[submodule "src/libbacktrace"]
path = src/libbacktrace
url = https://github.com/rust-lang-nursery/libbacktrace
+[submodule "src/tools/lldb"]
+ path = src/tools/lldb
+ url = https://github.com/rust-lang-nursery/lldb/
+ branch = rust-release-70
+[submodule "src/tools/clang"]
+ path = src/tools/clang
+ url = https://github.com/rust-lang-nursery/clang/
+ branch = release_70