2024-03-14 14:44.53: New job: Build using linux-x86_64 in
                                [https://github.com/mirage/mirage-skeleton.git#refs/pull/387/head (4d09dfb1525be730ea77c98a7d28dd6002e2a2ba)]

OBuilder spec:

((from ocaml/opam:debian-10-ocaml-4.13)
 (user (uid 1000) (gid 1000))
 (workdir /home/opam)
 (run (shell "sudo chown opam:opam /home/opam"))
 (run (shell "sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam && opam update"))
 (run (network host)
      (shell "opam repo add opam https://github.com/ocaml/opam-repository.git#8022bb153384c97b8756fa6718f7d96ecc818216"))
 (run (network host)
      (shell "opam repo add mirage-dev https://github.com/mirage/mirage-dev.git#749c02302f8f15e609332edbe827541558554a80"))
 (run (network host)
      (shell "opam pin -ny https://github.com/mirage/mirage.git#aab0242747d9789bbfec25b7fd8597a53e88c04c"))
 (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 unix)
 (workdir /src/)
 (run (shell "opam exec -- make configure"))
 (env MIRAGE_EXTRA_REPOS opam-overlays:https://github.com/dune-universe/opam-overlays.git#4e75ee36715b27550d5bdb87686bb4ae4c9e89c4,mirage-opam-overlays:https://github.com/dune-universe/mirage-opam-overlays.git#05f1c1823d891ce4d8adab91f5db3ac51d86dc0b)
 (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"))
)

2024-03-14 14:44.53: Using cache hint "mirage-ci-skeleton-debian-10-ocaml-4.13"
2024-03-14 14:44.53: Waiting for resource in pool OCluster
2024-03-14 14:44.53: Waiting for worker…
2024-03-14 14:44.53: Got resource from pool OCluster
Building on x86-bm-c4.sw.ocaml.org
All commits already cached
HEAD is now at 4d09dfb Adapt to upstream changes

(from ocaml/opam:debian-10-ocaml-4.13)
Unable to find image 'ocaml/opam:debian-10-ocaml-4.13' locally
debian-10-ocaml-4.13: Pulling from ocaml/opam
13ebc16e6aeb: Pulling fs layer
13ebc16e6aeb: Verifying Checksum
13ebc16e6aeb: Download complete
13ebc16e6aeb: Pull complete
Digest: sha256:e7fe4085917874c42b88eeb89cba71fdd76c92a7723fe8248a53c544e7511aec
Status: Downloaded newer image for ocaml/opam:debian-10-ocaml-4.13
2024-03-14 14:44.53 ---> using "cbba9511e46ef57631453d5b88aeed1ed6de6fa87b6f0dcb3da9328657d73fa4" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo chown opam:opam /home/opam"))
2024-03-14 14:44.53 ---> using "54342da51d0603a14f6ba9989f4252ffa31f1ca13e80c1d45d63e53fc9e80646" from cache

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.1 /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 2.1, 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] synchronised from file:///home/opam/opam-repository
2024-03-14 14:44.53 ---> using "3ddb42a6e856d7c2c5e614451b958647e474c5a4c98a94c3cc6a5e11dd914645" from cache

/home/opam: (run (network host)
                 (shell "opam repo add opam https://github.com/ocaml/opam-repository.git#8022bb153384c97b8756fa6718f7d96ecc818216"))
[opam] Initialised
[NOTE] Repository opam has been added to the selections of switch 4.13 only.
       Run `opam repository add opam --all-switches|--set-default' to use it in all existing switches, or in newly created switches, respectively.

2024-03-14 14:44.53 ---> using "a6249ded6099b71e285394ee25b61cbc94c3b924bab2e5cea8ee43708f597666" from cache

/home/opam: (run (network host)
                 (shell "opam repo add mirage-dev https://github.com/mirage/mirage-dev.git#749c02302f8f15e609332edbe827541558554a80"))
[mirage-dev] Initialised
[NOTE] Repository mirage-dev has been added to the selections of switch 4.13 only.
       Run `opam repository add mirage-dev --all-switches|--set-default' to use it in all existing switches, or in newly created switches, respectively.

2024-03-14 14:44.53 ---> using "3c5041370b8b49cfe53cbb5ab7fc73b1d0943b8085c0216c27a9fdb31a5f852f" from cache

/home/opam: (run (network host)
                 (shell "opam pin -ny https://github.com/mirage/mirage.git#aab0242747d9789bbfec25b7fd8597a53e88c04c"))
This will pin the following packages: mirage-runtime, mirage. Continue? [Y/n] y
mirage-runtime is now pinned to git+https://github.com/mirage/mirage.git#aab0242747d9789bbfec25b7fd8597a53e88c04c (version 4.4.2)
mirage is now pinned to git+https://github.com/mirage/mirage.git#aab0242747d9789bbfec25b7fd8597a53e88c04c (version 4.4.2)
2024-03-14 14:45.00 ---> saved as "257eb4c87acedcde8fa1c338fbdc124f717c792a25151ab88af27d9f0b253682"

/home/opam: (run (cache (download-cache (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell "sudo apt-get update && opam install -y \"mirage>=4\""))
Hit:1 http://deb.debian.org/debian buster InRelease
Get:2 http://deb.debian.org/debian-security buster/updates InRelease [34.8 kB]
Hit:3 http://deb.debian.org/debian buster-updates InRelease
Get:4 http://deb.debian.org/debian-security buster/updates/main amd64 Packages [589 kB]
Fetched 624 kB in 1s (1211 kB/s)
Reading package lists...

<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[mirage.4.4.2] synchronised (no changes)