf opam-repository/"))
 (copy (src .) (dst opam-repository/))
 (run (shell "opam repository set-url --strict default opam-repository/"))
 (run (network host)
      (shell "opam update --depexts || true"))
 (run (shell "opam pin add -k version -yn shibboleth.0.0.4 0.0.4"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall shibboleth.0.0.4;\
             \n        res=$?;\
             \n        test \"$res\" != 31 && exit \"$res\";\
             \n        export OPAMCLI=2.0;\
             \n        build_dir=$(opam var prefix)/.opam-switch/build;\
             \n        failed=$(ls \"$build_dir\");\
             \n        partial_fails=\"\";\
             \n        for pkg in $failed; do\
             \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'shibboleth.0.0.4' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-01-23 16:16.55: Waiting for resource in pool OCluster
2026-01-23 16:23.22: Waiting for worker…
2026-01-23 16:27.28: Got resource from pool OCluster
Building on toxis.caelum.ci.dev
All commits already cached
Updating files:  95% (18423/19265)
Updating files:  96% (18495/19265)
Updating files:  97% (18688/19265)
Updating files:  98% (18880/19265)
Updating files:  99% (19073/19265)
Updating files: 100% (19265/19265)
Updating files: 100% (19265/19265), done.
HEAD is now at 5fc0b37a0e Merge pull request #29262 from fantazio/opam-publish-dead_code_analyzer.1.1.0
Merge made by the 'ort' strategy.
 packages/shibboleth/shibboleth.0.0.4/opam | 51 +++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 packages/shibboleth/shibboleth.0.0.4/opam

(from ocaml/opam:debian-13-ocaml-4.14@sha256:423b7147c04b7e40a2168c2d5b3c2e77064aa5b144995d90eb305e6eb6874610)
2026-01-23 16:27.31 ---> using "af1ebcbd2c0e8a2a9bd41972ff6b1f2b27bf9dd52d9b45e003eb0eaad274be03" from cache

/: (user (uid 1000) (gid 1000))

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam"))
2026-01-23 16:27.31 ---> using "45f9da0a02aa40d5877bda59ce97bd1a87b541a1f7d3e197e9146adada16323e" from cache

/home/opam: (run (network host)
                 (shell "opam init --reinit --config .opamrc-sandbox -ni"))
Configuring from /home/opam/.opamrc-sandbox, then /home/opam/.opamrc, and finally from built-in defaults.
Checking for available remotes: rsync and local, git.
  - you won't be able to use mercurial repositories unless you install the hg command on your system.
  - you won't be able to use darcs repositories unless you install the darcs command on your system.

This development version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.1, which can't be reverted.
You may want to back it up before going further.

Continue? [Y/n] y
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-01-23 16:27.31 ---> using "0a612d02125d6695da30cdd6c6802e6ea924eb06e798a8df1d90b069799a9d56" from cache

/home/opam: (run (shell "opam option solver=builtin-0install && opam config report"))
Set to 'builtin-0install' the field solver in global configuration
# opam config report
# opam-version         2.1.6 (263921263e1f745613e2882745114b7b08f3608b) 
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=13
# solver               builtin-0install
# install-criteria     
# upgrade-criteria     
# jobs                 71
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       4.14
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.14/lib/ocaml/stublibs:/home/opam/.opam/4.14/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.14.2
2026-01-23 16:27.31 ---> using "ffe7a6bce1e69ebdf445f8ab1938e33cd17183a25e858b641383e6f185a1e5ba" from cache

/home/opam: (env OPAMDOWNLOADJOBS 1)

/home/opam: (env OPAMERRLOGLEN 0)

/home/opam: (env OPAMPRECISETRACKING 1)

/home/opam: (env CI true)

/home/opam: (env OPAM_REPO_CI true)

/home/opam: (run (shell "rm -rf opam-repository/"))
2026-01-23 16:27.31 ---> using "3caa45c937d9eedf8616bab73032573510cd474c300b8f8ce274e72e8ff1f705" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-23 16:27.46 ---> saved as "644c58bab9328c644ad5ed5ee0f887ed2665736bea4eaca5a2284d892ae7b57d"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-23 16:28.02 ---> saved as "dd26797d37af40ac3b6179e8b0efaf8f9196e8a5aa49673460f30be7cf61fdf6"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian trixie InRelease [140 kB]
- Get:2 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB]
- Get:3 http://deb.debian.org/debian-security trixie-security InRelease [43.4 kB]
- Get:4 http://deb.debian.org/debian trixie/main amd64 Packages [9670 kB]
- Get:5 http://deb.debian.org/debian-security trixie-security/main amd64 Packages [97.9 kB]
- Fetched 9999 kB in 2s (5841 kB/s)
- Reading package lists...
- 
2026-01-23 16:28.05 ---> saved as "f7c7dc2f76e0f316d974ef0b9292344fb324da07147ffd5c1b331c9bd9b322e4"

