Sep 21 10:26:17.326 INFO checking file_diff-1.0.0 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 10:26:17.326 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 10:26:17.327 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-7/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 10:26:17.476 INFO blam! c284364214fffdee15f25d3caa20b7c8a4ccf4a87bff999d911b3d92206722ef
Sep 21 10:26:17.478 INFO running `"docker" "start" "-a" "c284364214fffdee15f25d3caa20b7c8a4ccf4a87bff999d911b3d92206722ef"`
Sep 21 10:26:18.874 INFO kablam! usermod: no changes
Sep 21 10:26:18.895 INFO kablam!     Checking file_diff v1.0.0 (/source)
Sep 21 10:26:19.164 INFO kablam! warning: variable does not need to be mutable
Sep 21 10:26:19.164 INFO kablam!   --> src/lib.rs:49:9
Sep 21 10:26:19.164 INFO kablam!    |
Sep 21 10:26:19.164 INFO kablam! 49 |     let mut buff1 : &mut [u8] = &mut [0; 1024];
Sep 21 10:26:19.164 INFO kablam!    |         ----^^^^^
Sep 21 10:26:19.164 INFO kablam!    |         |
Sep 21 10:26:19.164 INFO kablam!    |         help: remove this `mut`
Sep 21 10:26:19.164 INFO kablam!    |
Sep 21 10:26:19.164 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 21 10:26:19.164 INFO kablam! 
Sep 21 10:26:19.164 INFO kablam! warning: variable does not need to be mutable
Sep 21 10:26:19.164 INFO kablam!   --> src/lib.rs:50:9
Sep 21 10:26:19.164 INFO kablam!    |
Sep 21 10:26:19.164 INFO kablam! 50 |     let mut buff2 : &mut [u8] = &mut [0; 1024];
Sep 21 10:26:19.164 INFO kablam!    |         ----^^^^^
Sep 21 10:26:19.164 INFO kablam!    |         |
Sep 21 10:26:19.164 INFO kablam!    |         help: remove this `mut`
Sep 21 10:26:19.164 INFO kablam! 
Sep 21 10:26:19.170 INFO kablam! warning: variable does not need to be mutable
Sep 21 10:26:19.170 INFO kablam!   --> src/lib.rs:49:9
Sep 21 10:26:19.170 INFO kablam!    |
Sep 21 10:26:19.170 INFO kablam! 49 |     let mut buff1 : &mut [u8] = &mut [0; 1024];
Sep 21 10:26:19.170 INFO kablam!    |         ----^^^^^
Sep 21 10:26:19.170 INFO kablam!    |         |
Sep 21 10:26:19.170 INFO kablam!    |         help: remove this `mut`
Sep 21 10:26:19.170 INFO kablam!    |
Sep 21 10:26:19.170 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 21 10:26:19.170 INFO kablam! 
Sep 21 10:26:19.170 INFO kablam! warning: variable does not need to be mutable
Sep 21 10:26:19.170 INFO kablam!   --> src/lib.rs:50:9
Sep 21 10:26:19.170 INFO kablam!    |
Sep 21 10:26:19.170 INFO kablam! 50 |     let mut buff2 : &mut [u8] = &mut [0; 1024];
Sep 21 10:26:19.170 INFO kablam!    |         ----^^^^^
Sep 21 10:26:19.170 INFO kablam!    |         |
Sep 21 10:26:19.170 INFO kablam!    |         help: remove this `mut`
Sep 21 10:26:19.170 INFO kablam! 
Sep 21 10:26:19.195 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
Sep 21 10:26:19.196 INFO kablam! su: No module specific data is present
Sep 21 10:26:20.169 INFO running `"docker" "rm" "-f" "c284364214fffdee15f25d3caa20b7c8a4ccf4a87bff999d911b3d92206722ef"`
Sep 21 10:26:20.283 INFO blam! c284364214fffdee15f25d3caa20b7c8a4ccf4a87bff999d911b3d92206722ef