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Building on asteria.ocamllabs.io

(from ocaml/opam:debian-unstable@sha256:0689b2c0bae81ca736a3cf47bf9f45d784bdbc49ceb862d61cac3392c998d272)
Unable to find image 'ocaml/opam:debian-unstable@sha256:0689b2c0bae81ca736a3cf47bf9f45d784bdbc49ceb862d61cac3392c998d272' locally
docker.io/ocaml/opam@sha256:0689b2c0bae81ca736a3cf47bf9f45d784bdbc49ceb862d61cac3392c998d272: Pulling from ocaml/opam
007cfbb78823: Pulling fs layer
e92fa349b1fb: Pulling fs layer
acc3a8cfc488: Pulling fs layer
007cfbb78823: Verifying Checksum
007cfbb78823: Download complete
007cfbb78823: Pull complete
acc3a8cfc488: Verifying Checksum
acc3a8cfc488: Download complete
e92fa349b1fb: Verifying Checksum
e92fa349b1fb: Download complete
e92fa349b1fb: Pull complete
acc3a8cfc488: Pull complete
Digest: sha256:0689b2c0bae81ca736a3cf47bf9f45d784bdbc49ceb862d61cac3392c998d272
Status: Downloaded newer image for ocaml/opam@sha256:0689b2c0bae81ca736a3cf47bf9f45d784bdbc49ceb862d61cac3392c998d272
2022-04-06 23:32.46 ---> using "9694d2e78ab3fcaaf506053043dc404ac6350d10eabcb4e61663e36a98d481fd" 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"))
2022-04-06 23:32.46 ---> using "f1435c573d465aa4a3b32f3496f8ddaab4c185e5f8720ec93f2b8f5b9c107d4b" 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 aa1f173b2a62d094b9857fa09cf471a46424c4a8"))
2022-04-06 23:32.46 ---> using "16ab3e697c9012d52ecf2d027a886d80445d47f3204474de827be3a6a09ce5bd" 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.

2022-04-06 23:32.46 ---> using "161fa26fa8ff94f6712afd15c3db137cd2e1a4ac1ac76e29aae43348e67b52d7" from cache

/: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
        (network host)
        (shell "opam switch create --repositories=default '5.0' '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/trunk.tar.gz)
-> installed ocaml-variants.5.0.0+trunk
-> installed ocaml-config.2
-> installed ocaml.5.0.0
-> installed base-domains.base
-> installed base-nnp.base
Done.
# Run eval $(opam env --switch=5.0) to update the current shell environment
2022-04-06 23:32.46 ---> using "4fe020c4fa888d0431c8c5cde8acbf822fa516d7fc3e336457ddc67dac0f69b9" 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]
- Get:3 http://deb.debian.org/debian unstable/main amd64 Packages T-2022-04-06-1404.48-F-2022-03-29-0803.54.pdiff [526 kB]
- Get:3 http://deb.debian.org/debian unstable/main amd64 Packages T-2022-04-06-1404.48-F-2022-03-29-0803.54.pdiff [526 kB]
- Fetched 755 kB in 1s (535 kB/s)
- Reading package lists...
2022-04-06 23:32.46 ---> using "36ae673d88958ab8334999e42a45eeedc22d8dab21880d1d5d86c9a003cbfa35" from cache

/: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
        (network host)
        (shell  "\
               \nopam remove -y \"conf-gles2.1\"\
               \nopam install -vy \"conf-gles2.1\"\
               \nres=$?\
               \nif [ $res = 31 ]; then\
               \n    if opam show -f x-ci-accept-failures: \"conf-gles2.1\" | 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] conf-gles2.1 is not installed.

The following actions will be performed:
=== install 2 packages
  - install conf-gles2      1
  - install conf-pkg-config 2 [required by conf-gles2]

The following system packages will first need to be installed:
    libgles2-mesa-dev 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" "libgles2-mesa-dev" "pkg-config"
- debconf: delaying package configuration, since apt-utils is not installed
- Selecting previously unselected package libdrm-common.
- (Reading database ... 
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(Reading database ... 18470 files and directories currently installed.)
