Oct 12 20:11:04.790 INFO checking jac32/snake against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 20:11:04.790 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 12 20:11:04.983 INFO blam! 1153b51dd235b79806a11a35e932714f6bba3290dd7ffcfffd252509466a4549
Oct 12 20:11:04.985 INFO running `"docker" "start" "-a" "1153b51dd235b79806a11a35e932714f6bba3290dd7ffcfffd252509466a4549"`
Oct 12 20:11:05.544 INFO kablam! usermod: no changes
Oct 12 20:11:05.580 INFO kablam!     Checking termion v1.1.3
Oct 12 20:11:06.356 INFO kablam!     Checking snake v0.2.0 (/source)
Oct 12 20:11:06.852 INFO kablam! warning: unused import: `termion::input::TermRead`
Oct 12 20:11:06.852 INFO kablam!  --> src/main.rs:5:5
Oct 12 20:11:06.852 INFO kablam!   |
Oct 12 20:11:06.852 INFO kablam! 5 | use termion::input::TermRead;
Oct 12 20:11:06.852 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 20:11:06.852 INFO kablam!   |
Oct 12 20:11:06.852 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 20:11:06.852 INFO kablam! 
Oct 12 20:11:06.884 INFO kablam! warning: unused import: `termion::input::TermRead`
Oct 12 20:11:06.884 INFO kablam!  --> src/main.rs:5:5
Oct 12 20:11:06.884 INFO kablam!   |
Oct 12 20:11:06.884 INFO kablam! 5 | use termion::input::TermRead;
Oct 12 20:11:06.884 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 20:11:06.884 INFO kablam!   |
Oct 12 20:11:06.884 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 20:11:06.884 INFO kablam! 
Oct 12 20:11:06.972 INFO kablam! warning: unused import: `std::io::Read`
Oct 12 20:11:06.973 INFO kablam!   --> src/main.rs:15:5
Oct 12 20:11:06.973 INFO kablam!    |
Oct 12 20:11:06.973 INFO kablam! 15 | use std::io::Read;
Oct 12 20:11:06.974 INFO kablam!    |     ^^^^^^^^^^^^^
Oct 12 20:11:06.974 INFO kablam! 
Oct 12 20:11:07.009 INFO kablam! warning: unused import: `std::io::Read`
Oct 12 20:11:07.009 INFO kablam!   --> src/main.rs:15:5
Oct 12 20:11:07.010 INFO kablam!    |
Oct 12 20:11:07.010 INFO kablam! 15 | use std::io::Read;
Oct 12 20:11:07.010 INFO kablam!    |     ^^^^^^^^^^^^^
Oct 12 20:11:07.010 INFO kablam! 
Oct 12 20:11:07.012 INFO kablam! warning: field is never used: `output_writer`
Oct 12 20:11:07.013 INFO kablam!   --> src/main.rs:92:5
Oct 12 20:11:07.013 INFO kablam!    |
Oct 12 20:11:07.013 INFO kablam! 92 |     output_writer: W,
Oct 12 20:11:07.013 INFO kablam!    |     ^^^^^^^^^^^^^^^^
Oct 12 20:11:07.014 INFO kablam!    |
Oct 12 20:11:07.017 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 20:11:07.017 INFO kablam! 
Oct 12 20:11:07.053 INFO kablam! warning: field is never used: `output_writer`
Oct 12 20:11:07.053 INFO kablam!   --> src/main.rs:92:5
Oct 12 20:11:07.054 INFO kablam!    |
Oct 12 20:11:07.054 INFO kablam! 92 |     output_writer: W,
Oct 12 20:11:07.055 INFO kablam!    |     ^^^^^^^^^^^^^^^^
Oct 12 20:11:07.055 INFO kablam!    |
Oct 12 20:11:07.055 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 20:11:07.055 INFO kablam! 
Oct 12 20:11:07.079 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.51s
Oct 12 20:11:07.087 INFO kablam! su: No module specific data is present
Oct 12 20:11:07.845 INFO running `"docker" "rm" "-f" "1153b51dd235b79806a11a35e932714f6bba3290dd7ffcfffd252509466a4549"`
Oct 12 20:11:08.180 INFO blam! 1153b51dd235b79806a11a35e932714f6bba3290dd7ffcfffd252509466a4549