Oct 12 15:41:23.801 INFO checking pietrocarbo/rust_first_steps against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 15:41:23.803 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/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 15:41:24.299 INFO blam! bc0b57f1e56d422e637458211eef225b437b18b9f58bf6ac906698839018c438
Oct 12 15:41:24.306 INFO running `"docker" "start" "-a" "bc0b57f1e56d422e637458211eef225b437b18b9f58bf6ac906698839018c438"`
Oct 12 15:41:25.914 INFO kablam! usermod: no changes
Oct 12 15:41:26.016 INFO kablam!     Checking presentation v0.1.0 (/source)
Oct 12 15:41:27.505 INFO kablam! warning: function is never used: `file_parse_verbose`
Oct 12 15:41:27.506 INFO kablam!   --> src/bin/3_error_IO.rs:12:1
Oct 12 15:41:27.506 INFO kablam!    |
Oct 12 15:41:27.506 INFO kablam! 12 | fn file_parse_verbose<P: AsRef<Path>>(file_path: P) -> Result<i32, CustomError> {
Oct 12 15:41:27.506 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:41:27.509 INFO kablam!    |
Oct 12 15:41:27.509 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 15:41:27.510 INFO kablam! 
Oct 12 15:41:27.510 INFO kablam! warning: crate `3_error_IO` should have a snake case name such as `3_error_io`
Oct 12 15:41:27.511 INFO kablam!   |
Oct 12 15:41:27.511 INFO kablam!   = note: #[warn(non_snake_case)] on by default
Oct 12 15:41:27.511 INFO kablam! 
Oct 12 15:41:27.780 INFO kablam! warning: function is never used: `file_parse_verbose`
Oct 12 15:41:27.781 INFO kablam!   --> src/bin/3_error_IO.rs:12:1
Oct 12 15:41:27.782 INFO kablam!    |
Oct 12 15:41:27.783 INFO kablam! 12 | fn file_parse_verbose<P: AsRef<Path>>(file_path: P) -> Result<i32, CustomError> {
Oct 12 15:41:27.783 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 15:41:27.808 INFO kablam!    |
Oct 12 15:41:27.809 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 12 15:41:27.810 INFO kablam! 
Oct 12 15:41:27.811 INFO kablam! warning: crate `3_error_IO` should have a snake case name such as `3_error_io`
Oct 12 15:41:27.820 INFO kablam!   |
Oct 12 15:41:27.821 INFO kablam!   = note: #[warn(non_snake_case)] on by default
Oct 12 15:41:27.822 INFO kablam! 
Oct 12 15:41:28.440 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.50s
Oct 12 15:41:28.443 INFO kablam! su: No module specific data is present
Oct 12 15:41:29.646 INFO running `"docker" "rm" "-f" "bc0b57f1e56d422e637458211eef225b437b18b9f58bf6ac906698839018c438"`
Oct 12 15:41:29.888 INFO blam! bc0b57f1e56d422e637458211eef225b437b18b9f58bf6ac906698839018c438