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Building on marpe.caelum.ci.dev

(from ocaml/opam:debian-unstable@sha256:a81e38f7942f916eec4a7145224dbc6fcdf584820db2ab3063127d58ba80e4bb)
Unable to find image 'ocaml/opam:debian-unstable@sha256:a81e38f7942f916eec4a7145224dbc6fcdf584820db2ab3063127d58ba80e4bb' locally
docker.io/ocaml/opam@sha256:a81e38f7942f916eec4a7145224dbc6fcdf584820db2ab3063127d58ba80e4bb: Pulling from ocaml/opam
1ae3b60c1a35: Pulling fs layer
1ae3b60c1a35: Verifying Checksum
1ae3b60c1a35: Download complete
1ae3b60c1a35: Pull complete
Digest: sha256:a81e38f7942f916eec4a7145224dbc6fcdf584820db2ab3063127d58ba80e4bb
Status: Downloaded newer image for ocaml/opam@sha256:a81e38f7942f916eec4a7145224dbc6fcdf584820db2ab3063127d58ba80e4bb
2023-07-02 21:09.35 ---> using "c1e06f8014f4e4402e9743f32f9c406d2ceb2e9cafdf160fa25c5b4c5ddee1d0" 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"))
2023-07-02 21:09.35 ---> using "8710ae7221b0b40c4c31b8ab0b81a9e7702135c592da6045a57796358f5f39d3" 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 86961ac6d7505a361cd605968329990033691c57"))
2023-07-02 21:09.35 ---> using "0d0411dee08b7b9bbde0ce3d72beb85e2380abb682bfd207e6e830d1a2f6147b" 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.

2023-07-02 21:09.35 ---> using "4fd6f3e60fac8833ee35ce0f3db21cc7397ae6010de50b9444f037226216ee99" from cache

/: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
        (network host)
        (shell "opam switch create --repositories=default '4.12' '4.12.1'"))

<><> Installing new switch packages <><><><><><><><><><><><><><><><><><><><><><>
Switch invariant: ["ocaml-base-compiler" {= "4.12.1"} | "ocaml-system" {= "4.12.1"}]

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> installed base-bigarray.base
-> installed base-threads.base
-> installed base-unix.base
-> installed ocaml-options-vanilla.1
-> retrieved ocaml-base-compiler.4.12.1  (cached)
-> installed ocaml-base-compiler.4.12.1
-> installed ocaml-config.2
-> installed ocaml.4.12.1
Done.
# Run eval $(opam env --switch=4.12) to update the current shell environment
2023-07-02 21:09.35 ---> using "a329ed03ec518b547f5d0d52d20cda763f714e36d7fc92bf7eed295cd1e2e535" from cache

/: (run (network host)
        (shell "opam update --depexts"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://deb.debian.org/debian unstable InRelease [199 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-2023-07-01-0813.52-F-2023-06-29-2041.00.pdiff [102 kB]
- Get:3 http://deb.debian.org/debian unstable/main amd64 Packages T-2023-07-01-0813.52-F-2023-06-29-2041.00.pdiff [102 kB]
- Fetched 365 kB in 1s (270 kB/s)
- Reading package lists...
2023-07-02 21:09.35 ---> using "9a19a24463712e580211576cbe307b3c0b7904a4d0857e170c117e08007623a7" from cache

/: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
        (network host)
        (shell  "\
               \nopam remove -y \"visitors.20210316\"\
               \nopam install -vy \"visitors.20210316\"\
               \nres=$?\
               \nif [ $res = 31 ]; then\
               \n    if opam show -f x-ci-accept-failures: \"visitors.20210316\" | 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] visitors.20210316 is not installed.

