2026-09-28 15:51.07: New job: build miou.0.10.1 (7c7091151723)
2026-09-28 15:51.07: Waiting for resource in pool day11-builds
2026-09-28 15:53.49: Got resource from pool day11-builds
2026-09-28 15:53.49: [profile oxcaml-odoc-master] build miou.0.10.1
2026-09-28 15:53.49: build miou.0.10.1 (7c7091151723)
=== DEPENDENCIES (11 transitive) ===
  base-threads.base                                  ddcab511c589
  base-unix.base                                     742554e1dbc2
  conf-autoconf.1                                    43fe4a407b7a
  conf-which.1                                       5fccb3a41099
  csexp.1.5.2                                        ac277789f184
  dune.3.22.2+ox                                     057b1ed5957b
  dune-configurator.3.22.2+ox                        86e12d406fa5
  ocaml.5.4.0                                        74a2c67841c6
  ocaml-config.3                                     d58db97ddfef
  ocaml-variants.5.4.0+ox                            4babdc19da91
  oxcaml-compiler.5.4.0-ox7                          42053eeff39a
=== STDOUT ===
Processing: [default: loading data]
[miou.0.10.1: dl]
[miou.0.10.1: extract]
-> retrieved miou.0.10.1  (https://opam.ocaml.org/cache)
[miou: dune build]
+ /home/opam/.opam/default/bin/dune "build" "-p" "miou" "-j" "39" (CWD=/home/opam/.opam/default/.opam-switch/build/miou.0.10.1)
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -w -40 -g -bin-annot -bin-annot-occurrences -bin-annot-cms -I lib/.sync.objs/byte -I lib/.backoff.objs/byte -cmi-file lib/.sync.objs/byte/miou_sync.cmi -no-alias-deps -o lib/.sync.objs/byte/miou_sync.cmo -c -impl lib/miou_sync.ml)
- File "lib/miou_sync.ml", line 73, characters 17-31:
- 73 |     | Initial -> Effect.perform (Await t)
-                       ^^^^^^^^^^^^^^
- Alert unsafe_effects: Stdlib.Effect.perform
- Use [Effect.Safe.perform]. [Effect.perform] may not function correctly on Js_of_ocaml
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -w -40 -g -bin-annot -bin-annot-occurrences -bin-annot-cms -I lib/.miou.objs/byte -I lib/.backoff.objs/byte -I lib/.sync.objs/byte -cmi-file lib/.miou.objs/byte/miou_state.cmi -no-alias-deps -o lib/.miou.objs/byte/miou_state.cmo -c -impl lib/miou_state.ml)
- File "lib/miou_state.ml", line 97, characters 21-35:
- 97 |              let v = Effect.perform eff in
-                           ^^^^^^^^^^^^^^
- Alert unsafe_effects: Stdlib.Effect.perform
- Use [Effect.Safe.perform]. [Effect.perform] may not function correctly on Js_of_ocaml
- 
- File "lib/miou_state.ml", line 126, characters 43-57:
- 126 |          | Perform e -> unhandled_with fn (Effect.perform e)
-                                                  ^^^^^^^^^^^^^^
- Alert unsafe_effects: Stdlib.Effect.perform
- Use [Effect.Safe.perform]. [Effect.perform] may not function correctly on Js_of_ocaml
- 
- File "lib/miou_state.ml", line 142, characters 17-31:
- 142 |          let v = Effect.perform e in
-                        ^^^^^^^^^^^^^^
- Alert unsafe_effects: Stdlib.Effect.perform
- Use [Effect.Safe.perform]. [Effect.perform] may not function correctly on Js_of_ocaml
- (cd _build/default && /home/opam/.opam/default/bin/ocamlopt.opt -w -40 -g -I lib/.sync.objs/byte -I lib/.sync.objs/native -I lib/.backoff.objs/byte -I lib/.backoff.objs/native -cmi-file lib/.sync.objs/byte/miou_sync.cmi -no-alias-deps -o lib/.sync.objs/native/miou_sync.cmx -c -impl lib/miou_sync.ml)
- File "lib/miou_sync.ml", line 73, characters 17-31:
- 73 |     | Initial -> Effect.perform (Await t)
-                       ^^^^^^^^^^^^^^
- Alert unsafe_effects: Stdlib.Effect.perform
- Use [Effect.Safe.perform]. [Effect.perform] may not function correctly on Js_of_ocaml
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -w -40 -g -bin-annot -bin-annot-occurrences -bin-annot-cms -I lib/.miou.objs/byte -I lib/.backoff.objs/byte -I lib/.sync.objs/byte -cmi-file lib/.miou.objs/byte/miou.cmi -no-alias-deps -o lib/.miou.objs/byte/miou.cmo -c -impl lib/miou.ml)
- File "lib/miou.ml", line 47, characters 2-27:
- 47 |   Printexc.register_printer @@ function
-        ^^^^^^^^^^^^^^^^^^^^^^^^^
- Alert unsafe_multidomain: Stdlib.Printexc.register_printer
- Use [Printexc.Safe.register_printer].
