100644 blob f1761033a3e3ed1183f022bf15dbb7bfbc79ff33	BUILD
040000 tree 06b53eabe6e07d0c714dc0cdeef25f91d248f5ea	debian8_clang
040000 tree dd2e23978068fc34316617b481f8f906d1e4c686	ubuntu16_04_clang
040000 tree 3488baa64dffe96e26709d8b925a9fb0f43d11f5	windows