Nov 09 20:46:56.933 INFO checking Bkindmonk/RustPractice against master#653da4fd006c97625247acd7e076d0782cdc149b for pr-55632
Nov 09 20:46:56.935 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-1/master#653da4fd006c97625247acd7e076d0782cdc149b:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55632/master#653da4fd006c97625247acd7e076d0782cdc149b:/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 +653da4fd006c97625247acd7e076d0782cdc149b-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 09 20:46:57.427 INFO blam! 6c4d5dbe533850ef66889822e15a52ce34138376042f536b40ec43ff0cbab96f
Nov 09 20:46:57.431 INFO running `"docker" "start" "-a" "6c4d5dbe533850ef66889822e15a52ce34138376042f536b40ec43ff0cbab96f"`
Nov 09 20:46:59.727 INFO kablam! usermod: no changes
Nov 09 20:46:59.775 INFO kablam!     Checking mergesort v0.1.0 (/source)
Nov 09 20:47:00.699 INFO kablam! warning: variable does not need to be mutable
Nov 09 20:47:00.699 INFO kablam!   --> src/main.rs:91:13
Nov 09 20:47:00.699 INFO kablam!    |
Nov 09 20:47:00.699 INFO kablam! 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Nov 09 20:47:00.699 INFO kablam!    |             ----^^^^^^^^^^
Nov 09 20:47:00.699 INFO kablam!    |             |
Nov 09 20:47:00.699 INFO kablam!    |             help: remove this `mut`
Nov 09 20:47:00.699 INFO kablam!    |
Nov 09 20:47:00.699 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 09 20:47:00.699 INFO kablam! 
Nov 09 20:47:00.699 INFO kablam! warning: variable does not need to be mutable
Nov 09 20:47:00.699 INFO kablam!   --> src/main.rs:92:13
Nov 09 20:47:00.699 INFO kablam!    |
Nov 09 20:47:00.699 INFO kablam! 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Nov 09 20:47:00.699 INFO kablam!    |             ----^^^^^^^^^^^^^
Nov 09 20:47:00.699 INFO kablam!    |             |
Nov 09 20:47:00.699 INFO kablam!    |             help: remove this `mut`
Nov 09 20:47:00.699 INFO kablam! 
Nov 09 20:47:00.903 INFO kablam! warning: variable does not need to be mutable
Nov 09 20:47:00.903 INFO kablam!   --> src/main.rs:91:13
Nov 09 20:47:00.903 INFO kablam!    |
Nov 09 20:47:00.903 INFO kablam! 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Nov 09 20:47:00.903 INFO kablam!    |             ----^^^^^^^^^^
Nov 09 20:47:00.903 INFO kablam!    |             |
Nov 09 20:47:00.903 INFO kablam!    |             help: remove this `mut`
Nov 09 20:47:00.903 INFO kablam!    |
Nov 09 20:47:00.903 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 09 20:47:00.903 INFO kablam! 
Nov 09 20:47:00.903 INFO kablam! warning: variable does not need to be mutable
Nov 09 20:47:00.903 INFO kablam!   --> src/main.rs:92:13
Nov 09 20:47:00.903 INFO kablam!    |
Nov 09 20:47:00.903 INFO kablam! 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Nov 09 20:47:00.903 INFO kablam!    |             ----^^^^^^^^^^^^^
Nov 09 20:47:00.903 INFO kablam!    |             |
Nov 09 20:47:00.903 INFO kablam!    |             help: remove this `mut`
Nov 09 20:47:00.903 INFO kablam! 
Nov 09 20:47:00.914 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
Nov 09 20:47:00.916 INFO kablam! su: No module specific data is present
Nov 09 20:47:02.343 INFO running `"docker" "rm" "-f" "6c4d5dbe533850ef66889822e15a52ce34138376042f536b40ec43ff0cbab96f"`
Nov 09 20:47:02.695 INFO blam! 6c4d5dbe533850ef66889822e15a52ce34138376042f536b40ec43ff0cbab96f