(not at the head of any monitored branch or PR)
2026-03-10 09:00.00: New job: test lwt_eio.0.5, using opam dev
                              from https://github.com/ocaml/opam-repository.git#refs/pull/29530/head (3af7d0a25910b3d20c909e559efb484eb6a78128)
                              on debian-13-ocaml-5.4-no-flat-float-array/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/29530/head" && git reset --hard 3af7d0a2
git fetch origin master
git merge --no-edit 3c70647a78a7fd22066fca4f17f7ca4514500663
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-13-ocaml-5.4-no-flat-float-array@sha256:3ada8cd86e83cec71a3cf57e754d6074776a8db5d2233b5b677dc13fd112224e
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-dev /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn lwt_eio.0.5 0.5
RUN opam reinstall lwt_eio.0.5; \
    res=$?; \
    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 "$pkg" != 'lwt_eio.0.5' && partial_fails="$partial_fails $pkg"; \
    done; \
    test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}"; \
    exit 1
RUN (opam reinstall --with-test lwt_eio.0.5) || true
RUN opam reinstall --with-test --verbose lwt_eio.0.5; \
    res=$?; \
    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 "$pkg" != 'lwt_eio.0.5' && partial_fails="$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 .

2026-03-10 09:00.00: Using cache hint "ocaml/opam:debian-13-ocaml-5.4-no-flat-float-array@sha256:3ada8cd86e83cec71a3cf57e754d6074776a8db5d2233b5b677dc13fd112224e-lwt_eio.0.5-3af7d0a25910b3d20c909e559efb484eb6a78128"
2026-03-10 09:00.00: Using OBuilder spec:
((from ocaml/opam:debian-13-ocaml-5.4-no-flat-float-array@sha256:3ada8cd86e83cec71a3cf57e754d6074776a8db5d2233b5b677dc13fd112224e)
 (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_eio.0.5 0.5"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall lwt_eio.0.5;\
             \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 \"$pkg\" != 'lwt_eio.0.5' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
 (run (network host)
      (shell "(opam reinstall --with-test lwt_eio.0.5) || true"))
 (run (shell  "opam reinstall --with-test --verbose lwt_eio.0.5;\
             \n        res=$?;\
             \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 \"$pkg\" != 'lwt_eio.0.5' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2026-03-10 09:00.00: Waiting for resource in pool OCluster
2026-03-10 10:15.47: Waiting for worker…
2026-03-10 10:17.17: Got resource from pool OCluster
Building on clete
All commits already cached
Updating files:  67% (12422/18405)
Updating files:  68% (12516/18405)
Updating files:  69% (12700/18405)
Updating files:  70% (12884/18405)
Updating files:  71% (13068/18405)
Updating files:  72% (13252/18405)
Updating files:  73% (13436/18405)
Updating files:  74% (13620/18405)
Updating files:  75% (13804/18405)
Updating files:  76% (13988/18405)
Updating files:  77% (14172/18405)
Updating files:  78% (14356/18405)
Updating files:  79% (14540/18405)
Updating files:  80% (14724/18405)
Updating files:  81% (14909/18405)
Updating files:  82% (15093/18405)
Updating files:  83% (15277/18405)
Updating files:  84% (15461/18405)
Updating files:  85% (15645/18405)
Updating files:  86% (15829/18405)
Updating files:  87% (16013/18405)
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Updating files:  99% (18221/18405)
Updating files: 100% (18405/18405)
Updating files: 100% (18405/18405), done.
HEAD is now at 3c70647a78 Merge pull request #29507 from NathanReb/release-ppxlib-0-38-0-5-5-preview
Updating 3c70647a78..3af7d0a259
Fast-forward
 packages/bimage-lwt/bimage-lwt.0.3.0/opam    | 6 +++++-
 packages/bimage-lwt/bimage-lwt.0.3.1/opam    | 6 +++++-
 packages/bimage-lwt/bimage-lwt.0.4.0/opam    | 6 +++++-
 packages/caqti-lwt/caqti-lwt.0.11.0/opam     | 4 +++-
 packages/caqti-lwt/caqti-lwt.1.0.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.2.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.3.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.6.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.7.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.8.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.1.9.0/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.2.0.1/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.2.1.1/opam      | 6 +++++-
