Aug 02 06:21:16.436 INFO checking jec-rccow-0.1.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 06:21:16.436 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:21:16.436 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 06:21:16.436 INFO running `"docker" "create" "-v" "/tmp/crater.HzFW1eVvcfPO:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-4/1.27.2+tmplazy:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 06:21:16.671 INFO blam! 46474f63d1632589ce71c3bd625ff113b8a7cb7af579f729b0484e9db3d702a1
Aug 02 06:21:16.675 INFO running `"docker" "start" "-a" "46474f63d1632589ce71c3bd625ff113b8a7cb7af579f729b0484e9db3d702a1"`
Aug 02 06:21:17.626 INFO kablam!     Checking jec-rccow v0.1.0 (file:///source)
Aug 02 06:21:18.701 INFO kablam! warning: variable does not need to be mutable
Aug 02 06:21:18.702 INFO kablam!   --> src/lib.rs:73:13
Aug 02 06:21:18.702 INFO kablam!    |
Aug 02 06:21:18.702 INFO kablam! 73 |         let mut a = RcCow::new(5i32);
Aug 02 06:21:18.702 INFO kablam!    |             ----^
Aug 02 06:21:18.702 INFO kablam!    |             |
Aug 02 06:21:18.702 INFO kablam!    |             help: remove this `mut`
Aug 02 06:21:18.702 INFO kablam!    |
Aug 02 06:21:18.702 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 02 06:21:18.702 INFO kablam! 
Aug 02 06:21:18.702 INFO kablam! warning: variable does not need to be mutable
Aug 02 06:21:18.702 INFO kablam!   --> src/lib.rs:77:13
Aug 02 06:21:18.702 INFO kablam!    |
Aug 02 06:21:18.702 INFO kablam! 77 |         let mut c = b.clone();
Aug 02 06:21:18.702 INFO kablam!    |             ----^
Aug 02 06:21:18.702 INFO kablam!    |             |
Aug 02 06:21:18.702 INFO kablam!    |             help: remove this `mut`
Aug 02 06:21:18.702 INFO kablam! 
Aug 02 06:21:18.732 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
Aug 02 06:21:18.735 INFO kablam! su: No module specific data is present
Aug 02 06:21:19.750 INFO running `"docker" "rm" "-f" "46474f63d1632589ce71c3bd625ff113b8a7cb7af579f729b0484e9db3d702a1"`
Aug 02 06:21:19.918 INFO blam! 46474f63d1632589ce71c3bd625ff113b8a7cb7af579f729b0484e9db3d702a1