- Preparing to unpack .../00-libdrm-common_2.4.110-1_all.deb ...
- Unpacking libdrm-common (2.4.110-1) ...
- Selecting previously unselected package libdrm2:amd64.
- Preparing to unpack .../01-libdrm2_2.4.110-1_amd64.deb ...
- Unpacking libdrm2:amd64 (2.4.110-1) ...
- Selecting previously unselected package libdrm-amdgpu1:amd64.
- Preparing to unpack .../02-libdrm-amdgpu1_2.4.110-1_amd64.deb ...
- Unpacking libdrm-amdgpu1:amd64 (2.4.110-1) ...
- Selecting previously unselected package libpciaccess0:amd64.
- Preparing to unpack .../03-libpciaccess0_0.16-3_amd64.deb ...
- Unpacking libpciaccess0:amd64 (0.16-3) ...
- Selecting previously unselected package libdrm-intel1:amd64.
- Preparing to unpack .../04-libdrm-intel1_2.4.110-1_amd64.deb ...
- Unpacking libdrm-intel1:amd64 (2.4.110-1) ...
- Selecting previously unselected package libdrm-nouveau2:amd64.
- Preparing to unpack .../05-libdrm-nouveau2_2.4.110-1_amd64.deb ...
- Unpacking libdrm-nouveau2:amd64 (2.4.110-1) ...
- Selecting previously unselected package libdrm-radeon1:amd64.
- Preparing to unpack .../06-libdrm-radeon1_2.4.110-1_amd64.deb ...
- Unpacking libdrm-radeon1:amd64 (2.4.110-1) ...
- Selecting previously unselected package libglvnd0:amd64.
- Preparing to unpack .../07-libglvnd0_1.4.0-1_amd64.deb ...
- Unpacking libglvnd0:amd64 (1.4.0-1) ...
- Selecting previously unselected package libwayland-server0:amd64.
- Preparing to unpack .../08-libwayland-server0_1.20.0-1_amd64.deb ...
- Unpacking libwayland-server0:amd64 (1.20.0-1) ...
- Selecting previously unselected package libgbm1:amd64.
- Preparing to unpack .../09-libgbm1_21.3.7-1_amd64.deb ...
- Unpacking libgbm1:amd64 (21.3.7-1) ...
- Selecting previously unselected package libglapi-mesa:amd64.
- Preparing to unpack .../10-libglapi-mesa_21.3.7-1_amd64.deb ...
- Unpacking libglapi-mesa:amd64 (21.3.7-1) ...
- Selecting previously unselected package libwayland-client0:amd64.
- Preparing to unpack .../11-libwayland-client0_1.20.0-1_amd64.deb ...
- Unpacking libwayland-client0:amd64 (1.20.0-1) ...
- Preparing to unpack .../12-libx11-dev_2%3a1.7.5-1_amd64.deb ...
- Unpacking libx11-dev:amd64 (2:1.7.5-1) over (2:1.7.2-2+b1) ...
- Preparing to unpack .../13-libx11-6_2%3a1.7.5-1_amd64.deb ...
- Unpacking libx11-6:amd64 (2:1.7.5-1) over (2:1.7.2-2+b1) ...
- Selecting previously unselected package libx11-xcb1:amd64.
- Preparing to unpack .../14-libx11-xcb1_2%3a1.7.5-1_amd64.deb ...
- Unpacking libx11-xcb1:amd64 (2:1.7.5-1) ...
- Selecting previously unselected package libxcb-dri2-0:amd64.
- Preparing to unpack .../15-libxcb-dri2-0_1.14-3_amd64.deb ...
- Unpacking libxcb-dri2-0:amd64 (1.14-3) ...
- Selecting previously unselected package libxcb-dri3-0:amd64.
- Preparing to unpack .../16-libxcb-dri3-0_1.14-3_amd64.deb ...
- Unpacking libxcb-dri3-0:amd64 (1.14-3) ...
- Selecting previously unselected package libxcb-present0:amd64.
- Preparing to unpack .../17-libxcb-present0_1.14-3_amd64.deb ...
- Unpacking libxcb-present0:amd64 (1.14-3) ...
