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040000 tree 8a8fc7487631b3df8b128646143510ec462b2088	rust-bootstrap
040000 tree 30dea91d63fbf39066a3d0939cd83e369fa7492b	rust-host
040000 tree eef4d6cd6ebeb3e0c147f176d85edf2af7c5e3a8	rust
040000 tree 399b66a823dd986c9416a6e0873733ec33457ad9	swig