Oct 13 17:55:28.022 INFO checking attr-0.1.0 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 17:55:28.023 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-2/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +4021bd0b3c5815b087d6db10ce461e7e4854ade7-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 13 17:55:28.372 INFO blam! 189d464073daf1fdc616880bedd96297cdd5511dceb058646f1b6ea273e9ab50
Oct 13 17:55:28.374 INFO running `"docker" "start" "-a" "189d464073daf1fdc616880bedd96297cdd5511dceb058646f1b6ea273e9ab50"`
Oct 13 17:55:28.920 INFO kablam! usermod: no changes
Oct 13 17:55:28.942 INFO kablam! warning: only one of `license` or `license-file` is necessary
Oct 13 17:55:28.957 INFO kablam!     Checking attr v0.1.0 (/source)
Oct 13 17:55:30.432 INFO kablam! warning: variable does not need to be mutable
Oct 13 17:55:30.432 INFO kablam!    --> tests/simple.rs:108:9
Oct 13 17:55:30.432 INFO kablam!     |
Oct 13 17:55:30.432 INFO kablam! 108 |     let mut batz = Bar::attrs().batz.get(&mut f);
Oct 13 17:55:30.432 INFO kablam!     |         ----^^^^
Oct 13 17:55:30.432 INFO kablam!     |         |
Oct 13 17:55:30.432 INFO kablam!     |         help: remove this `mut`
Oct 13 17:55:30.432 INFO kablam!     |
Oct 13 17:55:30.432 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 17:55:30.432 INFO kablam! 
Oct 13 17:55:30.664 INFO kablam! warning: variable does not need to be mutable
Oct 13 17:55:30.664 INFO kablam!    --> tests/nested.rs:252:13
Oct 13 17:55:30.664 INFO kablam!     |
Oct 13 17:55:30.664 INFO kablam! 252 |         let mut x: &mut i32 = foo::Numbers.at(&mut f, 1);
Oct 13 17:55:30.664 INFO kablam!     |             ----^
Oct 13 17:55:30.664 INFO kablam!     |             |
Oct 13 17:55:30.664 INFO kablam!     |             help: remove this `mut`
Oct 13 17:55:30.664 INFO kablam!     |
Oct 13 17:55:30.664 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 17:55:30.664 INFO kablam! 
Oct 13 17:55:30.964 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.02s
Oct 13 17:55:30.985 INFO kablam! su: No module specific data is present
Oct 13 17:55:31.725 INFO running `"docker" "rm" "-f" "189d464073daf1fdc616880bedd96297cdd5511dceb058646f1b6ea273e9ab50"`
Oct 13 17:55:31.992 INFO blam! 189d464073daf1fdc616880bedd96297cdd5511dceb058646f1b6ea273e9ab50