ubuntu-24.04-5.3_opam-2.3

2025-04-19 10:14.04: New job: test patricoferris/ppxlib https://github.com/patricoferris/ppxlib.git#refs/heads/ci (dd2e536f5c4aa7758d5e8c2af6f8c86901b46205) (linux-x86_64:ubuntu-24.04-5.3_opam-2.3)
Base: ocaml/opam:ubuntu-24.04-ocaml-5.3@sha256:d489dc08d35d42ef15e579926446ac9f1e1451973bb3b37fc38464b7d93ed43e
Opam project build


To reproduce locally:


git clone --recursive "https://github.com/patricoferris/ppxlib.git" -b "ci" && cd "ppxlib" && git reset --hard dd2e536f
cat > Dockerfile <<'END-OF-DOCKERFILE'
FROM ocaml/opam:ubuntu-24.04-ocaml-5.3@sha256:d489dc08d35d42ef15e579926446ac9f1e1451973bb3b37fc38464b7d93ed43e
# ubuntu-24.04-5.3_opam-2.3
USER 1000:1000
ENV CLICOLOR_FORCE="1"
ENV OPAMCOLOR="always"
WORKDIR /src
RUN sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam
RUN opam init --reinit -ni
RUN uname -rs && opam exec -- ocaml -version && opam --version
WORKDIR /src
RUN sudo chown opam /src
RUN cd ~/opam-repository && (git cat-file -e 442eddb8a363418dcb02e519972818da08bb7cd4 || git fetch origin master) && git reset -q --hard 442eddb8a363418dcb02e519972818da08bb7cd4 && git log --no-decorate -n1 --oneline && opam update -u
COPY --chown=1000:1000 ppxlib.opam ppxlib-tools.opam ppxlib-bench.opam ./
RUN opam pin add -yn ppxlib.dev './' && \
opam pin add -yn ppxlib-tools.dev './' && \
opam pin add -yn ppxlib-bench.dev './'
RUN echo '(lang dune 3.0)' > './dune-project'
ENV DEPS="base.v0.17.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cinaps.v0.15.1 cmdliner.1.3.0 csexp.1.5.2 dune.3.18.1 dune-configurator.3.18.1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml_intrinsics_kernel.v0.17.1 ocamlfind.1.9.8 ppx_derivers.1.2.1 re.1.12.0 seq.base sexplib0.v0.17.0 stdlib-shims.0.3.0 yojson.2.2.2"
ENV CI="true"
ENV OCAMLCI="true"
RUN opam update --depexts && opam install --cli=2.3 --depext-only -y ppxlib.dev ppxlib-tools.dev ppxlib-bench.dev $DEPS
RUN opam install $DEPS
COPY --chown=1000:1000 . /src
RUN opam exec -- dune build @install @check @runtest && rm -rf _build


END-OF-DOCKERFILE
docker build .
END-REPRO-BLOCK


2025-04-19 10:14.04: Using cache hint "patricoferris/ppxlib-ocaml/opam:ubuntu-24.04-ocaml-5.3@sha256:d489dc08d35d42ef15e579926446ac9f1e1451973bb3b37fc38464b7d93ed43e-ubuntu-24.04-5.3_opam-2.3-3c965630631cd47442dbfd9233049ef4"
2025-04-19 10:14.04: Using OBuilder spec:
((from ocaml/opam:ubuntu-24.04-ocaml-5.3@sha256:d489dc08d35d42ef15e579926446ac9f1e1451973bb3b37fc38464b7d93ed43e)
(comment ubuntu-24.04-5.3_opam-2.3)
(user (uid 1000) (gid 1000))
(env CLICOLOR_FORCE 1)
(env OPAMCOLOR always)
(workdir /src)
(run (shell "sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam"))
(run (shell "opam init --reinit -ni"))
(run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
(workdir /src)
(run (shell "sudo chown opam /src"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 442eddb8a363418dcb02e519972818da08bb7cd4 || git fetch origin master) && git reset -q --hard 442eddb8a363418dcb02e519972818da08bb7cd4 && git log --no-decorate -n1 --oneline && opam update -u"))
(copy (src ppxlib.opam ppxlib-tools.opam ppxlib-bench.opam) (dst ./))
(run (network host)
(shell  "opam pin add -yn ppxlib.dev './' && \
\nopam pin add -yn ppxlib-tools.dev './' && \
\nopam pin add -yn ppxlib-bench.dev './'"))
(run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
(env DEPS "base.v0.17.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cinaps.v0.15.1 cmdliner.1.3.0 csexp.1.5.2 dune.3.18.1 dune-configurator.3.18.1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml_intrinsics_kernel.v0.17.1 ocamlfind.1.9.8 ppx_derivers.1.2.1 re.1.12.0 seq.base sexplib0.v0.17.0 stdlib-shims.0.3.0 yojson.2.2.2")
(env CI true)
(env OCAMLCI true)
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam update --depexts && opam install --cli=2.3 --depext-only -y ppxlib.dev ppxlib-tools.dev ppxlib-bench.dev $DEPS"))
(run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install $DEPS"))
(copy (src .) (dst /src))
(run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
)