 packages/caqti-lwt/caqti-lwt.2.2.4/opam      | 6 +++++-
 packages/fuseau-lwt/fuseau-lwt.0.1/opam      | 6 +++++-
 packages/lambda-term/lambda-term.1.13/opam   | 6 +++++-
 packages/lambda-term/lambda-term.2.0.1/opam  | 6 +++++-
 packages/lambda-term/lambda-term.2.0.2/opam  | 6 +++++-
 packages/lambda-term/lambda-term.2.0.3/opam  | 6 +++++-
 packages/lambda-term/lambda-term.2.0/opam    | 6 +++++-
 packages/lambda-term/lambda-term.3.0.0/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.0.1/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.1.0/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.2.0/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.3.0/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.3.1/opam  | 6 +++++-
 packages/lambda-term/lambda-term.3.3.2/opam  | 6 +++++-
 packages/lwt_domain/lwt_domain.0.1.0/opam    | 6 +++++-
 packages/lwt_domain/lwt_domain.0.2.0/opam    | 6 +++++-
 packages/lwt_domain/lwt_domain.0.3.0/opam    | 6 +++++-
 packages/lwt_eio/lwt_eio.0.1/opam            | 6 +++++-
 packages/lwt_eio/lwt_eio.0.2/opam            | 6 +++++-
 packages/lwt_eio/lwt_eio.0.3/opam            | 6 +++++-
 packages/lwt_eio/lwt_eio.0.4/opam            | 6 +++++-
 packages/lwt_eio/lwt_eio.0.5.1/opam          | 6 +++++-
 packages/lwt_eio/lwt_eio.0.5/opam            | 6 +++++-
 packages/lwt_glib/lwt_glib.1.0.1/opam        | 6 +++++-
 packages/lwt_glib/lwt_glib.1.1.0/opam        | 6 +++++-
 packages/lwt_glib/lwt_glib.1.1.1/opam        | 6 +++++-
 packages/lwt_log/lwt_log.1.1.0/opam          | 6 +++++-
 packages/lwt_log/lwt_log.1.1.1/opam          | 6 +++++-
 packages/lwt_log/lwt_log.1.1.2/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.0.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.0.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.1.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.2/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.3/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.1.2.4/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.0.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.0.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.0.2/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.0.3/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.2.1.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.8.0/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.8.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.9.1/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.9.2/opam          | 6 +++++-
 packages/lwt_ppx/lwt_ppx.5.9.3/opam          | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.10/opam | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.6/opam  | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.7/opam  | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.8/opam  | 6 +++++-
 packages/moonpool-lwt/moonpool-lwt.0.9/opam  | 6 +++++-
 packages/mwt/mwt.0.1.0/opam                  | 6 +++++-
 packages/nocrypto/nocrypto.0.5.4-1/opam      | 6 +++++-
 packages/nocrypto/nocrypto.0.5.4-2/opam      | 6 +++++-
 packages/ocluster/ocluster.0.1/opam          | 4 +++-
 packages/ocluster/ocluster.0.2.1/opam        | 6 +++++-
 packages/ocluster/ocluster.0.2/opam          | 4 +++-
 packages/ocluster/ocluster.0.3.0/opam        | 6 +++++-
 packages/picos/picos.0.3.0/opam              | 6 +++++-
 packages/picos/picos.0.4.0/opam              | 6 +++++-
 packages/picos_lwt/picos_lwt.0.5.0/opam      | 6 +++++-
 packages/picos_lwt/picos_lwt.0.6.0/opam      | 6 +++++-
 packages/tezt/tezt.2.0.0/opam                | 6 +++++-
 packages/tezt/tezt.3.0.0/opam                | 4 +++-
 packages/tezt/tezt.3.1.0/opam                | 4 +++-
 packages/tezt/tezt.3.1.1/opam                | 4 +++-
 packages/tezt/tezt.4.0.0/opam                | 4 +++-
 packages/tezt/tezt.4.1.0/opam                | 4 +++-
 packages/tezt/tezt.4.2.0/opam                | 4 +++-
 packages/tezt/tezt.4.3.0/opam                | 4 +++-
 84 files changed, 400 insertions(+), 84 deletions(-)