/home/opam: (run (shell "opam pin add -k version -yn shibboleth.0.0.4 0.0.4"))
shibboleth is now pinned to version 0.0.4
2026-01-23 16:28.06 ---> saved as "4ee973ad633f5f6aa6b2e5e912eb24f50c0f32233e7c426232b3764b211e8cbf"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall shibboleth.0.0.4;\
                        \n        res=$?;\
                        \n        test \"$res\" != 31 && exit \"$res\";\
                        \n        export OPAMCLI=2.0;\
                        \n        build_dir=$(opam var prefix)/.opam-switch/build;\
                        \n        failed=$(ls \"$build_dir\");\
                        \n        partial_fails=\"\";\
                        \n        for pkg in $failed; do\
                        \n          if opam show -f x-ci-accept-failures: \"$pkg\" | grep -qF \"\\\"debian-13\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'shibboleth.0.0.4' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
shibboleth.0.0.4 is not installed. Install it? [Y/n] y
The following actions will be performed:
  - install ocamlbuild          0.16.1   [required by fmt]
  - install cmdliner            2.1.0    [required by shibboleth]
  - install dune                3.21.0   [required by shibboleth]
  - install ocamlfind           1.9.8    [required by fmt, ppx_deriving]
  - install stdlib-shims        0.3.0    [required by ppxlib]
  - install sexplib0            v0.16.0  [required by ppxlib]
  - install re                  1.14.0   [required by shibboleth]
  - install ppx_derivers        1.2.1    [required by ppx_deriving]
  - install ocplib_stuff        0.4.0    [required by ez_file]
  - install ocaml-version       4.0.3    [required by ocamlformat-lib]
  - install ocaml-compiler-libs v0.12.4  [required by ppxlib]
  - install menhirSdk           20250912 [required by menhir]
  - install menhirLib           20250912 [required by menhir]
  - install menhirCST           20250912 [required by menhir]
  - install fix                 20250919 [required by ocamlformat-lib]
  - install either              1.0.0    [required by ocamlformat-lib]
  - install dune-build-info     3.21.0   [required by ocamlformat-lib]
  - install csexp               1.5.2    [required by ocamlformat]
  - install cppo                1.8.0    [required by ppx_deriving]
  - install camlp-streams       5.0.1    [required by ocamlformat-lib]
  - install topkg               1.1.1    [required by fmt]
  - install ocp-indent          1.9.0    [required by ocamlformat-lib]
  - install ez_file             0.3.0    [required by shibboleth]
  - install ppxlib              0.37.0   [required by shibboleth]
  - install menhir              20250912 [required by shibboleth]
  - install dune-configurator   3.21.0   [required by base]
  - install uutf                1.0.4    [required by ocamlformat-lib]
  - install uucp                17.0.0   [required by uuseg]
  - install fmt                 0.11.0   [required by shibboleth]
  - install astring             0.8.5    [required by ocamlformat-lib]
  - install ppx_import          1.12.0   [required by shibboleth]
  - install ppx_deriving        6.1.1    [required by shibboleth]
  - install base                v0.16.4  [required by ocamlformat-lib]
  - install uuseg               17.0.0   [required by ocamlformat-lib]
  - install fpath               0.7.3    [required by ocamlformat-lib]
  - install stdio               v0.16.0  [required by ocamlformat-lib]
  - install ocamlformat-lib     0.28.1   [required by ocamlformat]
  - install ocamlformat         0.28.1   [required by shibboleth]
  - install shibboleth          0.0.4*
===== 39 to install =====

