Sep 04 13:20:02.345 INFO checking jec-rccow-0.1.0 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 04 13:20:02.345 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 04 13:20:02.345 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-3/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/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 +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 13:20:02.513 INFO blam! 74ab56fd158fbeb1d6279e5778534fbcd1a3a52a37fd3ff38f9484dc3a40eb3d
Sep 04 13:20:02.515 INFO running `"docker" "start" "-a" "74ab56fd158fbeb1d6279e5778534fbcd1a3a52a37fd3ff38f9484dc3a40eb3d"`
Sep 04 13:20:03.192 INFO kablam!     Checking jec-rccow v0.1.0 (file:///source)
Sep 04 13:20:03.983 INFO kablam! warning: variable does not need to be mutable
Sep 04 13:20:03.983 INFO kablam!   --> src/lib.rs:73:13
Sep 04 13:20:03.983 INFO kablam!    |
Sep 04 13:20:03.983 INFO kablam! 73 |         let mut a = RcCow::new(5i32);
Sep 04 13:20:03.983 INFO kablam!    |             ----^
Sep 04 13:20:03.983 INFO kablam!    |             |
Sep 04 13:20:03.983 INFO kablam!    |             help: remove this `mut`
Sep 04 13:20:03.983 INFO kablam!    |
Sep 04 13:20:03.983 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 04 13:20:03.983 INFO kablam! 
Sep 04 13:20:03.983 INFO kablam! warning: variable does not need to be mutable
Sep 04 13:20:03.983 INFO kablam!   --> src/lib.rs:77:13
Sep 04 13:20:03.983 INFO kablam!    |
Sep 04 13:20:03.983 INFO kablam! 77 |         let mut c = b.clone();
Sep 04 13:20:03.983 INFO kablam!    |             ----^
Sep 04 13:20:03.984 INFO kablam!    |             |
Sep 04 13:20:03.984 INFO kablam!    |             help: remove this `mut`
Sep 04 13:20:03.984 INFO kablam! 
Sep 04 13:20:03.997 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Sep 04 13:20:04.001 INFO kablam! su: No module specific data is present
Sep 04 13:20:04.365 INFO running `"docker" "rm" "-f" "74ab56fd158fbeb1d6279e5778534fbcd1a3a52a37fd3ff38f9484dc3a40eb3d"`
Sep 04 13:20:04.472 INFO blam! 74ab56fd158fbeb1d6279e5778534fbcd1a3a52a37fd3ff38f9484dc3a40eb3d