2022-04-16 12:05.34: New job: Build using linux-arm64 in
                                [https://github.com/mirage/mirage-skeleton.git#refs/heads/main (144d68992a284730c383eb3d39c409a061bc452e)]

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#0d3c2ef65372f58cae5fc7cf49915c137ff7c627"))
 (run (network host)
      (shell "opam repo add mirage-dev https://github.com/mirage/mirage-dev.git#842c55556ffd0950d21141d6ab99e52a8d88a50f"))
 (run (cache (download-cache (target /home/opam/.opam/download-cache)))
      (network host)
      (shell "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#4edade942fdd8d37cfcd01ad719e4c237c6525b2,mirage-opam-overlays:https://github.com/dune-universe/mirage-opam-overlays.git#a59e36702822c31e662b242c6d056a31533590e6)
 (run (network host)
      (shell "opam exec -- make lock"))
 (run (cache (download-cache (target /home/opam/.opam/download-cache)))
      (network host)
      (shell "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"))
)

2022-04-16 12:05.34: Using cache hint "mirage-ci-skeleton-debian-10-ocaml-4.13"
2022-04-16 12:05.34: Waiting for resource in pool OCluster
2022-04-16 12:05.34: Waiting for worker...
2022-04-16 12:05.43: Got resource from pool OCluster
Building on arm64-jade-1.ocamllabs.io
All commits already cached
HEAD is now at 144d689 Merge pull request #336 from samoht/warnings

(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
Digest: sha256:6180cb1254691eda8b11431b8a15b008b93fd8721d56750534247d411a0d5936
Status: Downloaded newer image for ocaml/opam:debian-10-ocaml-4.13
2022-04-16 12:05.44 ---> using "cbba9511e46ef57631453d5b88aeed1ed6de6fa87b6f0dcb3da9328657d73fa4" from cache

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

/: (workdir /home/opam)

/home/opam: (run (shell "sudo chown opam:opam /home/opam"))
2022-04-16 12:05.44 ---> using "0afede13af6ea6d75cbfcfb80353059bc4fd4eea40a723ef627f0c4946f2e079" from cache

/home/opam: (run (shell "sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam && opam update"))
This development 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
2022-04-16 12:05.44 ---> using "88933084999984163bc104ca2978b0ba2b9c83ff33e4e30c3b6dae7cb5cde9bc" from cache

/home/opam: (run (network host)
                 (shell "opam repo add opam https://github.com/ocaml/opam-repository.git#0d3c2ef65372f58cae5fc7cf49915c137ff7c627"))
[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.

2022-04-16 12:06.10 ---> saved as "bc5e29fac06ecec20453dbbfacf59c727d758670d86b4638adad7e4782829e07"

/home/opam: (run (network host)
                 (shell "opam repo add mirage-dev https://github.com/mirage/mirage-dev.git#842c55556ffd0950d21141d6ab99e52a8d88a50f"))
[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.

2022-04-16 12:06.12 ---> saved as "5164a91fad1db9e2263f4b45fda43313858cd64aa1b12e0a75cdc3e857e57011"

/home/opam: (run (cache (download-cache (target /home/opam/.opam/download-cache)))
                 (network host)
                 (shell "opam install -y \"mirage>=4\""))
The following actions will be performed:
  - install seq                base   [required by lwt]
  - install dune               3.0.3  [required by mirage]
  - install ocamlbuild         0.14.1 [required by astring, bos]
  - install cmdliner           1.1.1  [required by functoria]
  - install conf-pkg-config    2      [required by opam-monorepo]
  - install ocamlfind          1.9.3  [required by astring, bos]
  - install stdlib-shims       0.3.0  [required by ipaddr]
  - install result             1.5    [required by functoria]
  - install pecu               0.6    [required by emile]
  - install ocaml-syntax-shims 1.0.0  [required by lwt, angstrom]
  - install macaddr            5.3.0  [required by ipaddr]
  - install domain-name        0.4.0  [required by ipaddr]
  - install csexp              1.5.1  [required by dune-configurator]
  - install cppo               1.6.8  [required by lwt]
  - install bigarray-compat    1.1.0  [required by mmap]
  - install base64             3.5.0  [required by emile]
  - install opam-monorepo      0.2.7  [required by mirage]
  - install bigstringaf        0.9.0  [required by emile]
  - install topkg              1.0.5  [required by astring, bos]
  - install base-bytes         base   [required by stringext]
  - install ipaddr             5.3.0  [required by mirage]
  - install dune-configurator  3.0.3  [required by lwt]
  - install mmap               1.2.0  [required by lwt]
  - install angstrom           0.15.0 [required by emile, uri]
  - install uutf               1.0.3  [required by emile]
  - install rresult            0.7.0  [required by bos, functoria]
  - install fmt                0.9.0  [required by functoria, bos, mirage-runtime]
  - install astring            0.8.5  [required by mirage]
  - install stringext          1.6.0  [required by uri]
  - install ocplib-endian      1.2    [required by lwt]
  - install emile              1.1    [required by functoria]
  - install functoria-runtime  4.0.0  [required by mirage-runtime]
  - install fpath              0.7.3  [required by bos, functoria]
  - install uri                4.2.0  [required by functoria]
  - install lwt                5.5.0  [required by mirage-runtime]
  - install logs               0.7.0  [required by mirage]
  - install mirage-runtime     4.0.0  [required by mirage]
  - install bos                0.2.1  [required by mirage]
  - install functoria          4.0.0  [required by mirage]
  - install mirage             4.0.0
===== 40 to install =====

The following system packages will first need to be installed:
    pkg-config

<><> Handling external dependencies <><><><><><><><><><><><><><><><><><><><><><>
Let opam run your package manager to install the required system packages?
(answer 'n' for other options) [Y/n] y
+ /usr/bin/sudo "apt-get" "install" "-qq" "-yy" "pkg-config"
- E: Failed to fetch http://deb.debian.org/debian/pool/main/libx/libxml2/libxml2_2.9.4+dfsg1-7+deb10u2_arm64.deb  404  Not Found [IP: 2a04:4e42:c::644 80]
- E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
You can retry with '--assume-depexts' to skip this check, or run 'opam option depext=false' to permanently disable handling of system packages altogether.
[ERROR] System package install failed with exit code 100 at command:
            sudo apt-get install -qq -yy pkg-config
"/bin/bash" "-c" "opam install -y "mirage>=4"" failed with exit status 10

2022-04-16 12:06.26: Job failed: Failed: Build failed