- 
- File "lib/miou.ml", line 894, characters 23-24:
- 894 |       | (Domain_create _ | Domain_task _) as elt ->
-                              ^
- Error: This pattern matches values of type $a t
-        but a pattern was expected which matches values of type 'a t
-        The type constructor $a would escape its scope
- (cd _build/default && /home/opam/.opam/default/bin/ocamlopt.opt -w -40 -g -I lib/.miou.objs/byte -I lib/.miou.objs/native -I lib/.backoff.objs/byte -I lib/.backoff.objs/native -I lib/.sync.objs/byte -I lib/.sync.objs/native -cmi-file lib/.miou.objs/byte/miou_state.cmi -no-alias-deps -o lib/.miou.objs/native/miou_state.cmx -c -impl lib/miou_state.ml)
- File "lib/miou_state.ml", line 97, characters 21-35:
- 97 |              let v = Effect.perform eff in
-                           ^^^^^^^^^^^^^^
- Alert unsafe_effects: Stdlib.Effect.perform
- Use [Effect.Safe.perform]. [Effect.perform] may not function correctly on Js_of_ocaml
- 
- File "lib/miou_state.ml", line 126, characters 43-57:
- 126 |          | Perform e -> unhandled_with fn (Effect.perform e)
-                                                  ^^^^^^^^^^^^^^
- Alert unsafe_effects: Stdlib.Effect.perform
- Use [Effect.Safe.perform]. [Effect.perform] may not function correctly on Js_of_ocaml
- 
- File "lib/miou_state.ml", line 142, characters 17-31:
- 142 |          let v = Effect.perform e in
-                        ^^^^^^^^^^^^^^
- Alert unsafe_effects: Stdlib.Effect.perform
- Use [Effect.Safe.perform]. [Effect.perform] may not function correctly on Js_of_ocaml
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -w -40 -g -bin-annot -bin-annot-occurrences -bin-annot-cms -I lib/.miou_unix.objs/byte -I /home/opam/.opam/default/lib/ocaml/unix -I lib/.backoff.objs/byte -I lib/.bitv.objs/byte -I lib/.miou.objs/byte -I lib/.sync.objs/byte -cmi-file lib/.miou_unix.objs/byte/miou_unix.cmi -no-alias-deps -o lib/.miou_unix.objs/byte/miou_unix.cmo -c -impl lib/miou_unix.ml)
- File "lib/miou_unix.ml", line 153, characters 12-37:
- 153 |   let key = Stdlib.Domain.DLS.new_key ~split_from_parent make in
-                   ^^^^^^^^^^^^^^^^^^^^^^^^^
- Alert unsafe_multidomain: Stdlib.Domain.DLS.new_key
- Use [Domain.Safe.DLS.new_key].
- 
- File "lib/miou_unix.ml", line 154, characters 12-33:
- 154 |   fun () -> Stdlib.Domain.DLS.get key
-                   ^^^^^^^^^^^^^^^^^^^^^
- Alert unsafe_multidomain: Stdlib.Domain.DLS.get
- Use [Domain.Safe.DLS.get].
- (cd _build/default && /home/opam/.opam/default/bin/ocamlopt.opt -w -40 -g -I lib/.miou.objs/byte -I lib/.miou.objs/native -I lib/.backoff.objs/byte -I lib/.backoff.objs/native -I lib/.sync.objs/byte -I lib/.sync.objs/native -cmi-file lib/.miou.objs/byte/miou.cmi -no-alias-deps -o lib/.miou.objs/native/miou.cmx -c -impl lib/miou.ml)
- File "lib/miou.ml", line 47, characters 2-27:
- 47 |   Printexc.register_printer @@ function
-        ^^^^^^^^^^^^^^^^^^^^^^^^^
- Alert unsafe_multidomain: Stdlib.Printexc.register_printer
- Use [Printexc.Safe.register_printer].
- 
- File "lib/miou.ml", line 894, characters 23-24:
- 894 |       | (Domain_create _ | Domain_task _) as elt ->
-                              ^
- Error: This pattern matches values of type $a t
-        but a pattern was expected which matches values of type 'a t
-        The type constructor $a would escape its scope
[ERROR] The compilation of miou.0.10.1 failed at "dune build -p miou -j 39".
build failed... 

=== STDERR ===

2026-09-28 15:54.07: FAILED: build miou.0.10.1
2026-09-28 15:54.07: Job failed: build failed: miou.0.10.1