2025-04-19 10:14.04: Waiting for resource in pool OCluster
2025-04-19 10:14.05: Waiting for worker…
2025-04-19 10:14.05: Got resource from pool OCluster
Building on x86-bm-c2.sw.ocaml.org
HEAD is now at 68af533 Bump trunk CI to 5.4.0
HEAD is now at dd2e536 Support OCaml 5.4


(from ocaml/opam:ubuntu-24.04-ocaml-5.3@sha256:d489dc08d35d42ef15e579926446ac9f1e1451973bb3b37fc38464b7d93ed43e)
2025-04-19 10:14.57 ---> saved as "5cdc6b19aa74a04106439c2ab4f9641e4391b28db73c0dba428e56fe10bc815f"


/: (comment ubuntu-24.04-5.3_opam-2.3)


/: (user (uid 1000) (gid 1000))


/: (env CLICOLOR_FORCE 1)


/: (env OPAMCOLOR always)


/: (workdir /src)


/src: (run (shell "sudo ln -f /usr/bin/opam-2.3 /usr/bin/opam"))
2025-04-19 10:14.57 ---> saved as "92a4d686f065f1b60c86513f8c4f528eff886882887edd96af975e83c6fda3ef"


/src: (run (shell "opam init --reinit -ni"))
Configuring from /home/opam/.opamrc and then 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.


This development version of opam requires an update to the layout of /home/opam/.opam from version 2.0 to version 2.2, which can't be reverted.
You may want to back it up before going further.


Continue? [y/n] y
[NOTE] The 'jobs' option was reset, its value was 255 and its new value will vary according to the current number of cores on your machine. You can restore the fixed value using:
opam option jobs=255 --global
Format upgrade done.


<><> Updating repositories ><><><><><><><><><><><><><><><><><><><><><><><><><><>
[default] Initialised
2025-04-19 10:15.34 ---> saved as "565d93d2e30334d9cb22ed06e374ce8a919e9dd4cdb6555cf9ffb07acd793b7b"


/src: (run (shell "uname -rs && opam exec -- ocaml -version && opam --version"))
Linux 5.15.0-134-generic
The OCaml toplevel, version 5.3.0
2.3.0
2025-04-19 10:15.35 ---> saved as "22b1398d5b2c5b5e3158d39b042f0f0114b7ac83119fae9d1528a5c3214965d0"


/src: (workdir /src)


/src: (run (shell "sudo chown opam /src"))
2025-04-19 10:15.35 ---> saved as "4f4f8be9b9669e5b3f4c186a5844e041536e4ac392f9ece9d2018e2281bc72c1"


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "cd ~/opam-repository && (git cat-file -e 442eddb8a363418dcb02e519972818da08bb7cd4 || git fetch origin master) && git reset -q --hard 442eddb8a363418dcb02e519972818da08bb7cd4 && git log --no-decorate -n1 --oneline && opam update -u"))
From https://github.com/ocaml/opam-repository
* branch                  master     -> FETCH_HEAD
da74d7829f..999bff3ed8  master     -> origin/master
442eddb8a3 Merge pull request #27761 from maiste/release-dune-3.18.1


