Build:
  1. 0
2026-06-24 19:09.04: New job: build sendmail.0.4.2 (c348e6f67bfa)
2026-06-24 19:09.04: Waiting for resource in pool day11-builds
2026-06-24 19:26.01: Got resource from pool day11-builds
2026-06-24 19:26.01: [profile full] build sendmail.0.4.2
2026-06-24 19:26.01: build sendmail.0.4.2 (c348e6f67bfa)
=== DEPENDENCIES (67 transitive) ===
  angstrom.0.16.1                                    7b5a7290f9a4
  asn1-combinators.0.2.6                             ab60c442b1e5
  base.v0.17.3                                       c29afc67ba00
  base-bytes.base                                    a7b3bf16b3f4
  base-threads.base                                  c9e7bdbf5823
  base-unix.base                                     7d1428be9ddb
  base64.3.5.2                                       612901b099cc
  bigarray-compat.1.1.0                              6a9ffb5ca493
  bigstringaf.0.10.0                                 ace38f08babf
  cmdliner.1.3.0                                     7453dde17dbe
  colombe.0.4.2                                      22c811f5e200
  compiler-cloning.enabled                           439a1fc77aa6
  conf-gmp.5                                         be11edf77089
  conf-gmp-powm-sec.4                                7029468462a8
  conf-pkg-config.5                                  d5de2c6a88f9
  cppo.1.8.0                                         deac69f17b6b
  csexp.1.5.2                                        977b865a51b4
  cstruct.6.0.1                                      39f356871cef
  cstruct-sexp.6.0.1                                 6f435916bfde
  domain-name.0.5.0                                  88f0a0101969
  dune.3.23.1                                        a59dd9b14fe3
  dune-configurator.3.23.1                           8cec6bb1116c
  duration.0.3.1                                     2e28964e0c5f
  emile.1.1                                          08c2ec240ffa
  eqaf.0.9                                           d23f9d6566b1
  fmt.0.11.0                                         f557f5d0e738
  gmap.0.3.0                                         f0a252074065
  hkdf.1.0.4                                         d1a03942cedd
  ipaddr.5.6.2                                       f0d11333b684
  ipaddr-sexp.5.6.2                                  02ffbe1b780f
  logs.0.10.0                                        ac1ead4f7fb2
  lwt.6.1.2                                          ac157df3e196
  macaddr.5.6.2                                      79697028334d
  mirage-crypto.0.10.7                               4a439d61247c
  mirage-crypto-ec.0.10.7                            9e14aa21422e
  mirage-crypto-pk.0.10.7                            e49fca411020
  mirage-crypto-rng.0.10.7                           2d7979bba54e
  mirage-no-solo5.1                                  13f2afe40169
  mirage-no-xen.1                                    1d7bfaeb5ba3
  mtime.2.1.0                                        e796d3f55e78
  num.1.6                                            efd5a307a10f
  ocaml.5.5.0                                        383268832c4b
  ocaml-base-compiler.5.5.0                          522c248944c8
  ocaml-compiler.5.5.0                               eb1a8babf54c
  ocaml-compiler-libs.v0.17.0                        d66bf6efa323
  ocaml-syntax-shims.1.0.0                           57f31ba6c740
  ocaml_intrinsics_kernel.v0.17.2                    5f4f03f1d581
  ocamlbuild.0.16.1                                  e57f00093c6a
  ocamlfind.1.9.8                                    b506a15fcd6c
  ocplib-endian.1.2                                  d54106a1e513
  parsexp.v0.17.0                                    7a592903ad6e
  pbkdf.1.2.0                                        6b3171936d17
  pecu.0.7                                           25ac16d8caa1
  ppx_cstruct.6.0.1                                  5b9c70d17110
  ppx_derivers.1.2.1                                 82026aa8af61
  ppx_sexp_conv.v0.17.1                              defee63a95cd
  ppxlib.0.38.0                                      2aa2dfbf252b
  ppxlib_jane.v0.17.4                                abb3b3b0dac0
  ptime.1.2.0                                        b662df1f9ed0
  sexplib.v0.17.0                                    96575d3108de
  sexplib0.v0.17.0                                   166f8102230b
  stdlib-shims.0.3.0                                 e7f8a4f187fa
  tls.0.15.4                                         f6ff04f752c0
  topkg.1.1.1                                        ac206dbbd2b6
  uutf.1.0.4                                         2e59291944bd
  x509.0.16.5                                        31c9d54348cf
  zarith.1.14                                        c48bd7ff5430