(from ocaml/opam:debian-13-ocaml-5.4-no-flat-float-array@sha256:3ada8cd86e83cec71a3cf57e754d6074776a8db5d2233b5b677dc13fd112224e)
Unable to find image 'ocaml/opam:debian-13-ocaml-5.4-no-flat-float-array@sha256:3ada8cd86e83cec71a3cf57e754d6074776a8db5d2233b5b677dc13fd112224e' locally
docker.io/ocaml/opam@sha256:3ada8cd86e83cec71a3cf57e754d6074776a8db5d2233b5b677dc13fd112224e: Pulling from ocaml/opam
866771c43bf5: Already exists
1e49bea09367: Already exists
e793768537e6: Already exists
ed323d3d481a: Already exists
7df34a5cd5f1: Already exists
fd712d3eb935: Already exists
4b9fb8c99118: Already exists
9d9a01948b94: Already exists
0f1514f90b32: Already exists
e1ec5a753447: Already exists
03cc323e2f71: Already exists
c09c08ea9749: Already exists
b36b619f8e6b: Already exists
195344ca5274: Already exists
228ee78582a6: Already exists
504bde1c25b3: Already exists
9d8b1356c89f: Already exists
9d8b1356c89f: Already exists
568fb6dda155: Already exists
c499c9198aea: Already exists
048e5e358118: Already exists
871ca48eb45d: Already exists
4f4fb700ef54: Already exists
a5a2568b9df9: Already exists
068cf3106ac8: Already exists
559f54ec9b29: Already exists
798ffd96fde5: Already exists
e9a891bf80d7: Already exists
d720cfe12674: Already exists
c81c932f4a91: Already exists
79f24fa3bb11: Already exists
8c1debcd8c20: Already exists
1bb2cfea7250: Already exists
2b3d3ca75e4c: Already exists
557cacaf263c: Already exists
d10483022eef: Already exists
7b62a90d8223: Already exists
28ce8ea66e72: Already exists
d975909ea717: Already exists
5c215c69c247: Already exists
e7c082452a54: Already exists
8bf35cb0462f: Pulling fs layer
d4896673740b: Pulling fs layer
683ee0e9700e: Pulling fs layer
a83bfaecce56: Pulling fs layer
807b435e6cea: Pulling fs layer
e39e0cd88f8c: Pulling fs layer
84f681a5807c: Pulling fs layer
a83bfaecce56: Waiting
e39e0cd88f8c: Waiting
807b435e6cea: Waiting
84f681a5807c: Waiting
d4896673740b: Download complete
8bf35cb0462f: Verifying Checksum
8bf35cb0462f: Download complete
683ee0e9700e: Verifying Checksum
683ee0e9700e: Download complete
8bf35cb0462f: Pull complete
d4896673740b: Pull complete
683ee0e9700e: Pull complete
807b435e6cea: Download complete
e39e0cd88f8c: Download complete
84f681a5807c: Verifying Checksum
84f681a5807c: Download complete
a83bfaecce56: Verifying Checksum
a83bfaecce56: Download complete
a83bfaecce56: Pull complete
807b435e6cea: Pull complete
e39e0cd88f8c: Pull complete
84f681a5807c: Pull complete
Digest: sha256:3ada8cd86e83cec71a3cf57e754d6074776a8db5d2233b5b677dc13fd112224e
Status: Downloaded newer image for ocaml/opam@sha256:3ada8cd86e83cec71a3cf57e754d6074776a8db5d2233b5b677dc13fd112224e
2026-03-10 10:17.33 ---> saved as "86fe993977cadad4b21cfa840e6dfb5b99f106e1130ecc565d5821717091059d"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-dev /usr/bin/opam"))
2026-03-10 10:17.34 ---> saved as "33f176a665d1111b9c5f22d65a4918017999f59d91d0783646fe0aa5df139a47"

