We run remote builds on "alfred" but one repeated build failure was not reported
by email. Presumably this was because the build job never got to be executed on
the remote machine. This is the console output:

Building remotely on alfred
ERROR: Failed to mkdirs: /net/alfred/files/hudson/workspace/wsit-javanet
java.io.IOException: Failed to mkdirs:
/net/alfred/files/hudson/workspace/wsit-javanet
at hudson.FilePath.mkdirs(FilePath.java:69)
at hudson.model.Project.checkout(Project.java:316)
at hudson.model.Build$1.run(Build.java:230)
at hudson.model.Run.run(Run.java:506)
at hudson.model.Build.run(Build.java:212)
at hudson.model.Executor.run(Executor.java:54)