Oct 13 16:12:15.936 INFO checking densevec-0.3.1 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 16:12:15.936 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-1/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-1/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 16:12:16.223 INFO blam! 74eeaa15bd96dfb75920edf39c3c54f6f679f0a985597e598d1905318097c37c
Oct 13 16:12:16.224 INFO running `"docker" "start" "-a" "74eeaa15bd96dfb75920edf39c3c54f6f679f0a985597e598d1905318097c37c"`
Oct 13 16:12:17.364 INFO kablam! usermod: no changes
Oct 13 16:12:17.444 INFO kablam!     Checking densevec v0.3.1 (/source)
Oct 13 16:12:18.877 INFO kablam! warning: unused variable: `i`
Oct 13 16:12:18.877 INFO kablam!     --> src/lib.rs:1290:19
Oct 13 16:12:18.877 INFO kablam!      |
Oct 13 16:12:18.877 INFO kablam! 1290 |             .map(|i| a.insert_key_gen(0))
Oct 13 16:12:18.878 INFO kablam!      |                   ^ help: consider using `_i` instead
Oct 13 16:12:18.878 INFO kablam!      |
Oct 13 16:12:18.878 INFO kablam!      = note: #[warn(unused_variables)] on by default
Oct 13 16:12:18.878 INFO kablam! 
Oct 13 16:12:19.128 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.74s
Oct 13 16:12:19.136 INFO kablam! su: No module specific data is present
Oct 13 16:12:19.450 INFO running `"docker" "rm" "-f" "74eeaa15bd96dfb75920edf39c3c54f6f679f0a985597e598d1905318097c37c"`
Oct 13 16:12:19.626 INFO blam! 74eeaa15bd96dfb75920edf39c3c54f6f679f0a985597e598d1905318097c37c