Nov 30 17:41:13.666 INFO checking puzzle-solver-0.4.1 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 17:41:13.666 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-5/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 17:41:14.221 INFO [stdout] d1762a5ae51066a5f3a6109b747c42e7a7d10b616b83feeebb2adec966a20505
Nov 30 17:41:14.227 INFO running `"docker" "start" "-a" "d1762a5ae51066a5f3a6109b747c42e7a7d10b616b83feeebb2adec966a20505"`
Nov 30 17:41:15.212 INFO [stderr] usermod: no changes
Nov 30 17:41:15.284 INFO [stderr]     Checking num-rational v0.1.42
Nov 30 17:41:16.120 INFO [stderr]     Checking puzzle-solver v0.4.1 (/source)
Nov 30 17:41:17.428 INFO [stderr] warning: variable does not need to be mutable
Nov 30 17:41:17.428 INFO [stderr]    --> src/puzzle.rs:898:21
Nov 30 17:41:17.428 INFO [stderr]     |
Nov 30 17:41:17.428 INFO [stderr] 898 |         let (mut l, mut r) = slice.split_at_mut(b);
Nov 30 17:41:17.428 INFO [stderr]     |                     ----^
Nov 30 17:41:17.428 INFO [stderr]     |                     |
Nov 30 17:41:17.428 INFO [stderr]     |                     help: remove this `mut`
Nov 30 17:41:17.428 INFO [stderr]     |
Nov 30 17:41:17.428 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 17:41:17.428 INFO [stderr] 
Nov 30 17:41:17.428 INFO [stderr] warning: variable does not need to be mutable
Nov 30 17:41:17.428 INFO [stderr]    --> src/puzzle.rs:898:14
Nov 30 17:41:17.428 INFO [stderr]     |
Nov 30 17:41:17.428 INFO [stderr] 898 |         let (mut l, mut r) = slice.split_at_mut(b);
Nov 30 17:41:17.428 INFO [stderr]     |              ----^
Nov 30 17:41:17.428 INFO [stderr]     |              |
Nov 30 17:41:17.428 INFO [stderr]     |              help: remove this `mut`
Nov 30 17:41:17.428 INFO [stderr] 
Nov 30 17:41:18.578 INFO [stderr] warning: variable does not need to be mutable
Nov 30 17:41:18.578 INFO [stderr]    --> src/puzzle.rs:898:21
Nov 30 17:41:18.578 INFO [stderr]     |
Nov 30 17:41:18.578 INFO [stderr] 898 |         let (mut l, mut r) = slice.split_at_mut(b);
Nov 30 17:41:18.579 INFO [stderr]     |                     ----^
Nov 30 17:41:18.579 INFO [stderr]     |                     |
Nov 30 17:41:18.579 INFO [stderr]     |                     help: remove this `mut`
Nov 30 17:41:18.579 INFO [stderr]     |
Nov 30 17:41:18.579 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 30 17:41:18.579 INFO [stderr] 
Nov 30 17:41:18.579 INFO [stderr] warning: variable does not need to be mutable
Nov 30 17:41:18.579 INFO [stderr]    --> src/puzzle.rs:898:14
Nov 30 17:41:18.579 INFO [stderr]     |
Nov 30 17:41:18.579 INFO [stderr] 898 |         let (mut l, mut r) = slice.split_at_mut(b);
Nov 30 17:41:18.579 INFO [stderr]     |              ----^
Nov 30 17:41:18.579 INFO [stderr]     |              |
Nov 30 17:41:18.579 INFO [stderr]     |              help: remove this `mut`
Nov 30 17:41:18.579 INFO [stderr] 
Nov 30 17:41:25.300 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.06s
Nov 30 17:41:25.301 INFO [stderr] su: No module specific data is present
Nov 30 17:41:25.694 INFO running `"docker" "inspect" "d1762a5ae51066a5f3a6109b747c42e7a7d10b616b83feeebb2adec966a20505"`
Nov 30 17:41:25.778 INFO running `"docker" "rm" "-f" "d1762a5ae51066a5f3a6109b747c42e7a7d10b616b83feeebb2adec966a20505"`
Nov 30 17:41:25.862 INFO [stdout] d1762a5ae51066a5f3a6109b747c42e7a7d10b616b83feeebb2adec966a20505