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved astring.0.8.5  (cached)
-> retrieved base.v0.16.4  (cached)
-> retrieved camlp-streams.5.0.1  (cached)
-> retrieved cmdliner.2.1.0  (cached)
-> retrieved cppo.1.8.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved dune.3.21.0  (cached)
-> retrieved dune-build-info.3.21.0  (cached)
-> retrieved dune-configurator.3.21.0  (cached)
-> retrieved either.1.0.0  (cached)
-> retrieved ez_file.0.3.0  (cached)
-> retrieved fix.20250919  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved fpath.0.7.3  (cached)
-> installed cmdliner.2.1.0
-> retrieved menhir.20250912  (cached)
-> retrieved menhirCST.20250912  (cached)
-> retrieved menhirLib.20250912  (cached)
-> retrieved menhirSdk.20250912  (cached)
-> retrieved ocaml-compiler-libs.v0.12.4  (cached)
-> retrieved ocaml-version.4.0.3  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ocamlformat.0.28.1  (cached)
-> retrieved ocamlformat-lib.0.28.1  (cached)
-> retrieved ocp-indent.1.9.0  (cached)
-> retrieved ocplib_stuff.0.4.0  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ppx_deriving.6.1.1  (cached)
-> retrieved ppx_import.1.12.0  (cached)
-> retrieved ppxlib.0.37.0  (cached)
-> retrieved re.1.14.0  (cached)
-> retrieved sexplib0.v0.16.0  (cached)
-> retrieved shibboleth.0.0.4  (cached)
-> retrieved stdio.v0.16.0  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> retrieved topkg.1.1.1  (cached)
-> retrieved uucp.17.0.0  (cached)
-> retrieved uuseg.17.0.0  (cached)
-> retrieved uutf.1.0.4  (cached)
-> installed ocamlfind.1.9.8
-> installed ocamlbuild.0.16.1
-> installed topkg.1.1.1
-> installed uutf.1.0.4
-> installed fmt.0.11.0
-> installed astring.0.8.5
-> installed fpath.0.7.3
-> installed dune.3.21.0
-> installed camlp-streams.5.0.1
-> installed csexp.1.5.2
-> installed either.1.0.0
-> installed fix.20250919
-> installed menhirCST.20250912
-> installed menhirSdk.20250912
-> installed cppo.1.8.0
-> installed ocaml-version.4.0.3
-> installed ppx_derivers.1.2.1
-> installed sexplib0.v0.16.0
-> installed stdlib-shims.0.3.0
-> installed menhirLib.20250912
-> installed ocaml-compiler-libs.v0.12.4
-> installed ocplib_stuff.0.4.0
-> installed re.1.14.0
-> installed ocp-indent.1.9.0
-> installed dune-build-info.3.21.0
-> installed ez_file.0.3.0
-> installed dune-configurator.3.21.0
-> installed base.v0.16.4
-> installed stdio.v0.16.0
-> installed menhir.20250912
-> installed ppxlib.0.37.0
-> installed ppx_import.1.12.0
-> installed ppx_deriving.6.1.1
-> installed uucp.17.0.0
-> installed uuseg.17.0.0
-> installed ocamlformat-lib.0.28.1
-> installed ocamlformat.0.28.1
[ERROR] The compilation of shibboleth.0.0.4 failed at "dune build -p shibboleth -j 71 @install".

