Build:
  1. 0
2026-09-04 01:35.58: New job: build letters.0.1.1 (478c31aaed52)
2026-09-04 01:35.58: Waiting for resource in pool day11-builds
2026-09-04 01:54.46: Got resource from pool day11-builds
2026-09-04 01:54.46: [profile full] build letters.0.1.1
2026-09-04 01:54.46: build letters.0.1.1 (478c31aaed52)
=== DEPENDENCIES (78 transitive) ===
  angstrom.0.16.1                                    a98148b739eb
  asn1-combinators.0.2.6                             5222d763feed
  astring.0.8.5                                      79621710c180
  base.v0.15.2                                       7f3f1f3d5886
  base-bytes.base                                    422ffda15541
  base-threads.base                                  3d2f2cbc6db2
  base-unix.base                                     3a38ddca6b5e
  base64.3.5.2                                       13dbfa25f440
  bigarray-compat.1.1.0                              251010d3cac7
  bigarray-overlap.0.2.1                             54f1af714fef
  bigstringaf.0.10.0                                 1af1c1057d54
  cmdliner.1.3.0                                     194b6d1271c0
  coin.0.1.5                                         8e5ba82f0180
  colombe.0.3.0                                      7c995fc1b6fc
  conf-gmp.5                                         eac5259e412f
  conf-gmp-powm-sec.4                                52de364a13b8
  conf-pkg-config.5                                  74f50f3cfe72
  cppo.1.8.0                                         95405d14a0d3
  csexp.1.5.2                                        ceaadb4f9db6
  cstruct.6.0.1                                      4c3d1167a2a8
  cstruct-sexp.6.0.1                                 06e0a63e54ed
  domain-name.0.5.0                                  8e4f4664dbf4
  dune.3.24.2                                        cbbe7152834a
  dune-configurator.3.24.2                           8d620f8790f9
  duration.0.3.1                                     f94eb408a962
  emile.0.9                                          eb85b09a30e9
  eqaf.0.9                                           ebd73982e981
  fiat-p256.0.2.3                                    aab9b1243080
  fmt.0.11.0                                         1588bbb30c25
  fpath.0.7.3                                        82bf6b1d1146
  gmap.0.3.0                                         f25a546ed1a2
  hacl_x25519.0.2.2                                  803d22cd6f00
  hex.1.5.0                                          dac26cd68bf0
  hkdf.1.0.4                                         42042b5bc982
  ipaddr.5.6.2                                       77517a214f5f
  ke.0.6                                             9c95f6e94346
  logs.0.10.0                                        d9e12024e496
  lwt.6.1.2                                          2ac3761f3abd
  macaddr.5.6.2                                      6e6ee6f7586a
  mirage-crypto.0.10.7                               2c32102d44dc
  mirage-crypto-pk.0.10.7                            69163e8d09c5
  mirage-crypto-rng.0.10.7                           1c07eb383f17
  mirage-no-solo5.1                                  b11e3d2edcd8
  mirage-no-xen.1                                    fc4552196a3c
  mrmime.0.3.0                                       ae6fc84bf0a9
  mtime.2.2.0                                        0ae3d2d2f141
  num.1.6                                            c9b6c2a04dcf
