Nov 30 06:02:50.477 INFO checking bon-chi/tower_of_hanoi_in_rust against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 06:02:50.477 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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"`
Nov 30 06:02:50.803 INFO [stdout] 64b2dd4b008dbd86b4e9c49da956f26eaaa042c2b5210f5c498eab8009ed3741
Nov 30 06:02:50.812 INFO running `"docker" "start" "-a" "64b2dd4b008dbd86b4e9c49da956f26eaaa042c2b5210f5c498eab8009ed3741"`
Nov 30 06:02:51.715 INFO [stderr] usermod: no changes
Nov 30 06:02:51.758 INFO [stderr]     Checking tower_of_hanoi_in_rust v0.1.0 (/source)
Nov 30 06:02:52.236 INFO [stderr] warning: variable does not need to be mutable
Nov 30 06:02:52.236 INFO [stderr]   --> src/main.rs:22:9
Nov 30 06:02:52.236 INFO [stderr]    |
Nov 30 06:02:52.236 INFO [stderr] 22 |     let mut new_stream: &mut Vec<i32> = &mut hanoi_stream(n - 1, h1);
Nov 30 06:02:52.236 INFO [stderr]    |         ----^^^^^^^^^^
Nov 30 06:02:52.236 INFO [stderr]    |         |
Nov 30 06:02:52.236 INFO [stderr]    |         help: remove this `mut`
Nov 30 06:02:52.236 INFO [stderr]    |
Nov 30 06:02:52.236 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 06:02:52.236 INFO [stderr] 
Nov 30 06:02:52.284 INFO [stderr] warning: variable does not need to be mutable
Nov 30 06:02:52.284 INFO [stderr]   --> src/main.rs:22:9
Nov 30 06:02:52.284 INFO [stderr]    |
Nov 30 06:02:52.284 INFO [stderr] 22 |     let mut new_stream: &mut Vec<i32> = &mut hanoi_stream(n - 1, h1);
Nov 30 06:02:52.284 INFO [stderr]    |         ----^^^^^^^^^^
Nov 30 06:02:52.284 INFO [stderr]    |         |
Nov 30 06:02:52.284 INFO [stderr]    |         help: remove this `mut`
Nov 30 06:02:52.284 INFO [stderr]    |
Nov 30 06:02:52.285 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 30 06:02:52.285 INFO [stderr] 
Nov 30 06:02:52.304 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
Nov 30 06:02:52.306 INFO [stderr] su: No module specific data is present
Nov 30 06:02:53.002 INFO running `"docker" "inspect" "64b2dd4b008dbd86b4e9c49da956f26eaaa042c2b5210f5c498eab8009ed3741"`
Nov 30 06:02:53.107 INFO running `"docker" "rm" "-f" "64b2dd4b008dbd86b4e9c49da956f26eaaa042c2b5210f5c498eab8009ed3741"`
Nov 30 06:02:53.236 INFO [stdout] 64b2dd4b008dbd86b4e9c49da956f26eaaa042c2b5210f5c498eab8009ed3741