<><> Updating package repositories ><><><><><><><><><><><><><><><><><><><><><><>
[default] synchronised from git+file:///home/opam/opam-repository


Everything as up-to-date as possible (run with --verbose to show unavailable upgrades).
However, you may "opam upgrade" these packages explicitly, which will ask permission to downgrade or uninstall the conflicting packages.
Nothing to do.
# To update the current shell environment, run: eval $(opam env)
2025-04-19 10:16.04 ---> saved as "da4cc38c8c1e38da7699e8425afb5dc43e8ed28d8b3748a7302e08306135edf7"


/src: (copy (src ppxlib.opam ppxlib-tools.opam ppxlib-bench.opam) (dst ./))
2025-04-19 10:16.04 ---> saved as "c6c71f9263b72c42c1c60e798f74900388f2a4c880b124fe2462aa144107a403"


/src: (run (network host)
(shell  "opam pin add -yn ppxlib.dev './' && \
\nopam pin add -yn ppxlib-tools.dev './' && \
\nopam pin add -yn ppxlib-bench.dev './'"))
[ppxlib.dev] synchronised (file:///src)
ppxlib is now pinned to file:///src (version dev)
[ppxlib-tools.dev] synchronised (file:///src)
ppxlib-tools is now pinned to file:///src (version dev)
Package ppxlib-bench does not exist, create as a NEW package? [y/n] y
[ppxlib-bench.dev] synchronised (file:///src)
ppxlib-bench is now pinned to file:///src (version dev)
2025-04-19 10:16.10 ---> saved as "2297f7991624f3007e4a9ca8a97962c285c6aec701e62a6b23d92909ba31323d"


/src: (run (network host)
(shell "echo '(lang dune 3.0)' > './dune-project'"))
2025-04-19 10:16.11 ---> saved as "d16cbfeb21592c5ae65df411360e88210388c53d703ee4f04647948b4e09c588"


/src: (env DEPS "base.v0.17.1 base-bigarray.base base-domains.base base-effects.base base-nnp.base base-threads.base base-unix.base cinaps.v0.15.1 cmdliner.1.3.0 csexp.1.5.2 dune.3.18.1 dune-configurator.3.18.1 ocaml.5.3.0 ocaml-base-compiler.5.3.0 ocaml-compiler.5.3.0 ocaml-compiler-libs.v0.17.0 ocaml-config.3 ocaml-options-vanilla.1 ocaml_intrinsics_kernel.v0.17.1 ocamlfind.1.9.8 ppx_derivers.1.2.1 re.1.12.0 seq.base sexplib0.v0.17.0 stdlib-shims.0.3.0 yojson.2.2.2")


/src: (env CI true)


/src: (env OCAMLCI true)


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam update --depexts && opam install --cli=2.3 --depext-only -y ppxlib.dev ppxlib-tools.dev ppxlib-bench.dev $DEPS"))
+ /usr/bin/sudo "apt-get" "update"
- Get:1 http://security.ubuntu.com/ubuntu noble-security InRelease [126 kB]
- Get:2 http://security.ubuntu.com/ubuntu noble-security/universe amd64 Packages [1073 kB]
- Hit:3 http://archive.ubuntu.com/ubuntu noble InRelease
- Get:4 http://security.ubuntu.com/ubuntu noble-security/restricted amd64 Packages [1088 kB]
- Get:5 http://security.ubuntu.com/ubuntu noble-security/main amd64 Packages [941 kB]
- Get:6 http://archive.ubuntu.com/ubuntu noble-updates InRelease [126 kB]
- Get:7 http://archive.ubuntu.com/ubuntu noble-backports InRelease [126 kB]
- Get:8 http://archive.ubuntu.com/ubuntu noble-updates/universe amd64 Packages [1371 kB]
- Get:9 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 Packages [1294 kB]
- Get:10 http://archive.ubuntu.com/ubuntu noble-updates/restricted amd64 Packages [1206 kB]
- Get:11 http://archive.ubuntu.com/ubuntu noble-backports/universe amd64 Packages [31.8 kB]
- Fetched 7384 kB in 1s (6099 kB/s)
- Reading package lists...
- 


