Aug 17 20:02:37.960 INFO checking hindley-milner-0.1.0 against master#142bb27373126edf8367f526358b6c72ecf1d8df for pr-53426
Aug 17 20:02:37.960 INFO running: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 20:02:37.961 INFO creating container for: cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets
Aug 17 20:02:37.961 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53426/master#142bb27373126edf8367f526358b6c72ecf1d8df:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-2/master#142bb27373126edf8367f526358b6c72ecf1d8df:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +142bb27373126edf8367f526358b6c72ecf1d8df-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 20:02:38.170 INFO blam! 170ea39cd0a1777d8c8c71838199b1e4a7f73712e90e023f86f2b60f0c52f299
Aug 17 20:02:38.172 INFO running `"docker" "start" "-a" "170ea39cd0a1777d8c8c71838199b1e4a7f73712e90e023f86f2b60f0c52f299"`
Aug 17 20:02:39.156 INFO kablam!     Checking hindley-milner v0.1.0 (file:///source)
Aug 17 20:02:41.075 INFO kablam! warning: struct is never constructed: `Namer`
Aug 17 20:02:41.075 INFO kablam!   --> src/lib.rs:77:1
Aug 17 20:02:41.075 INFO kablam!    |
Aug 17 20:02:41.075 INFO kablam! 77 | struct Namer {
Aug 17 20:02:41.075 INFO kablam!    | ^^^^^^^^^^^^
Aug 17 20:02:41.075 INFO kablam!    |
Aug 17 20:02:41.075 INFO kablam!    = note: #[warn(dead_code)] on by default
Aug 17 20:02:41.075 INFO kablam! 
Aug 17 20:02:41.076 INFO kablam! warning: method is never used: `next`
Aug 17 20:02:41.076 INFO kablam!   --> src/lib.rs:83:5
Aug 17 20:02:41.076 INFO kablam!    |
Aug 17 20:02:41.076 INFO kablam! 83 |     fn next(&mut self) -> String {
Aug 17 20:02:41.076 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 17 20:02:41.077 INFO kablam! 
Aug 17 20:02:41.077 INFO kablam! warning: method is never used: `name`
Aug 17 20:02:41.077 INFO kablam!   --> src/lib.rs:89:5
Aug 17 20:02:41.077 INFO kablam!    |
Aug 17 20:02:41.077 INFO kablam! 89 |     fn name(&mut self, t: ArenaType) -> String {
Aug 17 20:02:41.077 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 17 20:02:41.077 INFO kablam! 
Aug 17 20:02:41.077 INFO kablam! warning: method is never used: `id`
Aug 17 20:02:41.077 INFO kablam!    --> src/lib.rs:124:5
Aug 17 20:02:41.077 INFO kablam!     |
Aug 17 20:02:41.077 INFO kablam! 124 |     fn id(&self) -> usize {
Aug 17 20:02:41.077 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^
Aug 17 20:02:41.077 INFO kablam! 
Aug 17 20:02:41.077 INFO kablam! warning: method is never used: `as_string`
Aug 17 20:02:41.077 INFO kablam!    --> src/lib.rs:146:5
Aug 17 20:02:41.077 INFO kablam!     |
Aug 17 20:02:41.077 INFO kablam! 146 |     fn as_string(&self, a: &Vec<Type>, namer: &mut Namer) -> String {
Aug 17 20:02:41.077 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 17 20:02:41.077 INFO kablam! 
Aug 17 20:02:41.077 INFO kablam! warning: function is never used: `test_env`
Aug 17 20:02:41.077 INFO kablam!    --> src/lib.rs:537:1
Aug 17 20:02:41.077 INFO kablam!     |
Aug 17 20:02:41.077 INFO kablam! 537 | fn test_env() -> (Vec<Type>, Env) {
Aug 17 20:02:41.077 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 17 20:02:41.077 INFO kablam! 
Aug 17 20:02:41.265 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.15s
Aug 17 20:02:41.268 INFO kablam! su: No module specific data is present
Aug 17 20:02:41.959 INFO running `"docker" "rm" "-f" "170ea39cd0a1777d8c8c71838199b1e4a7f73712e90e023f86f2b60f0c52f299"`
Aug 17 20:02:42.160 INFO blam! 170ea39cd0a1777d8c8c71838199b1e4a7f73712e90e023f86f2b60f0c52f299