#=== ERROR while compiling shibboleth.0.0.4 ===================================#
# context              2.1.6 | linux/x86_64 | ocaml-base-compiler.4.14.2 | pinned(https://github.com/wizard7377/sml-ocaml-converter/archive/refs/tags/v0.0.1.tar.gz)
# path                 ~/.opam/4.14/.opam-switch/build/shibboleth.0.0.4
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p shibboleth -j 71 @install
# exit-code            1
# env-file             ~/.opam/log/shibboleth-7-736316.env
# output-file          ~/.opam/log/shibboleth-7-736316.out
### output ###
# (cd _build/.sandbox/a56eb45da2b4aa0d09165164411a9c0a/default && /home/opam/.opam/4.14/bin/menhir --table --dump lib/source/frontend/parser.mly --base lib/source/frontend/parser --infer-write-query lib/source/frontend/parser__mock.ml.mock)
# File "lib/source/frontend/parser.mly", line 797, characters 0-12:
# Warning: symbol corespec_seq is unreachable from any of the start symbol(s).
# File "lib/source/frontend/parser.mly", line 545, characters 0-13:
# Warning: symbol kwcoredec_seq is unreachable from any of the start symbol(s).
# File "lib/source/frontend/parser.mly", line 539, characters 0-9:
# Warning: symbol kwdec_seq is unreachable from any of the start symbol(s).
# File "lib/source/frontend/parser.mly", line 791, characters 0-8:
# Warning: symbol spec_seq is unreachable from any of the start symbol(s).
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlc.opt -w -40 -g -bin-annot -I lib/source/context/.context.objs/byte -I /home/opam/.opam/4.14/lib/ez_file -I /home/opam/.opam/4.14/lib/ocplib_stuff -I /home/opam/.opam/4.14/lib/ppx_deriving -I /home/opam/.opam/4.14/lib/ppx_deriving/runtime -I /home/opam/.opam/4.14/lib/re -I lib/common/.common.objs/byte -I lib/source/ast/.ast.objs/byte -intf-suffix .ml -no-alias-deps -open Context__ -o lib/source/context/.context.objs/byte/context__Get_context.cmo -c -impl lib/source/context/get_context.pp.ml)
# File "lib/source/context/get_context.ml", line 33, characters 8-14:
# 33 |       | Some _ -> Some 1
#              ^^^^^^
# Warning 11 [redundant-case]: this match case is unused.
# File "lib/source/context/get_context.ml", line 39, characters 8-12:
# 39 |     let rest = match rest_opt with
#              ^^^^
# Warning 26 [unused-var]: unused variable rest.
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlc.opt -w -40 -g -bin-annot -I lib/source/backend/.backend.objs/byte -I /home/opam/.opam/4.14/lib/ez_file -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/common -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/shadow -I /home/opam/.opam/4.14/lib/ocaml/compiler-libs -I /home/opam/.opam/4.14/lib/ocplib_stuff -I /home/opam/.opam/4.14/lib/ppx_derivers -I /home/opam/.opam/4.14/lib/ppx_deriving -I /home/opam/.opam/4.14/lib/ppx_deriving/runtime -I /home/opam/.opam/4.14/lib/ppxlib -I /home/opam/.opam/4.14/lib/ppxlib/ast -I /home/opam/.opam/4.14/lib/ppxlib/astlib -I /home/opam/.opam/4.14/lib/ppxlib/print_diff -I /home/opam/.opam/4.14/lib/ppxlib/stdppx -I /home/opam/.opam/4.14/lib/ppxlib/traverse_builtins -I /home/opam/.opam/4.14/lib/re -I /home/opam/.opam/4.14/lib/sexplib0 -I /home/opam/.opam/4.14/lib/stdlib-shims -I lib/common/.common.objs/byte -I lib/helpers/.helpers.objs/byte -I lib/source/ast/.ast.objs/byte -I lib/source/context/.context.objs/byte -intf-suffix .ml -no-alias-deps -open Backend__ -o lib/source/backend/.backend.objs/byte/backend__Process_names.cmo -c -impl lib/source/backend/process_names.pp.ml)
# File "lib/source/backend/process_names.ml", line 41, characters 19-41:
# 41 |     assert (not @@ String.starts_with "(" @@ List.nth name 0);
#                         ^^^^^^^^^^^^^^^^^^^^^^
# Warning 6 [labels-omitted]: label prefix was omitted in the application of this function.
# File "lib/source/backend/process_names.ml", line 42, characters 19-39:
# 42 |     assert (not @@ String.ends_with ")" @@ List.nth name (List.length name - 1));
#                         ^^^^^^^^^^^^^^^^^^^^
# Warning 6 [labels-omitted]: label suffix was omitted in the application of this function.
# File "lib/source/backend/process_names.ml", line 39, characters 24-45:
# 39 |   method process_name ?(ctx : context = Empty) ~(name : string list) =
#                              ^^^^^^^^^^^^^^^^^^^^^
# Warning 16 [unerasable-optional-argument]: this optional argument cannot be erased.
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlc.opt -w -40 -g -bin-annot -I lib/source/backend/.backend.objs/byte -I /home/opam/.opam/4.14/lib/ez_file -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/common -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/shadow -I /home/opam/.opam/4.14/lib/ocaml/compiler-libs -I /home/opam/.opam/4.14/lib/ocplib_stuff -I /home/opam/.opam/4.14/lib/ppx_derivers -I /home/opam/.opam/4.14/lib/ppx_deriving -I /home/opam/.opam/4.14/lib/ppx_deriving/runtime -I /home/opam/.opam/4.14/lib/ppxlib -I /home/opam/.opam/4.14/lib/ppxlib/ast -I /home/opam/.opam/4.14/lib/ppxlib/astlib -I /home/opam/.opam/4.14/lib/ppxlib/print_diff -I /home/opam/.opam/4.14/lib/ppxlib/stdppx -I /home/opam/.opam/4.14/lib/ppxlib/traverse_builtins -I /home/opam/.opam/4.14/lib/re -I /home/opam/.opam/4.14/lib/sexplib0 -I /home/opam/.opam/4.14/lib/stdlib-shims -I lib/common/.common.objs/byte -I lib/helpers/.helpers.objs/byte -I lib/source/ast/.ast.objs/byte -I lib/source/context/.context.objs/byte -intf-suffix .ml -no-alias-deps -open Backend__ -o lib/source/backend/.backend.objs/byte/backend.cmo -c -impl lib/source/backend/backend.pp.ml)