<><> Synchronising pinned packages ><><><><><><><><><><><><><><><><><><><><><><>
[ppxlib.dev] synchronised (file:///src)
[ppxlib-bench.dev] synchronised (file:///src)
[ppxlib-tools.dev] synchronised (file:///src)


[NOTE] Package ocaml-options-vanilla is already installed (current version is 1).
[NOTE] Package ocaml-config is already installed (current version is 3).
[NOTE] Package ocaml-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml is already installed (current version is 5.3.0).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-nnp is already installed (current version is base).
[NOTE] Package base-effects is already installed (current version is base).
[NOTE] Package base-domains is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).
2025-04-19 10:16.28 ---> saved as "fd9d3193c7cba61d85384a63eeb243ff9e1ea5e3369bc24e68dceac0e42052ce"


/src: (run (cache (opam-archives (target /home/opam/.opam/download-cache)))
(network host)
(shell "opam install $DEPS"))
[NOTE] Package ocaml-options-vanilla is already installed (current version is 1).
[NOTE] Package ocaml-config is already installed (current version is 3).
[NOTE] Package ocaml-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml-base-compiler is already installed (current version is 5.3.0).
[NOTE] Package ocaml is already installed (current version is 5.3.0).
[NOTE] Package base-unix is already installed (current version is base).
[NOTE] Package base-threads is already installed (current version is base).
[NOTE] Package base-nnp is already installed (current version is base).
[NOTE] Package base-effects is already installed (current version is base).
[NOTE] Package base-domains is already installed (current version is base).
[NOTE] Package base-bigarray is already installed (current version is base).
The following actions will be performed:
=== install 15 packages
- install base                    v0.17.1
- install cinaps                  v0.15.1
- install cmdliner                1.3.0
- install csexp                   1.5.2
- install dune                    3.18.1
- install dune-configurator       3.18.1
- install ocaml-compiler-libs     v0.17.0
- install ocaml_intrinsics_kernel v0.17.1
- install ocamlfind               1.9.8
- install ppx_derivers            1.2.1
- install re                      1.12.0
- install seq                     base
- install sexplib0                v0.17.0
- install stdlib-shims            0.3.0
- install yojson                  2.2.2


<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved cinaps.v0.15.1  (cached)
-> retrieved csexp.1.5.2  (cached)
-> retrieved base.v0.17.1  (cached)
-> retrieved cmdliner.1.3.0  (cached)
-> retrieved ocaml-compiler-libs.v0.17.0  (cached)
-> retrieved ocaml_intrinsics_kernel.v0.17.1  (cached)
-> retrieved ppx_derivers.1.2.1  (cached)
-> retrieved ocamlfind.1.9.8  (cached)
-> retrieved seq.base  (cached)
-> installed seq.base
-> retrieved re.1.12.0  (cached)
-> retrieved sexplib0.v0.17.0  (cached)
-> retrieved stdlib-shims.0.3.0  (cached)
-> retrieved yojson.2.2.2  (cached)
-> retrieved dune.3.18.1, dune-configurator.3.18.1  (cached)
-> installed cmdliner.1.3.0
-> installed ocamlfind.1.9.8
-> installed dune.3.18.1
-> installed ppx_derivers.1.2.1
-> installed csexp.1.5.2
-> installed ocaml-compiler-libs.v0.17.0
-> installed ocaml_intrinsics_kernel.v0.17.1
-> installed re.1.12.0
-> installed sexplib0.v0.17.0
-> installed stdlib-shims.0.3.0
-> installed yojson.2.2.2
-> installed cinaps.v0.15.1
-> installed dune-configurator.3.18.1
-> installed base.v0.17.1
Done.
# To update the current shell environment, run: eval $(opam env)
2025-04-19 10:17.23 ---> saved as "3b7d1e0b3409593fd816da29e8a434763e4a50a5c75fc10e03435633dcbaae48"


