Snow Leopard buildbot is running out of disk space

[Christoph Iserlohn]

see for example:
https://build.macports.org/builders/buildports-snowleopard-x86_64/builds/20399/steps/compile/logs/stdio

| tee: /var/tmp/portresults/nodejs.log: No space left on device
| x ./opt/local/bin/macho-dump-mp-3.3: Seek failed: Invalid argument
| x ./opt/local/bin/opt-mp-3.3: Seek failed: Invalid argument
| tee: /var/tmp/portresults/nodejs.log: No space left on device
| tar: Error exit delayed from previous errors.
| tee: /var/tmp/portresults/nodejs.log: No space left on device
| Command failed: /usr/bin/bzip2 -d -c /opt/local/var/macports/software/llvm-3.3/llvm-3.3-3.3_1.darwin_10.x86_64.tbz2 | ( /usr/bin/tar -xvpf - )
| tee: /var/tmp/portresults/nodejs.log: No space left on device


-- 
Christoph