The following actions will be performed:
=== install 12 packages
  - install cppo                    1.6.9    [required by ppx_deriving]
  - install dune                    3.9.0    [required by visitors]
  - install ocaml-compiler-libs     v0.12.4  [required by ppxlib]
  - install ocaml-migrate-parsetree 2.4.0    [required by ppxlib]
  - install ocamlfind               1.9.6    [required by ppx_deriving]
  - install ppx_derivers            1.2.1    [required by ppx_deriving]
  - install ppx_deriving            5.2.1    [required by visitors]
  - install ppxlib                  0.22.2   [required by visitors]
  - install result                  1.5      [required by visitors]
  - install sexplib0                v0.16.0  [required by ppxlib]
  - install stdlib-shims            0.3.0    [required by ppxlib]
  - install visitors                20210316

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Processing  1/36:
Processing  2/36:
Processing  3/36:
-> retrieved cppo.1.6.9  (cached)
Processing  4/36:
-> retrieved ocaml-compiler-libs.v0.12.4  (cached)
Processing  5/36:
-> retrieved ocamlfind.1.9.6  (cached)
Processing  6/36:
[ocamlfind: patch] applying 0001-Harden-test-for-OCaml-5.patch
Processing  7/36: [ocamlfind: patch]
-> retrieved ocaml-migrate-parsetree.2.4.0  (cached)
Processing  8/36: [ocamlfind: patch]
-> retrieved ppx_derivers.1.2.1  (cached)
Processing  9/36: [ocamlfind: patch]
Processing  9/36: [ocamlfind: ./configure]
-> retrieved ppx_deriving.5.2.1  (cached)
Processing 10/36: [ocamlfind: ./configure]
-> retrieved result.1.5  (cached)
Processing 11/36: [ocamlfind: ./configure]
-> retrieved sexplib0.v0.16.0  (cached)
Processing 12/36: [ocamlfind: ./configure]
-> retrieved ppxlib.0.22.2  (cached)
Processing 13/36: [visitors.20210316: http] [ocamlfind: ./configure]
-> retrieved stdlib-shims.0.3.0  (cached)
[ERROR] Failed to get sources of visitors.20210316: Curl failed
Processing 13/36: [ocamlfind: ./configure]
-> retrieved dune.3.9.0  (cached)
Processing 14/36: [dune: ocaml 255] [ocamlfind: ./configure]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "./configure" "-bindir" "/home/opam/.opam/4.12/bin" "-sitelib" "/home/opam/.opam/4.12/lib" "-mandir" "/home/opam/.opam/4.12/man" "-config" "/home/opam/.opam/4.12/lib/findlib.conf" "-no-custom" "-no-camlp4" (CWD=/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6)
- Welcome to findlib version 1.9.6
- Configuring core...
- Checking for #remove_directory...
- Testing threading model...
- systhread_supported: true
- Testing DLLs...
- Testing whether ppxopt can be supported...
- Checking for ocamlc -opaque...
- Checking for ocamlopt -g...
- Querying installation: META list not found
- make install will double-check installed META files
- Configuring libraries...
- unix: found
- dynlink: found
- bigarray: found
- compiler-libs: found
- dbm: not present (normal since 4.00)
- graphics: not present (normal since 4.09)
- num: not present (normal since 4.06)
- ocamlbuild: not present (normal since 4.03)
- ocamldoc: found (in +ocamldoc)
- raw_spacetime: not present (normal since 4.12)
- threads: found (in +threads)
- str: found
- labltk: not present (normal since 4.02)
- native dynlink: found
- camlp4: disabled
- bytes: found, installing fake library
- Configuration for stdlib written to site-lib-src/stdlib/META
- Configuration for unix written to site-lib-src/unix/META
- Configuration for dynlink written to site-lib-src/dynlink/META
- Configuration for bigarray written to site-lib-src/bigarray/META
- Configuration for compiler-libs written to site-lib-src/compiler-libs/META
- Configuration for ocamldoc written to site-lib-src/ocamldoc/META
- Configuration for threads written to site-lib-src/threads/META
- Configuration for str written to site-lib-src/str/META
- Configuration for bytes written to site-lib-src/bytes/META
- Detecting compiler arguments: (extractor built) ok
- 
- About the OCAML core installation:
-     Standard library:      /home/opam/.opam/4.12/lib/ocaml