/src: (copy (src .) (dst /src))
2025-04-19 10:17.23 ---> saved as "3042d093237be8cadbdd230b6c6d8a8b37ee0a3fa40eabbf011da4af6e630d28"


/src: (run (shell "opam exec -- dune build @install @check @runtest && rm -rf _build"))
File "test/driver/stdin_input/test.t/run.t", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/.sandbox/14a97373de302369fc56f74909a3315b/default/test/driver/stdin_input/test.t/run.t _build/.sandbox/14a97373de302369fc56f74909a3315b/default/test/driver/stdin_input/test.t/run.t.corrected
diff --git a/_build/.sandbox/14a97373de302369fc56f74909a3315b/default/test/driver/stdin_input/test.t/run.t b/_build/.sandbox/14a97373de302369fc56f74909a3315b/default/test/driver/stdin_input/test.t/run.t.corrected
index d385654..7bc5379 100644
--- a/_build/.sandbox/14a97373de302369fc56f74909a3315b/default/test/driver/stdin_input/test.t/run.t
+++ b/_build/.sandbox/14a97373de302369fc56f74909a3315b/default/test/driver/stdin_input/test.t/run.t.corrected
@@ -17,4 +17,5 @@ We generate a binary AST file...
... and ensure the driver can also read it from stdin


$ cat binary_ast | ../identity_driver.exe -impl -
-  let b = 2
+  Segmentation fault
+  [139]
File "test/driver/source-quotation-in-errors/run.t", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/.sandbox/c1f83b986d4020b56e73b2f5b3263c7c/default/test/driver/source-quotation-in-errors/run.t _build/.sandbox/c1f83b986d4020b56e73b2f5b3263c7c/default/test/driver/source-quotation-in-errors/run.t.corrected
diff --git a/_build/.sandbox/c1f83b986d4020b56e73b2f5b3263c7c/default/test/driver/source-quotation-in-errors/run.t b/_build/.sandbox/c1f83b986d4020b56e73b2f5b3263c7c/default/test/driver/source-quotation-in-errors/run.t.corrected
index e644f3f..18283e2 100644
--- a/_build/.sandbox/c1f83b986d4020b56e73b2f5b3263c7c/default/test/driver/source-quotation-in-errors/run.t
+++ b/_build/.sandbox/c1f83b986d4020b56e73b2f5b3263c7c/default/test/driver/source-quotation-in-errors/run.t.corrected
@@ -38,8 +38,5 @@ We then call our raising driver on the binary AST, it should be able to report t
error with source quotation:


$ ./raising_driver.exe -impl file.pp.ml
-  File "file.ml", line 1, characters 8-16:
-  1 | let x = [%raise]
-              ^^^^^^^^
-  Error: An exception, raise be!
-  [1]
+  Segmentation fault
+  [139]
File "test/driver/error_embedding/test.t/run.t", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/.sandbox/6787c76a5f49a9184d8f5b50f1e5aac7/default/test/driver/error_embedding/test.t/run.t _build/.sandbox/6787c76a5f49a9184d8f5b50f1e5aac7/default/test/driver/error_embedding/test.t/run.t.corrected
diff --git a/_build/.sandbox/6787c76a5f49a9184d8f5b50f1e5aac7/default/test/driver/error_embedding/test.t/run.t b/_build/.sandbox/6787c76a5f49a9184d8f5b50f1e5aac7/default/test/driver/error_embedding/test.t/run.t.corrected
index dafee10..a53be98 100644
--- a/_build/.sandbox/6787c76a5f49a9184d8f5b50f1e5aac7/default/test/driver/error_embedding/test.t/run.t
+++ b/_build/.sandbox/6787c76a5f49a9184d8f5b50f1e5aac7/default/test/driver/error_embedding/test.t/run.t.corrected
@@ -14,8 +14,11 @@ The same is true when using the `-as-ppx` mode (note that the error is reported
by ocaml itself)


$ ocaml -ppx '../raiser.exe -as-ppx' impl.ml
-  File "./impl.ml", line 1, characters 8-16:
-  Error: Raising inside the rewriter
+  Segmentation fault
+  File "./impl.ml", line 1:
+  Error: Error while running external preprocessor
+  Command line: ../raiser.exe -as-ppx '/tmp/build_6dd139_dune/camlppx6eea72' '/tmp/build_6dd139_dune/camlppxa7af7a'
+  
[2]