/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
2026-03-10 10:18.09 ---> saved as "c46234bdc09404d769dded661c794fb487f1203ddb6db05b7aca5b5afea98286"

/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       5.4
# invariant            ["ocaml-variants" {= "5.4.0+options"}]
# compiler-packages    ocaml-compiler.5.4.0, ocaml-option-no-flat-float-array.1, ocaml-options-only-no-flat-float-array.1, ocaml-variants.5.4.0+options
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/5.4/lib/ocaml/stublibs:/home/opam/.opam/5.4/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       5.4.0+options+no-flat-float-array
2026-03-10 10:18.11 ---> saved as "1d96fac9dd1a52ed797e00992d5e4e65fd6a7e48c71e7ae1a289129acb60abf1"

/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/"))
2026-03-10 10:18.24 ---> saved as "eae096a2140d7585f7f39bfac4e05bc630d4450467ed79811fb8c4fa8d58a9fe"

/home/opam: (copy (src .) (dst opam-repository/))
2026-03-10 10:18.45 ---> saved as "f098b2a6fe3d923a02f225878773720c8d4b8dad15ef94556e49842b6c83b01f"

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2026-03-10 10:19.05 ---> saved as "ee05295b96191e81944fefc11d6d49d4eec692f365bcebc40248a6f8456b47ce"

/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 [108 kB]
- Fetched 199 kB in 0s (984 kB/s)
- Reading package lists...
- 
2026-03-10 10:19.06 ---> saved as "e088a2efd1032e6010fd303f317085ee68dfa591bbe2946e7faef0438277993a"

/home/opam: (run (shell "opam pin add -k version -yn lwt_eio.0.5 0.5"))
lwt_eio is now pinned to version 0.5
2026-03-10 10:19.07 ---> saved as "f5260ac59f975866cb3c01d60ffda73856b4485312bd6ecdc6f59a39fda8bc6d"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall lwt_eio.0.5;\
                        \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 \"$pkg\" != 'lwt_eio.0.5' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
lwt_eio.0.5 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 23 packages
  - install base-bytes         base         [required by ocplib-endian]
  - install bigstringaf        0.10.0       [required by eio]
  - install cppo               1.8.0        [required by lwt]
  - install csexp              1.5.2        [required by dune-configurator]
  - install cstruct            6.2.0        [required by eio]
  - install domain-local-await 1.0.1        [required by eio]
  - install dune               3.21.1       [required by lwt_eio]
  - install dune-configurator  3.21.1       [required by lwt]
  - install eio                1.3          [required by lwt_eio]
  - install fmt                0.11.0       [required by eio]
  - install hmap               0.8.1        [required by eio]
  - install lwt                6.0.0        [required by lwt_eio]
  - install lwt-dllist         1.1.0        [required by eio]
  - install lwt_eio            0.5 (pinned)
  - install mtime              2.1.0        [required by eio]
  - install ocamlbuild         0.16.1       [required by hmap, mtime]
  - install ocamlfind          1.9.8        [required by hmap, mtime]
  - install ocplib-endian      1.2          [required by lwt]
  - install optint             0.3.0        [required by eio]
  - install psq                0.2.1        [required by eio]
  - install seq                base         [required by psq]
  - install thread-table       1.0.0        [required by domain-local-await]
  - install topkg              1.1.1        [required by hmap, mtime]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved bigstringaf.0.10.0  (cached)
-> retrieved cppo.1.8.0  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved cstruct.6.2.0  (cached)
-> retrieved domain-local-await.1.0.1  (cached)
-> retrieved dune.3.21.1, dune-configurator.3.21.1  (cached)
-> retrieved eio.1.3  (cached)
-> retrieved fmt.0.11.0  (cached)
-> retrieved hmap.0.8.1  (cached)
-> retrieved lwt.6.0.0  (cached)
-> retrieved lwt-dllist.1.1.0  (cached)
-> retrieved lwt_eio.0.5  (cached)
-> retrieved mtime.2.1.0  (cached)
-> retrieved ocamlbuild.0.16.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved ocplib-endian.1.2  (cached)
-> retrieved optint.0.3.0  (cached)
-> retrieved psq.0.2.1  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved thread-table.1.0.0  (cached)
-> retrieved topkg.1.1.1  (cached)
-> installed ocamlfind.1.9.8
-> installed base-bytes.base
-> installed ocamlbuild.0.16.1
-> installed topkg.1.1.1
-> installed hmap.0.8.1
-> installed fmt.0.11.0
-> installed mtime.2.1.0
-> installed dune.3.21.1
-> installed lwt-dllist.1.1.0
-> installed csexp.1.5.2
-> installed cppo.1.8.0
-> installed cstruct.6.2.0
-> installed optint.0.3.0
-> installed psq.0.2.1
-> installed thread-table.1.0.0
-> installed ocplib-endian.1.2
-> installed domain-local-await.1.0.1
-> installed dune-configurator.3.21.1
-> installed bigstringaf.0.10.0
-> installed eio.1.3
-> installed lwt.6.0.0
-> installed lwt_eio.0.5
Done.
# To update the current shell environment, run: eval $(opam env)
2026-03-10 10:19.53 ---> saved as "ba4326d3a2fbb7e73bc9fb8e1362d6932b0dfff618dba85d61d8ed48a9fc0597"

