040000 tree 754ff33c45f690f98a33dfa9a1e473624fc9e1f6	backtrace-sys
040000 tree c04e975f72a933cca3aa75d499551fca793761e6	cmake
040000 tree 80698d455116b13d8405e34a7ca6f8921101af97	pkg-config
040000 tree af35a03e104277b01f1a7deacaf7ae5182d00a1e	servo-freetype-sys
040000 tree 9c5bc9888949cc537901fe55d587876eb81b6978	winapi-util
040000 tree bfa08de09ccc684c12af595a90fbc0b65d87d340	winapi