Also exceptions raised in a preprocessor get embedded into an AST(while the
File "test/driver/standalone_run_as_ppx/run.t", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/.sandbox/aaa87f825cadafd84775d691b1a5abab/default/test/driver/standalone_run_as_ppx/run.t _build/.sandbox/aaa87f825cadafd84775d691b1a5abab/default/test/driver/standalone_run_as_ppx/run.t.corrected
diff --git a/_build/.sandbox/aaa87f825cadafd84775d691b1a5abab/default/test/driver/standalone_run_as_ppx/run.t b/_build/.sandbox/aaa87f825cadafd84775d691b1a5abab/default/test/driver/standalone_run_as_ppx/run.t.corrected
index e36c4bf..e841b6e 100644
--- a/_build/.sandbox/aaa87f825cadafd84775d691b1a5abab/default/test/driver/standalone_run_as_ppx/run.t
+++ b/_build/.sandbox/aaa87f825cadafd84775d691b1a5abab/default/test/driver/standalone_run_as_ppx/run.t.corrected
@@ -6,7 +6,12 @@ The rewriter gets applied when using `--as-ppx`


$ echo "let _ = [%print_hi]" > impl.ml
$ ocaml -ppx './print_stuff.exe --as-ppx' impl.ml
-  hi
+  Segmentation fault
+  File "./impl.ml", line 1:
+  Error: Error while running external preprocessor
+  Command line: ./print_stuff.exe --as-ppx '/tmp/build_6dd139_dune/camlppxeeb6b6' '/tmp/build_6dd139_dune/camlppx68a71f'
+  
+  [2]


If a non-compatible file gets fed, the file name is reported correctly


@@ -20,18 +25,31 @@ The ocaml.ppx.context attribute gets parsed correctly; in particular, the tool n


$ echo "let _ = [%print_tool_name]" > impl.ml
$ ocaml -ppx './print_stuff.exe --as-ppx' impl.ml
-  ocaml
+  Segmentation fault
+  File "./impl.ml", line 1:
+  Error: Error while running external preprocessor
+  Command line: ./print_stuff.exe --as-ppx '/tmp/build_6dd139_dune/camlppx59e48e' '/tmp/build_6dd139_dune/camlppx696418'
+  
+  [2]


The driver's `shared_args` arguments are taken into account. For example, `-loc-filename`


$ echo "let _ = [%print_fname]" > impl.ml
$ ocaml -ppx './print_stuff.exe --as-ppx -loc-filename new_fn.ml' impl.ml
-  new_fn.ml
+  Segmentation fault
+  File "./impl.ml", line 1:
+  Error: Error while running external preprocessor
+  Command line: ./print_stuff.exe --as-ppx -loc-filename new_fn.ml '/tmp/build_6dd139_dune/camlppx9e7456' '/tmp/build_6dd139_dune/camlppx7d9142'
+  
+  [2]


or `dont-apply`


$ echo "let _ = [%print_hi]" > impl.ml
$ ocaml -ppx './print_stuff.exe --as-ppx -dont-apply test' impl.ml
-  File "./impl.ml", line 1, characters 10-18:
-  Error: Uninterpreted extension 'print_hi'.
+  Segmentation fault
+  File "./impl.ml", line 1:
+  Error: Error while running external preprocessor
+  Command line: ./print_stuff.exe --as-ppx -dont-apply test '/tmp/build_6dd139_dune/camlppx0cfc63' '/tmp/build_6dd139_dune/camlppx52c409'
+  
[2]
File "test/driver/flag_cookie/run.t", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/.sandbox/fa186b14554bc779a02fbd247eb071fe/default/test/driver/flag_cookie/run.t _build/.sandbox/fa186b14554bc779a02fbd247eb071fe/default/test/driver/flag_cookie/run.t.corrected
diff --git a/_build/.sandbox/fa186b14554bc779a02fbd247eb071fe/default/test/driver/flag_cookie/run.t b/_build/.sandbox/fa186b14554bc779a02fbd247eb071fe/default/test/driver/flag_cookie/run.t.corrected
index d6c3fa5..b59028c 100644
--- a/_build/.sandbox/fa186b14554bc779a02fbd247eb071fe/default/test/driver/flag_cookie/run.t
+++ b/_build/.sandbox/fa186b14554bc779a02fbd247eb071fe/default/test/driver/flag_cookie/run.t.corrected
@@ -7,4 +7,9 @@ The cookie flag is taken into account, both by the main standalone
...and by the `-as-ppx` standalone


