2026-06-20 16:55.50: New job: build multicont.1.0.2 (a1699c546ef1)
2026-06-20 16:55.50: Waiting for resource in pool day11-builds
2026-06-20 17:18.54: Got resource from pool day11-builds
2026-06-20 17:18.54: [profile full] build multicont.1.0.2
2026-06-20 17:18.54: build multicont.1.0.2 (a1699c546ef1)
=== DEPENDENCIES (9 transitive) ===
  base-threads.base                                  b7164ff76afe
  base-unix.base                                     839dc585f12d
  compiler-cloning.enabled                           0d2606125f88
  csexp.1.5.2                                        315ecef51574
  dune.3.23.1                                        dbfeecb5ca10
  dune-configurator.3.23.1                           8afe79196456
  ocaml.5.5.0                                        1b4132bddf48
  ocaml-base-compiler.5.5.0                          1901c3a760c1
  ocaml-compiler.5.5.0                               5f593a0b4a8c
=== STDOUT ===
Processing: [default: loading data]
[multicont.1.0.2: dl]
[multicont.1.0.2: extract]
-> retrieved multicont.1.0.2  (https://opam.ocaml.org/cache)
[multicont: dune build]
+ /home/opam/.opam/default/bin/dune "build" "-p" "multicont" "-j" "39" "@install" (CWD=/home/opam/.opam/default/.opam-switch/build/multicont.1.0.2)
- (cd _build/default/lib && /usr/bin/gcc -O2 -fno-strict-aliasing -fwrapv -fPIC -pthread -D_FILE_OFFSET_BITS=64 -Wall -fdiagnostics-color=always -g -I /home/opam/.opam/default/lib/ocaml -o multicont_stubs_byte.o -c multicont_stubs.c)
- multicont_stubs.c: In function 'multicont_clone_continuation':
- multicont_stubs.c:114:7: warning: implicit declaration of function 'memcpy' [-Wimplicit-function-declaration]
-   114 |       memcpy(Stack_high(clone) - space_used,
-       |       ^~~~~~
- multicont_stubs.c:17:1: note: include '<string.h>' or provide a declaration of 'memcpy'
-    16 | #include "fiber_primitives.h" // provides [MULTICONT_NEXT_FIBER_ID]
-   +++ |+#include <string.h>
-    17 |                               // generator.
- multicont_stubs.c:114:7: warning: incompatible implicit declaration of built-in function 'memcpy' [-Wbuiltin-declaration-mismatch]
-   114 |       memcpy(Stack_high(clone) - space_used,
-       |       ^~~~~~
- multicont_stubs.c:114:7: note: include '<string.h>' or provide a declaration of 'memcpy'
- (cd _build/default/lib && /usr/bin/gcc -O2 -fno-strict-aliasing -fwrapv -fPIC -pthread -D_FILE_OFFSET_BITS=64 -Wall -fdiagnostics-color=always -DNATIVE_CODE -g -I /home/opam/.opam/default/lib/ocaml -o multicont_stubs_native.o -c multicont_stubs.c)
- multicont_stubs.c: In function 'multicont_clone_continuation':
- multicont_stubs.c:114:7: warning: implicit declaration of function 'memcpy' [-Wimplicit-function-declaration]
-   114 |       memcpy(Stack_high(clone) - space_used,
-       |       ^~~~~~
- multicont_stubs.c:17:1: note: include '<string.h>' or provide a declaration of 'memcpy'
-    16 | #include "fiber_primitives.h" // provides [MULTICONT_NEXT_FIBER_ID]
-   +++ |+#include <string.h>
-    17 |                               // generator.
- multicont_stubs.c:114:7: warning: incompatible implicit declaration of built-in function 'memcpy' [-Wbuiltin-declaration-mismatch]
-   114 |       memcpy(Stack_high(clone) - space_used,
-       |       ^~~~~~
- multicont_stubs.c:114:7: note: include '<string.h>' or provide a declaration of 'memcpy'
- File "lib/dune", lines 1-14, characters 0-317:
-  1 | (library
-  2 |  (name multicont)
-  3 |  (public_name multicont)
- ....
- 12 |   (mode native)
- 13 |   (flags :standard (:include c_native_flags.sexp))
- 14 |   (names multicont_stubs)))
- (cd _build/default && /home/opam/.opam/default/bin/ocamlopt.opt -w -40 -g -shared -linkall -I lib -o lib/multicont.cmxs lib/multicont.cmxa)
- /usr/bin/ld: cannot find -lmulticont_stubs_native: No such file or directory
- collect2: error: ld returned 1 exit status
- File "caml_startup", line 1:
- Error: Error during linking (exit code 1)
[ERROR] The compilation of multicont.1.0.2 failed at "dune build -p multicont -j 39 @install".
build failed... 

=== STDERR ===

2026-06-20 17:19.21: FAILED: build multicont.1.0.2
2026-06-20 17:19.21: Job failed: build failed: multicont.1.0.2