  ocaml.5.3.0                                        6ff460273d57
  ocaml-base-compiler.5.3.0                          ab889490af4f
  ocaml-compiler.5.3.0                               a36aaaa91913
  ocaml-compiler-libs.v0.17.0                        a116ac6aca12
  ocaml-config.3                                     c2e80612d111
  ocaml-syntax-shims.1.0.0                           de97153da767
  ocamlbuild.0.16.1                                  21bfaf9ec475
  ocamlfind.1.9.8                                    8c4f353d7b71
  ocplib-endian.1.2                                  3cba2c5ff5c8
  parsexp.v0.15.0                                    bb8d0f2893a0
  pecu.0.4                                           782a647ac314
  ppx_cstruct.6.0.1                                  c06c4ae53ed0
  ppx_derivers.1.2.1                                 962a10540301
  ppx_sexp_conv.v0.15.1                              3afa37a8dcf6
  ppxlib.0.35.0                                      7d70bfba82a0
  ptime.1.2.0                                        d85ec1bf9f30
  rosetta.0.4.0                                      94e331d0da1d
  rresult.0.7.0                                      fb60ace6b91d
  sendmail.0.3.0                                     73df28a61e00
  sendmail-lwt.0.3.0                                 9eba644b2e01
  sexplib.v0.15.1                                    c15e7bc1b9b1
  sexplib0.v0.15.1                                   d1f9ee51e640
  stdlib-shims.0.3.0                                 564d91498093
  tls.0.12.8                                         d2a236f40b90
  topkg.1.1.1                                        58cf4512c849
  unstrctrd.0.4                                      5e3a2580fc9c
  uutf.1.0.4                                         e9e3c2ae7a5e
  uuuu.0.4.0                                         7e79ec856655
  x509.0.11.2                                        4d835bbea194
  yuscii.0.3.0                                       20aa1381f1fd
  zarith.1.14                                        787bc5ecf3ea
=== STDOUT ===
Processing: [default: loading data]
[letters.0.1.1: dl]
[letters.0.1.1: extract]
-> retrieved letters.0.1.1  (https://opam.ocaml.org/cache)
[letters: dune build]
+ /home/opam/.opam/default/bin/dune "build" "-p" "letters" "-j" "39" "@install" (CWD=/home/opam/.opam/default/.opam-switch/build/letters.0.1.1)
- (cd _build/default && /home/opam/.opam/default/bin/ocamlopt.opt -w -40 -g -I lib/.letters.objs/byte -I lib/.letters.objs/native -I /home/opam/.opam/default/lib/angstrom -I /home/opam/.opam/default/lib/asn1-combinators -I /home/opam/.opam/default/lib/astring -I /home/opam/.opam/default/lib/base/caml -I /home/opam/.opam/default/lib/base64 -I /home/opam/.opam/default/lib/base64/rfc2045 -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/bigarray-overlap -I /home/opam/.opam/default/lib/bigstringaf -I /home/opam/.opam/default/lib/bytes -I /home/opam/.opam/default/lib/coin -I /home/opam/.opam/default/lib/colombe -I /home/opam/.opam/default/lib/colombe/emile -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/cstruct-sexp -I /home/opam/.opam/default/lib/domain-name -I /home/opam/.opam/default/lib/duration -I /home/opam/.opam/default/lib/emile -I /home/opam/.opam/default/lib/eqaf -I /home/opam/.opam/default/lib/eqaf/bigstring -I /home/opam/.opam/default/lib/eqaf/cstruct -I /home/opam/.opam/default/lib/fiat-p256 -I /home/opam/.opam/default/lib/fmt -I /home/opam/.opam/default/lib/fpath -I /home/opam/.opam/default/lib/gmap -I /home/opam/.opam/default/lib/hacl_x25519 -I /home/opam/.opam/default/lib/hex -I /home/opam/.opam/default/lib/hkdf -I /home/opam/.opam/default/lib/ipaddr -I /home/opam/.opam/default/lib/ke -I /home/opam/.opam/default/lib/logs -I /home/opam/.opam/default/lib/lwt -I /home/opam/.opam/default/lib/lwt/unix -I /home/opam/.opam/default/lib/macaddr -I /home/opam/.opam/default/lib/mirage-crypto -I /home/opam/.opam/default/lib/mirage-crypto-pk -I /home/opam/.opam/default/lib/mirage-crypto-rng -I /home/opam/.opam/default/lib/mirage-crypto-rng/lwt -I /home/opam/.opam/default/lib/mirage-crypto-rng/unix -I /home/opam/.opam/default/lib/mrmime -I /home/opam/.opam/default/lib/mrmime/prettym -I /home/opam/.opam/default/lib/mtime -I /home/opam/.opam/default/lib/mtime/clock -I /home/opam/.opam/default/lib/ocaml/threads -I /home/opam/.opam/default/lib/ocaml/unix -I /home/opam/.opam/default/lib/ocplib-endian -I /home/opam/.opam/default/lib/ocplib-endian/bigstring -I /home/opam/.opam/default/lib/parsexp -I /home/opam/.opam/default/lib/pecu -I /home/opam/.opam/default/lib/ppx_sexp_conv/runtime-lib -I /home/opam/.opam/default/lib/ptime -I /home/opam/.opam/default/lib/ptime/clock -I /home/opam/.opam/default/lib/rosetta -I /home/opam/.opam/default/lib/rresult -I /home/opam/.opam/default/lib/sendmail -I /home/opam/.opam/default/lib/sendmail-lwt -I /home/opam/.opam/default/lib/sendmail/tls -I /home/opam/.opam/default/lib/sexplib -I /home/opam/.opam/default/lib/sexplib0 -I /home/opam/.opam/default/lib/stdlib-shims -I /home/opam/.opam/default/lib/tls -I /home/opam/.opam/default/lib/tls/lwt -I /home/opam/.opam/default/lib/unstrctrd -I /home/opam/.opam/default/lib/unstrctrd/parser -I /home/opam/.opam/default/lib/uutf -I /home/opam/.opam/default/lib/uuuu -I /home/opam/.opam/default/lib/x509 -I /home/opam/.opam/default/lib/yuscii -I /home/opam/.opam/default/lib/zarith -cmi-file lib/.letters.objs/byte/letters__Sendmail_handler.cmi -no-alias-deps -open Letters__ -o lib/.letters.objs/native/letters__Sendmail_handler.cmx -c -impl lib/sendmail_handler.ml)
- File "lib/sendmail_handler.ml", line 34, characters 22-30:
- 34 |   then Lwt.fail_with (Fmt.strf "%a can not be resolved" Domain_name.pp hostname)
-                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "lib/sendmail_handler.ml", line 26, characters 33-37:
- 26 | let run_with_starttls ~hostname ?port ~domain ~authentication ~tls_authenticator ~from ~recipients ~mail =
-                                       ^^^^
- Warning 16 [unerasable-optional-argument]: this optional argument cannot be erased.
- 
- File "lib/sendmail_handler.ml", line 52, characters 19-23:
- 52 | let run ~hostname ?port ~domain ~authentication ~tls_authenticator ~from ~recipients ~mail =
-                         ^^^^
- Warning 16 [unerasable-optional-argument]: this optional argument cannot be erased.
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -w -40 -g -bin-annot -bin-annot-occurrences -I lib/.letters.objs/byte -I /home/opam/.opam/default/lib/angstrom -I /home/opam/.opam/default/lib/asn1-combinators -I /home/opam/.opam/default/lib/astring -I /home/opam/.opam/default/lib/base/caml -I /home/opam/.opam/default/lib/base64 -I /home/opam/.opam/default/lib/base64/rfc2045 -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/bigarray-overlap -I /home/opam/.opam/default/lib/bigstringaf -I /home/opam/.opam/default/lib/bytes -I /home/opam/.opam/default/lib/coin -I /home/opam/.opam/default/lib/colombe -I /home/opam/.opam/default/lib/colombe/emile -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/cstruct-sexp -I /home/opam/.opam/default/lib/domain-name -I /home/opam/.opam/default/lib/duration -I /home/opam/.opam/default/lib/emile -I /home/opam/.opam/default/lib/eqaf -I /home/opam/.opam/default/lib/eqaf/bigstring -I /home/opam/.opam/default/lib/eqaf/cstruct -I /home/opam/.opam/default/lib/fiat-p256 -I /home/opam/.opam/default/lib/fmt -I /home/opam/.opam/default/lib/fpath -I /home/opam/.opam/default/lib/gmap -I /home/opam/.opam/default/lib/hacl_x25519 -I /home/opam/.opam/default/lib/hex -I /home/opam/.opam/default/lib/hkdf -I /home/opam/.opam/default/lib/ipaddr -I /home/opam/.opam/default/lib/ke -I /home/opam/.opam/default/lib/logs -I /home/opam/.opam/default/lib/lwt -I /home/opam/.opam/default/lib/lwt/unix -I /home/opam/.opam/default/lib/macaddr -I /home/opam/.opam/default/lib/mirage-crypto -I /home/opam/.opam/default/lib/mirage-crypto-pk -I /home/opam/.opam/default/lib/mirage-crypto-rng -I /home/opam/.opam/default/lib/mirage-crypto-rng/lwt -I /home/opam/.opam/default/lib/mirage-crypto-rng/unix -I /home/opam/.opam/default/lib/mrmime -I /home/opam/.opam/default/lib/mrmime/prettym -I /home/opam/.opam/default/lib/mtime -I /home/opam/.opam/default/lib/mtime/clock -I /home/opam/.opam/default/lib/ocaml/threads -I /home/opam/.opam/default/lib/ocaml/unix -I /home/opam/.opam/default/lib/ocplib-endian -I /home/opam/.opam/default/lib/ocplib-endian/bigstring -I /home/opam/.opam/default/lib/parsexp -I /home/opam/.opam/default/lib/pecu -I /home/opam/.opam/default/lib/ppx_sexp_conv/runtime-lib -I /home/opam/.opam/default/lib/ptime -I /home/opam/.opam/default/lib/ptime/clock -I /home/opam/.opam/default/lib/rosetta -I /home/opam/.opam/default/lib/rresult -I /home/opam/.opam/default/lib/sendmail -I /home/opam/.opam/default/lib/sendmail-lwt -I /home/opam/.opam/default/lib/sendmail/tls -I /home/opam/.opam/default/lib/sexplib -I /home/opam/.opam/default/lib/sexplib0 -I /home/opam/.opam/default/lib/stdlib-shims -I /home/opam/.opam/default/lib/tls -I /home/opam/.opam/default/lib/tls/lwt -I /home/opam/.opam/default/lib/unstrctrd -I /home/opam/.opam/default/lib/unstrctrd/parser -I /home/opam/.opam/default/lib/uutf -I /home/opam/.opam/default/lib/uuuu -I /home/opam/.opam/default/lib/x509 -I /home/opam/.opam/default/lib/yuscii -I /home/opam/.opam/default/lib/zarith -cmi-file lib/.letters.objs/byte/letters__Sendmail_handler.cmi -no-alias-deps -open Letters__ -o lib/.letters.objs/byte/letters__Sendmail_handler.cmo -c -impl lib/sendmail_handler.ml)
- File "lib/sendmail_handler.ml", line 34, characters 22-30:
- 34 |   then Lwt.fail_with (Fmt.strf "%a can not be resolved" Domain_name.pp hostname)
-                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "lib/sendmail_handler.ml", line 26, characters 33-37:
- 26 | let run_with_starttls ~hostname ?port ~domain ~authentication ~tls_authenticator ~from ~recipients ~mail =
-                                       ^^^^
- Warning 16 [unerasable-optional-argument]: this optional argument cannot be erased.
- 
- File "lib/sendmail_handler.ml", line 52, characters 19-23:
- 52 | let run ~hostname ?port ~domain ~authentication ~tls_authenticator ~from ~recipients ~mail =
-                         ^^^^
- Warning 16 [unerasable-optional-argument]: this optional argument cannot be erased.