=== STDOUT ===
Processing: [default: loading data]
[sendmail.0.4.2: extract]
-> retrieved sendmail.0.4.2  (cached)
[sendmail: dune build]
+ /home/opam/.opam/default/bin/dune "build" "-p" "sendmail" "-j" "39" (CWD=/home/opam/.opam/default/.opam-switch/build/sendmail.0.4.2)
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -w -40 -g -bin-annot -bin-annot-occurrences -I sendmail/.sendmail.objs/byte -I /home/opam/.opam/default/lib/angstrom -I /home/opam/.opam/default/lib/base64 -I /home/opam/.opam/default/lib/bigstringaf -I /home/opam/.opam/default/lib/colombe -I /home/opam/.opam/default/lib/domain-name -I /home/opam/.opam/default/lib/fmt -I /home/opam/.opam/default/lib/ipaddr -I /home/opam/.opam/default/lib/logs -I /home/opam/.opam/default/lib/macaddr -cmi-file sendmail/.sendmail.objs/byte/sendmail.cmi -no-alias-deps -o sendmail/.sendmail.objs/byte/sendmail.cmo -c -impl sendmail/sendmail.ml)
- File "sendmail/sendmail.ml", line 136, characters 37-45:
- 136 |                   Base64.encode_exn (Fmt.strf "\000%s\000%s" username password)
-                                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "sendmail/sendmail.ml", line 144, characters 21-29:
- 144 |                     (Fmt.strf "%s\000%s\000%s" x username password) in
-                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "sendmail/sendmail.ml", line 150, characters 37-45:
- 150 |                   Base64.encode_exn (Fmt.strf "\000%s\000%s" username password)
-                                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- (cd _build/default && /home/opam/.opam/default/bin/ocamlopt.opt -w -40 -g -I sendmail/.sendmail.objs/byte -I sendmail/.sendmail.objs/native -I /home/opam/.opam/default/lib/angstrom -I /home/opam/.opam/default/lib/base64 -I /home/opam/.opam/default/lib/bigstringaf -I /home/opam/.opam/default/lib/colombe -I /home/opam/.opam/default/lib/domain-name -I /home/opam/.opam/default/lib/fmt -I /home/opam/.opam/default/lib/ipaddr -I /home/opam/.opam/default/lib/logs -I /home/opam/.opam/default/lib/macaddr -cmi-file sendmail/.sendmail.objs/byte/sendmail.cmi -no-alias-deps -o sendmail/.sendmail.objs/native/sendmail.cmx -c -impl sendmail/sendmail.ml)
- File "sendmail/sendmail.ml", line 136, characters 37-45:
- 136 |                   Base64.encode_exn (Fmt.strf "\000%s\000%s" username password)
-                                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "sendmail/sendmail.ml", line 144, characters 21-29:
- 144 |                     (Fmt.strf "%s\000%s\000%s" x username password) in
-                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "sendmail/sendmail.ml", line 150, characters 37-45:
- 150 |                   Base64.encode_exn (Fmt.strf "\000%s\000%s" username password)
-                                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- (cd _build/default && /home/opam/.opam/default/bin/ocamlc.opt -w -40 -g -bin-annot -bin-annot-occurrences -I sendmail/.sendmail_with_starttls.objs/byte -I /home/opam/.opam/default/lib/angstrom -I /home/opam/.opam/default/lib/asn1-combinators -I /home/opam/.opam/default/lib/base64 -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/bigstringaf -I /home/opam/.opam/default/lib/colombe -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/eqaf -I /home/opam/.opam/default/lib/eqaf/bigstring -I /home/opam/.opam/default/lib/eqaf/cstruct -I /home/opam/.opam/default/lib/fmt -I /home/opam/.opam/default/lib/gmap -I /home/opam/.opam/default/lib/hkdf -I /home/opam/.opam/default/lib/ipaddr -I /home/opam/.opam/default/lib/ipaddr-sexp -I /home/opam/.opam/default/lib/logs -I /home/opam/.opam/default/lib/macaddr -I /home/opam/.opam/default/lib/mirage-crypto -I /home/opam/.opam/default/lib/mirage-crypto-ec -I /home/opam/.opam/default/lib/mirage-crypto-pk -I /home/opam/.opam/default/lib/mirage-crypto-rng -I /home/opam/.opam/default/lib/parsexp -I /home/opam/.opam/default/lib/pbkdf -I /home/opam/.opam/default/lib/ppx_sexp_conv/runtime-lib -I /home/opam/.opam/default/lib/ptime -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/x509 -I /home/opam/.opam/default/lib/zarith -I sendmail/.sendmail.objs/byte -cmi-file sendmail/.sendmail_with_starttls.objs/byte/sendmail_with_starttls.cmi -no-alias-deps -o sendmail/.sendmail_with_starttls.objs/byte/sendmail_with_starttls.cmo -c -impl sendmail/sendmail_with_starttls.ml)
- File "sendmail/sendmail_with_starttls.ml", line 251, characters 13-24:
- 251 |           if Cstruct.len raw = 0
-                    ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 259, characters 22-33:
- 259 |                 len = Cstruct.len raw;
-                             ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 266, characters 18-29:
- 266 |             len = Cstruct.len raw;
-                         ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 291, characters 15-26:
- 291 |             if Cstruct.len raw = 0
-                      ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 309, characters 24-35:
- 309 |                   len = Cstruct.len raw;
-                               ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 316, characters 20-31:
- 316 |               len = Cstruct.len raw;
-                           ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 326, characters 53-64:
- 326 |           let len = min (Bytes.length buffer - max) (Cstruct.len raw) in
-                                                            ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 327, characters 19-30:
- 327 |           if len < Cstruct.len raw
-                          ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 362, characters 44-55:
- 362 |     match (ctx.Context_with_tls.tls, fiber, Cstruct.len delayed_data) with
-                                                   ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 381, characters 22-33:
- 381 |                 len = Cstruct.len raw;
-                             ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 397, characters 29-40:
- 397 |               let len = min (Cstruct.len raw) len_0 in
-                                    ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 411, characters 19-30:
- 411 |                 if Cstruct.len raw = 0
-                          ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 419, characters 28-39:
- 419 |                       len = Cstruct.len raw;
-                                   ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 426, characters 24-35:
- 426 |                   len = Cstruct.len raw;
-                               ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 477, characters 9-20:
- 477 |       if Cstruct.len raw = 0
-                ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 488, characters 18-29:
- 488 |             len = Cstruct.len raw;
-                         ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 504, characters 14-25:
- 504 |         len = Cstruct.len raw;
-                     ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 529, characters 13-24:
- 529 |           if Cstruct.len raw = 0
-                    ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 537, characters 22-33:
- 537 |                 len = Cstruct.len raw;
-                             ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 544, characters 18-29:
- 544 |             len = Cstruct.len raw;
-                         ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 598, characters 37-45:
- 598 |                   Base64.encode_exn (Fmt.strf "\000%s\000%s" username password)
-                                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 606, characters 21-29:
- 606 |                     (Fmt.strf "%s\000%s\000%s" x username password) in
-                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 612, characters 37-45:
- 612 |                   Base64.encode_exn (Fmt.strf "\000%s\000%s" username password)
-                                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 764, characters 36-47:
- 764 |                 rdwr.wr flow buf 0 (Cstruct.len raw) >>= fun () -> go state
-                                           ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- (cd _build/default && /home/opam/.opam/default/bin/ocamlopt.opt -w -40 -g -I sendmail/.sendmail_with_starttls.objs/byte -I sendmail/.sendmail_with_starttls.objs/native -I /home/opam/.opam/default/lib/angstrom -I /home/opam/.opam/default/lib/asn1-combinators -I /home/opam/.opam/default/lib/base64 -I /home/opam/.opam/default/lib/bigarray-compat -I /home/opam/.opam/default/lib/bigstringaf -I /home/opam/.opam/default/lib/colombe -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/eqaf -I /home/opam/.opam/default/lib/eqaf/bigstring -I /home/opam/.opam/default/lib/eqaf/cstruct -I /home/opam/.opam/default/lib/fmt -I /home/opam/.opam/default/lib/gmap -I /home/opam/.opam/default/lib/hkdf -I /home/opam/.opam/default/lib/ipaddr -I /home/opam/.opam/default/lib/ipaddr-sexp -I /home/opam/.opam/default/lib/logs -I /home/opam/.opam/default/lib/macaddr -I /home/opam/.opam/default/lib/mirage-crypto -I /home/opam/.opam/default/lib/mirage-crypto-ec -I /home/opam/.opam/default/lib/mirage-crypto-pk -I /home/opam/.opam/default/lib/mirage-crypto-rng -I /home/opam/.opam/default/lib/parsexp -I /home/opam/.opam/default/lib/pbkdf -I /home/opam/.opam/default/lib/ppx_sexp_conv/runtime-lib -I /home/opam/.opam/default/lib/ptime -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/x509 -I /home/opam/.opam/default/lib/zarith -I sendmail/.sendmail.objs/byte -I sendmail/.sendmail.objs/native -cmi-file sendmail/.sendmail_with_starttls.objs/byte/sendmail_with_starttls.cmi -no-alias-deps -o sendmail/.sendmail_with_starttls.objs/native/sendmail_with_starttls.cmx -c -impl sendmail/sendmail_with_starttls.ml)
