Sep 10 15:40:42.097 INFO checking lewton-0.5.2 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 15:40:42.097 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 15:40:42.097 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-4/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 15:40:42.274 INFO blam! a03b618666b80420df9760d9d35062ac4f6147f6c7a1d20a8a4a12b1929471c8
Sep 10 15:40:42.276 INFO running `"docker" "start" "-a" "a03b618666b80420df9760d9d35062ac4f6147f6c7a1d20a8a4a12b1929471c8"`
Sep 10 15:40:43.314 INFO kablam! usermod: no changes
Sep 10 15:40:43.531 INFO kablam!     Checking stable_deref_trait v1.1.1
Sep 10 15:40:43.550 INFO kablam!     Checking lewton v0.5.2 (file:///source)
Sep 10 15:40:43.550 INFO kablam!    Compiling rental-impl v0.4.15
Sep 10 15:40:45.357 INFO kablam! warning: variable does not need to be mutable
Sep 10 15:40:45.357 INFO kablam!   --> src/huffman_tree.rs:96:8
Sep 10 15:40:45.357 INFO kablam!    |
Sep 10 15:40:45.357 INFO kablam! 96 |             let mut left = self.l.as_mut().unwrap();
Sep 10 15:40:45.357 INFO kablam!    |                 ----^^^^
Sep 10 15:40:45.357 INFO kablam!    |                 |
Sep 10 15:40:45.357 INFO kablam!    |                 help: remove this `mut`
Sep 10 15:40:45.358 INFO kablam!    |
Sep 10 15:40:45.358 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 10 15:40:45.358 INFO kablam! 
Sep 10 15:40:45.399 INFO kablam! warning: variable does not need to be mutable
Sep 10 15:40:45.399 INFO kablam!    --> src/imdct.rs:379:7
Sep 10 15:40:45.399 INFO kablam!     |
Sep 10 15:40:45.399 INFO kablam! 379 |         let mut u = &mut *buffer;
Sep 10 15:40:45.399 INFO kablam!     |             ----^
Sep 10 15:40:45.399 INFO kablam!     |             |
Sep 10 15:40:45.399 INFO kablam!     |             help: remove this `mut`
Sep 10 15:40:45.399 INFO kablam! 
Sep 10 15:40:45.399 INFO kablam! warning: variable does not need to be mutable
Sep 10 15:40:45.399 INFO kablam!    --> src/imdct.rs:380:7
Sep 10 15:40:45.399 INFO kablam!     |
Sep 10 15:40:45.399 INFO kablam! 380 |         let mut v = &mut *buf2;
Sep 10 15:40:45.399 INFO kablam!     |             ----^
Sep 10 15:40:45.399 INFO kablam!     |             |
Sep 10 15:40:45.399 INFO kablam!     |             help: remove this `mut`
Sep 10 15:40:45.399 INFO kablam! 
Sep 10 15:40:52.447 INFO kablam!     Checking rental v0.4.16
Sep 10 15:40:52.976 INFO kablam!     Checking al-sys v0.4.1
Sep 10 15:40:53.973 INFO kablam!     Checking alto v1.1.4
Sep 10 15:41:01.103 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 15:41:01.103 INFO kablam!   --> examples/player.rs:66:3
Sep 10 15:41:01.103 INFO kablam!    |
Sep 10 15:41:01.103 INFO kablam! 66 |         str_src.queue_buffer(buf);
Sep 10 15:41:01.103 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 15:41:01.103 INFO kablam!    |
Sep 10 15:41:01.103 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Sep 10 15:41:01.103 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 15:41:01.103 INFO kablam! 
Sep 10 15:41:02.373 INFO kablam! warning: variable does not need to be mutable
Sep 10 15:41:02.373 INFO kablam!   --> src/huffman_tree.rs:96:8
Sep 10 15:41:02.373 INFO kablam!    |
Sep 10 15:41:02.373 INFO kablam! 96 |             let mut left = self.l.as_mut().unwrap();
Sep 10 15:41:02.373 INFO kablam!    |                 ----^^^^
Sep 10 15:41:02.373 INFO kablam!    |                 |
Sep 10 15:41:02.373 INFO kablam!    |                 help: remove this `mut`
Sep 10 15:41:02.373 INFO kablam!    |
Sep 10 15:41:02.373 INFO kablam! note: lint level defined here
Sep 10 15:41:02.373 INFO kablam!   --> src/lib.rs:10:24
Sep 10 15:41:02.373 INFO kablam!    |
Sep 10 15:41:02.373 INFO kablam! 10 | #![cfg_attr(test, deny(warnings))]
Sep 10 15:41:02.374 INFO kablam!    |                        ^^^^^^^^
Sep 10 15:41:02.374 INFO kablam!    = note: #[warn(unused_mut)] implied by #[warn(warnings)]
Sep 10 15:41:02.374 INFO kablam! 
Sep 10 15:41:02.422 INFO kablam! warning: variable does not need to be mutable
Sep 10 15:41:02.422 INFO kablam!    --> src/imdct.rs:379:7
Sep 10 15:41:02.422 INFO kablam!     |
Sep 10 15:41:02.422 INFO kablam! 379 |         let mut u = &mut *buffer;
Sep 10 15:41:02.422 INFO kablam!     |             ----^
Sep 10 15:41:02.422 INFO kablam!     |             |
Sep 10 15:41:02.422 INFO kablam!     |             help: remove this `mut`
Sep 10 15:41:02.422 INFO kablam! 
Sep 10 15:41:02.422 INFO kablam! warning: variable does not need to be mutable
Sep 10 15:41:02.422 INFO kablam!    --> src/imdct.rs:380:7
Sep 10 15:41:02.422 INFO kablam!     |
Sep 10 15:41:02.422 INFO kablam! 380 |         let mut v = &mut *buf2;
Sep 10 15:41:02.422 INFO kablam!     |             ----^
Sep 10 15:41:02.422 INFO kablam!     |             |
Sep 10 15:41:02.422 INFO kablam!     |             help: remove this `mut`
Sep 10 15:41:02.422 INFO kablam! 
Sep 10 15:41:02.832 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 19.50s
Sep 10 15:41:02.841 INFO kablam! su: No module specific data is present
Sep 10 15:41:03.424 INFO running `"docker" "rm" "-f" "a03b618666b80420df9760d9d35062ac4f6147f6c7a1d20a8a4a12b1929471c8"`
Sep 10 15:41:03.519 INFO blam! a03b618666b80420df9760d9d35062ac4f6147f6c7a1d20a8a4a12b1929471c8