Jul 12 06:15:15.814 INFO checking jec-rccow-0.1.0 against master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9 for pr-52234
Jul 12 06:15:15.814 INFO running: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 12 06:15:15.814 INFO creating container for: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 12 06:15:15.814 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-52234/master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-3/master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9:/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 +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 12 06:15:16.050 INFO blam! b7216c2ec1bc6899865c0fdc69f90bc42587afeaa9a3a613f90f825af60b9e8e
Jul 12 06:15:16.053 INFO running `"docker" "start" "-a" "b7216c2ec1bc6899865c0fdc69f90bc42587afeaa9a3a613f90f825af60b9e8e"`
Jul 12 06:15:17.047 INFO kablam!     Checking jec-rccow v0.1.0 (file:///source)
Jul 12 06:15:18.186 INFO kablam! warning: variable does not need to be mutable
Jul 12 06:15:18.186 INFO kablam!   --> src/lib.rs:73:13
Jul 12 06:15:18.186 INFO kablam!    |
Jul 12 06:15:18.186 INFO kablam! 73 |         let mut a = RcCow::new(5i32);
Jul 12 06:15:18.186 INFO kablam!    |             ----^
Jul 12 06:15:18.186 INFO kablam!    |             |
Jul 12 06:15:18.186 INFO kablam!    |             help: remove this `mut`
Jul 12 06:15:18.186 INFO kablam!    |
Jul 12 06:15:18.186 INFO kablam!    = note: #[warn(unused_mut)] on by default
Jul 12 06:15:18.186 INFO kablam! 
Jul 12 06:15:18.186 INFO kablam! warning: variable does not need to be mutable
Jul 12 06:15:18.186 INFO kablam!   --> src/lib.rs:77:13
Jul 12 06:15:18.187 INFO kablam!    |
Jul 12 06:15:18.187 INFO kablam! 77 |         let mut c = b.clone();
Jul 12 06:15:18.187 INFO kablam!    |             ----^
Jul 12 06:15:18.187 INFO kablam!    |             |
Jul 12 06:15:18.187 INFO kablam!    |             help: remove this `mut`
Jul 12 06:15:18.187 INFO kablam! 
Jul 12 06:15:18.234 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
Jul 12 06:15:18.237 INFO kablam! su: No module specific data is present
Jul 12 06:15:18.872 INFO running `"docker" "rm" "-f" "b7216c2ec1bc6899865c0fdc69f90bc42587afeaa9a3a613f90f825af60b9e8e"`
Jul 12 06:15:19.046 INFO blam! b7216c2ec1bc6899865c0fdc69f90bc42587afeaa9a3a613f90f825af60b9e8e