Oct 13 00:17:42.640 INFO checking bon-chi/tower_of_hanoi_in_rust against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 00:17:42.640 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 13 00:17:43.044 INFO blam! 23a883cfe0b61ab70a2576066bfc81d7f5d51ed64ef821d440d578f84e797ebf
Oct 13 00:17:43.064 INFO running `"docker" "start" "-a" "23a883cfe0b61ab70a2576066bfc81d7f5d51ed64ef821d440d578f84e797ebf"`
Oct 13 00:17:44.653 INFO kablam! usermod: no changes
Oct 13 00:17:44.752 INFO kablam!     Checking tower_of_hanoi_in_rust v0.1.0 (/source)
Oct 13 00:17:45.528 INFO kablam! warning: variable does not need to be mutable
Oct 13 00:17:45.528 INFO kablam!   --> src/main.rs:22:9
Oct 13 00:17:45.528 INFO kablam!    |
Oct 13 00:17:45.528 INFO kablam! 22 |     let mut new_stream: &mut Vec<i32> = &mut hanoi_stream(n - 1, h1);
Oct 13 00:17:45.528 INFO kablam!    |         ----^^^^^^^^^^
Oct 13 00:17:45.528 INFO kablam!    |         |
Oct 13 00:17:45.528 INFO kablam!    |         help: remove this `mut`
Oct 13 00:17:45.528 INFO kablam!    |
Oct 13 00:17:45.528 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 00:17:45.528 INFO kablam! 
Oct 13 00:17:45.764 INFO kablam! warning: variable does not need to be mutable
Oct 13 00:17:45.764 INFO kablam!   --> src/main.rs:22:9
Oct 13 00:17:45.764 INFO kablam!    |
Oct 13 00:17:45.764 INFO kablam! 22 |     let mut new_stream: &mut Vec<i32> = &mut hanoi_stream(n - 1, h1);
Oct 13 00:17:45.764 INFO kablam!    |         ----^^^^^^^^^^
Oct 13 00:17:45.764 INFO kablam!    |         |
Oct 13 00:17:45.764 INFO kablam!    |         help: remove this `mut`
Oct 13 00:17:45.764 INFO kablam!    |
Oct 13 00:17:45.764 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 00:17:45.764 INFO kablam! 
Oct 13 00:17:45.804 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
Oct 13 00:17:45.808 INFO kablam! su: No module specific data is present
Oct 13 00:17:46.407 INFO running `"docker" "rm" "-f" "23a883cfe0b61ab70a2576066bfc81d7f5d51ed64ef821d440d578f84e797ebf"`
Oct 13 00:17:46.545 INFO blam! 23a883cfe0b61ab70a2576066bfc81d7f5d51ed64ef821d440d578f84e797ebf