- File "sendmail/sendmail_with_starttls.ml", line 251, characters 13-24:
- 251 |           if Cstruct.len raw = 0
-                    ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 259, characters 22-33:
- 259 |                 len = Cstruct.len raw;
-                             ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 266, characters 18-29:
- 266 |             len = Cstruct.len raw;
-                         ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 291, characters 15-26:
- 291 |             if Cstruct.len raw = 0
-                      ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 309, characters 24-35:
- 309 |                   len = Cstruct.len raw;
-                               ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 316, characters 20-31:
- 316 |               len = Cstruct.len raw;
-                           ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 326, characters 53-64:
- 326 |           let len = min (Bytes.length buffer - max) (Cstruct.len raw) in
-                                                            ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 327, characters 19-30:
- 327 |           if len < Cstruct.len raw
-                          ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 362, characters 44-55:
- 362 |     match (ctx.Context_with_tls.tls, fiber, Cstruct.len delayed_data) with
-                                                   ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 381, characters 22-33:
- 381 |                 len = Cstruct.len raw;
-                             ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 397, characters 29-40:
- 397 |               let len = min (Cstruct.len raw) len_0 in
-                                    ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 411, characters 19-30:
- 411 |                 if Cstruct.len raw = 0
-                          ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 419, characters 28-39:
- 419 |                       len = Cstruct.len raw;
-                                   ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 426, characters 24-35:
- 426 |                   len = Cstruct.len raw;
-                               ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 477, characters 9-20:
- 477 |       if Cstruct.len raw = 0
-                ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 488, characters 18-29:
- 488 |             len = Cstruct.len raw;
-                         ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 504, characters 14-25:
- 504 |         len = Cstruct.len raw;
-                     ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 529, characters 13-24:
- 529 |           if Cstruct.len raw = 0
-                    ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 537, characters 22-33:
- 537 |                 len = Cstruct.len raw;
-                             ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 544, characters 18-29:
- 544 |             len = Cstruct.len raw;
-                         ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 598, characters 37-45:
- 598 |                   Base64.encode_exn (Fmt.strf "\000%s\000%s" username password)
-                                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 606, characters 21-29:
- 606 |                     (Fmt.strf "%s\000%s\000%s" x username password) in
-                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 612, characters 37-45:
- 612 |                   Base64.encode_exn (Fmt.strf "\000%s\000%s" username password)
-                                            ^^^^^^^^
- Alert deprecated: Fmt.strf
- use Fmt.str instead.
- 
- File "sendmail/sendmail_with_starttls.ml", line 764, characters 36-47:
- 764 |                 rdwr.wr flow buf 0 (Cstruct.len raw) >>= fun () -> go state
-                                           ^^^^^^^^^^^
- Alert deprecated: Cstruct.len
- len is deprecated, you should use length instead.
-> compiled  sendmail.0.4.2
-> installed sendmail.0.4.2
[WARNING] Opam package conf-gmp.5 depends on the following system package that can no longer be found: libgmp-dev

=== STDERR ===

2026-06-24 19:26.27: OK: build sendmail.0.4.2 (runc: 3.1s, disk: 31KB)
2026-06-24 19:26.27: Job succeeded