Sep 01 15:36:42.273 INFO checking lewton-0.5.2 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 15:36:42.273 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 15:36:42.273 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-0/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 15:36:42.454 INFO blam! f084458180e482c86631c663472d39eacde00472c448cd4e5235b1a52318bcf9
Sep 01 15:36:42.456 INFO running `"docker" "start" "-a" "f084458180e482c86631c663472d39eacde00472c448cd4e5235b1a52318bcf9"`
Sep 01 15:36:43.169 INFO kablam!     Checking lewton v0.5.2 (file:///source)
Sep 01 15:36:43.171 INFO kablam!     Checking al-sys v0.4.1
Sep 01 15:36:45.367 INFO kablam! warning: variable does not need to be mutable
Sep 01 15:36:45.367 INFO kablam!   --> src/huffman_tree.rs:96:8
Sep 01 15:36:45.367 INFO kablam!    |
Sep 01 15:36:45.367 INFO kablam! 96 |             let mut left = self.l.as_mut().unwrap();
Sep 01 15:36:45.367 INFO kablam!    |                 ----^^^^
Sep 01 15:36:45.367 INFO kablam!    |                 |
Sep 01 15:36:45.367 INFO kablam!    |                 help: remove this `mut`
Sep 01 15:36:45.367 INFO kablam!    |
Sep 01 15:36:45.367 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 01 15:36:45.367 INFO kablam! 
Sep 01 15:36:45.441 INFO kablam! warning: variable does not need to be mutable
Sep 01 15:36:45.441 INFO kablam!    --> src/imdct.rs:379:7
Sep 01 15:36:45.441 INFO kablam!     |
Sep 01 15:36:45.441 INFO kablam! 379 |         let mut u = &mut *buffer;
Sep 01 15:36:45.441 INFO kablam!     |             ----^
Sep 01 15:36:45.441 INFO kablam!     |             |
Sep 01 15:36:45.441 INFO kablam!     |             help: remove this `mut`
Sep 01 15:36:45.441 INFO kablam! 
Sep 01 15:36:45.441 INFO kablam! warning: variable does not need to be mutable
Sep 01 15:36:45.441 INFO kablam!    --> src/imdct.rs:380:7
Sep 01 15:36:45.441 INFO kablam!     |
Sep 01 15:36:45.441 INFO kablam! 380 |         let mut v = &mut *buf2;
Sep 01 15:36:45.441 INFO kablam!     |             ----^
Sep 01 15:36:45.441 INFO kablam!     |             |
Sep 01 15:36:45.441 INFO kablam!     |             help: remove this `mut`
Sep 01 15:36:45.441 INFO kablam! 
Sep 01 15:36:45.604 INFO kablam!     Checking alto v1.1.4
Sep 01 15:36:54.334 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 01 15:36:54.334 INFO kablam!   --> examples/player.rs:66:3
Sep 01 15:36:54.334 INFO kablam!    |
Sep 01 15:36:54.334 INFO kablam! 66 |         str_src.queue_buffer(buf);
Sep 01 15:36:54.334 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 15:36:54.334 INFO kablam!    |
Sep 01 15:36:54.334 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 01 15:36:54.334 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 01 15:36:54.334 INFO kablam! 
Sep 01 15:36:56.172 INFO kablam! error: variable does not need to be mutable
Sep 01 15:36:56.172 INFO kablam!   --> src/huffman_tree.rs:96:8
Sep 01 15:36:56.172 INFO kablam!    |
Sep 01 15:36:56.172 INFO kablam! 96 |             let mut left = self.l.as_mut().unwrap();
Sep 01 15:36:56.172 INFO kablam!    |                 ----^^^^
Sep 01 15:36:56.172 INFO kablam!    |                 |
Sep 01 15:36:56.172 INFO kablam!    |                 help: remove this `mut`
Sep 01 15:36:56.172 INFO kablam!    |
Sep 01 15:36:56.172 INFO kablam! note: lint level defined here
Sep 01 15:36:56.172 INFO kablam!   --> src/lib.rs:10:24
Sep 01 15:36:56.172 INFO kablam!    |
Sep 01 15:36:56.172 INFO kablam! 10 | #![cfg_attr(test, deny(warnings))]
Sep 01 15:36:56.172 INFO kablam!    |                        ^^^^^^^^
Sep 01 15:36:56.172 INFO kablam!    = note: #[deny(unused_mut)] implied by #[deny(warnings)]
Sep 01 15:36:56.172 INFO kablam! 
Sep 01 15:36:56.242 INFO kablam! error: variable does not need to be mutable
Sep 01 15:36:56.242 INFO kablam!    --> src/imdct.rs:379:7
Sep 01 15:36:56.243 INFO kablam!     |
Sep 01 15:36:56.243 INFO kablam! 379 |         let mut u = &mut *buffer;
Sep 01 15:36:56.243 INFO kablam!     |             ----^
Sep 01 15:36:56.243 INFO kablam!     |             |
Sep 01 15:36:56.243 INFO kablam!     |             help: remove this `mut`
Sep 01 15:36:56.243 INFO kablam! 
Sep 01 15:36:56.243 INFO kablam! error: variable does not need to be mutable
Sep 01 15:36:56.243 INFO kablam!    --> src/imdct.rs:380:7
Sep 01 15:36:56.243 INFO kablam!     |
Sep 01 15:36:56.243 INFO kablam! 380 |         let mut v = &mut *buf2;
Sep 01 15:36:56.243 INFO kablam!     |             ----^
Sep 01 15:36:56.243 INFO kablam!     |             |
Sep 01 15:36:56.243 INFO kablam!     |             help: remove this `mut`
Sep 01 15:36:56.243 INFO kablam! 
Sep 01 15:36:56.541 INFO kablam! error: aborting due to 3 previous errors
Sep 01 15:36:56.541 INFO kablam! 
Sep 01 15:36:56.553 INFO kablam! error: Could not compile `lewton`.
Sep 01 15:36:56.553 INFO kablam! 
Sep 01 15:36:56.553 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 15:36:56.555 INFO kablam! su: No module specific data is present
Sep 01 15:36:57.154 INFO running `"docker" "rm" "-f" "f084458180e482c86631c663472d39eacde00472c448cd4e5235b1a52318bcf9"`
Sep 01 15:36:57.285 INFO blam! f084458180e482c86631c663472d39eacde00472c448cd4e5235b1a52318bcf9