-     Binaries:              /home/opam/.opam/4.12/bin
-     Manual pages:          /home/opam/.opam/4.12/man
-     Multi-threading type:  posix
- The directory of site-specific packages will be
-     site-lib:              /home/opam/.opam/4.12/lib
- The configuration file is written to:
-     findlib config file:   /home/opam/.opam/4.12/lib/findlib.conf
- Software will be installed:
-     Libraries:             in <site-lib>/findlib
-     Binaries:              /home/opam/.opam/4.12/bin
-     Manual pages:          /home/opam/.opam/4.12/man
-     topfind script:        /home/opam/.opam/4.12/lib/ocaml
- Topfind ppxopt support:    yes
- Toolbox:                   no
- Link custom runtime:       no
- Need bytes compatibility:  no
- 
- Configuration has been written to Makefile.config
- 
- You can now do 'make all', and optionally 'make opt', to build ocamlfind.
Processing 14/36: [dune: ocaml 255] [ocamlfind: make all]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "make" "all" (CWD=/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6)
- for p in findlib; do ( cd src/$p; make all ) || exit; done
- make[1]: Entering directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6/src/findlib'
- ocamllex fl_meta.mll
- 22 states, 392 transitions, table size 1700 bytes
- USE_CYGPATH="0"; \
- export USE_CYGPATH; \
- cat findlib_config.mlp | \
-          ../../tools/patch '@CONFIGFILE@' '/home/opam/.opam/4.12/lib/findlib.conf' | \
-          ../../tools/patch '@STDLIB@' '/home/opam/.opam/4.12/lib/ocaml' | \
- 	sed -e 's;@AUTOLINK@;true;g' \
- 	    -e 's;@SYSTEM@;linux;g' \
- 	     >findlib_config.ml
- if [ "true" = "true" ]; then                 \
- 	cp topfind.ml.in topfind.ml;                             \
- else                                                             \
- 	sed -e '/PPXOPT_BEGIN/,/PPXOPT_END/ d' topfind.ml.in     \
- 		> topfind.ml ;                                   \
- fi
- ocamldep *.ml *.mli >depend
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c findlib_config.ml
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c fl_split.ml
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c fl_metatoken.ml
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c fl_meta.ml
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -c fl_metascanner.mli
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c fl_metascanner.ml
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -c fl_topo.mli
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c fl_topo.ml
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -c fl_package_base.mli
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c fl_package_base.ml
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -c findlib.mli
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c findlib.ml
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c fl_args.ml
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c fl_lint.ml
- ocamlc -I +compiler-libs -a -o findlib.cma findlib_config.cmo fl_split.cmo fl_metatoken.cmo fl_meta.cmo fl_metascanner.cmo fl_topo.cmo fl_package_base.cmo findlib.cmo fl_args.cmo fl_lint.cmo
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c ocaml_args.ml
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c frontend.ml
- ocamlc -I +compiler-libs  -o ocamlfind -g findlib.cma unix.cma \
-            -I +unix -I +dynlink ocaml_args.cmo frontend.cmo
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -c topfind.mli
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c topfind.ml
- ocamlc -I +compiler-libs -a -o findlib_top.cma topfind.cmo
- USE_CYGPATH="0"; \
- export USE_CYGPATH; \
- cat topfind_rd1.p | \
-          ../../tools/patch '@SITELIB@' '/home/opam/.opam/4.12/lib' \
-     	    >topfind
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -c fl_dynload.mli
- ocamlc -I +compiler-libs -opaque   -I +unix -I +dynlink -g -c fl_dynload.ml
- ocamlc -I +compiler-libs -a -o findlib_dynload.cma fl_dynload.cmo
- make[1]: Leaving directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6/src/findlib'
