(for PR #29937)

2026-05-24 22:43.56: New job: build caqti-async.2.3.1, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29937/head (699c568442d9080169b06a0acf74464211d7c52c)
                              on centos-10-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29937/head" && git reset --hard 699c5684
git fetch origin master
git merge --no-edit 856df280428c158a5bb0b3afce1bec956b10ae6f
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:centos-10-ocaml-4.14@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn caqti-async.2.3.1 2.3.1
RUN opam reinstall caqti-async.2.3.1; \
    res=$?; \
    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-10\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'caqti-async.2.3.1' && partial_fails="$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 .

2026-05-24 22:43.56: Using cache hint "ocaml/opam:centos-10-ocaml-4.14@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9-caqti-async.2.3.1-699c568442d9080169b06a0acf74464211d7c52c"
2026-05-24 22:43.56: Using OBuilder spec:
((from ocaml/opam:centos-10-ocaml-4.14@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9)
 (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 caqti-async.2.3.1 2.3.1"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall caqti-async.2.3.1;\
             \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-10\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'caqti-async.2.3.1' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-05-24 22:43.56: Waiting for resource in pool OCluster
2026-05-24 22:55.44: Waiting for worker…
2026-05-24 22:58.13: Got resource from pool OCluster
Building on toxis.caelum.ci.dev
All commits already cached
HEAD is now at 856df28042 Merge pull request #29946 from hannesm/release-mirage-net-solo5-v0.8.1
Merge made by the 'ort' strategy.
 packages/caqti-async/caqti-async.2.3.1/opam        | 41 +++++++++++++
 .../caqti-driver-mariadb.2.3.1/opam                | 34 +++++++++++
 .../caqti-driver-pgx/caqti-driver-pgx.2.3.1/opam   | 33 +++++++++++
 .../caqti-driver-postgresql.2.3.1/opam             | 38 ++++++++++++
 .../caqti-driver-sqlite3.2.3.1/opam                | 33 +++++++++++
 packages/caqti-dynload/caqti-dynload.2.3.1/opam    | 41 +++++++++++++
 packages/caqti-eio/caqti-eio.2.3.1/opam            | 37 ++++++++++++
 packages/caqti-lwt/caqti-lwt.2.3.1/opam            | 39 ++++++++++++
 packages/caqti-mirage/caqti-mirage.2.3.1/opam      | 43 ++++++++++++++
 .../caqti-tls-async/caqti-tls-async.2.3.1/opam     | 36 +++++++++++
 packages/caqti-tls-eio/caqti-tls-eio.2.3.1/opam    | 34 +++++++++++
 packages/caqti-tls-lwt/caqti-tls-lwt.2.3.1/opam    | 35 +++++++++++
 packages/caqti-tls-miou/caqti-tls-miou.2.3.1/opam  | 34 +++++++++++
 packages/caqti-tls/caqti-tls.2.3.1/opam            | 40 +++++++++++++
 .../caqti-type-calendar.2.3.1/opam                 | 31 ++++++++++
 packages/caqti/caqti.2.3.1/opam                    | 69 ++++++++++++++++++++++
 16 files changed, 618 insertions(+)
 create mode 100644 packages/caqti-async/caqti-async.2.3.1/opam
 create mode 100644 packages/caqti-driver-mariadb/caqti-driver-mariadb.2.3.1/opam
 create mode 100644 packages/caqti-driver-pgx/caqti-driver-pgx.2.3.1/opam
 create mode 100644 packages/caqti-driver-postgresql/caqti-driver-postgresql.2.3.1/opam
 create mode 100644 packages/caqti-driver-sqlite3/caqti-driver-sqlite3.2.3.1/opam
 create mode 100644 packages/caqti-dynload/caqti-dynload.2.3.1/opam
 create mode 100644 packages/caqti-eio/caqti-eio.2.3.1/opam
 create mode 100644 packages/caqti-lwt/caqti-lwt.2.3.1/opam
 create mode 100644 packages/caqti-mirage/caqti-mirage.2.3.1/opam
 create mode 100644 packages/caqti-tls-async/caqti-tls-async.2.3.1/opam
 create mode 100644 packages/caqti-tls-eio/caqti-tls-eio.2.3.1/opam
 create mode 100644 packages/caqti-tls-lwt/caqti-tls-lwt.2.3.1/opam
 create mode 100644 packages/caqti-tls-miou/caqti-tls-miou.2.3.1/opam
 create mode 100644 packages/caqti-tls/caqti-tls.2.3.1/opam
 create mode 100644 packages/caqti-type-calendar/caqti-type-calendar.2.3.1/opam
 create mode 100644 packages/caqti/caqti.2.3.1/opam

