Sep 02 09:07:52.807 INFO checking lewton-0.5.2 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 09:07:52.807 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 09:07:52.807 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-0/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 02 09:07:53.014 INFO blam! b0bb06c9b9ce6f71467d483b11cdf1789bb53002f1e231e43f79e63b5f455880
Sep 02 09:07:53.016 INFO running `"docker" "start" "-a" "b0bb06c9b9ce6f71467d483b11cdf1789bb53002f1e231e43f79e63b5f455880"`
Sep 02 09:07:53.705 INFO kablam!    Compiling procedural-masquerade v0.1.5
Sep 02 09:07:53.705 INFO kablam!     Checking stable_deref_trait v1.1.1
Sep 02 09:07:53.707 INFO kablam!    Compiling syn v0.11.11
Sep 02 09:07:53.708 INFO kablam!     Checking lewton v0.5.2 (file:///source)
Sep 02 09:07:56.173 INFO kablam! warning: variable does not need to be mutable
Sep 02 09:07:56.173 INFO kablam!   --> src/huffman_tree.rs:96:8
Sep 02 09:07:56.173 INFO kablam!    |
Sep 02 09:07:56.173 INFO kablam! 96 |             let mut left = self.l.as_mut().unwrap();
Sep 02 09:07:56.173 INFO kablam!    |                 ----^^^^
Sep 02 09:07:56.173 INFO kablam!    |                 |
Sep 02 09:07:56.173 INFO kablam!    |                 help: remove this `mut`
Sep 02 09:07:56.173 INFO kablam!    |
Sep 02 09:07:56.173 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 02 09:07:56.173 INFO kablam! 
Sep 02 09:07:56.234 INFO kablam! warning: variable does not need to be mutable
Sep 02 09:07:56.234 INFO kablam!    --> src/imdct.rs:379:7
Sep 02 09:07:56.234 INFO kablam!     |
Sep 02 09:07:56.234 INFO kablam! 379 |         let mut u = &mut *buffer;
Sep 02 09:07:56.234 INFO kablam!     |             ----^
Sep 02 09:07:56.234 INFO kablam!     |             |
Sep 02 09:07:56.234 INFO kablam!     |             help: remove this `mut`
Sep 02 09:07:56.234 INFO kablam! 
Sep 02 09:07:56.234 INFO kablam! warning: variable does not need to be mutable
Sep 02 09:07:56.234 INFO kablam!    --> src/imdct.rs:380:7
Sep 02 09:07:56.234 INFO kablam!     |
Sep 02 09:07:56.234 INFO kablam! 380 |         let mut v = &mut *buf2;
Sep 02 09:07:56.234 INFO kablam!     |             ----^
Sep 02 09:07:56.234 INFO kablam!     |             |
Sep 02 09:07:56.234 INFO kablam!     |             help: remove this `mut`
Sep 02 09:07:56.235 INFO kablam! 
Sep 02 09:08:05.204 INFO kablam!    Compiling rental-impl v0.4.15
Sep 02 09:08:17.147 INFO kablam!     Checking rental v0.4.16
Sep 02 09:08:18.035 INFO kablam!     Checking al-sys v0.4.1
Sep 02 09:08:20.166 INFO kablam!     Checking alto v1.1.4
Sep 02 09:08:29.700 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 02 09:08:29.700 INFO kablam!   --> examples/player.rs:66:3
Sep 02 09:08:29.700 INFO kablam!    |
Sep 02 09:08:29.700 INFO kablam! 66 |         str_src.queue_buffer(buf);
Sep 02 09:08:29.700 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 02 09:08:29.700 INFO kablam!    |
Sep 02 09:08:29.700 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 02 09:08:29.700 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 02 09:08:29.700 INFO kablam! 
Sep 02 09:08:31.747 INFO kablam! error: variable does not need to be mutable
Sep 02 09:08:31.747 INFO kablam!   --> src/huffman_tree.rs:96:8
Sep 02 09:08:31.747 INFO kablam!    |
Sep 02 09:08:31.747 INFO kablam! 96 |             let mut left = self.l.as_mut().unwrap();
Sep 02 09:08:31.747 INFO kablam!    |                 ----^^^^
Sep 02 09:08:31.747 INFO kablam!    |                 |
Sep 02 09:08:31.747 INFO kablam!    |                 help: remove this `mut`
Sep 02 09:08:31.747 INFO kablam!    |
Sep 02 09:08:31.747 INFO kablam! note: lint level defined here
Sep 02 09:08:31.747 INFO kablam!   --> src/lib.rs:10:24
Sep 02 09:08:31.747 INFO kablam!    |
Sep 02 09:08:31.747 INFO kablam! 10 | #![cfg_attr(test, deny(warnings))]
Sep 02 09:08:31.747 INFO kablam!    |                        ^^^^^^^^
Sep 02 09:08:31.747 INFO kablam!    = note: #[deny(unused_mut)] implied by #[deny(warnings)]
Sep 02 09:08:31.747 INFO kablam! 
Sep 02 09:08:31.790 INFO kablam! error: variable does not need to be mutable
Sep 02 09:08:31.790 INFO kablam!    --> src/imdct.rs:379:7
Sep 02 09:08:31.790 INFO kablam!     |
Sep 02 09:08:31.790 INFO kablam! 379 |         let mut u = &mut *buffer;
Sep 02 09:08:31.790 INFO kablam!     |             ----^
Sep 02 09:08:31.790 INFO kablam!     |             |
Sep 02 09:08:31.790 INFO kablam!     |             help: remove this `mut`
Sep 02 09:08:31.790 INFO kablam! 
Sep 02 09:08:31.790 INFO kablam! error: variable does not need to be mutable
Sep 02 09:08:31.790 INFO kablam!    --> src/imdct.rs:380:7
Sep 02 09:08:31.790 INFO kablam!     |
Sep 02 09:08:31.790 INFO kablam! 380 |         let mut v = &mut *buf2;
Sep 02 09:08:31.790 INFO kablam!     |             ----^
Sep 02 09:08:31.790 INFO kablam!     |             |
Sep 02 09:08:31.791 INFO kablam!     |             help: remove this `mut`
Sep 02 09:08:31.791 INFO kablam! 
Sep 02 09:08:32.061 INFO kablam! error: aborting due to 3 previous errors
Sep 02 09:08:32.061 INFO kablam! 
Sep 02 09:08:32.070 INFO kablam! error: Could not compile `lewton`.
Sep 02 09:08:32.070 INFO kablam! 
Sep 02 09:08:32.070 INFO kablam! To learn more, run the command again with --verbose.
Sep 02 09:08:32.071 INFO kablam! su: No module specific data is present
Sep 02 09:08:32.496 INFO running `"docker" "rm" "-f" "b0bb06c9b9ce6f71467d483b11cdf1789bb53002f1e231e43f79e63b5f455880"`
Sep 02 09:08:32.641 INFO blam! b0bb06c9b9ce6f71467d483b11cdf1789bb53002f1e231e43f79e63b5f455880