sudo port -kns upgrade --force cdrtools build.jobs=1Password:
Portfile changed since last build; discarding previous state.
--->  Computing dependencies for cdrtools
--->  Deactivating cdrtools @3.00_1
--->  Cleaning cdrtools
--->  Uninstalling cdrtools @3.00_1
--->  Cleaning cdrtools
--->  Computing dependencies for cdrtools
--->  Fetching distfiles for cdrtools
--->  Verifying checksum(s) for cdrtools
--->  Extracting cdrtools
--->  Configuring cdrtools
--->  Building cdrtools
Error: The following programs did not build: isoinfo, mkisofs
Error: org.macports.build for port cdrtools returned: build failed
Please see the log file for port cdrtools for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_sysutils_cdrtools/cdrtools/main.log