040000 tree 7f1d88cc05542c69c8f6dce593f38f6e8961fc0d	builder
100644 blob b8547e288027aabe8c7c9185e6ae8c9992d4160a	check_tail_calls.rs
100644 blob a06c030b103b24c6e0b75777cf3a977005833ded	check_unsafety.rs
100644 blob 3d9753d72da58031ce92ae016e316701450bb368	errors.rs
100644 blob 8c7003b77876115286d48c3accce17fa01997a91	lib.rs
040000 tree 2a406bd2f137db960325ced7cf12a836304eb733	thir