(not at the head of any monitored branch or PR)
2025-05-26 08:50.10: New job: build ocaml-unikraft-backend-qemu.0.18.0, using opam 2.3
                              from https://github.com/ocaml/opam-repository.git#refs/pull/27856/head (22a2fc72dc111f64fe5bf0454944f8d87081eada)
                              on debian-12-ocaml-4.09/amd64

To reproduce locally:

cd $(mktemp -d)
git clone --recursive "https://github.com/ocaml/opam-repository.git" && cd "opam-repository" && git fetch origin "refs/pull/27856/head" && git reset --hard 22a2fc72
git fetch origin master
git merge --no-edit 584630e7a7e27e3cf56158696a3fe94623a0cf4f
cat > ../Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:debian-12-ocaml-4.09@sha256:81e9e6c599a12c354695646312093cdc0c1857dc78b7ac087ca0313fe4f38749
USER 1000:1000
WORKDIR /home/opam
RUN sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam
RUN opam init --reinit -ni
RUN opam option solver=builtin-0install && opam config report
ENV OPAMDOWNLOADJOBS="1"
ENV OPAMERRLOGLEN="0"
ENV OPAMPRECISETRACKING="1"
ENV CI="true"
ENV OPAM_REPO_CI="true"
RUN rm -rf opam-repository/
COPY --chown=1000:1000 . opam-repository/
RUN opam repository set-url --strict default opam-repository/
RUN opam update --depexts || true
RUN opam pin add -k version -yn ocaml-unikraft-backend-qemu.0.18.0 0.18.0
RUN opam reinstall ocaml-unikraft-backend-qemu.0.18.0; \
    res=$?; \
    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-12\""; then \
    echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field."; \
    fi; \
    test "$pkg" != 'ocaml-unikraft-backend-qemu.0.18.0' && partial_fails="$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 .

2025-05-26 08:50.10: Using cache hint "ocaml/opam:debian-12-ocaml-4.09@sha256:81e9e6c599a12c354695646312093cdc0c1857dc78b7ac087ca0313fe4f38749-ocaml-unikraft-backend-qemu.0.18.0-22a2fc72dc111f64fe5bf0454944f8d87081eada"
2025-05-26 08:50.10: Using OBuilder spec:
((from ocaml/opam:debian-12-ocaml-4.09@sha256:81e9e6c599a12c354695646312093cdc0c1857dc78b7ac087ca0313fe4f38749)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo ln -f /usr/bin/opam-2.3 /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 ocaml-unikraft-backend-qemu.0.18.0 0.18.0"))
 (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
      (network host)
      (shell  "opam reinstall ocaml-unikraft-backend-qemu.0.18.0;\
             \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-12\\\"\"; then\
             \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
             \n          fi;\
             \n          test \"$pkg\" != 'ocaml-unikraft-backend-qemu.0.18.0' && partial_fails=\"$partial_fails $pkg\";\
             \n        done;\
             \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
             \n        exit 1"))
)

