Aug 11 10:42:57.667 INFO checking jec-rccow-0.1.0 against try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+tmplazy for libc-1
Aug 11 10:42:57.667 INFO running: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 10:42:57.667 INFO creating container for: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 10:42:57.667 INFO running `"docker" "create" "-v" "/tmp/crater.4e78qyvjRJYy:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-6/try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+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 +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 10:42:58.056 INFO blam! 77c850c8fe5e341f8173d83bd30c6e00b4a7b0a2cc43548e781f3bdbf86c043c
Aug 11 10:42:58.058 INFO running `"docker" "start" "-a" "77c850c8fe5e341f8173d83bd30c6e00b4a7b0a2cc43548e781f3bdbf86c043c"`
Aug 11 10:42:59.418 INFO kablam!     Checking jec-rccow v0.1.0 (file:///source)
Aug 11 10:43:00.004 INFO kablam! warning: variable does not need to be mutable
Aug 11 10:43:00.004 INFO kablam!   --> src/lib.rs:73:13
Aug 11 10:43:00.004 INFO kablam!    |
Aug 11 10:43:00.004 INFO kablam! 73 |         let mut a = RcCow::new(5i32);
Aug 11 10:43:00.004 INFO kablam!    |             ----^
Aug 11 10:43:00.004 INFO kablam!    |             |
Aug 11 10:43:00.004 INFO kablam!    |             help: remove this `mut`
Aug 11 10:43:00.004 INFO kablam!    |
Aug 11 10:43:00.004 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 11 10:43:00.004 INFO kablam! 
Aug 11 10:43:00.004 INFO kablam! warning: variable does not need to be mutable
Aug 11 10:43:00.004 INFO kablam!   --> src/lib.rs:77:13
Aug 11 10:43:00.004 INFO kablam!    |
Aug 11 10:43:00.004 INFO kablam! 77 |         let mut c = b.clone();
Aug 11 10:43:00.004 INFO kablam!    |             ----^
Aug 11 10:43:00.004 INFO kablam!    |             |
Aug 11 10:43:00.004 INFO kablam!    |             help: remove this `mut`
Aug 11 10:43:00.005 INFO kablam! 
Aug 11 10:43:00.185 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Aug 11 10:43:00.187 INFO kablam! su: No module specific data is present
Aug 11 10:43:01.072 INFO running `"docker" "rm" "-f" "77c850c8fe5e341f8173d83bd30c6e00b4a7b0a2cc43548e781f3bdbf86c043c"`
Aug 11 10:43:01.209 INFO blam! 77c850c8fe5e341f8173d83bd30c6e00b4a7b0a2cc43548e781f3bdbf86c043c