Building on iphito.ocamllabs.io (from ocaml/opam:debian-unstable@sha256:a42f35561d41e85e4a327ee28d83a553e76cdf0155b27d26a2ef8990bb2f046c) 2022-10-31 14:51.02 ---> using "c23bc2f98953a10b5a06e9b2e13482c677fdd2815375b2a51fc9f7ade67b5adc" 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")) 2022-10-31 14:51.02 ---> using "210e7df6a53eab738719ebea1f025b4c21bf528a921204237a690f0940d2fd05" 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 260f9626421e5694f020c6b6c61d3e74a22fc84e")) 2022-10-31 14:51.02 ---> using "e444cd13964be808fe3be000d5c3e607536747ff61a8a5fa2ec24fdd4822e396" 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. 2022-10-31 14:51.02 ---> using "5dd384d3ad718769d3b77dd5940c656a7d5d1799741bb51c91a4a44a43a63f61" from cache /: (run (network host) (shell "git clone -q 'https://github.com/kit-ty-kate/opam-alpha-repository' ~/'alpha' && git -C ~/'alpha' checkout -q 73ae95d730bd3497deba01f77ee80a7e5d5863da")) 2022-10-31 14:51.02 ---> using "1a91e8c0acc4168a6ffe99f72659f5fd6483d3257ad0f58263210ecb5f1e2d2b" from cache /: (run (shell "opam repository add --dont-select 'alpha' ~/'alpha'")) [alpha] Initialised 2022-10-31 14:51.02 ---> using "65281989b29f7f80366096c1612540a44eb682eea042960dd15002954bfea7e8" from cache /: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "opam switch create --repositories=alpha,default '5.0+alpha-repo' '5.0.0+trunk'")) <><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><> Switch invariant: ["ocaml-variants" {= "5.0.0+trunk"}] <><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><> -> installed base-bigarray.base -> installed base-threads.base -> installed base-unix.base -> retrieved ocaml-variants.5.0.0+trunk (https://github.com/ocaml/ocaml/archive/5.0.tar.gz) -> installed ocaml-variants.5.0.0+trunk -> installed ocaml-config.3 -> installed ocaml.5.0.0 -> installed base-domains.base -> installed base-nnp.base Done. # Run eval $(opam env --switch=5.0+alpha-repo) to update the current shell environment 2022-10-31 14:51.02 ---> using "05adb06b7a3fd50d6c0d88c63a70b8b4e0ab2daaaccb1739d380d4b3a77fc496" from cache /: (run (network host) (shell "opam update --depexts")) + /usr/bin/sudo "apt-get" "update" - Get:1 http://deb.debian.org/debian unstable InRelease [161 kB] - Get:2 http://deb.debian.org/debian unstable/main amd64 Packages.diff/Index [63.6 kB] - Get:3 http://deb.debian.org/debian unstable/main amd64 Packages T-2022-10-31-0805.42-F-2022-10-24-1405.29.pdiff [523 kB] - Get:3 http://deb.debian.org/debian unstable/main amd64 Packages T-2022-10-31-0805.42-F-2022-10-24-1405.29.pdiff [523 kB] - Fetched 747 kB in 1s (562 kB/s) - Reading package lists... 2022-10-31 14:51.02 ---> using "ba82336dcf332bd8f0df24ca2bae23149514ef8980a5cf0e61105744bec13a05" from cache /: (run (cache (opam-archives (target /home/opam/.opam/download-cache))) (network host) (shell "\ \nopam remove -y \"OCanren.0.3.0\"\ \nopam install -vy \"OCanren.0.3.0\"\ \nres=$?\ \nif [ $res = 31 ]; then\ \n if opam show -f x-ci-accept-failures: \"OCanren.0.3.0\" | 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 $res\ \n")) Nothing to do. [NOTE] OCanren.0.3.0 is not installed. [ERROR] Package conflict! * No agreement on the version of ocaml: - (invariant) -> ocaml-variants = 5.0.0+trunk -> ocaml = 5.0.0 - OCanren >= 0.3.0 -> camlp5 >= 8.00.02 -> ocaml < 4.14.0 You can temporarily relax the switch invariant with `--update-invariant' No solution found, exiting 'opam install -vy OCanren.0.3.0' failed. "/bin/bash" "-c" " opam remove -y "OCanren.0.3.0" opam install -vy "OCanren.0.3.0" res=$? if [ $res = 31 ]; then if opam show -f x-ci-accept-failures: "OCanren.0.3.0" | 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