This is OpenBSD with OpenSSL. There are no patches for dovecot version 2.3.10.1: https://github.com/openbsd/ports/tree/master/mail/dovecot/patches
My latest run is attached.
make check ... Making check in lib-ssl-iostream make check-local for bin in test-iostream-ssl; do if ! ./$bin; then exit 1; fi; done test-common.c:195: Assert failed: suppress == TRUE Error: server: SSL_accept() syscall failed: Invalid argument ssl: handshake ....................................................... : FAILED Panic: file ostream.c: line 54 (o_stream_close_full): assertion failed: (stream->real_stream->error_handling_disabled) Abort trap (core dumped) *** Error 1 in src/lib-ssl-iostream (Makefile:919 'check-local') *** Error 2 in src/lib-ssl-iostream (Makefile:786 'check-am') *** Error 1 in src (Makefile:588 'check-recursive': @fail=; if (target_option=k; case ${target_option-} in ?) ;; *) echo "am__make_runnin...) *** Error 1 in /opt/src/dovecot-2.3.10.1 (Makefile:706 'check-recursive': @fail=; if (target_option=k; case ${target_option-} in ?) ;; *)...)
cd /opt/src/dovecot-2.3.10.1/src/auth ./test-libpassword password scheme(PLAIN) ............................................... : ok test-libpassword.c:48: Assert failed: password_verify(plaintext, ¶ms, scheme, raw_password, siz, &error) == 1 password scheme(CRYPT) ............................................... : FAILED password scheme(PLAIN-MD4) ........................................... : ok password scheme(MD5) ................................................. : ok password scheme(SHA1) ................................................ : ok ... 1 / 25 tests failed