Sep 10 16:13:20.834 INFO checking jec-rccow-0.1.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 16:13:20.834 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 16:13:20.834 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-7/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-7/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 16:13:21.099 INFO blam! 847f46bf99f4c1cb2f26d3d1fb44337a3d046dc0280bbc77cb2d6a481733e2a2
Sep 10 16:13:21.101 INFO running `"docker" "start" "-a" "847f46bf99f4c1cb2f26d3d1fb44337a3d046dc0280bbc77cb2d6a481733e2a2"`
Sep 10 16:13:22.286 INFO kablam! usermod: no changes
Sep 10 16:13:22.362 INFO kablam!     Checking jec-rccow v0.1.0 (file:///source)
Sep 10 16:13:23.153 INFO kablam! warning: variable does not need to be mutable
Sep 10 16:13:23.153 INFO kablam!   --> src/lib.rs:73:13
Sep 10 16:13:23.153 INFO kablam!    |
Sep 10 16:13:23.153 INFO kablam! 73 |         let mut a = RcCow::new(5i32);
Sep 10 16:13:23.153 INFO kablam!    |             ----^
Sep 10 16:13:23.153 INFO kablam!    |             |
Sep 10 16:13:23.153 INFO kablam!    |             help: remove this `mut`
Sep 10 16:13:23.153 INFO kablam!    |
Sep 10 16:13:23.153 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 10 16:13:23.153 INFO kablam! 
Sep 10 16:13:23.153 INFO kablam! warning: variable does not need to be mutable
Sep 10 16:13:23.153 INFO kablam!   --> src/lib.rs:77:13
Sep 10 16:13:23.153 INFO kablam!    |
Sep 10 16:13:23.153 INFO kablam! 77 |         let mut c = b.clone();
Sep 10 16:13:23.153 INFO kablam!    |             ----^
Sep 10 16:13:23.153 INFO kablam!    |             |
Sep 10 16:13:23.154 INFO kablam!    |             help: remove this `mut`
Sep 10 16:13:23.154 INFO kablam! 
Sep 10 16:13:23.185 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
Sep 10 16:13:23.187 INFO kablam! su: No module specific data is present
Sep 10 16:13:24.463 INFO running `"docker" "rm" "-f" "847f46bf99f4c1cb2f26d3d1fb44337a3d046dc0280bbc77cb2d6a481733e2a2"`
Sep 10 16:13:24.577 INFO blam! 847f46bf99f4c1cb2f26d3d1fb44337a3d046dc0280bbc77cb2d6a481733e2a2