# File "lib/source/backend/backend.ml", line 54, characters 96-119:
# 54 |   let attr_specification : Parsetree.structure_item = Builder.pstr_eval (Builder.pexp_constant (Parsetree.Pconst_string (s,Location.none,None (* FIXME ?*) ) )) [] in
#                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^
# Error: The constructor Parsetree.Pconst_string belongs to the variant type
#          Parsetree.constant
#        but a constructor was expected belonging to the variant type
#          Ppxlib__.Import.constant = Astlib.Ast_502.Parsetree.constant
# (cd _build/.sandbox/3e9cae66da7411e288eb9fe7b6b25111/default && /home/opam/.opam/4.14/bin/menhir --table --dump --explain lib/source/frontend/parser.mly --base lib/source/frontend/parser --infer-read-reply lib/source/frontend/parser__mock.mli.inferred)
# File "lib/source/frontend/parser.mly", line 116, characters 0-6:
# Warning: the precedence level assigned to AND is never useful.
# File "lib/source/frontend/parser.mly", line 126, characters 0-6:
# Warning: the precedence level assigned to ARROW is never useful.
# File "lib/source/frontend/parser.mly", line 129, characters 0-5:
# Warning: the precedence level assigned to COLON_GT is never useful.
# File "lib/source/frontend/parser.mly", line 127, characters 0-9:
# Warning: the precedence level assigned to EQUAL is never useful.
# Warning: 19 states have shift/reduce conflicts.
# Warning: 2 states have reduce/reduce conflicts.
# Warning: 98 shift/reduce conflicts were arbitrarily resolved.
# Warning: 3 reduce/reduce conflicts were arbitrarily resolved.
# File "lib/source/frontend/parser.mly", line 960, characters 2-12:
# Warning: production program_list -> program is never reduced.
# Warning: in total, 1 production is never reduced.
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlc.opt -w -40 -g -bin-annot -I lib/process/.process.objs/byte -I /home/opam/.opam/4.14/lib/ez_file -I /home/opam/.opam/4.14/lib/menhirLib -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/common -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/shadow -I /home/opam/.opam/4.14/lib/ocaml/compiler-libs -I /home/opam/.opam/4.14/lib/ocplib_stuff -I /home/opam/.opam/4.14/lib/ppx_derivers -I /home/opam/.opam/4.14/lib/ppx_deriving -I /home/opam/.opam/4.14/lib/ppx_deriving/runtime -I /home/opam/.opam/4.14/lib/ppxlib -I /home/opam/.opam/4.14/lib/ppxlib/ast -I /home/opam/.opam/4.14/lib/ppxlib/astlib -I /home/opam/.opam/4.14/lib/ppxlib/print_diff -I /home/opam/.opam/4.14/lib/ppxlib/stdppx -I /home/opam/.opam/4.14/lib/ppxlib/traverse_builtins -I /home/opam/.opam/4.14/lib/re -I /home/opam/.opam/4.14/lib/sexplib0 -I /home/opam/.opam/4.14/lib/stdlib-shims -I lib/common/.common.objs/byte -I lib/helpers/.helpers.objs/byte -I lib/source/ast/.ast.objs/byte -I lib/source/backend/.backend.objs/byte -I lib/source/context/.context.objs/byte -I lib/source/frontend/.frontend.objs/byte -intf-suffix .ml -no-alias-deps -open Process__ -o lib/process/.process.objs/byte/process__Process_file.cmo -c -impl lib/process/process_file.ml)
# File "lib/process/process_file.ml", line 35, characters 50-60:
# 35 |       List.iter (Astlib.Pprintast.top_phrase fmt) ocaml_code ;
#                                                        ^^^^^^^^^^
# Error: This expression has type ocaml_code = Parsetree.toplevel_phrase list
#        but an expression was expected of type
#          Astlib__.Ast_502.Parsetree.toplevel_phrase list
#        Type Parsetree.toplevel_phrase is not compatible with type
#          Astlib__.Ast_502.Parsetree.toplevel_phrase =
#            Astlib.Ast_502.Parsetree.toplevel_phrase 
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlc.opt -w -40 -g -ppx '.ppx/089e7551ad08415df9c73ab565953db1/ppx.exe --as-ppx --cookie '\''library-name="cli"'\''' -bin-annot -I lib/cli/.cli.objs/byte -I /home/opam/.opam/4.14/lib/cmdliner -I /home/opam/.opam/4.14/lib/ez_file -I /home/opam/.opam/4.14/lib/menhirLib -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/common -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/shadow -I /home/opam/.opam/4.14/lib/ocaml/compiler-libs -I /home/opam/.opam/4.14/lib/ocplib_stuff -I /home/opam/.opam/4.14/lib/ppx_derivers -I /home/opam/.opam/4.14/lib/ppx_deriving -I /home/opam/.opam/4.14/lib/ppx_deriving/runtime -I /home/opam/.opam/4.14/lib/ppx_import -I /home/opam/.opam/4.14/lib/ppxlib -I /home/opam/.opam/4.14/lib/ppxlib/ast -I /home/opam/.opam/4.14/lib/ppxlib/astlib -I /home/opam/.opam/4.14/lib/ppxlib/print_diff -I /home/opam/.opam/4.14/lib/ppxlib/stdppx -I /home/opam/.opam/4.14/lib/ppxlib/traverse_builtins -I /home/opam/.opam/4.14/lib/re -I /home/opam/.opam/4.14/lib/sexplib0 -I /home/opam/.opam/4.14/lib/stdlib-shims -I lib/.shibboleth.objs/byte -I lib/common/.common.objs/byte -I lib/helpers/.helpers.objs/byte -I lib/process/.process.objs/byte -I lib/source/ast/.ast.objs/byte -I lib/source/backend/.backend.objs/byte -I lib/source/context/.context.objs/byte -I lib/source/frontend/.frontend.objs/byte -intf-suffix .ml -no-alias-deps -open Cli__ -o lib/cli/.cli.objs/byte/cli__Cmd_common_options.cmo -c -impl lib/cli/cmd_common_options.ml)
# File "lib/cli/cmd_common_options.ml", line 24, characters 6-23:
# 24 |   let process_names_doc : Arg.info = Arg.info ["process-names"] ~doc:"Conversion options for names" in
#            ^^^^^^^^^^^^^^^^^
# Warning 26 [unused-var]: unused variable process_names_doc.
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlc.opt -w -40 -g -ppx '.ppx/089e7551ad08415df9c73ab565953db1/ppx.exe --as-ppx --cookie '\''library-name="cli"'\''' -bin-annot -I lib/cli/.cli.objs/byte -I /home/opam/.opam/4.14/lib/cmdliner -I /home/opam/.opam/4.14/lib/ez_file -I /home/opam/.opam/4.14/lib/menhirLib -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/common -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/shadow -I /home/opam/.opam/4.14/lib/ocaml/compiler-libs -I /home/opam/.opam/4.14/lib/ocplib_stuff -I /home/opam/.opam/4.14/lib/ppx_derivers -I /home/opam/.opam/4.14/lib/ppx_deriving -I /home/opam/.opam/4.14/lib/ppx_deriving/runtime -I /home/opam/.opam/4.14/lib/ppx_import -I /home/opam/.opam/4.14/lib/ppxlib -I /home/opam/.opam/4.14/lib/ppxlib/ast -I /home/opam/.opam/4.14/lib/ppxlib/astlib -I /home/opam/.opam/4.14/lib/ppxlib/print_diff -I /home/opam/.opam/4.14/lib/ppxlib/stdppx -I /home/opam/.opam/4.14/lib/ppxlib/traverse_builtins -I /home/opam/.opam/4.14/lib/re -I /home/opam/.opam/4.14/lib/sexplib0 -I /home/opam/.opam/4.14/lib/stdlib-shims -I lib/.shibboleth.objs/byte -I lib/common/.common.objs/byte -I lib/helpers/.helpers.objs/byte -I lib/process/.process.objs/byte -I lib/source/ast/.ast.objs/byte -I lib/source/backend/.backend.objs/byte -I lib/source/context/.context.objs/byte -I lib/source/frontend/.frontend.objs/byte -intf-suffix .ml -no-alias-deps -open Cli__ -o lib/cli/.cli.objs/byte/cli__Cmd_convert_file.cmo -c -impl lib/cli/cmd_convert_file.ml)