2025-05-26 08:50.10: Waiting for resource in pool OCluster
2025-05-26 08:50.13: Waiting for worker…
2025-05-26 08:50.13: Got resource from pool OCluster
Building on x86-bm-c1.sw.ocaml.org
All commits already cached
Updating files:  60% (13882/23121)
Updating files:  61% (14104/23121)
Updating files:  62% (14336/23121)
Updating files:  63% (14567/23121)
Updating files:  64% (14798/23121)
Updating files:  65% (15029/23121)
Updating files:  66% (15260/23121)
Updating files:  67% (15492/23121)
Updating files:  68% (15723/23121)
Updating files:  69% (15954/23121)
Updating files:  70% (16185/23121)
Updating files:  71% (16416/23121)
Updating files:  72% (16648/23121)
Updating files:  73% (16879/23121)
Updating files:  74% (17110/23121)
Updating files:  75% (17341/23121)
Updating files:  76% (17572/23121)
Updating files:  77% (17804/23121)
Updating files:  78% (18035/23121)
Updating files:  79% (18266/23121)
Updating files:  80% (18497/23121)
Updating files:  81% (18729/23121)
Updating files:  82% (18960/23121)
Updating files:  83% (19191/23121)
Updating files:  84% (19422/23121)
Updating files:  85% (19653/23121)
Updating files:  86% (19885/23121)
Updating files:  87% (20116/23121)
Updating files:  88% (20347/23121)
Updating files:  89% (20578/23121)
Updating files:  90% (20809/23121)
Updating files:  91% (21041/23121)
Updating files:  92% (21272/23121)
Updating files:  93% (21503/23121)
Updating files:  94% (21734/23121)
Updating files:  95% (21965/23121)
Updating files:  96% (22197/23121)
Updating files:  97% (22428/23121)
Updating files:  98% (22659/23121)
Updating files:  99% (22890/23121)
Updating files: 100% (23121/23121)
Updating files: 100% (23121/23121), done.
HEAD is now at 584630e7a7 Merge pull request #27919 from hannesm/release-dns-v10.1.0
Merge made by the 'ort' strategy.
 .../conf-aarch64-linux-gnu-gcc.1/opam              | 22 ++++++++++++
 .../conf-x86_64-linux-gnu-gcc.1/opam               | 22 ++++++++++++
 .../ocaml-unikraft-arm64.1.0.0/opam                | 42 ++++++++++++++++++++++
 .../opam                                           | 39 ++++++++++++++++++++
 .../opam                                           | 39 ++++++++++++++++++++
 .../ocaml-unikraft-backend-firecracker.0.18.0/opam | 19 ++++++++++
 .../ocaml-unikraft-backend-qemu-arm64.0.18.0/opam  | 39 ++++++++++++++++++++
 .../ocaml-unikraft-backend-qemu-x86_64.0.18.0/opam | 39 ++++++++++++++++++++
 .../ocaml-unikraft-backend-qemu.0.18.0/opam        | 19 ++++++++++
 .../ocaml-unikraft-default-arm64.1.0.0/opam        | 25 +++++++++++++
 .../ocaml-unikraft-default-x86_64.1.0.0/opam       | 25 +++++++++++++
 .../ocaml-unikraft-option-debug.0.18.0/opam        | 12 +++++++
 .../ocaml-unikraft-toolchain-arm64.0.18.0/opam     | 33 +++++++++++++++++
 .../ocaml-unikraft-toolchain-x86_64.0.18.0/opam    | 33 +++++++++++++++++
 .../ocaml-unikraft-x86_64.1.0.0/opam               | 42 ++++++++++++++++++++++
 packages/ocaml-unikraft/ocaml-unikraft.1.0.0/opam  | 15 ++++++++
 packages/unikraft-musl/unikraft-musl.0.18.0/opam   | 26 ++++++++++++++
 packages/unikraft/unikraft.0.18.0/opam             | 30 ++++++++++++++++
 18 files changed, 521 insertions(+)
 create mode 100644 packages/conf-aarch64-linux-gnu-gcc/conf-aarch64-linux-gnu-gcc.1/opam
 create mode 100644 packages/conf-x86_64-linux-gnu-gcc/conf-x86_64-linux-gnu-gcc.1/opam
 create mode 100644 packages/ocaml-unikraft-arm64/ocaml-unikraft-arm64.1.0.0/opam
 create mode 100644 packages/ocaml-unikraft-backend-firecracker-arm64/ocaml-unikraft-backend-firecracker-arm64.0.18.0/opam
 create mode 100644 packages/ocaml-unikraft-backend-firecracker-x86_64/ocaml-unikraft-backend-firecracker-x86_64.0.18.0/opam
 create mode 100644 packages/ocaml-unikraft-backend-firecracker/ocaml-unikraft-backend-firecracker.0.18.0/opam
 create mode 100644 packages/ocaml-unikraft-backend-qemu-arm64/ocaml-unikraft-backend-qemu-arm64.0.18.0/opam
 create mode 100644 packages/ocaml-unikraft-backend-qemu-x86_64/ocaml-unikraft-backend-qemu-x86_64.0.18.0/opam
 create mode 100644 packages/ocaml-unikraft-backend-qemu/ocaml-unikraft-backend-qemu.0.18.0/opam
 create mode 100644 packages/ocaml-unikraft-default-arm64/ocaml-unikraft-default-arm64.1.0.0/opam
 create mode 100644 packages/ocaml-unikraft-default-x86_64/ocaml-unikraft-default-x86_64.1.0.0/opam
 create mode 100644 packages/ocaml-unikraft-option-debug/ocaml-unikraft-option-debug.0.18.0/opam
 create mode 100644 packages/ocaml-unikraft-toolchain-arm64/ocaml-unikraft-toolchain-arm64.0.18.0/opam
 create mode 100644 packages/ocaml-unikraft-toolchain-x86_64/ocaml-unikraft-toolchain-x86_64.0.18.0/opam
 create mode 100644 packages/ocaml-unikraft-x86_64/ocaml-unikraft-x86_64.1.0.0/opam
 create mode 100644 packages/ocaml-unikraft/ocaml-unikraft.1.0.0/opam
 create mode 100644 packages/unikraft-musl/unikraft-musl.0.18.0/opam
 create mode 100644 packages/unikraft/unikraft.0.18.0/opam

