Sep 01 15:36:44.142 INFO checking lewton-0.5.2 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 15:36:44.142 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 15:36:44.142 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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 +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 15:36:44.323 INFO blam! 199a9bd61f27407043dccf400283d1741f950d743e2ff32d2d404198145725ed
Sep 01 15:36:44.325 INFO running `"docker" "start" "-a" "199a9bd61f27407043dccf400283d1741f950d743e2ff32d2d404198145725ed"`
Sep 01 15:36:44.981 INFO kablam!     Checking lewton v0.5.2 (file:///source)
Sep 01 15:36:44.981 INFO kablam!     Checking rental v0.4.16
Sep 01 15:36:46.255 INFO kablam!     Checking al-sys v0.4.1
Sep 01 15:36:47.610 INFO kablam! warning: variable does not need to be mutable
Sep 01 15:36:47.610 INFO kablam!   --> src/huffman_tree.rs:96:8
Sep 01 15:36:47.610 INFO kablam!    |
Sep 01 15:36:47.610 INFO kablam! 96 |             let mut left = self.l.as_mut().unwrap();
Sep 01 15:36:47.610 INFO kablam!    |                 ----^^^^
Sep 01 15:36:47.610 INFO kablam!    |                 |
Sep 01 15:36:47.610 INFO kablam!    |                 help: remove this `mut`
Sep 01 15:36:47.610 INFO kablam!    |
Sep 01 15:36:47.610 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 01 15:36:47.610 INFO kablam! 
Sep 01 15:36:47.682 INFO kablam! warning: variable does not need to be mutable
Sep 01 15:36:47.682 INFO kablam!    --> src/imdct.rs:379:7
Sep 01 15:36:47.682 INFO kablam!     |
Sep 01 15:36:47.683 INFO kablam! 379 |         let mut u = &mut *buffer;
Sep 01 15:36:47.683 INFO kablam!     |             ----^
Sep 01 15:36:47.683 INFO kablam!     |             |
Sep 01 15:36:47.683 INFO kablam!     |             help: remove this `mut`
Sep 01 15:36:47.683 INFO kablam! 
Sep 01 15:36:47.683 INFO kablam! warning: variable does not need to be mutable
Sep 01 15:36:47.683 INFO kablam!    --> src/imdct.rs:380:7
Sep 01 15:36:47.683 INFO kablam!     |
Sep 01 15:36:47.683 INFO kablam! 380 |         let mut v = &mut *buf2;
Sep 01 15:36:47.683 INFO kablam!     |             ----^
Sep 01 15:36:47.683 INFO kablam!     |             |
Sep 01 15:36:47.683 INFO kablam!     |             help: remove this `mut`
Sep 01 15:36:47.683 INFO kablam! 
Sep 01 15:36:48.530 INFO kablam!     Checking alto v1.1.4
Sep 01 15:36:57.149 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 01 15:36:57.149 INFO kablam!   --> examples/player.rs:66:3
Sep 01 15:36:57.150 INFO kablam!    |
Sep 01 15:36:57.150 INFO kablam! 66 |         str_src.queue_buffer(buf);
Sep 01 15:36:57.150 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 15:36:57.150 INFO kablam!    |
Sep 01 15:36:57.150 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 01 15:36:57.150 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 01 15:36:57.150 INFO kablam! 
Sep 01 15:36:59.450 INFO kablam! error: variable does not need to be mutable
Sep 01 15:36:59.450 INFO kablam!   --> src/huffman_tree.rs:96:8
Sep 01 15:36:59.450 INFO kablam!    |
Sep 01 15:36:59.450 INFO kablam! 96 |             let mut left = self.l.as_mut().unwrap();
Sep 01 15:36:59.450 INFO kablam!    |                 ----^^^^
Sep 01 15:36:59.450 INFO kablam!    |                 |
Sep 01 15:36:59.450 INFO kablam!    |                 help: remove this `mut`
Sep 01 15:36:59.450 INFO kablam!    |
Sep 01 15:36:59.450 INFO kablam! note: lint level defined here
Sep 01 15:36:59.450 INFO kablam!   --> src/lib.rs:10:24
Sep 01 15:36:59.450 INFO kablam!    |
Sep 01 15:36:59.450 INFO kablam! 10 | #![cfg_attr(test, deny(warnings))]
Sep 01 15:36:59.450 INFO kablam!    |                        ^^^^^^^^
Sep 01 15:36:59.450 INFO kablam!    = note: #[deny(unused_mut)] implied by #[deny(warnings)]
Sep 01 15:36:59.450 INFO kablam! 
Sep 01 15:36:59.522 INFO kablam! error: variable does not need to be mutable
Sep 01 15:36:59.522 INFO kablam!    --> src/imdct.rs:379:7
Sep 01 15:36:59.522 INFO kablam!     |
Sep 01 15:36:59.522 INFO kablam! 379 |         let mut u = &mut *buffer;
Sep 01 15:36:59.522 INFO kablam!     |             ----^
Sep 01 15:36:59.522 INFO kablam!     |             |
Sep 01 15:36:59.522 INFO kablam!     |             help: remove this `mut`
Sep 01 15:36:59.522 INFO kablam! 
Sep 01 15:36:59.523 INFO kablam! error: variable does not need to be mutable
Sep 01 15:36:59.523 INFO kablam!    --> src/imdct.rs:380:7
Sep 01 15:36:59.523 INFO kablam!     |
Sep 01 15:36:59.523 INFO kablam! 380 |         let mut v = &mut *buf2;
Sep 01 15:36:59.523 INFO kablam!     |             ----^
Sep 01 15:36:59.523 INFO kablam!     |             |
Sep 01 15:36:59.523 INFO kablam!     |             help: remove this `mut`
Sep 01 15:36:59.523 INFO kablam! 
Sep 01 15:36:59.857 INFO kablam! error: aborting due to 3 previous errors
Sep 01 15:36:59.857 INFO kablam! 
Sep 01 15:36:59.865 INFO kablam! error: Could not compile `lewton`.
Sep 01 15:36:59.865 INFO kablam! 
Sep 01 15:36:59.865 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 15:36:59.866 INFO kablam! su: No module specific data is present
Sep 01 15:37:00.590 INFO running `"docker" "rm" "-f" "199a9bd61f27407043dccf400283d1741f950d743e2ff32d2d404198145725ed"`
Sep 01 15:37:00.686 INFO blam! 199a9bd61f27407043dccf400283d1741f950d743e2ff32d2d404198145725ed