# File "lib/cli/cmd_convert_file.ml", line 6, characters 46-57:
# 6 | let convert_file ~(input_files:string list) ?(output_file:string option) ~(common_options:common_options) : int =  
#                                                   ^^^^^^^^^^^
# Warning 16 [unerasable-optional-argument]: this optional argument cannot be erased.
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlopt.opt -w -40 -g -I lib/source/context/.context.objs/byte -I lib/source/context/.context.objs/native -I /home/opam/.opam/4.14/lib/ez_file -I /home/opam/.opam/4.14/lib/ocplib_stuff -I /home/opam/.opam/4.14/lib/ppx_deriving -I /home/opam/.opam/4.14/lib/ppx_deriving/runtime -I /home/opam/.opam/4.14/lib/re -I lib/common/.common.objs/byte -I lib/common/.common.objs/native -I lib/source/ast/.ast.objs/byte -I lib/source/ast/.ast.objs/native -intf-suffix .ml -no-alias-deps -open Context__ -o lib/source/context/.context.objs/native/context__Get_context.cmx -c -impl lib/source/context/get_context.pp.ml)
# File "lib/source/context/get_context.ml", line 33, characters 8-14:
# 33 |       | Some _ -> Some 1
#              ^^^^^^
# Warning 11 [redundant-case]: this match case is unused.
# File "lib/source/context/get_context.ml", line 39, characters 8-12:
# 39 |     let rest = match rest_opt with
#              ^^^^
# Warning 26 [unused-var]: unused variable rest.
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlopt.opt -w -40 -g -I lib/source/backend/.backend.objs/byte -I lib/source/backend/.backend.objs/native -I /home/opam/.opam/4.14/lib/ez_file -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/common -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/shadow -I /home/opam/.opam/4.14/lib/ocaml/compiler-libs -I /home/opam/.opam/4.14/lib/ocplib_stuff -I /home/opam/.opam/4.14/lib/ppx_derivers -I /home/opam/.opam/4.14/lib/ppx_deriving -I /home/opam/.opam/4.14/lib/ppx_deriving/runtime -I /home/opam/.opam/4.14/lib/ppxlib -I /home/opam/.opam/4.14/lib/ppxlib/ast -I /home/opam/.opam/4.14/lib/ppxlib/astlib -I /home/opam/.opam/4.14/lib/ppxlib/print_diff -I /home/opam/.opam/4.14/lib/ppxlib/stdppx -I /home/opam/.opam/4.14/lib/ppxlib/traverse_builtins -I /home/opam/.opam/4.14/lib/re -I /home/opam/.opam/4.14/lib/sexplib0 -I /home/opam/.opam/4.14/lib/stdlib-shims -I lib/common/.common.objs/byte -I lib/common/.common.objs/native -I lib/helpers/.helpers.objs/byte -I lib/helpers/.helpers.objs/native -I lib/source/ast/.ast.objs/byte -I lib/source/ast/.ast.objs/native -I lib/source/context/.context.objs/byte -I lib/source/context/.context.objs/native -intf-suffix .ml -no-alias-deps -open Backend__ -o lib/source/backend/.backend.objs/native/backend__Process_names.cmx -c -impl lib/source/backend/process_names.pp.ml)
# File "lib/source/backend/process_names.ml", line 41, characters 19-41:
# 41 |     assert (not @@ String.starts_with "(" @@ List.nth name 0);
#                         ^^^^^^^^^^^^^^^^^^^^^^
# Warning 6 [labels-omitted]: label prefix was omitted in the application of this function.
# File "lib/source/backend/process_names.ml", line 42, characters 19-39:
# 42 |     assert (not @@ String.ends_with ")" @@ List.nth name (List.length name - 1));
#                         ^^^^^^^^^^^^^^^^^^^^
# Warning 6 [labels-omitted]: label suffix was omitted in the application of this function.
# File "lib/source/backend/process_names.ml", line 39, characters 24-45:
# 39 |   method process_name ?(ctx : context = Empty) ~(name : string list) =
#                              ^^^^^^^^^^^^^^^^^^^^^
# Warning 16 [unerasable-optional-argument]: this optional argument cannot be erased.
# (cd _build/default && /home/opam/.opam/4.14/bin/ocamlopt.opt -w -40 -g -I lib/source/backend/.backend.objs/byte -I lib/source/backend/.backend.objs/native -I /home/opam/.opam/4.14/lib/ez_file -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/common -I /home/opam/.opam/4.14/lib/ocaml-compiler-libs/shadow -I /home/opam/.opam/4.14/lib/ocaml/compiler-libs -I /home/opam/.opam/4.14/lib/ocplib_stuff -I /home/opam/.opam/4.14/lib/ppx_derivers -I /home/opam/.opam/4.14/lib/ppx_deriving -I /home/opam/.opam/4.14/lib/ppx_deriving/runtime -I /home/opam/.opam/4.14/lib/ppxlib -I /home/opam/.opam/4.14/lib/ppxlib/ast -I /home/opam/.opam/4.14/lib/ppxlib/astlib -I /home/opam/.opam/4.14/lib/ppxlib/print_diff -I /home/opam/.opam/4.14/lib/ppxlib/stdppx -I /home/opam/.opam/4.14/lib/ppxlib/traverse_builtins -I /home/opam/.opam/4.14/lib/re -I /home/opam/.opam/4.14/lib/sexplib0 -I /home/opam/.opam/4.14/lib/stdlib-shims -I lib/common/.common.objs/byte -I lib/common/.common.objs/native -I lib/helpers/.helpers.objs/byte -I lib/helpers/.helpers.objs/native -I lib/source/ast/.ast.objs/byte -I lib/source/ast/.ast.objs/native -I lib/source/context/.context.objs/byte -I lib/source/context/.context.objs/native -intf-suffix .ml -no-alias-deps -open Backend__ -o lib/source/backend/.backend.objs/native/backend.cmx -c -impl lib/source/backend/backend.pp.ml)
# File "lib/source/backend/backend.ml", line 54, characters 96-119:
# 54 |   let attr_specification : Parsetree.structure_item = Builder.pstr_eval (Builder.pexp_constant (Parsetree.Pconst_string (s,Location.none,None (* FIXME ?*) ) )) [] in
#                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^
# Error: The constructor Parsetree.Pconst_string belongs to the variant type
#          Parsetree.constant
#        but a constructor was expected belonging to the variant type
#          Ppxlib__.Import.constant = Astlib.Ast_502.Parsetree.constant