- make all-config
- make[1]: Entering directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6'
- USE_CYGPATH="0"; \
- export USE_CYGPATH; \
- cat findlib.conf.in | \
-      tools/patch '@SITELIB@' '/home/opam/.opam/4.12/lib' | \
- 		 tools/patch '@FINDLIB_PATH@' '/home/opam/.opam/4.12/lib' -p >findlib.conf
- if ./tools/cmd_from_same_dir ocamlc; then \
- 	echo 'ocamlc="ocamlc.opt"' >>findlib.conf; \
- fi
- if ./tools/cmd_from_same_dir ocamlopt; then \
- 	echo 'ocamlopt="ocamlopt.opt"' >>findlib.conf; \
- fi
- if ./tools/cmd_from_same_dir ocamldep; then \
- 	echo 'ocamldep="ocamldep.opt"' >>findlib.conf; \
- fi
- if ./tools/cmd_from_same_dir ocamldoc; then \
- 	echo 'ocamldoc="ocamldoc.opt"' >>findlib.conf; \
- fi
- make[1]: Leaving directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6'
Processing 14/36: [dune: ocaml 255] [ocamlfind: make opt]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "make" "opt" (CWD=/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6)
- for p in findlib; do ( cd src/$p; make opt ) || exit; done
- make[1]: Entering directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6/src/findlib'
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c findlib_config.ml
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c fl_split.ml
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c fl_metatoken.ml
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c fl_meta.ml
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c fl_metascanner.ml
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c fl_topo.ml
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c fl_package_base.ml
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c findlib.ml
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c fl_args.ml
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c fl_lint.ml
- ocamlopt -I +compiler-libs -g -a -o findlib.cmxa findlib_config.cmx fl_split.cmx fl_metatoken.cmx fl_meta.cmx fl_metascanner.cmx fl_topo.cmx fl_package_base.cmx findlib.cmx fl_args.cmx fl_lint.cmx
- if [ 1 -gt 0 ]; then \
-     ocamlopt -I +compiler-libs -g -shared -o findlib.cmxs findlib_config.cmx fl_split.cmx fl_metatoken.cmx fl_meta.cmx fl_metascanner.cmx fl_topo.cmx fl_package_base.cmx findlib.cmx fl_args.cmx fl_lint.cmx; \
- fi
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c ocaml_args.ml
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c frontend.ml
- ocamlopt -I +compiler-libs -g -o ocamlfind_opt findlib.cmxa unix.cmxa \
- 	   -I +unix -I +dynlink ocaml_args.cmx frontend.cmx
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c topfind.ml
- File "_none_", line 1:
- Warning 58 [no-cmx-file]: no cmx file was found in path for module Topdirs, and its interface was not compiled with -opaque
- File "_none_", line 1:
- Warning 58 [no-cmx-file]: no cmx file was found in path for module Toploop, and its interface was not compiled with -opaque
- ocamlopt -I +compiler-libs -g -a -o findlib_top.cmxa topfind.cmx
- if [ 1 -gt 0 ]; then \
-     ocamlopt -I +compiler-libs -g -shared -o findlib_top.cmxs topfind.cmx; \
- fi
- ocamlopt -I +compiler-libs -g -opaque  -I +unix -I +dynlink -c fl_dynload.ml
- ocamlopt -I +compiler-libs -g -a -o findlib_dynload.cmxa fl_dynload.cmx
- if [ 1 -gt 0 ]; then \
-     ocamlopt -I +compiler-libs -g -shared -o findlib_dynload.cmxs fl_dynload.cmx; \
- fi
- make[1]: Leaving directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6/src/findlib'
-> compiled  ocamlfind.1.9.6
Processing 14/36: [dune: ocaml 255]
Processing 15/36: [dune: ocaml 255] [ocamlfind: make install]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "install" "make" "install" (CWD=/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6)
- if [ "1" -eq 1 ]; then \
-     for x in camlp4 dbm graphics labltk num ocamlbuild; do \
-       if [ -f "/home/opam/.opam/4.12/lib/$x/META" ]; then \
-         if ! grep -Fq '[distributed with Ocaml]' "//home/opam/.opam/4.12/lib/$x/META"; then \
