Sep 06 05:02:13.181 INFO checking jec-rccow-0.1.0 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 05:02:13.181 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 05:02:13.181 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-4/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 05:02:13.382 INFO blam! b865f63199a55844d1554ef8fec6dcba1b424f8365b5851ecd931202b4754716
Sep 06 05:02:13.384 INFO running `"docker" "start" "-a" "b865f63199a55844d1554ef8fec6dcba1b424f8365b5851ecd931202b4754716"`
Sep 06 05:02:14.434 INFO kablam! usermod: no changes
Sep 06 05:02:14.494 INFO kablam!     Checking jec-rccow v0.1.0 (file:///source)
Sep 06 05:02:14.997 INFO kablam! warning: variable does not need to be mutable
Sep 06 05:02:14.997 INFO kablam!   --> src/lib.rs:73:13
Sep 06 05:02:14.997 INFO kablam!    |
Sep 06 05:02:14.997 INFO kablam! 73 |         let mut a = RcCow::new(5i32);
Sep 06 05:02:14.997 INFO kablam!    |             ----^
Sep 06 05:02:14.997 INFO kablam!    |             |
Sep 06 05:02:14.997 INFO kablam!    |             help: remove this `mut`
Sep 06 05:02:14.997 INFO kablam!    |
Sep 06 05:02:14.998 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 06 05:02:14.998 INFO kablam! 
Sep 06 05:02:14.998 INFO kablam! warning: variable does not need to be mutable
Sep 06 05:02:14.998 INFO kablam!   --> src/lib.rs:77:13
Sep 06 05:02:14.998 INFO kablam!    |
Sep 06 05:02:14.998 INFO kablam! 77 |         let mut c = b.clone();
Sep 06 05:02:14.998 INFO kablam!    |             ----^
Sep 06 05:02:14.998 INFO kablam!    |             |
Sep 06 05:02:14.998 INFO kablam!    |             help: remove this `mut`
Sep 06 05:02:14.999 INFO kablam! 
Sep 06 05:02:15.021 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Sep 06 05:02:15.023 INFO kablam! su: No module specific data is present
Sep 06 05:02:16.052 INFO running `"docker" "rm" "-f" "b865f63199a55844d1554ef8fec6dcba1b424f8365b5851ecd931202b4754716"`
Sep 06 05:02:16.164 INFO blam! b865f63199a55844d1554ef8fec6dcba1b424f8365b5851ecd931202b4754716