- Selecting previously unselected package libxcb-sync1:amd64.
- Preparing to unpack .../18-libxcb-sync1_1.14-3_amd64.deb ...
- Unpacking libxcb-sync1:amd64 (1.14-3) ...
- Selecting previously unselected package libxcb-xfixes0:amd64.
- Preparing to unpack .../19-libxcb-xfixes0_1.14-3_amd64.deb ...
- Unpacking libxcb-xfixes0:amd64 (1.14-3) ...
- Selecting previously unselected package libxshmfence1:amd64.
- Preparing to unpack .../20-libxshmfence1_1.3-1_amd64.deb ...
- Unpacking libxshmfence1:amd64 (1.3-1) ...
- Selecting previously unselected package libegl-mesa0:amd64.
- Preparing to unpack .../21-libegl-mesa0_21.3.7-1_amd64.deb ...
- Unpacking libegl-mesa0:amd64 (21.3.7-1) ...
- Selecting previously unselected package libegl1:amd64.
- Preparing to unpack .../22-libegl1_1.4.0-1_amd64.deb ...
- Unpacking libegl1:amd64 (1.4.0-1) ...
- Selecting previously unselected package libxcb-glx0:amd64.
- Preparing to unpack .../23-libxcb-glx0_1.14-3_amd64.deb ...
- Unpacking libxcb-glx0:amd64 (1.14-3) ...
- Selecting previously unselected package libxcb-shm0:amd64.
- Preparing to unpack .../24-libxcb-shm0_1.14-3_amd64.deb ...
- Unpacking libxcb-shm0:amd64 (1.14-3) ...
- Selecting previously unselected package libxfixes3:amd64.
- Preparing to unpack .../25-libxfixes3_1%3a6.0.0-1_amd64.deb ...
- Unpacking libxfixes3:amd64 (1:6.0.0-1) ...
- Selecting previously unselected package libxxf86vm1:amd64.
- Preparing to unpack .../26-libxxf86vm1_1%3a1.1.4-1+b2_amd64.deb ...
- Unpacking libxxf86vm1:amd64 (1:1.1.4-1+b2) ...
- Selecting previously unselected package libelf1:amd64.
- Preparing to unpack .../27-libelf1_0.186-1_amd64.deb ...
- Unpacking libelf1:amd64 (0.186-1) ...
- Selecting previously unselected package libicu67:amd64.
- Preparing to unpack .../28-libicu67_67.1-7_amd64.deb ...
- Unpacking libicu67:amd64 (67.1-7) ...
- Selecting previously unselected package libxml2:amd64.
- Preparing to unpack .../29-libxml2_2.9.13+dfsg-1_amd64.deb ...
- Unpacking libxml2:amd64 (2.9.13+dfsg-1) ...
- Selecting previously unselected package libz3-4:amd64.
- Preparing to unpack .../30-libz3-4_4.8.12-1+b1_amd64.deb ...
- Unpacking libz3-4:amd64 (4.8.12-1+b1) ...
- Selecting previously unselected package libllvm13:amd64.
- Preparing to unpack .../31-libllvm13_1%3a13.0.1-3+b2_amd64.deb ...
- Unpacking libllvm13:amd64 (1:13.0.1-3+b2) ...
- Selecting previously unselected package libsensors-config.
- Preparing to unpack .../32-libsensors-config_1%3a3.6.0-7_all.deb ...
- Unpacking libsensors-config (1:3.6.0-7) ...
- Selecting previously unselected package libsensors5:amd64.
- Preparing to unpack .../33-libsensors5_1%3a3.6.0-7_amd64.deb ...
- Unpacking libsensors5:amd64 (1:3.6.0-7) ...
- Selecting previously unselected package libvulkan1:amd64.
- Preparing to unpack .../34-libvulkan1_1.3.204.1-2_amd64.deb ...
- Unpacking libvulkan1:amd64 (1.3.204.1-2) ...
- Selecting previously unselected package libgl1-mesa-dri:amd64.
- Preparing to unpack .../35-libgl1-mesa-dri_21.3.7-1_amd64.deb ...