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build shibboleth 0.0.4
+- 
+- The following changes have been performed
| - install astring             0.8.5
| - install base                v0.16.4
| - install camlp-streams       5.0.1
| - install cmdliner            2.1.0
| - install cppo                1.8.0
| - install csexp               1.5.2
| - install dune                3.21.0
| - install dune-build-info     3.21.0
| - install dune-configurator   3.21.0
| - install either              1.0.0
| - install ez_file             0.3.0
| - install fix                 20250919
| - install fmt                 0.11.0
| - install fpath               0.7.3
| - install menhir              20250912
| - install menhirCST           20250912
| - install menhirLib           20250912
| - install menhirSdk           20250912
| - install ocaml-compiler-libs v0.12.4
| - install ocaml-version       4.0.3
| - install ocamlbuild          0.16.1
| - install ocamlfind           1.9.8
| - install ocamlformat         0.28.1
| - install ocamlformat-lib     0.28.1
| - install ocp-indent          1.9.0
| - install ocplib_stuff        0.4.0
| - install ppx_derivers        1.2.1
| - install ppx_deriving        6.1.1
| - install ppx_import          1.12.0
| - install ppxlib              0.37.0
| - install re                  1.14.0
| - install sexplib0            v0.16.0
| - install stdio               v0.16.0
| - install stdlib-shims        0.3.0
| - install topkg               1.1.1
| - install uucp                17.0.0
| - install uuseg               17.0.0
| - install uutf                1.0.4
+- 