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -w -40 -g -bin-annot -bin-annot-occurrences -I lib/.letters.objs/byte -I /home/opam/.opam/default/lib/angstrom -I /home/opam/.opam/default/lib/asn1-combinators -I /home/opam/.opam/default/lib/astring -I /home/opam/.opam/default/lib/base/caml -I /home/opam/.opam/default/lib/base64 -I /home/opam/.opam/default/lib/base64/rfc2045 -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/bigarray-overlap -I /home/opam/.opam/default/lib/bigstringaf -I /home/opam/.opam/default/lib/bytes -I /home/opam/.opam/default/lib/coin -I /home/opam/.opam/default/lib/colombe -I /home/opam/.opam/default/lib/colombe/emile -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/cstruct-sexp -I /home/opam/.opam/default/lib/domain-name -I /home/opam/.opam/default/lib/duration -I /home/opam/.opam/default/lib/emile -I /home/opam/.opam/default/lib/eqaf -I /home/opam/.opam/default/lib/eqaf/bigstring -I /home/opam/.opam/default/lib/eqaf/cstruct -I /home/opam/.opam/default/lib/fiat-p256 -I /home/opam/.opam/default/lib/fmt -I /home/opam/.opam/default/lib/fpath -I /home/opam/.opam/default/lib/gmap -I /home/opam/.opam/default/lib/hacl_x25519 -I /home/opam/.opam/default/lib/hex -I /home/opam/.opam/default/lib/hkdf -I /home/opam/.opam/default/lib/ipaddr -I /home/opam/.opam/default/lib/ke -I /home/opam/.opam/default/lib/logs -I /home/opam/.opam/default/lib/lwt -I /home/opam/.opam/default/lib/lwt/unix -I /home/opam/.opam/default/lib/macaddr -I /home/opam/.opam/default/lib/mirage-crypto -I /home/opam/.opam/default/lib/mirage-crypto-pk -I /home/opam/.opam/default/lib/mirage-crypto-rng -I /home/opam/.opam/default/lib/mirage-crypto-rng/lwt -I /home/opam/.opam/default/lib/mirage-crypto-rng/unix -I /home/opam/.opam/default/lib/mrmime -I /home/opam/.opam/default/lib/mrmime/prettym -I /home/opam/.opam/default/lib/mtime -I /home/opam/.opam/default/lib/mtime/clock -I /home/opam/.opam/default/lib/ocaml/threads -I /home/opam/.opam/default/lib/ocaml/unix -I /home/opam/.opam/default/lib/ocplib-endian -I /home/opam/.opam/default/lib/ocplib-endian/bigstring -I /home/opam/.opam/default/lib/parsexp -I /home/opam/.opam/default/lib/pecu -I /home/opam/.opam/default/lib/ppx_sexp_conv/runtime-lib -I /home/opam/.opam/default/lib/ptime -I /home/opam/.opam/default/lib/ptime/clock -I /home/opam/.opam/default/lib/rosetta -I /home/opam/.opam/default/lib/rresult -I /home/opam/.opam/default/lib/sendmail -I /home/opam/.opam/default/lib/sendmail-lwt -I /home/opam/.opam/default/lib/sendmail/tls -I /home/opam/.opam/default/lib/sexplib -I /home/opam/.opam/default/lib/sexplib0 -I /home/opam/.opam/default/lib/stdlib-shims -I /home/opam/.opam/default/lib/tls -I /home/opam/.opam/default/lib/tls/lwt -I /home/opam/.opam/default/lib/unstrctrd -I /home/opam/.opam/default/lib/unstrctrd/parser -I /home/opam/.opam/default/lib/uutf -I /home/opam/.opam/default/lib/uuuu -I /home/opam/.opam/default/lib/x509 -I /home/opam/.opam/default/lib/yuscii -I /home/opam/.opam/default/lib/zarith -cmi-file lib/.letters.objs/byte/letters.cmi -no-alias-deps -open Letters__ -o lib/.letters.objs/byte/letters.cmo -c -impl lib/letters.ml)
- File "lib/letters.ml", line 32, characters 29-37:
- 32 |       | Error _ -> failwith (Fmt.strf "Invalid email address for 'to': %s" address))
-                                   ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "lib/letters.ml", line 40, characters 29-37:
- 40 |       | Error _ -> failwith (Fmt.strf "Invalid email address for 'to': %s" address))
