Sep 20 01:23:26.611 INFO checking jec-rccow-0.1.0 against try#135b4cd023a753409d01e43b0f23d22a899feeeb for pr-54352
Sep 20 01:23:26.611 INFO running: cargo +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets
Sep 20 01:23:26.611 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54352/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-5/try#135b4cd023a753409d01e43b0f23d22a899feeeb:/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 +135b4cd023a753409d01e43b0f23d22a899feeeb-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 01:23:26.870 INFO blam! 71107585fae4c291c3cab93966b8e25c889ebfa26e04ad50fc29aa69bf9a58de
Sep 20 01:23:26.872 INFO running `"docker" "start" "-a" "71107585fae4c291c3cab93966b8e25c889ebfa26e04ad50fc29aa69bf9a58de"`
Sep 20 01:23:27.875 INFO kablam! usermod: no changes
Sep 20 01:23:27.915 INFO kablam!     Checking jec-rccow v0.1.0 (/source)
Sep 20 01:23:28.625 INFO kablam! warning: variable does not need to be mutable
Sep 20 01:23:28.626 INFO kablam!   --> src/lib.rs:73:13
Sep 20 01:23:28.626 INFO kablam!    |
Sep 20 01:23:28.626 INFO kablam! 73 |         let mut a = RcCow::new(5i32);
Sep 20 01:23:28.627 INFO kablam!    |             ----^
Sep 20 01:23:28.627 INFO kablam!    |             |
Sep 20 01:23:28.627 INFO kablam!    |             help: remove this `mut`
Sep 20 01:23:28.628 INFO kablam!    |
Sep 20 01:23:28.628 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 20 01:23:28.628 INFO kablam! 
Sep 20 01:23:28.629 INFO kablam! warning: variable does not need to be mutable
Sep 20 01:23:28.629 INFO kablam!   --> src/lib.rs:77:13
Sep 20 01:23:28.629 INFO kablam!    |
Sep 20 01:23:28.630 INFO kablam! 77 |         let mut c = b.clone();
Sep 20 01:23:28.630 INFO kablam!    |             ----^
Sep 20 01:23:28.630 INFO kablam!    |             |
Sep 20 01:23:28.631 INFO kablam!    |             help: remove this `mut`
Sep 20 01:23:28.631 INFO kablam! 
Sep 20 01:23:28.675 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
Sep 20 01:23:28.677 INFO kablam! su: No module specific data is present
Sep 20 01:23:29.420 INFO running `"docker" "rm" "-f" "71107585fae4c291c3cab93966b8e25c889ebfa26e04ad50fc29aa69bf9a58de"`
Sep 20 01:23:29.558 INFO blam! 71107585fae4c291c3cab93966b8e25c889ebfa26e04ad50fc29aa69bf9a58de