2025-11-23 11:59.59: New job: Build using linux-x86_64 in
                                [https://github.com/mirage/mirage-skeleton.git#refs/heads/dev (53b7839a70657c31b9028b7f4bb19e0d64d9b482)]

OBuilder spec:

((from ocaml/opam:debian-13-ocaml-5.3)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo chown opam:opam /home/opam"))
 (run (shell "sudo ln -f /usr/bin/opam-2.4 /usr/bin/opam && opam update"))
 (run (network host)
      (shell "opam repo add opam https://github.com/ocaml/opam-repository.git#c9a5fb4e284eeac152de3d1602485315bf2697fb"))
 (run (network host)
      (shell "opam repo add mirage-dev https://github.com/mirage/mirage-dev.git#eb114ccf0dd4eeca6b4f06c5c7361c238eeca4fd"))
 (run (network host)
      (shell "opam pin -ny https://github.com/mirage/mirage.git#7167d9d88c57e88d3dacc69100779f526dce161e"))
 (run (cache (download-cache (target /home/opam/.opam/download-cache)))
      (network host)
      (shell "sudo apt-get update && opam install -y \"mirage>=4\""))
 (copy (src .) (dst /src/))
 (env MODE hvt)
 (workdir /src/)
 (run (shell "opam exec -- make configure"))
 (env MIRAGE_EXTRA_REPOS opam-overlays:https://github.com/dune-universe/opam-overlays.git#d5c12f6d5c7909e6119a82bc4aba682ac3110b2d,mirage-opam-overlays:https://github.com/dune-universe/mirage-opam-overlays.git#eddcd1bc7e035392596b603d23dde67a88e6f6bc)
 (run (network host)
      (shell "opam exec -- make lock"))
 (run (cache (download-cache (target /home/opam/.opam/download-cache)))
      (network host)
      (shell "sudo apt-get update && opam exec -- make depends"))
 (run (shell "opam monorepo list -l mirage.opam.locked"))
 (run (cache (download-cache (target /home/opam/.opam/download-cache)))
      (network host)
      (shell "opam exec -- make pull"))
 (env DUNE_CACHE enabled)
 (env DUNE_CACHE_TRANSPORT direct)
 (run (cache (dune-build-cache (target /home/opam/.cache/dune)))
      (network host)
      (shell "opam exec -- make build"))
)

2025-11-23 11:59.59: Using cache hint "mirage-ci-skeleton-debian-13-ocaml-5.3"
2025-11-23 11:59.59: Waiting for resource in pool OCluster
2025-11-23 11:59.59: Waiting for worker…
2025-11-23 11:59.59: Got resource from pool OCluster
Building on toxis.caelum.ci.dev
All commits already cached
HEAD is now at 53b7839 Merge pull request #415 from yomimono/reenable-littlefs-example

(from ocaml/opam:debian-13-ocaml-5.3)
Unable to find image 'ocaml/opam:debian-13-ocaml-5.3' locally
debian-13-ocaml-5.3: Pulling from ocaml/opam
13cc39f8244a: Already exists
9d7c1cac6af4: Already exists
979e6521bf84: Already exists
b129e961d700: Already exists
9288fc69cd29: Already exists
b232c90b1855: Already exists
658a78f60f44: Already exists
b3e6010fbc4c: Already exists
e75ac7b73fdb: Already exists
f1dbfc01d8b6: Already exists
42e8958c94a5: Already exists
1c77fd15fa4b: Already exists
f8ae0ec2765e: Already exists
87b5808a8709: Already exists
6551add7b2f4: Already exists
a050a941214a: Already exists
da6cadefa7ea: Already exists
0a3e89137cf8: Already exists
cc34154fc322: Already exists
eb7661180f3a: Already exists
faad806bf7c5: Already exists
4f4fb700ef54: Already exists
fe5692607199: Already exists
caa548e7f855: Already exists
8ad66e641b14: Already exists
b9d5d27dc0b6: Already exists
788961b65661: Already exists
9ed95272e11f: Already exists
82c1497059a3: Already exists
8abbeded2fb9: Already exists
1276181ef5dc: Already exists
0bd63c9342a5: Already exists
0294cf425d8c: Already exists
def43d8fc04c: Already exists
c87ed18f9ca6: Already exists
056f995b50a2: Already exists
c9f03af6c585: Already exists
4e0df0b17574: Already exists
1fcd55c53252: Already exists
9fe15f147c9c: Already exists
6aba0bde3b08: Already exists
eb47c999a07f: Already exists
c3b5761e8351: Already exists
ef2387459a2e: Pulling fs layer
52fb5b5ca795: Pulling fs layer
ba5654a3eabc: Pulling fs layer
30e1fd75db79: Pulling fs layer
30e1fd75db79: Waiting
ba5654a3eabc: Verifying Checksum
ba5654a3eabc: Download complete
52fb5b5ca795: Download complete
30e1fd75db79: Verifying Checksum
30e1fd75db79: Download complete
ef2387459a2e: Verifying Checksum
ef2387459a2e: Download complete
ef2387459a2e: Pull complete
52fb5b5ca795: Pull complete
ba5654a3eabc: Pull complete
30e1fd75db79: Pull complete
Digest: sha256:5861b7aec16907ed9fd3f60c755c3e6e7baf9474f1d94065d3c1767c75589dfb
Status: Downloaded newer image for ocaml/opam:debian-13-ocaml-5.3
2025-11-23 12:00.38 ---> saved as "348716d62ad55d1c2ba7493d00b0882cc64fc042d724a06a1599e8ba58d890e2"

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo chown opam:opam /home/opam"))
2025-11-23 12:00.38 ---> saved as "24883da7c3bfb9b4beffcac7267b86c1389006a753d78f6b386a3c4fd0e70458"

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.4 /usr/bin/opam && opam update"))
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 package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2025-11-23 12:01.00 ---> saved as "e0d08704d663585a0eeeaa1114187809c41cb285481ac9f5195ea2884586d4b3"

/home/opam: (run (network host)
                 (shell "opam repo add opam https://github.com/ocaml/opam-repository.git#c9a5fb4e284eeac152de3d1602485315bf2697fb"))
[ERROR] Could not update repository "opam": "/usr/bin/git fetch -q" exited with code 128 "fatal: unable to access 'https://github.com/ocaml/opam-repository.git/': Could not resolve host: github.com"
[ERROR] Initial repository fetch failed
"/usr/bin/env" "bash" "-c" "opam repo add opam https://github.com/ocaml/opam-repository.git#c9a5fb4e284eeac152de3d1602485315bf2697fb" failed with exit status 40
2025-11-23 12:01.04: Job failed: Failed: Build failed