- Unpacking libgl1-mesa-dri:amd64 (21.3.7-1) ...
- Selecting previously unselected package libglx-mesa0:amd64.
- Preparing to unpack .../36-libglx-mesa0_21.3.7-1_amd64.deb ...
- Unpacking libglx-mesa0:amd64 (21.3.7-1) ...
- Selecting previously unselected package libglx0:amd64.
- Preparing to unpack .../37-libglx0_1.4.0-1_amd64.deb ...
- Unpacking libglx0:amd64 (1.4.0-1) ...
- Selecting previously unselected package libgl1:amd64.
- Preparing to unpack .../38-libgl1_1.4.0-1_amd64.deb ...
- Unpacking libgl1:amd64 (1.4.0-1) ...
- Selecting previously unselected package libglx-dev:amd64.
- Preparing to unpack .../39-libglx-dev_1.4.0-1_amd64.deb ...
- Unpacking libglx-dev:amd64 (1.4.0-1) ...
- Selecting previously unselected package libgl-dev:amd64.
- Preparing to unpack .../40-libgl-dev_1.4.0-1_amd64.deb ...
- Unpacking libgl-dev:amd64 (1.4.0-1) ...
- Selecting previously unselected package libegl-dev:amd64.
- Preparing to unpack .../41-libegl-dev_1.4.0-1_amd64.deb ...
- Unpacking libegl-dev:amd64 (1.4.0-1) ...
- Selecting previously unselected package libgles1:amd64.
- Preparing to unpack .../42-libgles1_1.4.0-1_amd64.deb ...
- Unpacking libgles1:amd64 (1.4.0-1) ...
- Selecting previously unselected package libgles2:amd64.
- Preparing to unpack .../43-libgles2_1.4.0-1_amd64.deb ...
- Unpacking libgles2:amd64 (1.4.0-1) ...
- Selecting previously unselected package libgles-dev:amd64.
- Preparing to unpack .../44-libgles-dev_1.4.0-1_amd64.deb ...
- Unpacking libgles-dev:amd64 (1.4.0-1) ...
- Selecting previously unselected package libglvnd-core-dev:amd64.
- Preparing to unpack .../45-libglvnd-core-dev_1.4.0-1_amd64.deb ...
- Unpacking libglvnd-core-dev:amd64 (1.4.0-1) ...
- Selecting previously unselected package libopengl0:amd64.
- Preparing to unpack .../46-libopengl0_1.4.0-1_amd64.deb ...
- Unpacking libopengl0:amd64 (1.4.0-1) ...
- Selecting previously unselected package libopengl-dev:amd64.
- Preparing to unpack .../47-libopengl-dev_1.4.0-1_amd64.deb ...
- Unpacking libopengl-dev:amd64 (1.4.0-1) ...
- Selecting previously unselected package libglvnd-dev:amd64.
- Preparing to unpack .../48-libglvnd-dev_1.4.0-1_amd64.deb ...
- Unpacking libglvnd-dev:amd64 (1.4.0-1) ...
- Selecting previously unselected package libgles2-mesa-dev:amd64.
- Preparing to unpack .../49-libgles2-mesa-dev_21.3.7-1_amd64.deb ...
- Unpacking libgles2-mesa-dev:amd64 (21.3.7-1) ...
- Selecting previously unselected package libglib2.0-0:amd64.
- Preparing to unpack .../50-libglib2.0-0_2.72.0-1+b1_amd64.deb ...
- Unpacking libglib2.0-0:amd64 (2.72.0-1+b1) ...
- Selecting previously unselected package libglib2.0-data.
- Preparing to unpack .../51-libglib2.0-data_2.72.0-1_all.deb ...
- Unpacking libglib2.0-data (2.72.0-1) ...
- Selecting previously unselected package libxcb-randr0:amd64.
- Preparing to unpack .../52-libxcb-randr0_1.14-3_amd64.deb ...
- Unpacking libxcb-randr0:amd64 (1.14-3) ...
- Selecting previously unselected package mesa-vulkan-drivers:amd64.
- Preparing to unpack .../53-mesa-vulkan-drivers_21.3.7-1_amd64.deb ...
