Sep 14 14:25:13.941 INFO checking jec-rccow-0.1.0 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 14:25:13.941 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 14:25:13.941 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-6/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/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 +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 14:25:14.363 INFO blam! fa1e78b07113cfa0b81caf132aa72240af40361752d8978ab2a0a39c487c42e4
Sep 14 14:25:14.365 INFO running `"docker" "start" "-a" "fa1e78b07113cfa0b81caf132aa72240af40361752d8978ab2a0a39c487c42e4"`
Sep 14 14:25:16.059 INFO kablam! usermod: no changes
Sep 14 14:25:16.104 INFO kablam!     Checking jec-rccow v0.1.0 (file:///source)
Sep 14 14:25:16.830 INFO kablam! warning: variable does not need to be mutable
Sep 14 14:25:16.830 INFO kablam!   --> src/lib.rs:73:13
Sep 14 14:25:16.830 INFO kablam!    |
Sep 14 14:25:16.830 INFO kablam! 73 |         let mut a = RcCow::new(5i32);
Sep 14 14:25:16.830 INFO kablam!    |             ----^
Sep 14 14:25:16.830 INFO kablam!    |             |
Sep 14 14:25:16.830 INFO kablam!    |             help: remove this `mut`
Sep 14 14:25:16.830 INFO kablam!    |
Sep 14 14:25:16.830 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 14 14:25:16.830 INFO kablam! 
Sep 14 14:25:16.830 INFO kablam! warning: variable does not need to be mutable
Sep 14 14:25:16.830 INFO kablam!   --> src/lib.rs:77:13
Sep 14 14:25:16.830 INFO kablam!    |
Sep 14 14:25:16.830 INFO kablam! 77 |         let mut c = b.clone();
Sep 14 14:25:16.830 INFO kablam!    |             ----^
Sep 14 14:25:16.830 INFO kablam!    |             |
Sep 14 14:25:16.830 INFO kablam!    |             help: remove this `mut`
Sep 14 14:25:16.830 INFO kablam! 
Sep 14 14:25:16.859 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
Sep 14 14:25:16.862 INFO kablam! su: No module specific data is present
Sep 14 14:25:18.191 INFO running `"docker" "rm" "-f" "fa1e78b07113cfa0b81caf132aa72240af40361752d8978ab2a0a39c487c42e4"`
Sep 14 14:25:18.435 INFO blam! fa1e78b07113cfa0b81caf132aa72240af40361752d8978ab2a0a39c487c42e4