(for PR #29024)

2025-12-05 12:15.32: New job: build tyre.1.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29024/head (aee7d7afa7b1090746a130dc98918106fcc2f445)
                              on debian-13-ocaml-4.09/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29024/head" && git reset --hard aee7d7af
git fetch origin master
git merge --no-edit 3e41859015888fe8240e84dfc5f31bfa12a557e8
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.09@sha256:8541b4ae4ed2c9c176e85abb99184b93736bbe1ee463c13a82462622588b6752
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn tyre.1.0 1.0
RUN opam reinstall tyre.1.0; \
    res=$?; \
    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 "$pkg" != 'tyre.1.0' && partial_fails="$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 .

2025-12-05 12:15.32: Using cache hint "ocaml/opam:debian-13-ocaml-4.09@sha256:8541b4ae4ed2c9c176e85abb99184b93736bbe1ee463c13a82462622588b6752-tyre.1.0-aee7d7afa7b1090746a130dc98918106fcc2f445"
2025-12-05 12:15.32: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.09@sha256:8541b4ae4ed2c9c176e85abb99184b93736bbe1ee463c13a82462622588b6752)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-dev /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 tyre.1.0 1.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall tyre.1.0;\
             \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 \"$pkg\" != 'tyre.1.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-12-05 12:15.32: Waiting for resource in pool OCluster
2025-12-05 12:15.33: Waiting for worker…
2025-12-05 12:15.33: Got resource from pool OCluster
Building on bremusa.ocamllabs.io
HEAD is now at 2688fe6d88 Merge commit '547bbce588bc6d9231ad2bd9c8b2b3930b2d061a'
HEAD is now at 3e41859015 Merge pull request #28903 from jim-portegies/opam-publish-coq-waterproof.3.1.0-9.1
Updating 3e41859015..aee7d7afa7
Fast-forward
 packages/tyre/tyre.1.0/opam | 50 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 packages/tyre/tyre.1.0/opam

(from ocaml/opam:debian-13-ocaml-4.09@sha256:8541b4ae4ed2c9c176e85abb99184b93736bbe1ee463c13a82462622588b6752)
2025-12-05 12:15.53 ---> saved as "f7a13bc9fdad7afb85172be53ccdbec9841d2e998f0d893aa5581618c757434a"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2025-12-05 12:15.53 ---> saved as "9272800d462588d82131652be477f614ac8f3eb5e09eedaa770f218e9fea2e2b"

/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 version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.2, 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
2025-12-05 12:16.20 ---> saved as "f16aa302357f4fcc5390d9bac8c8cb6533afe99bfff96d7bf97682d50a11a55d"

/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         2.5.0
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=13
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 71
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       4.09
# invariant            ["ocaml-base-compiler" {= "4.09.1"}]
# compiler-packages    ocaml-base-compiler.4.09.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.09/lib/ocaml/stublibs:/home/opam/.opam/4.09/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.09.1
2025-12-05 12:16.21 ---> saved as "d9065fa1df7ea3f97327a318e2cded31c7b65abf920a84633a508b22ae400f78"

/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/"))
2025-12-05 12:16.29 ---> saved as "88badee1a1c819a4b82fdb6bc41d0e927a9127a48ce02cbd3526cc5d11742f0c"

/home/opam: (copy (src .) (dst opam-repository/))
2025-12-05 12:16.43 ---> saved as "caa3d843a2eb4e4efbb22a1dd4126c62859b702a7255d80418c239eaf80fa5f5"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-12-05 12:17.02 ---> saved as "ee8c72fd13c3187ea1d2c78adf475ea35fc80f7c1ce859cfbd6cf387b167ceba"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Hit:1 http://deb.debian.org/debian trixie InRelease
- 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-security trixie-security/main amd64 Packages [81.6 kB]
- Fetched 172 kB in 0s (1172 kB/s)
- Reading package lists...
2025-12-05 12:17.03 ---> saved as "bbff6efdc6fa3f1a8fcaed76a0104b7e82e261227dd488efda08cd5efe6aa268"

/home/opam: (run (shell "opam pin add -k version -yn tyre.1.0 1.0"))
tyre is now pinned to version 1.0
2025-12-05 12:17.04 ---> saved as "6fef7ecb0e6f58a163b4b69eaa299c64f0cbad66702e2392bb54dedecfb8deef"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall tyre.1.0;\
                        \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 \"$pkg\" != 'tyre.1.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
tyre.1.0 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 4 packages
  - install dune 3.20.2       [required by tyre]
  - install re   1.11.0       [required by tyre]
  - install seq  base         [required by tyre]
  - install tyre 1.0 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved dune.3.20.2  (cached)
-> retrieved re.1.11.0  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved tyre.1.0  (https://github.com/Drup/tyre/archive/refs/tags/1.0.tar.gz)
-> installed dune.3.20.2
-> installed re.1.11.0
[ERROR] The compilation of tyre.1.0 failed at "dune build -p tyre -j 71".

#=== ERROR while compiling tyre.1.0 ===========================================#
# context              2.5.0 | linux/x86_64 | ocaml-base-compiler.4.09.1 | pinned(https://github.com/Drup/tyre/archive/refs/tags/1.0.tar.gz)
# path                 ~/.opam/4.09/.opam-switch/build/tyre.1.0
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p tyre -j 71
# exit-code            1
# env-file             ~/.opam/log/tyre-7-a83a4b.env
# output-file          ~/.opam/log/tyre-7-a83a4b.out
### output ###
# (cd _build/default && /home/opam/.opam/4.09/bin/ocamlc.opt -w -40 -g -bin-annot -I src/.tyre.objs/byte -I /home/opam/.opam/4.09/lib/re -I /home/opam/.opam/4.09/lib/seq -no-alias-deps -o src/.tyre.objs/byte/tyre.cmi -c -intf src/tyre.mli)
# File "src/tyre.mli", line 124, characters 55-63:
# 124 | val either : ('e, 'a) t -> ('e, 'b) t -> ('e, ('a, 'b) Either.t) t
#                                                              ^^^^^^^^
# Error: Unbound module Either



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build tyre 1.0
+- 
+- The following changes have been performed
| - install dune 3.20.2
| - install re   1.11.0
| - install seq  base
+- 
# To update the current shell environment, run: eval $(opam env)

The former state can be restored with:
    /usr/bin/opam switch import "/home/opam/.opam/4.09/.opam-switch/backup/state-20251205121705.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 tyre.1.0;
        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 "$pkg" != 'tyre.1.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 1
2025-12-05 12:17.37: Job failed: Failed: Build failed
2025-12-05 12:17.37: Log analysis:
2025-12-05 12:17.37: >>> 
[ERROR] The compilation of tyre.1.0 failed at "dune build -p tyre -j 71".
 (score = 20)
2025-12-05 12:17.37: >>> 
# Error: Unbound module Either
 (score = 48)
2025-12-05 12:17.37: Unbound module Either