(for PR #29245)

2026-01-19 12:14.42: New job: build yultracer.0.2.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29245/head (1b8395389461403e61fb20db739d2d5ed7c48e55)
                              on debian-13-ocaml-4.14/arm32v7

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29245/head" && git reset --hard 1b839538
git fetch origin master
git merge --no-edit 39960ffbaf3e5b50a1e354d4c99bfecc01e358ca
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-4.14@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28
SHELL [ "/usr/bin/linux32", "/bin/sh", "-c" ]
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn yultracer.0.2.0 0.2.0
RUN opam reinstall yultracer.0.2.0; \
    res=$?; \
    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 "$pkg" != 'yultracer.0.2.0' && partial_fails="$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 .

2026-01-19 12:14.42: Using cache hint "ocaml/opam:debian-13-ocaml-4.14@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28-yultracer.0.2.0-1b8395389461403e61fb20db739d2d5ed7c48e55"
2026-01-19 12:14.42: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-4.14@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28)
 (shell /usr/bin/linux32 /bin/sh -c)
 (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 yultracer.0.2.0 0.2.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall yultracer.0.2.0;\
             \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 \"$pkg\" != 'yultracer.0.2.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-01-19 12:14.42: Waiting for resource in pool OCluster
2026-01-19 12:14.42: Waiting for worker…
2026-01-19 12:20.07: Got resource from pool OCluster
Building on ainia.caelum.ci.dev
All commits already cached
Updating files:  75% (14584/19229)
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Updating files: 100% (19229/19229), done.
HEAD is now at 39960ffbaf Merge pull request #29193 from recoules/release-binsec-0.11.0
Updating 39960ffbaf..1b83953894
Fast-forward
 packages/yultracer/yultracer.0.2.0/opam | 35 +++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 packages/yultracer/yultracer.0.2.0/opam

(from ocaml/opam:debian-13-ocaml-4.14@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28)
Unable to find image 'ocaml/opam:debian-13-ocaml-4.14@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28' locally
docker.io/ocaml/opam@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28: Pulling from ocaml/opam
11c42a85d7bc: Pulling fs layer
11c42a85d7bc: Verifying Checksum
11c42a85d7bc: Download complete
11c42a85d7bc: Pull complete
Digest: sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28
Status: Downloaded newer image for ocaml/opam@sha256:eb9388516aa9ee39c5d9d8b3aa5163725a8f704e7e746fe91b941299e6f6ce28
2026-01-19 12:20.09 ---> using "f93190b1bd3420d0691c4747bc4982474ba9fd2940d67a3c601dbb26b29112f1" from cache

/: (shell /usr/bin/linux32 /bin/sh -c)

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-01-19 12:20.09 ---> using "291361e95fb5d8c42b3334390f4fafc2b4a12039d6aeb6397587e696a53567cd" 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.

Continue? [Y/n] y
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.

Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2026-01-19 12:20.09 ---> using "eca8a9c1cae54ead1743b15a02d588ededa9bd283259ce4bbcbafb93143eb0a9" 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         2.5.0
# self-upgrade         no
# system               arch=arm32 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                 79
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       4.14
# invariant            ["ocaml-base-compiler" {= "4.14.2"}]
# compiler-packages    ocaml-base-compiler.4.14.2, ocaml-options-vanilla.1
# 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
2026-01-19 12:20.09 ---> using "60e7af4a8956c44788aee08560c1f61ed2a03f10870357f3557fb03eda90f869" 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/"))
2026-01-19 12:20.09 ---> using "ab689220024a8543bbd8248212fa5cf3a2ff19360077009bdc9d861035b4b59f" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-19 12:20.17 ---> saved as "d9f872f93511b55f6d6eb6cb0fc119fd8cd4624f37025d1bca7b4520fdfa6761"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-19 12:20.50 ---> saved as "ab70c913d787cfb630c1ff773a32328aba44cfdd404f5ae04f2834399c7bf8b1"

/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 armhf Packages [9238 kB]
- Get:5 http://deb.debian.org/debian-security trixie-security/main armhf Packages [90.3 kB]
- Fetched 9559 kB in 1s (6999 kB/s)
- Reading package lists...
- 
2026-01-19 12:20.53 ---> saved as "6bc46bfa84e703fdc8e2ac46ece3fe923c708eece7fee4e32a1df98a89f83cb8"

/home/opam: (run (shell "opam pin add -k version -yn yultracer.0.2.0 0.2.0"))
yultracer is now pinned to version 0.2.0
2026-01-19 12:20.53 ---> saved as "10d1d5b3e8d3bf0a8a6aae06d982ae46c8bf79957679fe3b6a09e4c1c6ce99af"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall yultracer.0.2.0;\
                        \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 \"$pkg\" != 'yultracer.0.2.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
yultracer.0.2.0 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 6 packages
  - install dune      3.21.0         [required by yultracer]
  - install menhir    20250912       [required by yultracer]
  - install menhirCST 20250912       [required by menhir]
  - install menhirLib 20250912       [required by menhir]
  - install menhirSdk 20250912       [required by menhir]
  - install yultracer 0.2.0 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved dune.3.21.0  (cached)
-> retrieved menhir.20250912, menhirCST.20250912, menhirLib.20250912, menhirSdk.20250912  (cached)
-> retrieved yultracer.0.2.0  (cached)
-> installed dune.3.21.0
-> installed menhirCST.20250912
-> installed menhirLib.20250912
-> installed menhirSdk.20250912
-> installed menhir.20250912
[ERROR] The compilation of yultracer.0.2.0 failed at "dune build -p yultracer -j 79".

#=== ERROR while compiling yultracer.0.2.0 ====================================#
# context              2.5.0 | linux/arm32 | ocaml-base-compiler.4.14.2 | pinned(https://github.com/LaifsV1/YulTracer/releases/download/v0.2.0/yultracer-v0.2.0-source-no-tests.tar.xz)
# path                 ~/.opam/4.14/.opam-switch/build/yultracer.0.2.0
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p yultracer -j 79
# exit-code            1
# env-file             ~/.opam/log/yultracer-8-d15ea5.env
# output-file          ~/.opam/log/yultracer-8-d15ea5.out
### output ###
# File "lib/abi_parser/dune", line 3, characters 12-18:
# 3 |  (libraries yojson str)
#                 ^^^^^^
# Error: Library "yojson" not found.
# -> required by library "abi_parser" in _build/default/lib/abi_parser
# -> required by executable yult in bin/dune:2
# -> required by _build/default/bin/yult.exe
# -> required by _build/install/default/bin/yult
# -> required by _build/default/yultracer.install
# -> required by alias install



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build yultracer 0.2.0
+- 
+- The following changes have been performed
| - install dune      3.21.0
| - install menhir    20250912
| - install menhirCST 20250912
| - install menhirLib 20250912
| - install menhirSdk 20250912
+- 
# 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/4.14/.opam-switch/backup/state-20260119122054.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/linux32" "/bin/sh" "-c" "opam reinstall yultracer.0.2.0;
        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 "$pkg" != 'yultracer.0.2.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 1
2026-01-19 12:22.08: Job failed: Failed: Build failed
2026-01-19 12:22.08: Log analysis:
2026-01-19 12:22.08: >>> 
[ERROR] The compilation of yultracer.0.2.0 failed at "dune build -p yultracer -j 79".
 (score = 20)
2026-01-19 12:22.08: >>> 
# Error: Library "yojson" not found.
 (score = 48)
2026-01-19 12:22.08: Library "yojson" not found.