Ensure directories are periodically cleaned up (saves leaking a directory name every compile)
Ensure directories are periodically cleaned up (saves leaking a directory name every compile)

mcanthony/gcc-explorer,mattgodbolt/compiler-explorer,dkm/gcc-explorer,olajep/gcc-explorer,dkm/gcc-explorer,mcanthony/gcc-explorer,dkm/gcc-explorer,olajep/gcc-explorer,ibuclaw/gcc-explorer,dkm/gcc-explorer,olajep/gcc-explorer,mcanthony/gcc-explorer,zengyuleo/gcc-explorer,mattgodbolt/compiler-explorer,dkm/gcc-explorer,mattgodbolt/gcc-explorer,mattgodbolt/gcc-explorer,zengyuleo/gcc-explorer,ibuclaw/gcc-explorer,mattgodbolt/gcc-explorer,mattgodbolt/gcc-explorer,mattgodbolt/compiler-explorer,ibuclaw/gcc-explorer,ibuclaw/gcc-explorer,mattgodbolt/compiler-explorer,dkm/gcc-explorer,dkm/gcc-explorer,dkm/gcc-explorer,olajep/gcc-explorer,mattgodbolt/compiler-explorer,mattgodbolt/gcc-explorer,olajep/gcc-explorer,mattgodbolt/compiler-explorer,mattgodbolt/compiler-explorer,dkm/gcc-explorer,mattgodbolt/compiler-explorer,olajep/gcc-explorer,zengyuleo/gcc-explorer,ibuclaw/gcc-explorer