/home/opam: (run (network host)
                 (shell "(opam reinstall --with-test lwt_eio.0.5) || true"))
The following actions will be performed:
=== downgrade 1 package
  - downgrade eio           1.3 to 0.12  [required by lwt_eio]
=== recompile 3 packages
  - recompile cstruct       6.2.0        [uses fmt]
  - recompile fmt           0.11.0       [uses cmdliner]
  - recompile lwt_eio       0.5 (pinned)
=== install 13 packages
  - install   astring       0.8.5        [required by mdx]
  - install   camlp-streams 5.0.1        [required by mdx]
  - install   cmdliner      2.1.0        [required by mdx]
  - install   eio_linux     0.12         [required by eio_main]
  - install   eio_main      0.12         [required by lwt_eio]
  - install   eio_posix     0.12         [required by eio_main]
  - install   iomux         0.4          [required by eio_posix]
  - install   logs          0.10.0       [required by mdx]
  - install   mdx           2.5.1        [required by lwt_eio]
  - install   ocaml-version 4.0.3        [required by mdx]
  - install   re            1.14.0       [required by mdx]
  - install   result        1.5          [required by mdx]
  - install   uring         2.7.0        [required by eio_linux]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved astring.0.8.5  (https://opam.ocaml.org/cache)
-> retrieved camlp-streams.5.0.1  (https://opam.ocaml.org/cache)
-> retrieved cmdliner.2.1.0  (https://opam.ocaml.org/cache)
-> retrieved cstruct.6.2.0  (https://opam.ocaml.org/cache)
-> retrieved eio.0.12, eio_linux.0.12, eio_main.0.12, eio_posix.0.12  (https://opam.ocaml.org/cache)
-> installed camlp-streams.5.0.1
-> retrieved fmt.0.11.0  (https://opam.ocaml.org/cache)
-> retrieved iomux.0.4  (https://opam.ocaml.org/cache)
-> retrieved logs.0.10.0  (https://opam.ocaml.org/cache)
-> retrieved mdx.2.5.1  (https://opam.ocaml.org/cache)
-> retrieved ocaml-version.4.0.3  (https://opam.ocaml.org/cache)
-> retrieved re.1.14.0  (https://opam.ocaml.org/cache)
-> retrieved result.1.5  (https://opam.ocaml.org/cache)
-> installed iomux.0.4
-> installed ocaml-version.4.0.3
-> retrieved uring.2.7.0  (https://opam.ocaml.org/cache)
-> installed result.1.5
-> installed astring.0.8.5
-> installed re.1.14.0
-> removed   lwt_eio.0.5
-> removed   eio.1.3
-> removed   cstruct.6.2.0
-> removed   fmt.0.11.0
-> installed cmdliner.2.1.0
-> installed fmt.0.11.0
-> installed cstruct.6.2.0
-> installed logs.0.10.0
-> installed eio.0.12
-> installed uring.2.7.0
-> installed eio_posix.0.12
-> installed eio_linux.0.12
-> installed mdx.2.5.1
-> installed eio_main.0.12
[ERROR] The compilation of lwt_eio.0.5 failed at "dune build -p lwt_eio -j 71 @install @runtest".

