(not at the head of any monitored branch or PR)
2026-01-07 09:44.44: New job: build lwt.6.0.0, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29184/head (1a538ed11284d3a47bf9851621c653c567cbc1a3)
                              on ubuntu-24.04-ocaml-4.14/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29184/head" && git reset --hard 1a538ed1
git fetch origin master
git merge --no-edit 26ba45ff7b4d5c474404d370f5dab40d5aca345f
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:9fc5e2c9399e6e808c58fd48f28c7839ea6bab7e94e1fcdc33f42899d20d8ff3
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn lwt.6.0.0 6.0.0
RUN opam reinstall lwt.6.0.0; \
    res=$?; \
    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 "\"ubuntu-24.04\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'lwt.6.0.0' && partial_fails="$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 .

2026-01-07 09:44.44: Using cache hint "ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:9fc5e2c9399e6e808c58fd48f28c7839ea6bab7e94e1fcdc33f42899d20d8ff3-lwt.6.0.0-1a538ed11284d3a47bf9851621c653c567cbc1a3"
2026-01-07 09:44.44: Using OBuilder spec:
((from ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:9fc5e2c9399e6e808c58fd48f28c7839ea6bab7e94e1fcdc33f42899d20d8ff3)
 (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 lwt.6.0.0 6.0.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall lwt.6.0.0;\
             \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 \"\\\"ubuntu-24.04\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'lwt.6.0.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-01-07 09:44.44: Waiting for resource in pool OCluster
2026-01-07 09:44.46: Waiting for worker…
2026-01-07 09:47.11: Got resource from pool OCluster
Building on eumache
All commits already cached
HEAD is now at 26ba45ff7b Merge pull request #29174 from craff/master
Merge made by the 'ort' strategy.
 packages/lwt/lwt.6.0.0/opam                        | 64 ++++++++++++++++++++++
 packages/lwt_direct/lwt_direct.6.0.0/opam          | 41 ++++++++++++++
 packages/lwt_ppx/lwt_ppx.6.0.0/opam                | 46 ++++++++++++++++
 .../lwt_runtime_events.6.0.0/opam                  | 39 +++++++++++++
 4 files changed, 190 insertions(+)
 create mode 100644 packages/lwt/lwt.6.0.0/opam
 create mode 100644 packages/lwt_direct/lwt_direct.6.0.0/opam
 create mode 100644 packages/lwt_ppx/lwt_ppx.6.0.0/opam
 create mode 100644 packages/lwt_runtime_events/lwt_runtime_events.6.0.0/opam

