Aug 30 13:11:03.347 INFO checking jec-rccow-0.1.0 against master#545f22340f72ee0efaf6463efb43a2840e3d35db for pr-53699
Aug 30 13:11:03.347 INFO running: cargo +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets
Aug 30 13:11:03.347 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53699/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-0/master#545f22340f72ee0efaf6463efb43a2840e3d35db:/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 +545f22340f72ee0efaf6463efb43a2840e3d35db-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 13:11:03.498 INFO blam! 913deb32aef3ea11529d42ba8d19cba739f423df0311e5598b7733f3de103cc8
Aug 30 13:11:03.500 INFO running `"docker" "start" "-a" "913deb32aef3ea11529d42ba8d19cba739f423df0311e5598b7733f3de103cc8"`
Aug 30 13:11:04.274 INFO kablam!     Checking jec-rccow v0.1.0 (file:///source)
Aug 30 13:11:04.869 INFO kablam! warning: variable does not need to be mutable
Aug 30 13:11:04.869 INFO kablam!   --> src/lib.rs:73:13
Aug 30 13:11:04.869 INFO kablam!    |
Aug 30 13:11:04.869 INFO kablam! 73 |         let mut a = RcCow::new(5i32);
Aug 30 13:11:04.869 INFO kablam!    |             ----^
Aug 30 13:11:04.869 INFO kablam!    |             |
Aug 30 13:11:04.869 INFO kablam!    |             help: remove this `mut`
Aug 30 13:11:04.869 INFO kablam!    |
Aug 30 13:11:04.869 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 30 13:11:04.869 INFO kablam! 
Aug 30 13:11:04.869 INFO kablam! warning: variable does not need to be mutable
Aug 30 13:11:04.869 INFO kablam!   --> src/lib.rs:77:13
Aug 30 13:11:04.869 INFO kablam!    |
Aug 30 13:11:04.870 INFO kablam! 77 |         let mut c = b.clone();
Aug 30 13:11:04.870 INFO kablam!    |             ----^
Aug 30 13:11:04.870 INFO kablam!    |             |
Aug 30 13:11:04.870 INFO kablam!    |             help: remove this `mut`
Aug 30 13:11:04.870 INFO kablam! 
Aug 30 13:11:04.882 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.62s
Aug 30 13:11:04.886 INFO kablam! su: No module specific data is present
Aug 30 13:11:05.297 INFO running `"docker" "rm" "-f" "913deb32aef3ea11529d42ba8d19cba739f423df0311e5598b7733f3de103cc8"`
Aug 30 13:11:05.405 INFO blam! 913deb32aef3ea11529d42ba8d19cba739f423df0311e5598b7733f3de103cc8