-grep -q "aptarchive/pool/foo2_0.8.15_amd64.deb :40:trying to overwrite '/usr/bin/file-conflict', which is also in package foo1 0.8.15" apt-progress.log && msgpass || msgfail
+grep -q "aptarchive/pool/foo2_0.8.15_amd64.deb :40:trying to overwrite '/usr/bin/file-conflict', which is also in package foo1 0.8.15" apt-progress.log && msgpass || (cat apt-progress.log && msgfail)