Jul 12 07:02:41.502 INFO checking hindley-milner-0.1.0 against try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255 for pr-52234
Jul 12 07:02:41.502 INFO running: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 12 07:02:41.502 INFO creating container for: cargo +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets
Jul 12 07:02:41.502 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-52234/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-7/try#d39a6f7eddafd45dcc60e99001b8cd08c2bd3255:/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 +d39a6f7eddafd45dcc60e99001b8cd08c2bd3255-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 12 07:02:41.726 INFO blam! 55e0cb2e3d2643fb4c15641959da0da3052b42585b9e26d10573d6d32049a9d3
Jul 12 07:02:41.729 INFO running `"docker" "start" "-a" "55e0cb2e3d2643fb4c15641959da0da3052b42585b9e26d10573d6d32049a9d3"`
Jul 12 07:02:42.956 INFO kablam!     Checking hindley-milner v0.1.0 (file:///source)
Jul 12 07:02:44.781 INFO kablam! warning: struct is never used: `Namer`
Jul 12 07:02:44.781 INFO kablam!   --> src/lib.rs:77:1
Jul 12 07:02:44.781 INFO kablam!    |
Jul 12 07:02:44.781 INFO kablam! 77 | struct Namer {
Jul 12 07:02:44.781 INFO kablam!    | ^^^^^^^^^^^^
Jul 12 07:02:44.781 INFO kablam!    |
Jul 12 07:02:44.781 INFO kablam!    = note: #[warn(dead_code)] on by default
Jul 12 07:02:44.781 INFO kablam! 
Jul 12 07:02:44.782 INFO kablam! warning: method is never used: `next`
Jul 12 07:02:44.782 INFO kablam!   --> src/lib.rs:83:5
Jul 12 07:02:44.782 INFO kablam!    |
Jul 12 07:02:44.782 INFO kablam! 83 |     fn next(&mut self) -> String {
Jul 12 07:02:44.782 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jul 12 07:02:44.782 INFO kablam! 
Jul 12 07:02:44.782 INFO kablam! warning: method is never used: `name`
Jul 12 07:02:44.782 INFO kablam!   --> src/lib.rs:89:5
Jul 12 07:02:44.782 INFO kablam!    |
Jul 12 07:02:44.783 INFO kablam! 89 |     fn name(&mut self, t: ArenaType) -> String {
Jul 12 07:02:44.783 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jul 12 07:02:44.783 INFO kablam! 
Jul 12 07:02:44.783 INFO kablam! warning: method is never used: `id`
Jul 12 07:02:44.783 INFO kablam!    --> src/lib.rs:124:5
Jul 12 07:02:44.783 INFO kablam!     |
Jul 12 07:02:44.783 INFO kablam! 124 |     fn id(&self) -> usize {
Jul 12 07:02:44.783 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^
Jul 12 07:02:44.783 INFO kablam! 
Jul 12 07:02:44.783 INFO kablam! warning: method is never used: `as_string`
Jul 12 07:02:44.783 INFO kablam!    --> src/lib.rs:146:5
Jul 12 07:02:44.783 INFO kablam!     |
Jul 12 07:02:44.783 INFO kablam! 146 |     fn as_string(&self, a: &Vec<Type>, namer: &mut Namer) -> String {
Jul 12 07:02:44.783 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jul 12 07:02:44.783 INFO kablam! 
Jul 12 07:02:44.783 INFO kablam! warning: static item is never used: `INTEGER`
Jul 12 07:02:44.783 INFO kablam!    --> src/lib.rs:206:1
Jul 12 07:02:44.783 INFO kablam!     |
Jul 12 07:02:44.783 INFO kablam! 206 | / lazy_static! {
Jul 12 07:02:44.783 INFO kablam! 207 | |     // Basic integer
Jul 12 07:02:44.783 INFO kablam! 208 | |     static ref INTEGER: Type = Type::new_operator(0, "int", &[]);
Jul 12 07:02:44.783 INFO kablam! 209 | |     // Basic bool
Jul 12 07:02:44.783 INFO kablam! 210 | |     static ref BOOL: Type = Type::new_operator(1, "bool", &[]);
Jul 12 07:02:44.783 INFO kablam! 211 | | }
Jul 12 07:02:44.783 INFO kablam!     | |_^
Jul 12 07:02:44.783 INFO kablam!     |
Jul 12 07:02:44.783 INFO kablam!     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Jul 12 07:02:44.784 INFO kablam! 
Jul 12 07:02:44.784 INFO kablam! warning: static item is never used: `BOOL`
Jul 12 07:02:44.784 INFO kablam!    --> src/lib.rs:206:1
Jul 12 07:02:44.784 INFO kablam!     |
Jul 12 07:02:44.784 INFO kablam! 206 | / lazy_static! {
Jul 12 07:02:44.784 INFO kablam! 207 | |     // Basic integer
Jul 12 07:02:44.784 INFO kablam! 208 | |     static ref INTEGER: Type = Type::new_operator(0, "int", &[]);
Jul 12 07:02:44.784 INFO kablam! 209 | |     // Basic bool
Jul 12 07:02:44.784 INFO kablam! 210 | |     static ref BOOL: Type = Type::new_operator(1, "bool", &[]);
Jul 12 07:02:44.784 INFO kablam! 211 | | }
Jul 12 07:02:44.784 INFO kablam!     | |_^
Jul 12 07:02:44.784 INFO kablam!     |
Jul 12 07:02:44.784 INFO kablam!     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Jul 12 07:02:44.784 INFO kablam! 
Jul 12 07:02:44.784 INFO kablam! warning: function is never used: `test_env`
Jul 12 07:02:44.784 INFO kablam!    --> src/lib.rs:537:1
Jul 12 07:02:44.784 INFO kablam!     |
Jul 12 07:02:44.784 INFO kablam! 537 | fn test_env() -> (Vec<Type>, Env) {
Jul 12 07:02:44.784 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jul 12 07:02:44.784 INFO kablam! 
Jul 12 07:02:44.846 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
Jul 12 07:02:44.855 INFO kablam! su: No module specific data is present
Jul 12 07:02:45.454 INFO running `"docker" "rm" "-f" "55e0cb2e3d2643fb4c15641959da0da3052b42585b9e26d10573d6d32049a9d3"`
Jul 12 07:02:45.634 INFO blam! 55e0cb2e3d2643fb4c15641959da0da3052b42585b9e26d10573d6d32049a9d3