040000 tree 23192a3e24c866ba57a4f1d890867740493c2dd4	bazel_0.13.0
040000 tree d64cad19d279d6f41c017d80a138ce0ac26ccdff	bazel_0.14.1
040000 tree 0f38df3d7e9944a74f47d3e6d3b69c8dee1fdafb	bazel_0.15.0