Building on phoebe.ocamllabs.io (from ocaml/opam:debian-unstable@sha256:a20618cee40a09b4c7604919411db28c4ae473b9780730085f91824e8dd5f205) 2022-09-02 20:44.09 ---> using "00583e82ec888c922d57db664b8acb62b642829c5a4a94b17a44e5693b1db2de" 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-dev /usr/bin/opam")) 2022-09-02 20:44.09 ---> using "f816199fc982412d3ea70ae1ae1bab135eea82bc7670ac5d731bc57d0733e3c4" 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 418227c38ed4e28a0827786e5e9e50b9547c0b27")) 2022-09-02 20:44.09 ---> using "4cabcce7a0cb6de31986471b51abc9f1f3fec6a75be6e83e549da867c7605e5a" 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. 2022-09-02 20:44.09 ---> using "d451da695ab21573c7bdead4176eec083b0218f568c4ccf5f5b38b162d64d4d7" from cache /: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam switch create --repositories=default '4.14' '4.14.0'")) <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><> Switch invariant: ["ocaml-base-compiler" {= "4.14.0"} | "ocaml-system" {= "4.14.0"}] <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> installed base-bigarray.base -> installed base-threads.base -> installed base-unix.base -> installed ocaml-options-vanilla.1 -> retrieved ocaml-base-compiler.4.14.0 (cached) -> installed ocaml-base-compiler.4.14.0 -> installed ocaml-config.2 -> installed ocaml.4.14.0 Done. # Run eval $(opam env --switch=4.14) to update the current shell environment 2022-09-02 20:44.09 ---> using "2e2d77654e2c629aecaff46e8b2fbb774604efe723595b9cb0087de8ee46500c" from cache /: (run (network host) (shell "opam update --depexts")) + /usr/bin/sudo "apt-get" "update" - Get:1 http://deb.debian.org/debian unstable InRelease [192 kB] - Get:2 http://deb.debian.org/debian unstable/main amd64 Packages.diff/Index [63.6 kB] - Get:3 http://deb.debian.org/debian unstable/main amd64 Packages T-2022-09-02-1404.47-F-2022-08-29-1405.22.pdiff [271 kB] - Get:3 http://deb.debian.org/debian unstable/main amd64 Packages T-2022-09-02-1404.47-F-2022-08-29-1405.22.pdiff [271 kB] - Fetched 527 kB in 3s (185 kB/s) - Reading package lists... 2022-09-02 20:44.09 ---> using "790a193d914fa70b19b74c4e3aee14f57ada4c64a7bcc9270bbb862b985a2d91" from cache /: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "\ \nopam remove -y \"base-unsafe-string.base\"\ \nopam install -vy \"base-unsafe-string.base\"\ \nres=$?\ \nif [ $res = 31 ]; then\ \n if opam show -f x-ci-accept-failures: \"base-unsafe-string.base\" | 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 $res\ \n")) Nothing to do. [NOTE] base-unsafe-string.base is not installed. [ERROR] Package conflict! * No agreement on the version of ocaml: - (invariant) -> ocaml-base-compiler = 4.14.0 -> ocaml = 4.14.0 - base-unsafe-string -> ocaml < 4.06.0 You can temporarily relax the switch invariant with `--update-invariant' No solution found, exiting 'opam install -vy base-unsafe-string.base' failed. "/bin/bash" "-c" " opam remove -y "base-unsafe-string.base" opam install -vy "base-unsafe-string.base" res=$? if [ $res = 31 ]; then if opam show -f x-ci-accept-failures: "base-unsafe-string.base" | 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