- Unpacking mesa-vulkan-drivers:amd64 (21.3.7-1) ...
- Selecting previously unselected package pkg-config.
- Preparing to unpack .../54-pkg-config_0.29.2-1_amd64.deb ...
- Unpacking pkg-config (0.29.2-1) ...
- Selecting previously unselected package shared-mime-info.
- Preparing to unpack .../55-shared-mime-info_2.1-2_amd64.deb ...
- Unpacking shared-mime-info (2.1-2) ...
- Selecting previously unselected package xdg-user-dirs.
- Preparing to unpack .../56-xdg-user-dirs_0.17-2_amd64.deb ...
- Unpacking xdg-user-dirs (0.17-2) ...
- Setting up libxcb-dri3-0:amd64 (1.14-3) ...
- Setting up libwayland-server0:amd64 (1.20.0-1) ...
- Setting up libpciaccess0:amd64 (0.16-3) ...
- Setting up libxcb-xfixes0:amd64 (1.14-3) ...
- Setting up libglvnd-core-dev:amd64 (1.4.0-1) ...
- Setting up libicu67:amd64 (67.1-7) ...
- Setting up xdg-user-dirs (0.17-2) ...
- Setting up libglib2.0-0:amd64 (2.72.0-1+b1) ...
- No schema files found: doing nothing.
- Setting up libglvnd0:amd64 (1.4.0-1) ...
- Setting up libxcb-glx0:amd64 (1.14-3) ...
- Setting up libsensors-config (1:3.6.0-7) ...
- Setting up libxcb-shm0:amd64 (1.14-3) ...
- Setting up libopengl0:amd64 (1.4.0-1) ...
- Setting up libxcb-present0:amd64 (1.14-3) ...
- Setting up libz3-4:amd64 (4.8.12-1+b1) ...
- Setting up libglib2.0-data (2.72.0-1) ...
- Setting up libgles2:amd64 (1.4.0-1) ...
- Setting up libxcb-sync1:amd64 (1.14-3) ...
- Setting up libgles1:amd64 (1.4.0-1) ...
- Setting up pkg-config (0.29.2-1) ...
- Setting up libsensors5:amd64 (1:3.6.0-7) ...
- Setting up libglapi-mesa:amd64 (21.3.7-1) ...
- Setting up libvulkan1:amd64 (1.3.204.1-2) ...
- Setting up libxcb-dri2-0:amd64 (1.14-3) ...
- Setting up libxshmfence1:amd64 (1.3-1) ...
- Setting up libxcb-randr0:amd64 (1.14-3) ...
- Setting up libx11-6:amd64 (2:1.7.5-1) ...
- Setting up libopengl-dev:amd64 (1.4.0-1) ...
- Setting up libdrm-common (2.4.110-1) ...
- Setting up libelf1:amd64 (0.186-1) ...
- Setting up libxml2:amd64 (2.9.13+dfsg-1) ...
- Setting up libwayland-client0:amd64 (1.20.0-1) ...
- Setting up libx11-xcb1:amd64 (2:1.7.5-1) ...
- Setting up libx11-dev:amd64 (2:1.7.5-1) ...
- Setting up libxxf86vm1:amd64 (1:1.1.4-1+b2) ...
- Setting up libxfixes3:amd64 (1:6.0.0-1) ...
- Setting up shared-mime-info (2.1-2) ...
- Setting up libllvm13:amd64 (1:13.0.1-3+b2) ...
- Setting up libdrm2:amd64 (2.4.110-1) ...
- Setting up libdrm-amdgpu1:amd64 (2.4.110-1) ...
- Setting up mesa-vulkan-drivers:amd64 (21.3.7-1) ...
- Setting up libdrm-nouveau2:amd64 (2.4.110-1) ...
- Setting up libgbm1:amd64 (21.3.7-1) ...
- Setting up libdrm-radeon1:amd64 (2.4.110-1) ...
- Setting up libdrm-intel1:amd64 (2.4.110-1) ...
- Setting up libgl1-mesa-dri:amd64 (21.3.7-1) ...
