Build:
  1. 0
2026-04-07 06:20.56: New job: build memtrace_viewer.v0.17.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29656/head (cbbbca5ee88f19dd465867de9a9a49174b6e4deb)
                              on centos-9-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29656/head" && git reset --hard cbbbca5e
git fetch origin master
git merge --no-edit 67472cd54293d750a62d6d4423024d55f77268b0
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-9-ocaml-4.14@sha256:c88a8dd5557c6e7de3112fb0a71c6e479a9463c7d7db04b91ba60e34082cc73d
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn memtrace_viewer.v0.17.0 v0.17.0
RUN opam reinstall memtrace_viewer.v0.17.0; \
    res=$?; \
    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 "\"centos-9\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'memtrace_viewer.v0.17.0' && partial_fails="$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 .

2026-04-07 06:20.56: Using cache hint "ocaml/opam:centos-9-ocaml-4.14@sha256:c88a8dd5557c6e7de3112fb0a71c6e479a9463c7d7db04b91ba60e34082cc73d-memtrace_viewer.v0.17.0-cbbbca5ee88f19dd465867de9a9a49174b6e4deb"
2026-04-07 06:20.56: Using OBuilder spec:
((from ocaml/opam:centos-9-ocaml-4.14@sha256:c88a8dd5557c6e7de3112fb0a71c6e479a9463c7d7db04b91ba60e34082cc73d)
 (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 memtrace_viewer.v0.17.0 v0.17.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall memtrace_viewer.v0.17.0;\
             \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 \"\\\"centos-9\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'memtrace_viewer.v0.17.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-04-07 06:20.56: Waiting for resource in pool OCluster
2026-04-07 06:20.56: Waiting for worker…
2026-04-07 06:20.57: Got resource from pool OCluster
Building on clete.caelum.ci.dev
All commits already cached
Updating files:  98% (18313/18636)
Updating files:  99% (18450/18636)
Updating files: 100% (18636/18636)
Updating files: 100% (18636/18636), done.
HEAD is now at 67472cd542 Merge pull request #29652 from RyanGibb/master
Updating 67472cd542..cbbbca5ee8
Fast-forward
 packages/memtrace_viewer/memtrace_viewer.v0.17.0/opam | 1 +
 1 file changed, 1 insertion(+)

(from ocaml/opam:centos-9-ocaml-4.14@sha256:c88a8dd5557c6e7de3112fb0a71c6e479a9463c7d7db04b91ba60e34082cc73d)
2026-04-07 06:22.39 ---> saved as "c12e2683b1b7ccfd4c3fbeab718f9187e348fe216065f1494d2140dffddc01a2"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-04-07 06:22.39 ---> saved as "65280ae944a3d789bae6518b368f1a8da0d261ce83bde3bd2773b24ed5890349"

/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
2026-04-07 06:23.02 ---> saved as "007fe2a6ea8fcb5134e6a455038f453f7754a6e2eff6e9c589467dbeb25d6310"

/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=centos os-version=9
# 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       4.14
# invariant            ["ocaml-base-compiler" {= "4.14.3"}]
# compiler-packages    ocaml-base-compiler.4.14.3, 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       4.14.3
2026-04-07 06:23.02 ---> saved as "6ea348567818f3efd15ff5914a3401c33c88366492ac7386bd5ac8f5a9d132b4"

/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/"))
2026-04-07 06:23.09 ---> saved as "0876e5deec9e4a9f153239abfebbb2b346abbfef9264a5b4b6f414be496cc668"

/home/opam: (copy (src .) (dst opam-repository/))
2026-04-07 06:23.17 ---> saved as "11300bd8f897429c893716ea508760f5037cc439018d9542d6bed7eb9fbe58a9"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-04-07 06:23.33 ---> saved as "2c19c2055d53b574fa5d0a5c340c903efa9a24e5b80883260dd9f640536246f5"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 9 - BaseOS                         72 kB/s |  10 kB     00:00    
- CentOS Stream 9 - BaseOS                         10 MB/s | 8.9 MB     00:00    
- CentOS Stream 9 - AppStream                      85 kB/s |  11 kB     00:00    
- CentOS Stream 9 - AppStream                      13 MB/s |  27 MB     00:02    
- CentOS Stream 9 - CRB                            77 kB/s |  10 kB     00:00    
- CentOS Stream 9 - CRB                            11 MB/s | 8.0 MB     00:00    
- CentOS Stream 9 - Extras packages               107 kB/s |  16 kB     00:00    
- Metadata cache created.
2026-04-07 06:23.49 ---> saved as "2427de9e13bd91eedde90351c2c8b798a85b5d4466ea73fa52dfe0a4d078e860"

/home/opam: (run (shell "opam pin add -k version -yn memtrace_viewer.v0.17.0 v0.17.0"))
memtrace_viewer is now pinned to version v0.17.0
2026-04-07 06:23.49 ---> saved as "373266af8ec9d68fe969dd4653e6ee213c20f3f2ac018538f92494f6033c3f2a"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall memtrace_viewer.v0.17.0;\
                        \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 \"\\\"centos-9\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'memtrace_viewer.v0.17.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
memtrace_viewer.v0.17.0 is not installed. Install it? [Y/n] y
  * No agreement on the version of ocaml:
    - (invariant) -> ocaml-base-compiler = 4.14.3 -> ocaml = 4.14.3
    - memtrace_viewer >= v0.17.0 -> async_rpc_kernel >= v0.17 -> ocaml >= 5.1.0
    You can temporarily relax the switch invariant with `--update-invariant'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall memtrace_viewer.v0.17.0;
        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 "\"centos-9\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'memtrace_viewer.v0.17.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-04-07 06:24.02: Job failed: Failed: Build failed
2026-04-07 06:24.02: Log analysis:
2026-04-07 06:24.02: >>> 
No solution found, exiting
 (score = 100)
2026-04-07 06:24.02: [SKIP] Package not available