-           rm -f site-lib-src/$x/META; \
-         fi; \
-       fi; \
-     done; \
-     test -f "site-lib-src/num/META" || rm -f "site-lib-src/num-top/META"; \
-   fi
- echo 'SITELIB_META =' > Makefile.packages.in
- for x in `ls site-lib-src`; do test ! -f "site-lib-src/$x/META" || echo $x >> Makefile.packages.in; done
- tr '\n' ' ' < Makefile.packages.in > Makefile.packages
- rm Makefile.packages.in
- install -d "/home/opam/.opam/4.12/bin"
- install -d "/home/opam/.opam/4.12/man"
- make install-config
- make[1]: Entering directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6'
- install -d "`dirname \"/home/opam/.opam/4.12/lib/findlib.conf\"`"
- test -f "/home/opam/.opam/4.12/lib/findlib.conf" || install -c findlib.conf "/home/opam/.opam/4.12/lib/findlib.conf"
- make[1]: Leaving directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6'
- for p in findlib; do ( cd src/$p; make install ); done
- make[1]: Entering directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6/src/findlib'
- install -d "/home/opam/.opam/4.12/lib/findlib"
- install -d "/home/opam/.opam/4.12/bin"
- test 1 -eq 0 || install -d "/home/opam/.opam/4.12/lib/ocaml"
- test 1 -eq 0 || install -c topfind "/home/opam/.opam/4.12/lib/ocaml/"
- files=` ../../tools/collect_files ../../Makefile.config \
- findlib.cmi findlib.mli findlib.cma findlib.cmxa findlib.a findlib.cmxs \
- findlib_config.cmi findlib_config.ml topfind.cmi topfind.mli \
- fl_args.cmi fl_lint.cmi fl_meta.cmi fl_split.cmi fl_topo.cmi ocaml_args.cmi \
- fl_package_base.mli fl_package_base.cmi fl_metascanner.mli fl_metascanner.cmi \
- fl_metatoken.cmi findlib_top.cma findlib_top.cmxa findlib_top.a findlib_top.cmxs \
- findlib_dynload.cma findlib_dynload.cmxa findlib_dynload.a findlib_dynload.cmxs fl_dynload.mli fl_dynload.cmi \
- META` && \
- install -c $files "/home/opam/.opam/4.12/lib/findlib/"
- f="ocamlfind"; { test -f ocamlfind_opt && f="ocamlfind_opt"; }; \
- install -c $f "/home/opam/.opam/4.12/bin/ocamlfind"
- # the following "if" block is only needed for 4.00beta2
- if [ 1 -eq 0 -a -f "/home/opam/.opam/4.12/lib/ocaml/compiler-libs/topdirs.cmi" ]; then \
-     cd "/home/opam/.opam/4.12/lib/ocaml/compiler-libs/"; \
-     install -c topdirs.cmi toploop.cmi "/home/opam/.opam/4.12/lib/findlib/"; \
- fi
- make[1]: Leaving directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6/src/findlib'
- make install-meta
- make[1]: Entering directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6'
- for x in bigarray bytes compiler-libs dynlink ocamldoc stdlib str threads unix ; do install -d "/home/opam/.opam/4.12/lib/$x"; install -c site-lib-src/$x/META "/home/opam/.opam/4.12/lib/$x/META.tmp" && mv "/home/opam/.opam/4.12/lib/$x/META.tmp" "/home/opam/.opam/4.12/lib/$x/META"; done
- install -d "/home/opam/.opam/4.12/lib/findlib"; install -c Makefile.packages "/home/opam/.opam/4.12/lib/findlib/Makefile.packages"
- make[1]: Leaving directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6'
- test ! -f 'site-lib-src/num-top/META' || { cd src/findlib; make install-num-top; }
- test ! -f 'site-lib-src/camlp4/META' ||	install -c tools/safe_camlp4 "/home/opam/.opam/4.12/bin"
- make install-doc
- make[1]: Entering directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6'
- install -d "/home/opam/.opam/4.12/man/man1" "/home/opam/.opam/4.12/man/man3" "/home/opam/.opam/4.12/man/man5"
- install -c doc/ref-man/ocamlfind.1 "/home/opam/.opam/4.12/man/man1"
- install -c doc/ref-man/META.5 doc/ref-man/site-lib.5 doc/ref-man/findlib.conf.5 "/home/opam/.opam/4.12/man/man5"
- make[1]: Leaving directory '/home/opam/.opam/4.12/.opam-switch/build/ocamlfind.1.9.6'
-> installed ocamlfind.1.9.6
Processing 15/36: [dune: ocaml 255]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "ocaml" "boot/bootstrap.ml" "-j" "255" (CWD=/home/opam/.opam/4.12/.opam-switch/build/dune.3.9.0)
- ocamlc -output-complete-exe -w -24 -g -o .duneboot.exe -I boot unix.cma boot/libs.ml boot/duneboot.ml
- ./.duneboot.exe -j 255
- 

