Build:
  1. 0
2026-08-06 04:23.59: New job: build kafka_async.0.5 (44c24bd41f64)
2026-08-06 04:23.59: Waiting for resource in pool day11-builds
2026-08-06 04:31.45: Got resource from pool day11-builds
2026-08-06 04:31.45: [profile full] build kafka_async.0.5
2026-08-06 04:31.45: build kafka_async.0.5 (44c24bd41f64)
=== DEPENDENCIES (71 transitive) ===
  async.v0.14.0                                      2ea40b74e953
  async_kernel.v0.14.0                               610f405bb622
  async_rpc_kernel.v0.14.0                           26467a3835ec
  async_unix.v0.14.0                                 a90f7296f1dc
  base.v0.14.4                                       129fcf7c5059
  base-threads.base                                  4e0218232a65
  base-unix.base                                     2d2c0bf34146
  base_bigstring.v0.14.0                             156a4398c107
  base_quickcheck.v0.14.1                            13bf1acd44d9
  bin_prot.v0.14.1                                   037a14b5ae0c
  conf-pkg-config.5                                  4a77ab8734e0
  conf-zlib.1                                        1afa441829d8
  core.v0.14.1                                       c09026559897
  core_kernel.v0.14.2                                27b5cc630024
  csexp.1.5.2                                        136f153f40fb
  dune.3.24.2                                        c47c4480d89f
  dune-configurator.3.24.2                           3635bc493d26
  fieldslib.v0.14.0                                  5df6c5a9f354
  jane-street-headers.v0.14.0                        7317329d193c
  jst-config.v0.14.1                                 15e161c144ac
  kafka.0.5                                          427cb6a9ebc5
  num.1.6                                            84b764fc3b6c
  ocaml.4.14.4                                       7d294a5c2239
  ocaml-base-compiler.4.14.4                         b68ee36ba77d
  ocaml-compiler-libs.v0.12.4                        82766dc72eda
  ocaml-config.2                                     ed577e2d7ebe
  octavius.1.2.2                                     d50f0045922d
  parsexp.v0.14.2                                    2925905eb083
  ppx_assert.v0.14.0                                 f7121a076f6d
  ppx_base.v0.14.0                                   e173ea515866
  ppx_bench.v0.14.1                                  64e87f6999eb
  ppx_bin_prot.v0.14.0                               9d111c03fa5b
  ppx_cold.v0.14.0                                   56809649f7ba
  ppx_compare.v0.14.0                                95b5a1e36a35
  ppx_custom_printf.v0.14.1                          911298e27e1e
  ppx_derivers.1.2.1                                 97954ab1a88b
  ppx_enumerate.v0.14.0                              bf1429d136db
  ppx_expect.v0.14.2                                 0d6eb09ffd9e
  ppx_fields_conv.v0.14.2                            655622f76683
  ppx_fixed_literal.v0.14.0                          152cfcf7016b
  ppx_hash.v0.14.0                                   9966695e3341
  ppx_here.v0.14.0                                   d85a75b17cc1
  ppx_inline_test.v0.14.1                            64f09313f5bd
