/singularity-container_3.10.2+ds3-1_source.changes is already present on target host: singularity-container_3.10.2+ds3-1_amd64.buildinfo Either you already uploaded it, or someone else came first. Job singularity-container_3.10.2+ds3-1_source.changes removed. Greetings, Your Debian queue daemon (running on host usper.debian.org)