Processing 15/36: [dune: ./_boot/dune.exe build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "./_boot/dune.exe" "build" "dune.install" "--release" "--profile" "dune-bootstrap" "-j" "255" (CWD=/home/opam/.opam/4.12/.opam-switch/build/dune.3.9.0)
-> compiled  dune.3.9.0
-> installed dune.3.9.0
Processing 17/36: [cppo: dune build]
Processing 18/36: [cppo: dune build] [ocaml-compiler-libs: dune build]
Processing 19/36: [cppo: dune build] [ocaml-compiler-libs: dune build] [ocaml-migrate-parsetree: dune build]
Processing 20/36: [cppo: dune build] [ocaml-compiler-libs: dune build] [ocaml-migrate-parsetree: dune build] [ppx_derivers: dune build]
Processing 21/36: [cppo: dune build] [ocaml-compiler-libs: dune build] [ocaml-migrate-parsetree: dune build] [ppx_derivers: dune build] [result: dune build]
Processing 22/36: [cppo: dune build] [ocaml-compiler-libs: dune build] [ocaml-migrate-parsetree: dune build] [ppx_derivers: dune build] [result: dune build] [sexplib0: dune build]
Processing 23/36: [cppo: dune build] [ocaml-compiler-libs: dune build] [ocaml-migrate-parsetree: dune build] [ppx_derivers: dune build] [result: dune build] [sexplib0: dune build] [stdlib-shims: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "ppx_derivers" "-j" "255" (CWD=/home/opam/.opam/4.12/.opam-switch/build/ppx_derivers.1.2.1)
-> compiled  ppx_derivers.1.2.1
Processing 23/36: [cppo: dune build] [ocaml-compiler-libs: dune build] [ocaml-migrate-parsetree: dune build] [result: dune build] [sexplib0: dune build] [stdlib-shims: dune build]
-> installed ppx_derivers.1.2.1
Processing 24/36: [cppo: dune build] [ocaml-compiler-libs: dune build] [ocaml-migrate-parsetree: dune build] [result: dune build] [sexplib0: dune build] [stdlib-shims: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "result" "-j" "255" (CWD=/home/opam/.opam/4.12/.opam-switch/build/result.1.5)
-> compiled  result.1.5
Processing 24/36: [cppo: dune build] [ocaml-compiler-libs: dune build] [ocaml-migrate-parsetree: dune build] [sexplib0: dune build] [stdlib-shims: dune build]
-> installed result.1.5
Processing 25/36: [cppo: dune build] [ocaml-compiler-libs: dune build] [ocaml-migrate-parsetree: dune build] [sexplib0: dune build] [stdlib-shims: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "stdlib-shims" "-j" "255" (CWD=/home/opam/.opam/4.12/.opam-switch/build/stdlib-shims.0.3.0)
-> compiled  stdlib-shims.0.3.0
Processing 25/36: [cppo: dune build] [ocaml-compiler-libs: dune build] [ocaml-migrate-parsetree: dune build] [sexplib0: dune build]
-> installed stdlib-shims.0.3.0
Processing 26/36: [cppo: dune build] [ocaml-compiler-libs: dune build] [ocaml-migrate-parsetree: dune build] [sexplib0: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "sexplib0" "-j" "255" (CWD=/home/opam/.opam/4.12/.opam-switch/build/sexplib0.v0.16.0)
-> compiled  sexplib0.v0.16.0
Processing 26/36: [cppo: dune build] [ocaml-compiler-libs: dune build] [ocaml-migrate-parsetree: dune build]
-> installed sexplib0.v0.16.0
Processing 27/36: [cppo: dune build] [ocaml-compiler-libs: dune build] [ocaml-migrate-parsetree: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "ocaml-compiler-libs" "-j" "255" "@install" (CWD=/home/opam/.opam/4.12/.opam-switch/build/ocaml-compiler-libs.v0.12.4)
-> compiled  ocaml-compiler-libs.v0.12.4
Processing 27/36: [cppo: dune build] [ocaml-migrate-parsetree: dune build]
-> installed ocaml-compiler-libs.v0.12.4
Processing 28/36: [cppo: dune build] [ocaml-migrate-parsetree: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "ocaml-migrate-parsetree" "-j" "255" (CWD=/home/opam/.opam/4.12/.opam-switch/build/ocaml-migrate-parsetree.2.4.0)
-> compiled  ocaml-migrate-parsetree.2.4.0
Processing 28/36: [cppo: dune build]
-> installed ocaml-migrate-parsetree.2.4.0
Processing 29/36: [cppo: dune build]
Processing 30/36: [cppo: dune build] [ppxlib: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "cppo" "-j" "255" (CWD=/home/opam/.opam/4.12/.opam-switch/build/cppo.1.6.9)
-> compiled  cppo.1.6.9
Processing 30/36: [ppxlib: dune build]
-> installed cppo.1.6.9
Processing 31/36: [ppxlib: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "ppxlib" "-j" "255" "@install" (CWD=/home/opam/.opam/4.12/.opam-switch/build/ppxlib.0.22.2)
-> compiled  ppxlib.0.22.2
-> installed ppxlib.0.22.2
Processing 33/36: [ppx_deriving: dune build]
+ /home/opam/.opam/opam-init/hooks/sandbox.sh "build" "dune" "build" "-p" "ppx_deriving" "-j" "255" (CWD=/home/opam/.opam/4.12/.opam-switch/build/ppx_deriving.5.2.1)
-> compiled  ppx_deriving.5.2.1
-> installed ppx_deriving.5.2.1