(from ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:9fc5e2c9399e6e808c58fd48f28c7839ea6bab7e94e1fcdc33f42899d20d8ff3)
Unable to find image 'ocaml/opam:ubuntu-24.04-ocaml-4.14@sha256:9fc5e2c9399e6e808c58fd48f28c7839ea6bab7e94e1fcdc33f42899d20d8ff3' locally
docker.io/ocaml/opam@sha256:9fc5e2c9399e6e808c58fd48f28c7839ea6bab7e94e1fcdc33f42899d20d8ff3: Pulling from ocaml/opam
20043066d3d5: Already exists
058055706a35: Already exists
103a5176c3cb: Already exists
a215bdf1a36e: Already exists
ef58704989ad: Already exists
8c884eaa9f7e: Already exists
0166b7d99fd4: Already exists
695da08c6cb5: Already exists
1b51164c10a4: Already exists
0cbdb574bdb2: Already exists
80f23427a516: Already exists
a38453fd1fd3: Already exists
0ead7f726118: Already exists
9856f3f77223: Already exists
5bd28e354bd9: Already exists
b8460a137f59: Already exists
0938da924bed: Already exists
0938da924bed: Already exists
893f88dc2b07: Already exists
45da1cf47940: Already exists
ce8b062999d7: Already exists
a83b556e6bdf: Already exists
4f4fb700ef54: Already exists
9f56ad17ea8a: Already exists
5b7fdd996b5d: Already exists
3e15384c8325: Already exists
98ab8ae8cc9f: Already exists
5d571378eb88: Already exists
a4409f523cbd: Already exists
2820d3dce66b: Already exists
a714a996b7b5: Already exists
5f135c251842: Already exists
a6e502b63e7a: Already exists
57e985e671a0: Already exists
494bcddb1137: Already exists
37a72d226368: Already exists
2bdb26fd6727: Already exists
eaf35f2a7ca3: Already exists
c536e73e931c: Already exists
11e009d0ba76: Already exists
698d794977b7: Already exists
34eac5565581: Already exists
e51b3b74d1ba: Already exists
11546cb6d511: Already exists
166ed45d79dd: Already exists
Digest: sha256:9fc5e2c9399e6e808c58fd48f28c7839ea6bab7e94e1fcdc33f42899d20d8ff3
Status: Downloaded newer image for ocaml/opam@sha256:9fc5e2c9399e6e808c58fd48f28c7839ea6bab7e94e1fcdc33f42899d20d8ff3
2026-01-07 09:47.14 ---> using "52e3b54d97a60d053db5795f0de04e76c4fcdac5bec625ef9ee5b82555f934ee" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-01-07 09:47.14 ---> using "6e8df28ed76cadbe0e41cfdd648bf99a253319b84172c6c9e128e0eb4a1ebf50" 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 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
2026-01-07 09:47.14 ---> using "c1e831d07cc954b9f14dc7eecff4ed0d5e7d60314a9ceb3fc0c7225f5e188ef7" 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=x86_64 os=linux os-distribution=ubuntu os-version=24.04
# 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" {= "4.14.2"}]
# 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
2026-01-07 09:47.14 ---> using "1f641a52115d39f5eeb147cc8f1bc92cee889149bff9975d44bc3e8d8c26053a" 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/"))
2026-01-07 09:47.14 ---> using "ec3f5139a00b0608d5cf799dac0bcd6ae700c589c7b770fd3c0b1b31f0ed2f6d" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2026-01-07 09:47.24 ---> saved as "d1198c118582f0597004a11c6c924f68a1254dd9b618e4458e6cfff6760fea53"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-01-07 09:47.46 ---> saved as "931598adeba24e5df66c06778a213587dd14d95bd122045c95b51a9ea55a283e"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://security.ubuntu.com/ubuntu noble-security InRelease [126 kB]
- Get:2 http://security.ubuntu.com/ubuntu noble-security/universe amd64 Packages [1183 kB]
- Get:3 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages [1752 kB]
- Hit:4 http://archive.ubuntu.com/ubuntu noble InRelease
- Get:5 http://archive.ubuntu.com/ubuntu noble-updates InRelease [126 kB]
- Get:6 http://archive.ubuntu.com/ubuntu noble-backports InRelease [126 kB]
- Get:7 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages [2130 kB]
- Get:8 http://archive.ubuntu.com/ubuntu noble-updates/universe amd64 Packages [1950 kB]
- Fetched 7393 kB in 1s (9811 kB/s)
- Reading package lists...
- 
2026-01-07 09:47.48 ---> saved as "70c0645891a70022780eac8a7fa5748edbc582dfa315bb6ca233d62e4c6a9912"

/home/opam: (run (shell "opam pin add -k version -yn lwt.6.0.0 6.0.0"))
lwt is now pinned to version 6.0.0
2026-01-07 09:47.49 ---> saved as "b94e3d0a3beb25765cbcf65ad352d792ee2802b6dc3f491753687ac3ecbb9866"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall lwt.6.0.0;\
                        \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 \"\\\"ubuntu-24.04\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'lwt.6.0.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
lwt.6.0.0 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 8 packages
  - install base-bytes        base           [required by ocplib-endian]
  - install cppo              1.8.0          [required by lwt]
  - install csexp             1.5.2          [required by dune-configurator]
  - install dune              3.20.2         [required by lwt]
  - install dune-configurator 3.20.2         [required by lwt]
  - install lwt               6.0.0 (pinned)
  - install ocamlfind         1.9.8          [required by base-bytes]
  - install ocplib-endian     1.2            [required by lwt]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved cppo.1.8.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved dune.3.20.2, dune-configurator.3.20.2  (cached)
-> retrieved lwt.6.0.0  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ocplib-endian.1.2  (cached)
-> installed ocamlfind.1.9.8
-> installed base-bytes.base
-> installed dune.3.20.2
-> installed csexp.1.5.2
-> installed cppo.1.8.0
-> installed ocplib-endian.1.2
-> installed dune-configurator.3.20.2
-> installed lwt.6.0.0
Done.
# To update the current shell environment, run: eval $(opam env)
2026-01-07 09:48.28 ---> saved as "cdd5eb1b6525b636ab36431afb804ea46cdb395103237931cca147bfcc2ea9a5"
Job succeeded
2026-01-07 09:48.38: Job succeeded