  ppx_jane.v0.14.0                                   10c6e5afc8b8
  ppx_js_style.v0.14.1                               ca7a01958d71
  ppx_let.v0.14.0                                    3d0363834624
  ppx_module_timer.v0.14.0                           eb72e2f4472a
  ppx_optcomp.v0.14.3                                7f96ea4f8cd4
  ppx_optional.v0.14.0                               3b5c6dd387d4
  ppx_pipebang.v0.14.0                               f59e129a37a2
  ppx_sexp_conv.v0.14.3                              a405eed31be0
  ppx_sexp_message.v0.14.1                           0830f9dc9239
  ppx_sexp_value.v0.14.0                             4b94d34144d2
  ppx_stable.v0.14.1                                 9c336b4576c9
  ppx_string.v0.14.1                                 f2508081f361
  ppx_typerep_conv.v0.14.2                           cf7bd3e5737e
  ppx_variants_conv.v0.14.2                          a758747ba8f1
  ppxlib.0.25.1                                      a9c21c1e023c
  protocol_version_header.v0.14.0                    87943d3d37bb
  re.1.14.0                                          8f6f88abd59a
  sexplib.v0.14.0                                    5bde293b45fe
  sexplib0.v0.14.0                                   6d2005930e8d
  spawn.v0.17.0                                      36cb6e76aa9a
  splittable_random.v0.14.0                          d93ebd327f55
  stdio.v0.14.0                                      c55f620a3c69
  stdlib-shims.0.3.0                                 18488f9f9f6a
  textutils.v0.14.0                                  73ae8d197b51
  time_now.v0.14.0                                   5151531c0c2f
  timezone.v0.14.0                                   58422875a665
  typerep.v0.14.0                                    8236b8b5d792
  variantslib.v0.14.0                                f2337dae2db2
=== STDOUT ===
Processing: [default: loading data]
[kafka_async.0.5: extract]
-> retrieved kafka_async.0.5  (cached)
[kafka_async: dune build]
+ /home/opam/.opam/default/bin/dune "build" "-p" "kafka_async" "-j" "39" (CWD=/home/opam/.opam/default/.opam-switch/build/kafka_async.0.5)
- (cd _build/default/lib_async && /usr/bin/gcc -O2 -fno-strict-aliasing -fwrapv -pthread -fPIC -D_FILE_OFFSET_BITS=64 -O2 -fno-strict-aliasing -fwrapv -pthread -fPIC -g -I /home/opam/.opam/default/lib/ocaml -I /home/opam/.opam/default/lib/async -I /home/opam/.opam/default/lib/async/async_command -I /home/opam/.opam/default/lib/async/async_quickcheck -I /home/opam/.opam/default/lib/async/async_rpc -I /home/opam/.opam/default/lib/async_kernel -I /home/opam/.opam/default/lib/async_kernel/persistent_connection_kernel -I /home/opam/.opam/default/lib/async_rpc_kernel -I /home/opam/.opam/default/lib/async_unix -I /home/opam/.opam/default/lib/async_unix/thread_pool -I /home/opam/.opam/default/lib/async_unix/thread_safe_ivar -I /home/opam/.opam/default/lib/base -I /home/opam/.opam/default/lib/base/base_internalhash_types -I /home/opam/.opam/default/lib/base/caml -I /home/opam/.opam/default/lib/base/md5 -I /home/opam/.opam/default/lib/base/shadow_stdlib -I /home/opam/.opam/default/lib/base_bigstring -I /home/opam/.opam/default/lib/base_quickcheck -I /home/opam/.opam/default/lib/bin_prot -I /home/opam/.opam/default/lib/bin_prot/shape -I /home/opam/.opam/default/lib/core -I /home/opam/.opam/default/lib/core/bigstring_unix -I /home/opam/.opam/default/lib/core/error_checking_mutex -I /home/opam/.opam/default/lib/core/iobuf_unix -I /home/opam/.opam/default/lib/core/linux_ext -I /home/opam/.opam/default/lib/core/nano_mutex -I /home/opam/.opam/default/lib/core/squeue -I /home/opam/.opam/default/lib/core/time_stamp_counter -I /home/opam/.opam/default/lib/core/uuid -I /home/opam/.opam/default/lib/core_kernel -I /home/opam/.opam/default/lib/core_kernel/base_for_tests -I /home/opam/.opam/default/lib/core_kernel/bounded_int_table -I /home/opam/.opam/default/lib/core_kernel/caml_unix -I /home/opam/.opam/default/lib/core_kernel/flags -I /home/opam/.opam/default/lib/core_kernel/iobuf -I /home/opam/.opam/default/lib/core_kernel/moption -I /home/opam/.opam/default/lib/core_kernel/pairing_heap -I /home/opam/.opam/default/lib/core_kernel/sexp_hidden_in_test -I /home/opam/.opam/default/lib/core_kernel/thread_pool_cpu_affinity -I /home/opam/.opam/default/lib/core_kernel/thread_safe_queue -I /home/opam/.opam/default/lib/core_kernel/timing_wheel -I /home/opam/.opam/default/lib/core_kernel/tuple_pool -I /home/opam/.opam/default/lib/core_kernel/uopt -I /home/opam/.opam/default/lib/core_kernel/uuid -I /home/opam/.opam/default/lib/core_kernel/version_util -I /home/opam/.opam/default/lib/fieldslib -I /home/opam/.opam/default/lib/jane-street-headers -I /home/opam/.opam/default/lib/kafka -I /home/opam/.opam/default/lib/ocaml/threads -I /home/opam/.opam/default/lib/parsexp -I /home/opam/.opam/default/lib/ppx_assert/runtime-lib -I /home/opam/.opam/default/lib/ppx_bench/runtime-lib -I /home/opam/.opam/default/lib/ppx_compare/runtime-lib -I /home/opam/.opam/default/lib/ppx_enumerate/runtime-lib -I /home/opam/.opam/default/lib/ppx_expect/collector -I /home/opam/.opam/default/lib/ppx_expect/common -I /home/opam/.opam/default/lib/ppx_expect/config -I /home/opam/.opam/default/lib/ppx_expect/config_types -I /home/opam/.opam/default/lib/ppx_hash/runtime-lib -I /home/opam/.opam/default/lib/ppx_here/runtime-lib -I /home/opam/.opam/default/lib/ppx_inline_test/config -I /home/opam/.opam/default/lib/ppx_inline_test/runtime-lib -I /home/opam/.opam/default/lib/ppx_module_timer/runtime -I /home/opam/.opam/default/lib/ppx_sexp_conv/runtime-lib -I /home/opam/.opam/default/lib/protocol_version_header -I /home/opam/.opam/default/lib/sexplib -I /home/opam/.opam/default/lib/sexplib/unix -I /home/opam/.opam/default/lib/sexplib0 -I /home/opam/.opam/default/lib/spawn -I /home/opam/.opam/default/lib/splittable_random -I /home/opam/.opam/default/lib/stdio -I /home/opam/.opam/default/lib/time_now -I /home/opam/.opam/default/lib/timezone -I /home/opam/.opam/default/lib/typerep -I /home/opam/.opam/default/lib/variantslib -o ocaml_async_kafka.o -c ocaml_async_kafka.c)
- In file included from /home/opam/.opam/default/lib/ocaml/caml/memory.h:31,
-                  from ocaml_async_kafka.c:4:
- ocaml_async_kafka.c: In function 'ocaml_kafka_async_extract_message':
