Nov 07 10:38:40.929 INFO checking puzzle-solver-0.4.1 against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 07 10:38:40.931 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-5/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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 07 10:38:41.304 INFO blam! 5ec616ac8eecec8988373a31bbac1232093be145ef6b1e0917f00b9aa43943eb
Nov 07 10:38:41.306 INFO running `"docker" "start" "-a" "5ec616ac8eecec8988373a31bbac1232093be145ef6b1e0917f00b9aa43943eb"`
Nov 07 10:38:42.933 INFO kablam! usermod: no changes
Nov 07 10:38:43.064 INFO kablam!     Checking num-rational v0.1.42
Nov 07 10:38:44.066 INFO kablam!     Checking puzzle-solver v0.4.1 (/source)
Nov 07 10:38:45.520 INFO kablam! warning: variable does not need to be mutable
Nov 07 10:38:45.520 INFO kablam!    --> src/puzzle.rs:898:21
Nov 07 10:38:45.520 INFO kablam!     |
Nov 07 10:38:45.520 INFO kablam! 898 |         let (mut l, mut r) = slice.split_at_mut(b);
Nov 07 10:38:45.520 INFO kablam!     |                     ----^
Nov 07 10:38:45.520 INFO kablam!     |                     |
Nov 07 10:38:45.520 INFO kablam!     |                     help: remove this `mut`
Nov 07 10:38:45.520 INFO kablam!     |
Nov 07 10:38:45.520 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 07 10:38:45.520 INFO kablam! 
Nov 07 10:38:45.520 INFO kablam! warning: variable does not need to be mutable
Nov 07 10:38:45.520 INFO kablam!    --> src/puzzle.rs:898:14
Nov 07 10:38:45.520 INFO kablam!     |
Nov 07 10:38:45.520 INFO kablam! 898 |         let (mut l, mut r) = slice.split_at_mut(b);
Nov 07 10:38:45.520 INFO kablam!     |              ----^
Nov 07 10:38:45.520 INFO kablam!     |              |
Nov 07 10:38:45.520 INFO kablam!     |              help: remove this `mut`
Nov 07 10:38:45.521 INFO kablam! 
Nov 07 10:38:48.148 INFO kablam! warning: variable does not need to be mutable
Nov 07 10:38:48.148 INFO kablam!    --> src/puzzle.rs:898:21
Nov 07 10:38:48.148 INFO kablam!     |
Nov 07 10:38:48.148 INFO kablam! 898 |         let (mut l, mut r) = slice.split_at_mut(b);
Nov 07 10:38:48.148 INFO kablam!     |                     ----^
Nov 07 10:38:48.148 INFO kablam!     |                     |
Nov 07 10:38:48.148 INFO kablam!     |                     help: remove this `mut`
Nov 07 10:38:48.148 INFO kablam!     |
Nov 07 10:38:48.148 INFO kablam!     = note: #[warn(unused_mut)] on by default
Nov 07 10:38:48.148 INFO kablam! 
Nov 07 10:38:48.148 INFO kablam! warning: variable does not need to be mutable
Nov 07 10:38:48.148 INFO kablam!    --> src/puzzle.rs:898:14
Nov 07 10:38:48.148 INFO kablam!     |
Nov 07 10:38:48.148 INFO kablam! 898 |         let (mut l, mut r) = slice.split_at_mut(b);
Nov 07 10:38:48.148 INFO kablam!     |              ----^
Nov 07 10:38:48.148 INFO kablam!     |              |
Nov 07 10:38:48.148 INFO kablam!     |              help: remove this `mut`
Nov 07 10:38:48.148 INFO kablam! 
Nov 07 10:38:52.714 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.75s
Nov 07 10:38:52.726 INFO kablam! su: No module specific data is present
Nov 07 10:38:53.221 INFO running `"docker" "rm" "-f" "5ec616ac8eecec8988373a31bbac1232093be145ef6b1e0917f00b9aa43943eb"`
Nov 07 10:38:53.548 INFO blam! 5ec616ac8eecec8988373a31bbac1232093be145ef6b1e0917f00b9aa43943eb