#=== ERROR while compiling lwt_eio.0.5 ========================================#
# context              2.5.0 | linux/x86_64 | ocaml-variants.5.4.0+options | pinned(https://github.com/ocaml-multicore/lwt_eio/releases/download/v0.5/lwt_eio-0.5.tbz)
# path                 ~/.opam/5.4/.opam-switch/build/lwt_eio.0.5
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p lwt_eio -j 71 @install @runtest
# exit-code            1
# env-file             ~/.opam/log/lwt_eio-7-447537.env
# output-file          ~/.opam/log/lwt_eio-7-447537.out
### output ###
# File "test/test.md", line 1, characters 0-0:
# /usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/test.md _build/default/test/.mdx/test.md.corrected
# diff --git a/_build/default/test/test.md b/_build/default/test/.mdx/test.md.corrected
# index 7a9272f..ac6774e 100644
# --- a/_build/default/test/test.md
# +++ b/_build/default/test/.mdx/test.md.corrected
# @@ -41,20 +41,20 @@ Lwt and Eio fibers don't block each other:
#      );;
#  +eio: i = 1
#  +  lwt: i = 1
# -+  lwt: i = 2
#  +eio: i = 2
# -+  lwt: i = 3
# ++  lwt: i = 2
#  +eio: i = 3
# -+  lwt: i = 4
# ++  lwt: i = 3
#  +eio: i = 4
# -+  lwt: i = 5
# ++  lwt: i = 4
#  +eio: i = 5
# -+  lwt: i = 6
# ++  lwt: i = 5
#  +eio: i = 6
# -+  lwt: i = 7
# ++  lwt: i = 6
#  +eio: i = 7
# -+  lwt: i = 8
# ++  lwt: i = 7
#  +eio: i = 8
# ++  lwt: i = 8
#  - : unit = ()
#  ```
#  



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build lwt_eio 0.5
+- 
+- The following changes have been performed
| - remove    lwt_eio       0.5
| - downgrade eio           1.3 to 0.12
| - recompile cstruct       6.2.0
| - recompile fmt           0.11.0
| - install   astring       0.8.5
| - install   camlp-streams 5.0.1
| - install   cmdliner      2.1.0
| - install   eio_linux     0.12
| - install   eio_main      0.12
| - install   eio_posix     0.12
| - install   iomux         0.4
| - install   logs          0.10.0
| - install   mdx           2.5.1
| - install   ocaml-version 4.0.3
| - install   re            1.14.0
| - install   result        1.5
| - install   uring         2.7.0
+- 
# 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/5.4/.opam-switch/backup/state-20260310101954.export"
Or you can retry to install your package selection with:
    /usr/bin/opam install --restore
2026-03-10 10:20.16 ---> saved as "cf7e3a37e4c62d3ecc51dea59a2e492b422263eb57fc8848406a0d63e1bd42c4"

/home/opam: (run (shell  "opam reinstall --with-test --verbose lwt_eio.0.5;\
                        \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 \"$pkg\" != 'lwt_eio.0.5' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
lwt_eio.0.5 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 1 package
  - install lwt_eio 0.5 (pinned)