$ ocaml -ppx './print_cookie_driver.exe --as-ppx -cookie x=1' impl.ml
-  Value of cookie x: 1
+  Segmentation fault
+  File "./impl.ml", line 1:
+  Error: Error while running external preprocessor
+  Command line: ./print_cookie_driver.exe --as-ppx -cookie x=1 '/tmp/build_6dd139_dune/camlppx37ee30' '/tmp/build_6dd139_dune/camlppxf21484'
+  
+  [2]
File "test/driver/run_as_ppx_rewriter/run.t", line 1, characters 0-0:
/usr/bin/git --no-pager diff --no-index --color=always -u _build/.sandbox/1690c977a6e9681449d89204bb34cc74/default/test/driver/run_as_ppx_rewriter/run.t _build/.sandbox/1690c977a6e9681449d89204bb34cc74/default/test/driver/run_as_ppx_rewriter/run.t.corrected
diff --git a/_build/.sandbox/1690c977a6e9681449d89204bb34cc74/default/test/driver/run_as_ppx_rewriter/run.t b/_build/.sandbox/1690c977a6e9681449d89204bb34cc74/default/test/driver/run_as_ppx_rewriter/run.t.corrected
index a9a0d71..c5f42f6 100644
--- a/_build/.sandbox/1690c977a6e9681449d89204bb34cc74/default/test/driver/run_as_ppx_rewriter/run.t
+++ b/_build/.sandbox/1690c977a6e9681449d89204bb34cc74/default/test/driver/run_as_ppx_rewriter/run.t.corrected
@@ -10,23 +10,32 @@ The registered rewriters get applied when using `run_as_ppx_rewriter` as entry p
> let () = [%print_bye]
> EOF
$ ocaml -ppx './print_greetings.exe' file.ml
-  hi
-  bye
+  Segmentation fault
+  File "./file.ml", line 1:
+  Error: Error while running external preprocessor
+  Command line: ./print_greetings.exe '/tmp/build_6dd139_dune/camlppxa11823' '/tmp/build_6dd139_dune/camlppxaa44fc'
+  
+  [2]


The driver's `shared_args` are taken into account, such as `-apply`...


$ ocaml -ppx './print_greetings.exe -apply print_hi' file.ml
-  hi
-  File "./file.ml", line 2, characters 11-20:
-  Error: Uninterpreted extension 'print_bye'.
+  Segmentation fault
+  File "./file.ml", line 1:
+  Error: Error while running external preprocessor
+  Command line: ./print_greetings.exe -apply print_hi '/tmp/build_6dd139_dune/camlppx4e44ff' '/tmp/build_6dd139_dune/camlppx8fff0c'
+  
[2]


... and `-check`


$ echo "[@@@attr non_registered_attr]" > attribute_file.ml
$ ocaml -ppx './print_greetings.exe -check' attribute_file.ml
-  File "./attribute_file.ml", line 1, characters 4-8:
-  Error: Attribute `attr' was not used
+  Segmentation fault
+  File "./attribute_file.ml", line 1:
+  Error: Error while running external preprocessor
+  Command line: ./print_greetings.exe -check '/tmp/build_6dd139_dune/camlppxcc61dc' '/tmp/build_6dd139_dune/camlppx3ca41d'
+  
[2]


"/usr/bin/env" "bash" "-c" "opam exec -- dune build @install @check @runtest && rm -rf _build" failed with exit status 1
2025-04-19 10:17.50: Job failed: Failed: Build failed