Building on x86-bm-14.ocamllabs.io (from ocaml/opam:debian-unstable) 2021-12-03 11:11.31 ---> using "0acd5aeaa8f7bc314514d9795d14a7f12ec72a6a5b11c5904350189734c6859b" from cache /: (user (uid 1000) (gid 1000)) /: (env OPAMPRECISETRACKING 1) /: (env OPAMUTF8 never) /: (env OPAMEXTERNALSOLVER builtin-0install) /: (env OPAMCRITERIA +removed) /: (run (shell "sudo ln -f /usr/bin/opam-2.1 /usr/bin/opam")) 2021-12-03 11:11.31 ---> using "4d29eb3e0b7cd69a97ed90837671d5ca38aa41e2fb94346298af500378eca6fa" from cache /: (run (network host) (shell "rm -rf ~/opam-repository && git clone -q 'https://github.com/ocaml/opam-repository' ~/opam-repository && git -C ~/opam-repository checkout -q b1ed080260d9fb3332ffd1ed74a70b40f8d46d66")) 2021-12-03 11:11.31 ---> using "470a5139cd314c308ef6f8a7115ce3eecbef27ce3b36ad57c590d49c448a8f62" from cache /: (run (shell "rm -rf ~/.opam && opam init -ya --bare --config ~/.opamrc-sandbox ~/opam-repository")) 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. <><> Fetching repository information ><><><><><><><><><><><><><><><><><><><><><> [default] Initialised User configuration: ~/.profile is already up-to-date. [NOTE] Make sure that ~/.profile is well sourced in your ~/.bashrc. 2021-12-03 11:11.31 ---> using "6ff696b0fce120bd80d73dc055775d9b6cd971171da508a2aeef8fc7d75ea210" from cache /: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam switch create --repositories=default '4.07' '4.07.1'")) <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><> Switch invariant: ["ocaml-base-compiler" {= "4.07.1"} | "ocaml-system" {= "4.07.1"}] <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> installed base-bigarray.base -> installed base-threads.base -> installed base-unix.base -> retrieved ocaml-base-compiler.4.07.1 (cached) -> installed ocaml-base-compiler.4.07.1 -> installed ocaml-config.1 -> installed ocaml.4.07.1 Done. # Run eval $(opam env --switch=4.07) to update the current shell environment 2021-12-03 11:11.31 ---> using "3afb5404ae09d2841819cd17dab59e97185742839552ff52020b13b665cdc3a5" from cache /: (run (network host) (shell "opam update --depexts")) + /usr/bin/sudo "apt-get" "update" - Get:1 http://deb.debian.org/debian unstable InRelease [165 kB] - Get:2 http://deb.debian.org/debian unstable/main amd64 Packages.diff/Index [63.6 kB] - Ign:2 http://deb.debian.org/debian unstable/main amd64 Packages.diff/Index - Get:3 http://deb.debian.org/debian unstable/main amd64 Packages [8877 kB] - Fetched 9106 kB in 2s (5256 kB/s) - Reading package lists... - 2021-12-03 11:11.31 ---> using "32564e97f825ed6ec6ada7da4efd7cfca7c24424c29fe8d7b73eae0473a2e225" from cache /: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam install -y ocaml-secondary-compiler")) The following actions will be performed: - install ocaml-secondary-compiler 4.08.1-1 <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> retrieved ocaml-secondary-compiler.4.08.1-1 (cached) -> installed ocaml-secondary-compiler.4.08.1-1 Done. # Run eval $(opam env) to update the current shell environment 2021-12-03 11:11.31 ---> using "86fd0fcc4dba11eb98df550f5c5ec313db708b15addb0dae7f393f19a16bdeb9" from cache /: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "\ \nopam remove -y \"irmin-mirage.2.9.0\"\ \nopam install -vy \"irmin-mirage.2.9.0\"\ \nres=$?\ \nif [ $res = 31 ]; then\ \n if opam show -f x-ci-accept-failures: \"irmin-mirage.2.9.0\" | grep -q '\"debian-unstable\"'; then\ \n echo \"This package failed and has been disabled for CI using the 'x-ci-accept-failures' field.\"\ \n exit 69\ \n fi\ \nfi\ \n\ \n\ \nexit $res\ \n")) [NOTE] irmin-mirage.2.9.0 is not installed. Nothing to do. [ERROR] Package conflict! * No agreement on the version of ocaml: - (invariant) -> ocaml-base-compiler = 4.07.1 -> ocaml = 4.07.1 - irmin-mirage >= 2.9.0 -> irmin >= 2.9.0 -> ocaml >= 4.08.0 You can temporarily relax the switch invariant with `--update-invariant' No solution found, exiting 'opam install -vy irmin-mirage.2.9.0' failed. "/bin/bash" "-c" " opam remove -y "irmin-mirage.2.9.0" opam install -vy "irmin-mirage.2.9.0" res=$? if [ $res = 31 ]; then if opam show -f x-ci-accept-failures: "irmin-mirage.2.9.0" | grep -q '"debian-unstable"'; then echo "This package failed and has been disabled for CI using the 'x-ci-accept-failures' field." exit 69 fi fi exit $res " failed with exit status 20 Failed: Build failed