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  2/3: [lwt_eio: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "lwt_eio" "-j" "71" "@install" "@runtest" (CWD=/home/opam/.opam/5.4/.opam-switch/build/lwt_eio.0.5)
- File "test/test.md", line 1, characters 0-0:
- /usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/test.md _build/default/test/.mdx/test.md.corrected
- diff --git a/_build/default/test/test.md b/_build/default/test/.mdx/test.md.corrected
- index 7a9272f..ac6774e 100644
- --- a/_build/default/test/test.md
- +++ b/_build/default/test/.mdx/test.md.corrected
- @@ -41,20 +41,20 @@ Lwt and Eio fibers don't block each other:
-      );;
-  +eio: i = 1
-  +  lwt: i = 1
- -+  lwt: i = 2
-  +eio: i = 2
- -+  lwt: i = 3
- ++  lwt: i = 2
-  +eio: i = 3
- -+  lwt: i = 4
- ++  lwt: i = 3
-  +eio: i = 4
- -+  lwt: i = 5
- ++  lwt: i = 4
-  +eio: i = 5
- -+  lwt: i = 6
- ++  lwt: i = 5
-  +eio: i = 6
- -+  lwt: i = 7
- ++  lwt: i = 6
-  +eio: i = 7
- -+  lwt: i = 8
- ++  lwt: i = 7
-  +eio: i = 8
- ++  lwt: i = 8
-  - : unit = ()
-  ```
-  
[ERROR] The compilation of lwt_eio.0.5 failed at "dune build -p lwt_eio -j 71 @install @runtest".

#=== ERROR while compiling lwt_eio.0.5 ========================================#
# context              2.5.0 | linux/x86_64 | ocaml-variants.5.4.0+options | pinned(https://github.com/ocaml-multicore/lwt_eio/releases/download/v0.5/lwt_eio-0.5.tbz)
# path                 ~/.opam/5.4/.opam-switch/build/lwt_eio.0.5
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p lwt_eio -j 71 @install @runtest
# exit-code            1
# env-file             ~/.opam/log/lwt_eio-7-9f6c4b.env
# output-file          ~/.opam/log/lwt_eio-7-9f6c4b.out
### output ###
# File "test/test.md", line 1, characters 0-0:
# /usr/bin/git --no-pager diff --no-index --color=always -u _build/default/test/test.md _build/default/test/.mdx/test.md.corrected
# diff --git a/_build/default/test/test.md b/_build/default/test/.mdx/test.md.corrected
# index 7a9272f..ac6774e 100644
# --- a/_build/default/test/test.md
# +++ b/_build/default/test/.mdx/test.md.corrected
# @@ -41,20 +41,20 @@ Lwt and Eio fibers don't block each other:
#      );;
#  +eio: i = 1
#  +  lwt: i = 1
# -+  lwt: i = 2
#  +eio: i = 2
# -+  lwt: i = 3
# ++  lwt: i = 2
#  +eio: i = 3
# -+  lwt: i = 4
# ++  lwt: i = 3
#  +eio: i = 4
# -+  lwt: i = 5
# ++  lwt: i = 4
#  +eio: i = 5
# -+  lwt: i = 6
# ++  lwt: i = 5
#  +eio: i = 6
# -+  lwt: i = 7
# ++  lwt: i = 6
#  +eio: i = 7
# -+  lwt: i = 8
# ++  lwt: i = 7
#  +eio: i = 8
# ++  lwt: i = 8
#  - : unit = ()
#  ```
#  



<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - build lwt_eio 0.5
+- 
- No changes have been performed
# To update the current shell environment, run: eval $(opam env)
'opam reinstall --with-test --verbose lwt_eio.0.5' failed.
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
[WARNING] OPAMCONFIRMLEVEL was ignored because CLI 2.0 was requested and it was introduced in 2.1.
"/usr/bin/env" "bash" "-c" "opam reinstall --with-test --verbose lwt_eio.0.5;
        res=$?;
        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 "$pkg" != 'lwt_eio.0.5' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 1
2026-03-10 10:20.31: Job failed: Failed: Build failed
2026-03-10 10:20.31: Log analysis:
2026-03-10 10:20.31: >>> 
[ERROR] The compilation of lwt_eio.0.5 failed at "dune build -p lwt_eio -j 71 @install @runtest".
 (score = 20)
2026-03-10 10:20.31: >>> 
[ERROR] The compilation of lwt_eio.0.5 failed at "dune build -p lwt_eio -j 71 @install @runtest".
 (score = 20)
2026-03-10 10:20.31: The compilation of lwt_eio.0.5 failed at "dune build -p lwt_eio -j 71 @install @runtest".