#=== ERROR while fetching sources for visitors.20210316 =======================#
OpamSolution.Fetch_fail("https://gitlab.inria.fr/fpottier/visitors/-/archive/20210316/archive.tar.gz (Curl failed: \"/usr/bin/curl --write-out %{http_code}\\\\n --retry 3 --retry-delay 2 --user-agent opam/2.2.0~alpha -L -o /home/opam/.opam/4.12/.opam-switch/sources/visitors.20210316/archive.tar.gz.part -- https://gitlab.inria.fr/fpottier/visitors/-/archive/20210316/archive.tar.gz\" exited with code 7)")


<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
+- The following actions failed
| - fetch visitors 20210316
+- 
+- The following changes have been performed
| - install cppo                    1.6.9
| - install dune                    3.9.0
| - install ocaml-compiler-libs     v0.12.4
| - install ocaml-migrate-parsetree 2.4.0
| - install ocamlfind               1.9.6
| - install ppx_derivers            1.2.1
| - install ppx_deriving            5.2.1
| - install ppxlib                  0.22.2
| - install result                  1.5
| - install sexplib0                v0.16.0
| - install stdlib-shims            0.3.0
+- 
# Run eval $(opam env) to update the current shell environment

The former state can be restored with:
    /usr/bin/opam switch import "/home/opam/.opam/4.12/.opam-switch/backup/state-20230702210937.export"
'opam install -vy visitors.20210316' failed.
"/bin/bash" "-c" "
opam remove -y "visitors.20210316"
opam install -vy "visitors.20210316"
res=$?
if [ $res = 31 ]; then
    if opam show -f x-ci-accept-failures: "visitors.20210316" | 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 40
Failed: Build failed