(from ocaml/opam:debian-12-ocaml-4.09@sha256:81e9e6c599a12c354695646312093cdc0c1857dc78b7ac087ca0313fe4f38749)
2025-05-26 08:50.36 ---> using "79705d1d795dc87c1ae72c789f25bfc3d0f4d3495628c23a6769a42182d54409" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam"))
2025-05-26 08:50.36 ---> using "46c7796f730cff60bdeb38a41646fb1cdb54eaff598b15177a1bda7deaebb415" 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 development 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
2025-05-26 08:50.36 ---> using "8200663d2db5290dc4f316dd6b4540d3ac1e903f54da090cfaba8aa3633e3ad2" 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         2.3.0 (35acd0c5abc5e66cdbd5be16ba77aa6c33a4c724)
# self-upgrade         no
# system               arch=x86_64 os=linux os-distribution=debian os-version=12
# solver               builtin-0install
# install-criteria     -changed,-count[avoid-version,solution]
# upgrade-criteria     -count[avoid-version,solution]
# jobs                 39
# repositories         1 (version-controlled)
# pinned               1 (version)
# current-switch       4.09
# invariant            ["ocaml-base-compiler" {= "4.09.1"}]
# compiler-packages    ocaml-base-compiler.4.09.1
# ocaml:native         true
# ocaml:native-tools   true
# ocaml:native-dynlink true
# ocaml:stubsdir       /home/opam/.opam/4.09/lib/ocaml/stublibs:/home/opam/.opam/4.09/lib/ocaml
# ocaml:preinstalled   false
# ocaml:compiler       4.09.1
2025-05-26 08:50.36 ---> using "30bb5299250d2bcec0b86627501cc3b7b1eff72571c244a9cd967958b3db8c0f" 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/"))
2025-05-26 08:50.36 ---> using "1021081a9e56ef833b60f4736ec6c3b8497421e04b0b0ead68acb63a7c4e40ec" from cache

/home/opam: (copy (src .) (dst opam-repository/))
2025-05-26 08:50.37 ---> using "ca5ab61d8a86393fbaed8454b8c77de21e31fd44ffb12f64db445d36f9720ad1" from cache

/home/opam: (run (shell "opam repository set-url --strict default opam-repository/"))
[default] Initialised
2025-05-26 08:50.55 ---> saved as "1791b9e55c8a3dfd91d7469b4f4a4dabc68d39f215b82a6c34f770d39f5a5b5e"

