Aug 30 13:37:47.059 INFO checking jec-rccow-0.1.0 against try#2d477f9981361618ac78253c28051a66b6cea125 for pr-53707
Aug 30 13:37:47.059 INFO running: cargo +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets
Aug 30 13:37:47.059 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53707/try#2d477f9981361618ac78253c28051a66b6cea125:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-3/try#2d477f9981361618ac78253c28051a66b6cea125:/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 +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 13:37:47.302 INFO blam! a7311356edd1a4cb51f8685add12e50b9574b9d9a944f4ac65156b06c4f09c0b
Aug 30 13:37:47.303 INFO running `"docker" "start" "-a" "a7311356edd1a4cb51f8685add12e50b9574b9d9a944f4ac65156b06c4f09c0b"`
Aug 30 13:37:47.999 INFO kablam!     Checking jec-rccow v0.1.0 (file:///source)
Aug 30 13:37:48.555 INFO kablam! warning: variable does not need to be mutable
Aug 30 13:37:48.555 INFO kablam!   --> src/lib.rs:73:13
Aug 30 13:37:48.555 INFO kablam!    |
Aug 30 13:37:48.555 INFO kablam! 73 |         let mut a = RcCow::new(5i32);
Aug 30 13:37:48.555 INFO kablam!    |             ----^
Aug 30 13:37:48.555 INFO kablam!    |             |
Aug 30 13:37:48.555 INFO kablam!    |             help: remove this `mut`
Aug 30 13:37:48.555 INFO kablam!    |
Aug 30 13:37:48.555 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 30 13:37:48.555 INFO kablam! 
Aug 30 13:37:48.555 INFO kablam! warning: variable does not need to be mutable
Aug 30 13:37:48.555 INFO kablam!   --> src/lib.rs:77:13
Aug 30 13:37:48.555 INFO kablam!    |
Aug 30 13:37:48.555 INFO kablam! 77 |         let mut c = b.clone();
Aug 30 13:37:48.556 INFO kablam!    |             ----^
Aug 30 13:37:48.556 INFO kablam!    |             |
Aug 30 13:37:48.556 INFO kablam!    |             help: remove this `mut`
Aug 30 13:37:48.556 INFO kablam! 
Aug 30 13:37:48.567 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
Aug 30 13:37:48.570 INFO kablam! su: No module specific data is present
Aug 30 13:37:49.147 INFO running `"docker" "rm" "-f" "a7311356edd1a4cb51f8685add12e50b9574b9d9a944f4ac65156b06c4f09c0b"`
Aug 30 13:37:49.259 INFO blam! a7311356edd1a4cb51f8685add12e50b9574b9d9a944f4ac65156b06c4f09c0b