040000 tree 55fbe025c393f32c18c2c9de160e7a7adc8b08bc	clang
040000 tree 6fb5ca58aeb6d3bfdcb60533fe40e49d1799c55b	golang
040000 tree f5ace80573a12e9bbf5888271a30ed3225b667b6	libcxx
040000 tree c7641d2c25177eb515c10197eced0a440c5da4d2	python