<><> ocp-indent.1.9.0 installed successfully ><><><><><><><><><><><><><><><><><>
=> This package requires additional configuration for use in editors. Install package 'user-setup', or manually:

   * for Emacs, add these lines to ~/.emacs:
     (add-to-list 'load-path "/home/opam/.opam/4.14/share/emacs/site-lisp")
     (require 'ocp-indent)

   * for Vim, add this line to ~/.vimrc:
     set rtp^="/home/opam/.opam/4.14/share/ocp-indent/vim"
# 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/4.14/.opam-switch/backup/state-20260123162807.export"
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
"/usr/bin/env" "bash" "-c" "opam reinstall shibboleth.0.0.4;
        res=$?;
        test "$res" != 31 && exit "$res";
        export OPAMCLI=2.0;
        build_dir=$(opam var prefix)/.opam-switch/build;
        failed=$(ls "$build_dir");
        partial_fails="";
        for pkg in $failed; do
          if opam show -f x-ci-accept-failures: "$pkg" | grep -qF "\"debian-13\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'shibboleth.0.0.4' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 1
2026-01-23 16:29.57: Job failed: Failed: Build failed
2026-01-23 16:29.57: Log analysis:
2026-01-23 16:29.57: >>> 
[ERROR] The compilation of shibboleth.0.0.4 failed at "dune build -p shibboleth -j 71 @install".
 (score = 20)
2026-01-23 16:29.57: >>> 
# Error: The constructor Parsetree.Pconst_string belongs to the variant type
 (score = 48)
2026-01-23 16:29.57: >>> 
# Error: This expression has type ocaml_code = Parsetree.toplevel_phrase list
 (score = 48)
2026-01-23 16:29.57: >>> 
# Error: The constructor Parsetree.Pconst_string belongs to the variant type
 (score = 48)
2026-01-23 16:29.57: The constructor Parsetree.Pconst_string belongs to the variant type