extra-x86_64-build 
:: Synchronizing package databases...
 core is up to date
 extra is up to date
 community is up to date
:: Starting full system upgrade...
 there is nothing to do
==> Building in chroot for [extra] (x86_64)...
==> Synchronizing chroot copy [/var/lib/archbuild/extra-x86_64/root] -> [builduser]...done
==> Making package: couchdb 2.3.1-4 (Sun Oct  4 21:33:35 2020)
==> Retrieving sources...
  -> Found apache-couchdb-2.3.1.tar.gz
  -> Found apache-couchdb-2.3.1.tar.gz.asc
  -> Found couchdb.service
  -> Found couchdb.sysusers
  -> Found couchdb.tmpfiles
  -> Found datadirs.ini
  -> Found couchdb-erlang22.patch
==> Validating source files with sha256sums...
    apache-couchdb-2.3.1.tar.gz ... Passed
    apache-couchdb-2.3.1.tar.gz.asc ... Skipped
    couchdb.service ... Passed
    couchdb.sysusers ... Passed
    couchdb.tmpfiles ... Passed
    datadirs.ini ... Passed
    couchdb-erlang22.patch ... Passed
==> Verifying source file signatures with gpg...
    apache-couchdb-2.3.1.tar.gz ... Passed
==> Making package: couchdb 2.3.1-4 (Sun 04 Oct 2020 9:33:39 PM)
==> Checking runtime dependencies...
==> Installing missing dependencies...
resolving dependencies...
looking for conflicting packages...

Packages (2) nspr-4.29-1  js185-1.0.0-9

Total Download Size:   1.35 MiB
Total Installed Size:  7.93 MiB

:: Proceed with installation? [Y/n] 
:: Retrieving packages...
 js185-1.0.0-9-x86_64 1380.1 KiB  4.31 MiB/s 00:00 [######################] 100%
(2/2) checking keys in keyring                     [######################] 100%
(2/2) checking package integrity                   [######################] 100%
(2/2) loading package files                        [######################] 100%
(2/2) checking for file conflicts                  [######################] 100%
:: Processing package changes...
(1/2) installing nspr                              [######################] 100%
(2/2) installing js185                             [######################] 100%
==> Checking buildtime dependencies...
==> Installing missing dependencies...
resolving dependencies...
looking for conflicting packages...

Packages (1) erlang-nox-23.1-1

Total Installed Size:  99.73 MiB

:: Proceed with installation? [Y/n] 
(1/1) checking keys in keyring                     [######################] 100%
(1/1) checking package integrity                   [######################] 100%
(1/1) loading package files                        [######################] 100%
(1/1) checking for file conflicts                  [######################] 100%
:: Processing package changes...
(1/1) installing erlang-nox                        [######################] 100%
Optional dependencies for erlang-nox
    erlang-unixodbc: database support
    java-environment: for Java support
    lksctp-tools: for SCTP support
==> Retrieving sources...
  -> Found apache-couchdb-2.3.1.tar.gz
  -> Found apache-couchdb-2.3.1.tar.gz.asc
  -> Found couchdb.service
  -> Found couchdb.sysusers
  -> Found couchdb.tmpfiles
  -> Found datadirs.ini
  -> Found couchdb-erlang22.patch
==> WARNING: Skipping all source file integrity checks.
==> Extracting sources...
  -> Extracting apache-couchdb-2.3.1.tar.gz with bsdtar
==> Starting prepare()...
patching file rebar.config.script
Hunk #2 succeeded at 130 (offset -20 lines).
patching file src/snappy/rebar.config
==> Starting build()...
==> configuring couchdb in rel/couchdb.config
You have configured Apache CouchDB, time to relax. Relax.
==> config (compile)
ERROR: OTP release 23 does not match required regex 17|18|19|20|21|22
ERROR: compile failed while processing /build/couchdb/src/apache-couchdb-2.3.1/src/config: rebar_abort
make: *** [Makefile:114: couch] Error 1
==> ERROR: A failure occurred in build().
    Aborting...
==> ERROR: Build failed, check /var/lib/archbuild/extra-x86_64/builduser/build