- /home/opam/.opam/default/lib/ocaml/caml/mlvalues.h:290:24: warning: passing argument 1 of 'memcpy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
-   290 | #define String_val(x) ((const char *) Bp_val(x))
-       |                       ~^~~~~~~~~~~~~~~~~~~~~~~~~
- ocaml_async_kafka.c:164:12: note: in expansion of macro 'String_val'
-   164 |     memcpy(String_val(caml_msg_payload), message->payload, message->len);
-       |            ^~~~~~~~~~
- In file included from ocaml_async_kafka.c:2:
- /usr/include/string.h:43:39: note: expected 'void * restrict' but argument is of type 'const char *'
-    43 | extern void *memcpy (void *__restrict __dest, const void *__restrict __src,
-       |                      ~~~~~~~~~~~~~~~~~^~~~~~
- /home/opam/.opam/default/lib/ocaml/caml/mlvalues.h:290:24: warning: passing argument 1 of 'memcpy' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
-   290 | #define String_val(x) ((const char *) Bp_val(x))
-       |                       ~^~~~~~~~~~~~~~~~~~~~~~~~~
- ocaml_async_kafka.c:170:14: note: in expansion of macro 'String_val'
-   170 |       memcpy(String_val(caml_key_payload), message->key, message->key_len);
-       |              ^~~~~~~~~~
- /usr/include/string.h:43:39: note: expected 'void * restrict' but argument is of type 'const char *'
-    43 | extern void *memcpy (void *__restrict __dest, const void *__restrict __src,
-       |                      ~~~~~~~~~~~~~~~~~^~~~~~
- ocaml_async_kafka.c: In function 'ocaml_kafka_async_produce':
- /home/opam/.opam/default/lib/ocaml/caml/mlvalues.h:290:23: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
-   290 | #define String_val(x) ((const char *) Bp_val(x))
-       |                       ^
- ocaml_async_kafka.c:234:19: note: in expansion of macro 'String_val'
-   234 |   void* payload = String_val(caml_msg);
-       |                   ^~~~~~~~~~
- ocaml_async_kafka.c:241:9: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
-   241 |     key = String_val(caml_key);
-       |         ^
- File "test_async/consumer/dune", line 2, characters 8-16:
- 2 |   (name consumer)
-             ^^^^^^^^
- (cd _build/default && /home/opam/.opam/default/bin/ocamlopt.opt -w -40 -g -o test_async/consumer/consumer.exe /home/opam/.opam/default/lib/base/base_internalhash_types/base_internalhash_types.cmxa -I /home/opam/.opam/default/lib/base/base_internalhash_types /home/opam/.opam/default/lib/base/caml/caml.cmxa /home/opam/.opam/default/lib/sexplib0/sexplib0.cmxa /home/opam/.opam/default/lib/base/shadow_stdlib/shadow_stdlib.cmxa /home/opam/.opam/default/lib/base/base.cmxa -I /home/opam/.opam/default/lib/base /home/opam/.opam/default/lib/ppx_sexp_conv/runtime-lib/ppx_sexp_conv_lib.cmxa /home/opam/.opam/default/lib/ppx_here/runtime-lib/ppx_here_lib.cmxa /home/opam/.opam/default/lib/ppx_inline_test/config/inline_test_config.cmxa /home/opam/.opam/default/lib/jane-street-headers/jane_street_headers.cmxa /home/opam/.opam/default/lib/ppx_compare/runtime-lib/ppx_compare_lib.cmxa /home/opam/.opam/default/lib/ppx_enumerate/runtime-lib/ppx_enumerate_lib.cmxa /home/opam/.opam/default/lib/ppx_hash/runtime-lib/ppx_hash_lib.cmxa /home/opam/.opam/default/lib/time_now/time_now.cmxa -I /home/opam/.opam/default/lib/time_now /home/opam/.opam/default/lib/ppx_inline_test/runtime-lib/ppx_inline_test_lib.cmxa /home/opam/.opam/default/lib/ppx_bench/runtime-lib/ppx_bench_lib.cmxa /home/opam/.opam/default/lib/ppx_assert/runtime-lib/ppx_assert_lib.cmxa /home/opam/.opam/default/lib/splittable_random/splittable_random.cmxa /home/opam/.opam/default/lib/fieldslib/fieldslib.cmxa /home/opam/.opam/default/lib/base_quickcheck/base_quickcheck.cmxa /home/opam/.opam/default/lib/base/md5/md5_lib.cmxa /home/opam/.opam/default/lib/variantslib/variantslib.cmxa /home/opam/.opam/default/lib/bin_prot/shape/bin_shape_lib.cmxa /home/opam/.opam/default/lib/bin_prot/bin_prot.cmxa -I /home/opam/.opam/default/lib/bin_prot /home/opam/.opam/default/lib/stdio/stdio.cmxa /home/opam/.opam/default/lib/ppx_module_timer/runtime/ppx_module_timer_runtime.cmxa /home/opam/.opam/default/lib/typerep/typerep_lib.cmxa /home/opam/.opam/default/lib/ppx_expect/common/expect_test_common.cmxa /home/opam/.opam/default/lib/ppx_expect/config_types/expect_test_config_types.cmxa /home/opam/.opam/default/lib/ppx_expect/collector/expect_test_collector.cmxa -I /home/opam/.opam/default/lib/ppx_expect/collector /home/opam/.opam/default/lib/ppx_expect/config/expect_test_config.cmxa /home/opam/.opam/default/lib/base_bigstring/base_bigstring.cmxa -I /home/opam/.opam/default/lib/base_bigstring /home/opam/.opam/default/lib/core_kernel/base_for_tests/base_for_tests.cmxa /home/opam/.opam/default/lib/ocaml/unix.cmxa -I /home/opam/.opam/default/lib/ocaml /home/opam/.opam/default/lib/ocaml/bigarray.cmxa -I /home/opam/.opam/default/lib/ocaml /home/opam/.opam/default/lib/parsexp/parsexp.cmxa /home/opam/.opam/default/lib/sexplib/sexplib.cmxa /home/opam/.opam/default/lib/core_kernel/core_kernel.cmxa -I /home/opam/.opam/default/lib/core_kernel /home/opam/.opam/default/lib/ocaml/threads/threads.cmxa -I /home/opam/.opam/default/lib/ocaml /home/opam/.opam/default/lib/core/error_checking_mutex/error_checking_mutex.cmxa -I /home/opam/.opam/default/lib/core/error_checking_mutex /home/opam/.opam/default/lib/core_kernel/caml_unix/caml_unix.cmxa /home/opam/.opam/default/lib/core_kernel/flags/flags.cmxa /home/opam/.opam/default/lib/core_kernel/version_util/version_util.cmxa -I /home/opam/.opam/default/lib/core_kernel/version_util /home/opam/.opam/default/lib/sexplib/unix/sexplib_unix.cmxa /home/opam/.opam/default/lib/spawn/spawn.cmxa -I /home/opam/.opam/default/lib/spawn /home/opam/.opam/default/lib/timezone/timezone.cmxa /home/opam/.opam/default/lib/core/core.cmxa -I /home/opam/.opam/default/lib/core /home/opam/.opam/default/lib/core_kernel/moption/moption.cmxa /home/opam/.opam/default/lib/core_kernel/tuple_pool/tuple_pool.cmxa /home/opam/.opam/default/lib/core_kernel/pairing_heap/pairing_heap.cmxa /home/opam/.opam/default/lib/core_kernel/sexp_hidden_in_test/sexp_hidden_in_test.cmxa /home/opam/.opam/default/lib/core_kernel/thread_pool_cpu_affinity/thread_pool_cpu_affinity.cmxa /home/opam/.opam/default/lib/core_kernel/uopt/uopt.cmxa /home/opam/.opam/default/lib/core_kernel/thread_safe_queue/thread_safe_queue.cmxa /home/opam/.opam/default/lib/core_kernel/timing_wheel/timing_wheel.cmxa /home/opam/.opam/default/lib/async_kernel/async_kernel.cmxa /home/opam/.opam/default/lib/core/bigstring_unix/bigstring_unix.cmxa -I /home/opam/.opam/default/lib/core/bigstring_unix /home/opam/.opam/default/lib/core_kernel/bounded_int_table/bounded_int_table.cmxa /home/opam/.opam/default/lib/core_kernel/iobuf/iobuf.cmxa /home/opam/.opam/default/lib/core/iobuf_unix/iobuf_unix.cmxa -I /home/opam/.opam/default/lib/core/iobuf_unix /home/opam/.opam/default/lib/core/nano_mutex/nano_mutex.cmxa /home/opam/.opam/default/lib/core/squeue/squeue.cmxa /home/opam/.opam/default/lib/core/linux_ext/linux_ext.cmxa -I /home/opam/.opam/default/lib/core/linux_ext /home/opam/.opam/default/lib/async_unix/thread_safe_ivar/thread_safe_ivar.cmxa /home/opam/.opam/default/lib/async_unix/thread_pool/thread_pool.cmxa /home/opam/.opam/default/lib/core/time_stamp_counter/time_stamp_counter.cmxa -I /home/opam/.opam/default/lib/core/time_stamp_counter /home/opam/.opam/default/lib/core_kernel/uuid/uuid.cmxa /home/opam/.opam/default/lib/core/uuid/uuid_unix.cmxa /home/opam/.opam/default/lib/async_unix/async_unix.cmxa -I /home/opam/.opam/default/lib/async_unix /home/opam/.opam/default/lib/async/async_command/async_command.cmxa /home/opam/.opam/default/lib/async/async_quickcheck/async_quickcheck.cmxa /home/opam/.opam/default/lib/async_kernel/persistent_connection_kernel/persistent_connection_kernel.cmxa /home/opam/.opam/default/lib/protocol_version_header/protocol_version_header.cmxa /home/opam/.opam/default/lib/async_rpc_kernel/async_rpc_kernel.cmxa /home/opam/.opam/default/lib/async/async_rpc/async_rpc.cmxa -I /home/opam/.opam/default/lib/async/async_rpc /home/opam/.opam/default/lib/async/async.cmxa /home/opam/.opam/default/lib/kafka/kafka.cmxa -I /home/opam/.opam/default/lib/kafka lib_async/kafka_async.cmxa -I lib_async test_async/consumer/.consumer.eobjs/native/consumer.cmx)
- /usr/bin/ld: /home/opam/.opam/default/lib/core/linux_ext/linux_ext.a(linux_ext.o): in function `camlLinux_ext__sched_setaffinity_this_thread_34469':
- /home/opam/.opam/default/.opam-switch/build/core.v0.14.1/_build/default/linux_ext/src/linux_ext.ml:697:(.text+0x4600): undefined reference to `core_unix_gettid'
- /usr/bin/ld: /home/opam/.opam/default/lib/core/linux_ext/linux_ext.a(linux_ext.o): in function `camlLinux_ext__1':
- :(.data+0x3b58): undefined reference to `core_unix_gettid'
- collect2: error: ld returned 1 exit status
- File "caml_startup", line 1:
- Error: Error during linking (exit code 1)
- File "test_async/producer/dune", line 2, characters 8-16:
- 2 |   (name producer)
-             ^^^^^^^^
- (cd _build/default && /home/opam/.opam/default/bin/ocamlopt.opt -w -40 -g -o test_async/producer/producer.exe /home/opam/.opam/default/lib/base/base_internalhash_types/base_internalhash_types.cmxa -I /home/opam/.opam/default/lib/base/base_internalhash_types /home/opam/.opam/default/lib/base/caml/caml.cmxa /home/opam/.opam/default/lib/sexplib0/sexplib0.cmxa /home/opam/.opam/default/lib/base/shadow_stdlib/shadow_stdlib.cmxa /home/opam/.opam/default/lib/base/base.cmxa -I /home/opam/.opam/default/lib/base /home/opam/.opam/default/lib/ppx_sexp_conv/runtime-lib/ppx_sexp_conv_lib.cmxa /home/opam/.opam/default/lib/ppx_here/runtime-lib/ppx_here_lib.cmxa /home/opam/.opam/default/lib/ppx_inline_test/config/inline_test_config.cmxa /home/opam/.opam/default/lib/jane-street-headers/jane_street_headers.cmxa /home/opam/.opam/default/lib/ppx_compare/runtime-lib/ppx_compare_lib.cmxa /home/opam/.opam/default/lib/ppx_enumerate/runtime-lib/ppx_enumerate_lib.cmxa /home/opam/.opam/default/lib/ppx_hash/runtime-lib/ppx_hash_lib.cmxa /home/opam/.opam/default/lib/time_now/time_now.cmxa -I /home/opam/.opam/default/lib/time_now /home/opam/.opam/default/lib/ppx_inline_test/runtime-lib/ppx_inline_test_lib.cmxa /home/opam/.opam/default/lib/ppx_bench/runtime-lib/ppx_bench_lib.cmxa /home/opam/.opam/default/lib/ppx_assert/runtime-lib/ppx_assert_lib.cmxa /home/opam/.opam/default/lib/splittable_random/splittable_random.cmxa /home/opam/.opam/default/lib/fieldslib/fieldslib.cmxa /home/opam/.opam/default/lib/base_quickcheck/base_quickcheck.cmxa /home/opam/.opam/default/lib/base/md5/md5_lib.cmxa /home/opam/.opam/default/lib/variantslib/variantslib.cmxa /home/opam/.opam/default/lib/bin_prot/shape/bin_shape_lib.cmxa /home/opam/.opam/default/lib/bin_prot/bin_prot.cmxa -I /home/opam/.opam/default/lib/bin_prot /home/opam/.opam/default/lib/stdio/stdio.cmxa /home/opam/.opam/default/lib/ppx_module_timer/runtime/ppx_module_timer_runtime.cmxa /home/opam/.opam/default/lib/typerep/typerep_lib.cmxa /home/opam/.opam/default/lib/ppx_expect/common/expect_test_common.cmxa /home/opam/.opam/default/lib/ppx_expect/config_types/expect_test_config_types.cmxa /home/opam/.opam/default/lib/ppx_expect/collector/expect_test_collector.cmxa -I /home/opam/.opam/default/lib/ppx_expect/collector /home/opam/.opam/default/lib/ppx_expect/config/expect_test_config.cmxa /home/opam/.opam/default/lib/base_bigstring/base_bigstring.cmxa -I /home/opam/.opam/default/lib/base_bigstring /home/opam/.opam/default/lib/core_kernel/base_for_tests/base_for_tests.cmxa /home/opam/.opam/default/lib/ocaml/unix.cmxa -I /home/opam/.opam/default/lib/ocaml /home/opam/.opam/default/lib/ocaml/bigarray.cmxa -I /home/opam/.opam/default/lib/ocaml /home/opam/.opam/default/lib/parsexp/parsexp.cmxa /home/opam/.opam/default/lib/sexplib/sexplib.cmxa /home/opam/.opam/default/lib/core_kernel/core_kernel.cmxa -I /home/opam/.opam/default/lib/core_kernel /home/opam/.opam/default/lib/ocaml/threads/threads.cmxa -I /home/opam/.opam/default/lib/ocaml /home/opam/.opam/default/lib/core/error_checking_mutex/error_checking_mutex.cmxa -I /home/opam/.opam/default/lib/core/error_checking_mutex /home/opam/.opam/default/lib/core_kernel/caml_unix/caml_unix.cmxa /home/opam/.opam/default/lib/core_kernel/flags/flags.cmxa /home/opam/.opam/default/lib/core_kernel/version_util/version_util.cmxa -I /home/opam/.opam/default/lib/core_kernel/version_util /home/opam/.opam/default/lib/sexplib/unix/sexplib_unix.cmxa /home/opam/.opam/default/lib/spawn/spawn.cmxa -I /home/opam/.opam/default/lib/spawn /home/opam/.opam/default/lib/timezone/timezone.cmxa /home/opam/.opam/default/lib/core/core.cmxa -I /home/opam/.opam/default/lib/core /home/opam/.opam/default/lib/core_kernel/moption/moption.cmxa /home/opam/.opam/default/lib/core_kernel/tuple_pool/tuple_pool.cmxa /home/opam/.opam/default/lib/core_kernel/pairing_heap/pairing_heap.cmxa /home/opam/.opam/default/lib/core_kernel/sexp_hidden_in_test/sexp_hidden_in_test.cmxa /home/opam/.opam/default/lib/core_kernel/thread_pool_cpu_affinity/thread_pool_cpu_affinity.cmxa /home/opam/.opam/default/lib/core_kernel/uopt/uopt.cmxa /home/opam/.opam/default/lib/core_kernel/thread_safe_queue/thread_safe_queue.cmxa /home/opam/.opam/default/lib/core_kernel/timing_wheel/timing_wheel.cmxa /home/opam/.opam/default/lib/async_kernel/async_kernel.cmxa /home/opam/.opam/default/lib/core/bigstring_unix/bigstring_unix.cmxa -I /home/opam/.opam/default/lib/core/bigstring_unix /home/opam/.opam/default/lib/core_kernel/bounded_int_table/bounded_int_table.cmxa /home/opam/.opam/default/lib/core_kernel/iobuf/iobuf.cmxa /home/opam/.opam/default/lib/core/iobuf_unix/iobuf_unix.cmxa -I /home/opam/.opam/default/lib/core/iobuf_unix /home/opam/.opam/default/lib/core/nano_mutex/nano_mutex.cmxa /home/opam/.opam/default/lib/core/squeue/squeue.cmxa /home/opam/.opam/default/lib/core/linux_ext/linux_ext.cmxa -I /home/opam/.opam/default/lib/core/linux_ext /home/opam/.opam/default/lib/async_unix/thread_safe_ivar/thread_safe_ivar.cmxa /home/opam/.opam/default/lib/async_unix/thread_pool/thread_pool.cmxa /home/opam/.opam/default/lib/core/time_stamp_counter/time_stamp_counter.cmxa -I /home/opam/.opam/default/lib/core/time_stamp_counter /home/opam/.opam/default/lib/core_kernel/uuid/uuid.cmxa /home/opam/.opam/default/lib/core/uuid/uuid_unix.cmxa /home/opam/.opam/default/lib/async_unix/async_unix.cmxa -I /home/opam/.opam/default/lib/async_unix /home/opam/.opam/default/lib/async/async_command/async_command.cmxa /home/opam/.opam/default/lib/async/async_quickcheck/async_quickcheck.cmxa /home/opam/.opam/default/lib/async_kernel/persistent_connection_kernel/persistent_connection_kernel.cmxa /home/opam/.opam/default/lib/protocol_version_header/protocol_version_header.cmxa /home/opam/.opam/default/lib/async_rpc_kernel/async_rpc_kernel.cmxa /home/opam/.opam/default/lib/async/async_rpc/async_rpc.cmxa -I /home/opam/.opam/default/lib/async/async_rpc /home/opam/.opam/default/lib/async/async.cmxa /home/opam/.opam/default/lib/kafka/kafka.cmxa -I /home/opam/.opam/default/lib/kafka lib_async/kafka_async.cmxa -I lib_async test_async/producer/.producer.eobjs/native/producer.cmx)
- /usr/bin/ld: /home/opam/.opam/default/lib/core/linux_ext/linux_ext.a(linux_ext.o): in function `camlLinux_ext__sched_setaffinity_this_thread_34469':
- /home/opam/.opam/default/.opam-switch/build/core.v0.14.1/_build/default/linux_ext/src/linux_ext.ml:697:(.text+0x4600): undefined reference to `core_unix_gettid'
- /usr/bin/ld: /home/opam/.opam/default/lib/core/linux_ext/linux_ext.a(linux_ext.o): in function `camlLinux_ext__1':
- :(.data+0x3b58): undefined reference to `core_unix_gettid'
- collect2: error: ld returned 1 exit status
- File "caml_startup", line 1:
- Error: Error during linking (exit code 1)
[ERROR] The compilation of kafka_async.0.5 failed at "dune build -p kafka_async -j 39".
build failed... 

=== STDERR ===

2026-08-06 04:32.05: FAILED: build kafka_async.0.5
2026-08-06 04:32.05: Job failed: build failed: kafka_async.0.5