Oct 13 06:40:59.614 INFO checking variable_size_byte_writer-0.1.5 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 06:40:59.614 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/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 06:40:59.832 INFO blam! dc63210f7a833fefa4911cf255de79e86abf311367fe6b5c319f70ea3210910f
Oct 13 06:40:59.837 INFO running `"docker" "start" "-a" "dc63210f7a833fefa4911cf255de79e86abf311367fe6b5c319f70ea3210910f"`
Oct 13 06:41:00.388 INFO kablam! usermod: no changes
Oct 13 06:41:00.419 INFO kablam!     Checking typenum_loops v0.2.0
Oct 13 06:41:00.962 INFO kablam!     Checking variable_size_byte_writer v0.1.5 (/source)
Oct 13 06:41:02.781 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:41:02.781 INFO kablam!   --> benches/benches.rs:11:9
Oct 13 06:41:02.781 INFO kablam!    |
Oct 13 06:41:02.782 INFO kablam! 11 |     let mut target = std::io::Cursor::new(vec![]);
Oct 13 06:41:02.782 INFO kablam!    |         ----^^^^^^
Oct 13 06:41:02.782 INFO kablam!    |         |
Oct 13 06:41:02.783 INFO kablam!    |         help: remove this `mut`
Oct 13 06:41:02.783 INFO kablam!    |
Oct 13 06:41:02.783 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 06:41:02.783 INFO kablam! 
Oct 13 06:41:02.784 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:41:02.784 INFO kablam!   --> benches/benches.rs:32:9
Oct 13 06:41:02.784 INFO kablam!    |
Oct 13 06:41:02.784 INFO kablam! 32 |     let mut target = std::io::Cursor::new(vec![]);
Oct 13 06:41:02.785 INFO kablam!    |         ----^^^^^^
Oct 13 06:41:02.785 INFO kablam!    |         |
Oct 13 06:41:02.785 INFO kablam!    |         help: remove this `mut`
Oct 13 06:41:02.785 INFO kablam! 
Oct 13 06:41:02.786 INFO kablam! warning: variable does not need to be mutable
Oct 13 06:41:02.786 INFO kablam!   --> benches/benches.rs:53:9
Oct 13 06:41:02.786 INFO kablam!    |
Oct 13 06:41:02.786 INFO kablam! 53 |     let mut target = std::io::Cursor::new(vec![]);
Oct 13 06:41:02.787 INFO kablam!    |         ----^^^^^^
Oct 13 06:41:02.787 INFO kablam!    |         |
Oct 13 06:41:02.787 INFO kablam!    |         help: remove this `mut`
Oct 13 06:41:02.787 INFO kablam! 
Oct 13 06:41:02.818 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.42s
Oct 13 06:41:02.822 INFO kablam! su: No module specific data is present
Oct 13 06:41:03.343 INFO running `"docker" "rm" "-f" "dc63210f7a833fefa4911cf255de79e86abf311367fe6b5c319f70ea3210910f"`
Oct 13 06:41:03.701 INFO blam! dc63210f7a833fefa4911cf255de79e86abf311367fe6b5c319f70ea3210910f