Oct 13 11:01:42.625 INFO checking peepable-0.1.1 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 11:01:42.627 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-3/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/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 11:01:43.016 INFO blam! dca109d4638b6b77031bedd35054981b0620b62f1f31585dff73c12ab08ab72a
Oct 13 11:01:43.018 INFO running `"docker" "start" "-a" "dca109d4638b6b77031bedd35054981b0620b62f1f31585dff73c12ab08ab72a"`
Oct 13 11:01:44.096 INFO kablam! usermod: no changes
Oct 13 11:01:44.156 INFO kablam!     Checking peepable v0.1.1 (/source)
Oct 13 11:01:45.121 INFO kablam! warning: unnecessary parentheses around function argument
Oct 13 11:01:45.121 INFO kablam!    --> src/lib.rs:149:34
Oct 13 11:01:45.122 INFO kablam!     |
Oct 13 11:01:45.122 INFO kablam! 149 |         let iter = Peepable::new((0..4));
Oct 13 11:01:45.122 INFO kablam!     |                                  ^^^^^^ help: remove these parentheses
Oct 13 11:01:45.122 INFO kablam!     |
Oct 13 11:01:45.123 INFO kablam!     = note: #[warn(unused_parens)] on by default
Oct 13 11:01:45.123 INFO kablam! 
Oct 13 11:01:46.085 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
Oct 13 11:01:46.085 INFO kablam! su: No module specific data is present
Oct 13 11:01:46.516 INFO running `"docker" "rm" "-f" "dca109d4638b6b77031bedd35054981b0620b62f1f31585dff73c12ab08ab72a"`
Oct 13 11:01:46.696 INFO blam! dca109d4638b6b77031bedd35054981b0620b62f1f31585dff73c12ab08ab72a