Include server binaries in failure artifacts

Build in subdir to keep objects separate from source
3 jobs for artifacts in 57 minutes and 32 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #6196
build-gnutls-mit-standalone-lloadd

00:53:47

passed #6194
build-no-threads-no-slapd

00:04:00

passed #6195
build-openssl-heimdal-lloadd

00:57:32