/home/opam: (run (network host)
                 (shell "opam update --depexts || true"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian bookworm InRelease [151 kB]
- Get:2 http://deb.debian.org/debian bookworm-updates InRelease [55.4 kB]
- Get:3 http://deb.debian.org/debian-security bookworm-security InRelease [48.0 kB]
- Get:4 http://deb.debian.org/debian bookworm/main amd64 Packages [8793 kB]
- Get:5 http://deb.debian.org/debian-security bookworm-security/main amd64 Packages [261 kB]
- Fetched 9308 kB in 1s (7443 kB/s)
- Reading package lists...
2025-05-26 08:50.57 ---> saved as "5041dc21a911851d44fc52e4f07d312d3e587cbd3ef0ce960654b42954f48c08"

/home/opam: (run (shell "opam pin add -k version -yn ocaml-unikraft-backend-qemu.0.18.0 0.18.0"))
ocaml-unikraft-backend-qemu is now pinned to version 0.18.0
2025-05-26 08:50.59 ---> saved as "b0640b54b75b31f30703e1882b99f4e4ed1841372f267f95f77109deb29cbe54"

/home/opam: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell  "opam reinstall ocaml-unikraft-backend-qemu.0.18.0;\
                        \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-12\\\"\"; then\
                        \n            echo \"A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\";\
                        \n          fi;\
                        \n          test \"$pkg\" != 'ocaml-unikraft-backend-qemu.0.18.0' && partial_fails=\"$partial_fails $pkg\";\
                        \n        done;\
                        \n        test \"${partial_fails}\" != \"\" && echo \"opam-repo-ci detected dependencies failing: ${partial_fails}\";\
                        \n        exit 1"))
ocaml-unikraft-backend-qemu.0.18.0 is not installed. Install it? [y/n] y
  * Incompatible packages:
    - (invariant) -> ocaml-base-compiler = 4.09.1
    - ocaml-unikraft-backend-qemu -> ocaml-unikraft-default-arm64 -> ocaml-unikraft-arm64 -> ocaml = 5.3.0 -> ocaml-variants < 5.3.1~
    You can temporarily relax the switch invariant with `--update-invariant'
  * Missing dependency:
    - ocaml-unikraft-backend-qemu -> ocaml-unikraft-default-arm64 -> ocaml-unikraft-arm64 -> ocaml = 5.3.0 -> ocaml-variants < 5.3.1~ -> xenbigarray
    unknown package
  * Missing dependency:
    - ocaml-unikraft-backend-qemu -> ocaml-unikraft-default-arm64 -> ocaml-unikraft-arm64 -> ocaml = 5.3.0 -> ocaml-variants < 5.3.1~ -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
  * Missing dependency:
    - ocaml-unikraft-backend-qemu -> ocaml-unikraft-default-arm64 -> ocaml-unikraft-arm64 -> ocaml = 5.3.0 -> ocaml-variants < 5.3.1~ -> system-msvc
    unmet availability conditions: 'os = "win32"'

No solution found, exiting
"/usr/bin/env" "bash" "-c" "opam reinstall ocaml-unikraft-backend-qemu.0.18.0;
        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-12\""; then
            echo "A package failed and has been disabled for CI using the 'x-ci-accept-failures' field.";
          fi;
          test "$pkg" != 'ocaml-unikraft-backend-qemu.0.18.0' && partial_fails="$partial_fails $pkg";
        done;
        test "${partial_fails}" != "" && echo "opam-repo-ci detected dependencies failing: ${partial_fails}";
        exit 1" failed with exit status 20
2025-05-26 08:51.17: Job failed: Failed: Build failed
2025-05-26 08:51.17: Log analysis:
2025-05-26 08:51.17: >>> 
No solution found, exiting
 (score = 100)
2025-05-26 08:51.17: [SKIP] Package not available