Source: sbuild Severity: normal sbuild-createchroot attempts to check the output of $(schroot --list --all-source-chroots) to make sure that the to be created chroot doesn't exist already. In addition to checking the output of the command, it should also check the exit code of the command because the command might fail with a non zero exit status. This happens for example when there exists multiple chroots with the same name. In that case, sbuild-createchroot should abort.