Sep 14 14:00:04.658 INFO checking lewton-0.5.2 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 14:00:04.658 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 14:00:04.658 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-0/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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=1000" "-e" "CMD=cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 14:00:04.808 INFO blam! 642c3995fe103df4c581e694b377b7edb9f839a9bd1f2d2172986a0227416a7c
Sep 14 14:00:04.812 INFO running `"docker" "start" "-a" "642c3995fe103df4c581e694b377b7edb9f839a9bd1f2d2172986a0227416a7c"`
Sep 14 14:00:05.347 INFO kablam! usermod: no changes
Sep 14 14:00:05.459 INFO kablam!     Checking ogg v0.4.1
Sep 14 14:00:05.468 INFO kablam!     Checking libloading v0.4.3
Sep 14 14:00:05.922 INFO kablam!     Checking al-sys v0.4.1
Sep 14 14:00:06.102 INFO kablam!     Checking lewton v0.5.2 (file:///source)
Sep 14 14:00:07.593 INFO kablam!     Checking alto v1.1.4
Sep 14 14:00:07.673 INFO kablam! warning: variable does not need to be mutable
Sep 14 14:00:07.673 INFO kablam!   --> src/huffman_tree.rs:96:8
Sep 14 14:00:07.673 INFO kablam!    |
Sep 14 14:00:07.673 INFO kablam! 96 |             let mut left = self.l.as_mut().unwrap();
Sep 14 14:00:07.673 INFO kablam!    |                 ----^^^^
Sep 14 14:00:07.673 INFO kablam!    |                 |
Sep 14 14:00:07.673 INFO kablam!    |                 help: remove this `mut`
Sep 14 14:00:07.673 INFO kablam!    |
Sep 14 14:00:07.673 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 14 14:00:07.673 INFO kablam! 
Sep 14 14:00:07.727 INFO kablam! warning: variable does not need to be mutable
Sep 14 14:00:07.727 INFO kablam!    --> src/imdct.rs:379:7
Sep 14 14:00:07.727 INFO kablam!     |
Sep 14 14:00:07.727 INFO kablam! 379 |         let mut u = &mut *buffer;
Sep 14 14:00:07.727 INFO kablam!     |             ----^
Sep 14 14:00:07.727 INFO kablam!     |             |
Sep 14 14:00:07.727 INFO kablam!     |             help: remove this `mut`
Sep 14 14:00:07.727 INFO kablam! 
Sep 14 14:00:07.727 INFO kablam! warning: variable does not need to be mutable
Sep 14 14:00:07.727 INFO kablam!    --> src/imdct.rs:380:7
Sep 14 14:00:07.727 INFO kablam!     |
Sep 14 14:00:07.727 INFO kablam! 380 |         let mut v = &mut *buf2;
Sep 14 14:00:07.727 INFO kablam!     |             ----^
Sep 14 14:00:07.727 INFO kablam!     |             |
Sep 14 14:00:07.727 INFO kablam!     |             help: remove this `mut`
Sep 14 14:00:07.727 INFO kablam! 
Sep 14 14:00:14.600 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 14 14:00:14.600 INFO kablam!   --> examples/player.rs:66:3
Sep 14 14:00:14.600 INFO kablam!    |
Sep 14 14:00:14.600 INFO kablam! 66 |         str_src.queue_buffer(buf);
Sep 14 14:00:14.600 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 14 14:00:14.600 INFO kablam!    |
Sep 14 14:00:14.600 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 14 14:00:14.600 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 14 14:00:14.600 INFO kablam! 
Sep 14 14:00:16.008 INFO kablam! error: variable does not need to be mutable
Sep 14 14:00:16.008 INFO kablam!   --> src/huffman_tree.rs:96:8
Sep 14 14:00:16.008 INFO kablam!    |
Sep 14 14:00:16.008 INFO kablam! 96 |             let mut left = self.l.as_mut().unwrap();
Sep 14 14:00:16.008 INFO kablam!    |                 ----^^^^
Sep 14 14:00:16.008 INFO kablam!    |                 |
Sep 14 14:00:16.008 INFO kablam!    |                 help: remove this `mut`
Sep 14 14:00:16.008 INFO kablam!    |
Sep 14 14:00:16.008 INFO kablam! note: lint level defined here
Sep 14 14:00:16.008 INFO kablam!   --> src/lib.rs:10:24
Sep 14 14:00:16.009 INFO kablam!    |
Sep 14 14:00:16.009 INFO kablam! 10 | #![cfg_attr(test, deny(warnings))]
Sep 14 14:00:16.009 INFO kablam!    |                        ^^^^^^^^
Sep 14 14:00:16.009 INFO kablam!    = note: #[deny(unused_mut)] implied by #[deny(warnings)]
Sep 14 14:00:16.009 INFO kablam! 
Sep 14 14:00:16.062 INFO kablam! error: variable does not need to be mutable
Sep 14 14:00:16.063 INFO kablam!    --> src/imdct.rs:379:7
Sep 14 14:00:16.063 INFO kablam!     |
Sep 14 14:00:16.063 INFO kablam! 379 |         let mut u = &mut *buffer;
Sep 14 14:00:16.063 INFO kablam!     |             ----^
Sep 14 14:00:16.063 INFO kablam!     |             |
Sep 14 14:00:16.063 INFO kablam!     |             help: remove this `mut`
Sep 14 14:00:16.063 INFO kablam! 
Sep 14 14:00:16.063 INFO kablam! error: variable does not need to be mutable
Sep 14 14:00:16.063 INFO kablam!    --> src/imdct.rs:380:7
Sep 14 14:00:16.063 INFO kablam!     |
Sep 14 14:00:16.063 INFO kablam! 380 |         let mut v = &mut *buf2;
Sep 14 14:00:16.063 INFO kablam!     |             ----^
Sep 14 14:00:16.063 INFO kablam!     |             |
Sep 14 14:00:16.063 INFO kablam!     |             help: remove this `mut`
Sep 14 14:00:16.063 INFO kablam! 
Sep 14 14:00:16.321 INFO kablam! error: aborting due to 3 previous errors
Sep 14 14:00:16.321 INFO kablam! 
Sep 14 14:00:16.331 INFO kablam! error: Could not compile `lewton`.
Sep 14 14:00:16.331 INFO kablam! 
Sep 14 14:00:16.331 INFO kablam! To learn more, run the command again with --verbose.
Sep 14 14:00:16.331 INFO kablam! su: No module specific data is present
Sep 14 14:00:17.129 INFO running `"docker" "rm" "-f" "642c3995fe103df4c581e694b377b7edb9f839a9bd1f2d2172986a0227416a7c"`
Sep 14 14:00:17.376 INFO blam! 642c3995fe103df4c581e694b377b7edb9f839a9bd1f2d2172986a0227416a7c