- Setting up libegl-mesa0:amd64 (21.3.7-1) ...
- Setting up libegl1:amd64 (1.4.0-1) ...
- Setting up libglx-mesa0:amd64 (21.3.7-1) ...
- Setting up libglx0:amd64 (1.4.0-1) ...
- Setting up libgl1:amd64 (1.4.0-1) ...
- Setting up libglx-dev:amd64 (1.4.0-1) ...
- Setting up libgl-dev:amd64 (1.4.0-1) ...
- Setting up libegl-dev:amd64 (1.4.0-1) ...
- Setting up libgles-dev:amd64 (1.4.0-1) ...
- Setting up libglvnd-dev:amd64 (1.4.0-1) ...
- Setting up libgles2-mesa-dev:amd64 (21.3.7-1) ...
- Processing triggers for libc-bin (2.33-7) ...

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  3/6: [conf-pkg-config: pkg-config]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "pkg-config" "--help" (CWD=/home/opam/.opam/5.0/.opam-switch/build/conf-pkg-config.2)
- Usage:
-   pkg-config [OPTION?]
- 
- Help Options:
-   -h, --help                              Show help options
- 
- Application Options:
-   --version                               output version of pkg-config
-   --modversion                            output version for package
-   --atleast-pkgconfig-version=VERSION     require given version of pkg-config
-   --libs                                  output all linker flags
-   --static                                output linker flags for static linking
-   --short-errors                          print short errors
-   --libs-only-l                           output -l flags
-   --libs-only-other                       output other libs (e.g. -pthread)
-   --libs-only-L                           output -L flags
-   --cflags                                output all pre-processor and compiler flags
-   --cflags-only-I                         output -I flags
-   --cflags-only-other                     output cflags not covered by the cflags-only-I option
-   --variable=NAME                         get the value of variable named NAME
-   --define-variable=NAME=VALUE            set variable NAME to VALUE
-   --exists                                return 0 if the module(s) exist
-   --print-variables                       output list of variables defined by the module
-   --uninstalled                           return 0 if the uninstalled version of one or more module(s) or their dependencies will be used
-   --atleast-version=VERSION               return 0 if the module is at least version VERSION
-   --exact-version=VERSION                 return 0 if the module is at exactly version VERSION
-   --max-version=VERSION                   return 0 if the module is at no newer than version VERSION
-   --list-all                              list all known packages
-   --debug                                 show verbose debug information
-   --print-errors                          show verbose information about missing or conflicting packages (default unless --exists or --atleast/exact/max-version given on the command line)
-   --silence-errors                        be silent about errors (default when --exists or --atleast/exact/max-version given on the command line)
-   --errors-to-stdout                      print errors from --print-errors to stdout not stderr
-   --print-provides                        print which packages the package provides
-   --print-requires                        print which packages the package requires
-   --print-requires-private                print which packages the package requires for static linking
-   --validate                              validate a package's .pc file
-   --define-prefix                         try to override the value of prefix for each .pc file found with a guesstimated value based on the location of the .pc file
-   --dont-define-prefix                    don't try to override the value of prefix for each .pc file found with a guesstimated value based on the location of the .pc file
-   --prefix-variable=PREFIX                set the name of the variable that pkg-config automatically sets
- 
-> compiled  conf-pkg-config.2
Processing  4/6: [conf-pkg-config: mkdir]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "install" "mkdir" "-p" "/home/opam/.opam/5.0/lib/pkgconfig" (CWD=/home/opam/.opam/5.0/.opam-switch/build/conf-pkg-config.2)
-> installed conf-pkg-config.2
Processing  5/6: [conf-gles2: pkg-config glesv2]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "pkg-config" "--exists" "glesv2" (CWD=/home/opam/.opam/5.0/.opam-switch/build/conf-gles2.1)
-> compiled  conf-gles2.1
-> installed conf-gles2.1
Done.
# Run eval $(opam env) to update the current shell environment
2022-04-06 23:33.22 ---> saved as "e7d0903f1fc84a1fff3d05a4d871eddbf40b1a1bb92a1a79e0e5f3fb3a1a63bb"
Job succeeded