(from ocaml/opam:centos-10-ocaml-4.14@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9)
Unable to find image 'ocaml/opam:centos-10-ocaml-4.14@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9' locally
docker.io/ocaml/opam@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9: Pulling from ocaml/opam
fd8e0b0eefd7: Already exists
db8861ce9493: Already exists
50a2d95a38ed: Already exists
31460203772c: Already exists
6d183a4d8cb8: Already exists
8a40fa767f7d: Already exists
f6946abca931: Already exists
0afd7ea846ca: Already exists
9eedfa159b6c: Already exists
60d233553a71: Already exists
6a73bd7d349c: Already exists
413542ed97af: Already exists
9533f26799d5: Already exists
7198f65fde0c: Already exists
e94def20e9fe: Already exists
753a93dc1978: Already exists
a45513c1d034: Already exists
a45513c1d034: Already exists
76a5dbbfab37: Already exists
fe3b5f0bb8a6: Already exists
707a56058504: Already exists
ff69d9bd12a0: Already exists
4f4fb700ef54: Already exists
d941dc87236e: Already exists
6143c2fe658a: Already exists
aa8100e426ff: Already exists
53e9e21dfc25: Already exists
072c8e87be5f: Already exists
73aacf3ef47e: Already exists
f5fadd6977f8: Already exists
487ab55ffd6a: Already exists
4bc4ef1a2d87: Already exists
392dff9718e0: Already exists
cd5bb21a1ac5: Already exists
8a887fc73b5b: Already exists
3375901daef5: Already exists
efbe2cac90af: Already exists
82a4c0c166a3: Already exists
9ba826da2507: Already exists
4f4fb700ef54: Already exists
ffc9f33c8781: Already exists
79b0aebde02e: Pulling fs layer
870a9f178e03: Pulling fs layer
3d0c650c5198: Pulling fs layer
aeeb4a3564f2: Pulling fs layer
aeeb4a3564f2: Waiting
3d0c650c5198: Download complete
870a9f178e03: Verifying Checksum
870a9f178e03: Download complete
aeeb4a3564f2: Download complete
79b0aebde02e: Verifying Checksum
79b0aebde02e: Download complete
79b0aebde02e: Pull complete
870a9f178e03: Pull complete
3d0c650c5198: Pull complete
aeeb4a3564f2: Pull complete
Digest: sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9
Status: Downloaded newer image for ocaml/opam@sha256:2e2bd1982e0302d4c25a786a4a321827718e54aab664002a930ed0285d8ba1c9
2026-05-24 22:58.47 ---> saved as "2122e11e71147d96ed433cab323d5a13dbfedddfd8d58bd5e62d965b8f898fb2"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-05-24 22:58.48 ---> saved as "0d2b0eb6d07635bcfa99bfbaa96c814deeb151889cf6bfb8e835115546fded8a"

/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 2.1 to version 2.2, which can't be reverted.
You may want to back it up before going further.

Continue? [Y/n] y
[NOTE] The 'jobs' option was reset, its value was 1 and its new value will vary according to the current number of cores on your machine. You can restore the fixed value using:
           opam option jobs=1 --global
Format upgrade done.

<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] no changes from git+file:///home/opam/opam-repository
2026-05-24 22:59.00 ---> saved as "b6645319da9e5d82d30fb6195c03c2f1c19106af421208acaa9a067b127a63c8"

/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         2.5.1
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=centos os-version=10
# 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
2026-05-24 22:59.00 ---> saved as "009dc25b314c4363bfc98265485369464c059235e8d766404a59dc2a2905f088"

/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/"))
2026-05-24 22:59.12 ---> saved as "6b00d1306b1ac92d551bedcc1189ad08bae9716ffe8e30e095d1149cd66a04c7"

/home/opam: (copy (src .) (dst opam-repository/))
2026-05-24 22:59.22 ---> saved as "becd6c294c1df04be93a659627bbc1d40f3f3848ee5c021ebdfae3961fac5d44"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-05-24 22:59.35 ---> saved as "caeda00d2d0942e4c94856d4553c086d5cf08ce4d32b541124c8256f04232067"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "yum" "makecache"
- CentOS Stream 10 - BaseOS                        88 kB/s |  15 kB     00:00    
- CentOS Stream 10 - BaseOS                       6.8 MB/s | 7.0 MB     00:01    
- CentOS Stream 10 - AppStream                    112 kB/s |  15 kB     00:00    
- CentOS Stream 10 - AppStream                    7.3 MB/s | 3.6 MB     00:00    
- CentOS Stream 10 - CRB                          112 kB/s |  15 kB     00:00    
- CentOS Stream 10 - CRB                          3.4 MB/s | 839 kB     00:00    
- CentOS Stream 10 - Extras packages              132 kB/s |  16 kB     00:00    
- Metadata cache created.
2026-05-24 22:59.43 ---> saved as "441bf9f6652ea7986574fd67fcb7d8215e23242c1d9ad3f8d84ade31f05ee664"

/home/opam: (run (shell "opam pin add -k version -yn caqti-async.2.3.1 2.3.1"))
caqti-async is now pinned to version 2.3.1
2026-05-24 22:59.44 ---> saved as "46afdfdf9d8a1b85ecc176e07111aa394a48637738de7fba09d30524cb56049a"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall caqti-async.2.3.1;\
                        \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-10\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'caqti-async.2.3.1' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
caqti-async.2.3.1 is not installed. Install it? [Y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.14.3
    - caqti-async >= 2.3.1 -> async_kernel >= v0.17.0 -> ocaml >= 5.1.0 -> ocaml-variants < 5.1.2~
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - caqti-async >= 2.3.1 -> async_kernel >= v0.17.0 -> ocaml >= 5.1.0 -> ocaml-variants >= 5.1.2~ -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall caqti-async.2.3.1;
        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-10\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'caqti-async.2.3.1' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2026-05-24 22:59.57: Job failed: Failed: Build failed
2026-05-24 22:59.57: Log analysis:
2026-05-24 22:59.57: >>> 
No solution found, exiting
 (score = 100)
2026-05-24 22:59.57: [SKIP] Package not available