-                                   ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- (cd _build/default && /home/opam/.opam/default/bin/ocamlopt.opt -w -40 -g -I lib/.letters.objs/byte -I lib/.letters.objs/native -I /home/opam/.opam/default/lib/angstrom -I /home/opam/.opam/default/lib/asn1-combinators -I /home/opam/.opam/default/lib/astring -I /home/opam/.opam/default/lib/base/caml -I /home/opam/.opam/default/lib/base64 -I /home/opam/.opam/default/lib/base64/rfc2045 -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/bigarray-overlap -I /home/opam/.opam/default/lib/bigstringaf -I /home/opam/.opam/default/lib/bytes -I /home/opam/.opam/default/lib/coin -I /home/opam/.opam/default/lib/colombe -I /home/opam/.opam/default/lib/colombe/emile -I /home/opam/.opam/default/lib/cstruct -I /home/opam/.opam/default/lib/cstruct-sexp -I /home/opam/.opam/default/lib/domain-name -I /home/opam/.opam/default/lib/duration -I /home/opam/.opam/default/lib/emile -I /home/opam/.opam/default/lib/eqaf -I /home/opam/.opam/default/lib/eqaf/bigstring -I /home/opam/.opam/default/lib/eqaf/cstruct -I /home/opam/.opam/default/lib/fiat-p256 -I /home/opam/.opam/default/lib/fmt -I /home/opam/.opam/default/lib/fpath -I /home/opam/.opam/default/lib/gmap -I /home/opam/.opam/default/lib/hacl_x25519 -I /home/opam/.opam/default/lib/hex -I /home/opam/.opam/default/lib/hkdf -I /home/opam/.opam/default/lib/ipaddr -I /home/opam/.opam/default/lib/ke -I /home/opam/.opam/default/lib/logs -I /home/opam/.opam/default/lib/lwt -I /home/opam/.opam/default/lib/lwt/unix -I /home/opam/.opam/default/lib/macaddr -I /home/opam/.opam/default/lib/mirage-crypto -I /home/opam/.opam/default/lib/mirage-crypto-pk -I /home/opam/.opam/default/lib/mirage-crypto-rng -I /home/opam/.opam/default/lib/mirage-crypto-rng/lwt -I /home/opam/.opam/default/lib/mirage-crypto-rng/unix -I /home/opam/.opam/default/lib/mrmime -I /home/opam/.opam/default/lib/mrmime/prettym -I /home/opam/.opam/default/lib/mtime -I /home/opam/.opam/default/lib/mtime/clock -I /home/opam/.opam/default/lib/ocaml/threads -I /home/opam/.opam/default/lib/ocaml/unix -I /home/opam/.opam/default/lib/ocplib-endian -I /home/opam/.opam/default/lib/ocplib-endian/bigstring -I /home/opam/.opam/default/lib/parsexp -I /home/opam/.opam/default/lib/pecu -I /home/opam/.opam/default/lib/ppx_sexp_conv/runtime-lib -I /home/opam/.opam/default/lib/ptime -I /home/opam/.opam/default/lib/ptime/clock -I /home/opam/.opam/default/lib/rosetta -I /home/opam/.opam/default/lib/rresult -I /home/opam/.opam/default/lib/sendmail -I /home/opam/.opam/default/lib/sendmail-lwt -I /home/opam/.opam/default/lib/sendmail/tls -I /home/opam/.opam/default/lib/sexplib -I /home/opam/.opam/default/lib/sexplib0 -I /home/opam/.opam/default/lib/stdlib-shims -I /home/opam/.opam/default/lib/tls -I /home/opam/.opam/default/lib/tls/lwt -I /home/opam/.opam/default/lib/unstrctrd -I /home/opam/.opam/default/lib/unstrctrd/parser -I /home/opam/.opam/default/lib/uutf -I /home/opam/.opam/default/lib/uuuu -I /home/opam/.opam/default/lib/x509 -I /home/opam/.opam/default/lib/yuscii -I /home/opam/.opam/default/lib/zarith -cmi-file lib/.letters.objs/byte/letters.cmi -no-alias-deps -open Letters__ -o lib/.letters.objs/native/letters.cmx -c -impl lib/letters.ml)
- File "lib/letters.ml", line 32, characters 29-37:
- 32 |       | Error _ -> failwith (Fmt.strf "Invalid email address for 'to': %s" address))
-                                   ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "lib/letters.ml", line 40, characters 29-37:
- 40 |       | Error _ -> failwith (Fmt.strf "Invalid email address for 'to': %s" address))
-                                   ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
-> compiled  letters.0.1.1
-> installed letters.0.1.1
[WARNING] Opam package conf-gmp.5 depends on the following system package that can no longer be found: libgmp-dev

=== STDERR ===

2026-09-04 01:55.14: OK: build letters.0.1.1 (runc: 2.6s, disk: 29KB)
2026-09-04 01:55.14: Job succeeded