Nov 04 14:31:41.027 INFO checking Bkindmonk/RustPractice against master#2ad8c7b3502616aff142a4640cce911c6c2c5463 for pr-55655
Nov 04 14:31:41.027 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-7/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55655/master#2ad8c7b3502616aff142a4640cce911c6c2c5463:/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 +2ad8c7b3502616aff142a4640cce911c6c2c5463-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 04 14:31:41.895 INFO blam! 2afd8c35e53734da2a903943f9a7518e74bf0a15e1f70648438818b8463c2440
Nov 04 14:31:41.895 INFO running `"docker" "start" "-a" "2afd8c35e53734da2a903943f9a7518e74bf0a15e1f70648438818b8463c2440"`
Nov 04 14:31:42.987 INFO kablam! usermod: no changes
Nov 04 14:31:43.071 INFO kablam!     Checking mergesort v0.1.0 (/source)
Nov 04 14:31:43.895 INFO kablam! warning: variable does not need to be mutable
Nov 04 14:31:43.896 INFO kablam!   --> src/main.rs:91:13
Nov 04 14:31:43.896 INFO kablam!    |
Nov 04 14:31:43.896 INFO kablam! 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Nov 04 14:31:43.897 INFO kablam!    |             ----^^^^^^^^^^
Nov 04 14:31:43.897 INFO kablam!    |             |
Nov 04 14:31:43.897 INFO kablam!    |             help: remove this `mut`
Nov 04 14:31:43.897 INFO kablam!    |
Nov 04 14:31:43.898 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 04 14:31:43.898 INFO kablam! 
Nov 04 14:31:43.898 INFO kablam! warning: variable does not need to be mutable
Nov 04 14:31:43.898 INFO kablam!   --> src/main.rs:92:13
Nov 04 14:31:43.899 INFO kablam!    |
Nov 04 14:31:43.899 INFO kablam! 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Nov 04 14:31:43.899 INFO kablam!    |             ----^^^^^^^^^^^^^
Nov 04 14:31:43.900 INFO kablam!    |             |
Nov 04 14:31:43.900 INFO kablam!    |             help: remove this `mut`
Nov 04 14:31:43.900 INFO kablam! 
Nov 04 14:31:44.071 INFO kablam! warning: variable does not need to be mutable
Nov 04 14:31:44.071 INFO kablam!   --> src/main.rs:91:13
Nov 04 14:31:44.071 INFO kablam!    |
Nov 04 14:31:44.071 INFO kablam! 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Nov 04 14:31:44.071 INFO kablam!    |             ----^^^^^^^^^^
Nov 04 14:31:44.071 INFO kablam!    |             |
Nov 04 14:31:44.071 INFO kablam!    |             help: remove this `mut`
Nov 04 14:31:44.071 INFO kablam!    |
Nov 04 14:31:44.071 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 04 14:31:44.071 INFO kablam! 
Nov 04 14:31:44.071 INFO kablam! warning: variable does not need to be mutable
Nov 04 14:31:44.071 INFO kablam!   --> src/main.rs:92:13
Nov 04 14:31:44.071 INFO kablam!    |
Nov 04 14:31:44.071 INFO kablam! 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Nov 04 14:31:44.071 INFO kablam!    |             ----^^^^^^^^^^^^^
Nov 04 14:31:44.071 INFO kablam!    |             |
Nov 04 14:31:44.071 INFO kablam!    |             help: remove this `mut`
Nov 04 14:31:44.071 INFO kablam! 
Nov 04 14:31:44.100 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
Nov 04 14:31:44.107 INFO kablam! su: No module specific data is present
Nov 04 14:31:44.927 INFO running `"docker" "rm" "-f" "2afd8c35e53734da2a903943f9a7518e74bf0a15e1f70648438818b8463c2440"`
Nov 04 14:31:45.245 INFO blam! 2afd8c35e53734da2a903943f9a7518e74bf0a15e1f70648438818b8463c2440