Sep 06 05:02:10.279 INFO checking jec-rccow-0.1.0 against try#51ff957df5095d92d1d3d4682207ee8b7ad408a8 for pr-53854
Sep 06 05:02:10.279 INFO running: cargo +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets
Sep 06 05:02:10.279 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53854/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-5/try#51ff957df5095d92d1d3d4682207ee8b7ad408a8:/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 +51ff957df5095d92d1d3d4682207ee8b7ad408a8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 05:02:10.467 INFO blam! 3d6debdcf0f1b60de3896f94ab7be933785a8f47eeb3ae1bc11f6dc67cec29bd
Sep 06 05:02:10.469 INFO running `"docker" "start" "-a" "3d6debdcf0f1b60de3896f94ab7be933785a8f47eeb3ae1bc11f6dc67cec29bd"`
Sep 06 05:02:11.924 INFO kablam! usermod: no changes
Sep 06 05:02:11.982 INFO kablam!     Checking jec-rccow v0.1.0 (file:///source)
Sep 06 05:02:12.489 INFO kablam! warning: variable does not need to be mutable
Sep 06 05:02:12.489 INFO kablam!   --> src/lib.rs:73:13
Sep 06 05:02:12.489 INFO kablam!    |
Sep 06 05:02:12.489 INFO kablam! 73 |         let mut a = RcCow::new(5i32);
Sep 06 05:02:12.489 INFO kablam!    |             ----^
Sep 06 05:02:12.489 INFO kablam!    |             |
Sep 06 05:02:12.489 INFO kablam!    |             help: remove this `mut`
Sep 06 05:02:12.489 INFO kablam!    |
Sep 06 05:02:12.489 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 06 05:02:12.489 INFO kablam! 
Sep 06 05:02:12.490 INFO kablam! warning: variable does not need to be mutable
Sep 06 05:02:12.490 INFO kablam!   --> src/lib.rs:77:13
Sep 06 05:02:12.490 INFO kablam!    |
Sep 06 05:02:12.490 INFO kablam! 77 |         let mut c = b.clone();
Sep 06 05:02:12.490 INFO kablam!    |             ----^
Sep 06 05:02:12.490 INFO kablam!    |             |
Sep 06 05:02:12.490 INFO kablam!    |             help: remove this `mut`
Sep 06 05:02:12.490 INFO kablam! 
Sep 06 05:02:12.622 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
Sep 06 05:02:12.624 INFO kablam! su: No module specific data is present
Sep 06 05:02:13.553 INFO running `"docker" "rm" "-f" "3d6debdcf0f1b60de3896f94ab7be933785a8f47eeb3ae1bc11f6dc67cec29bd"`
Sep 06 05:02:13.657 INFO blam! 3d6debdcf0f1b60de3896f94ab7be933785a8f47eeb3ae1bc11f6dc67cec29bd