Nov 09 20:46:56.048 INFO checking Bkindmonk/RustPractice against try#dc13be39fae8d4c607889b27de374b52586485a3 for pr-55632
Nov 09 20:46:56.050 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-6/try#dc13be39fae8d4c607889b27de374b52586485a3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55632/try#dc13be39fae8d4c607889b27de374b52586485a3:/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 +dc13be39fae8d4c607889b27de374b52586485a3-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 20:46:57.015 INFO blam! 03f3be492eda2eaf0c38455fad371ba07d06b76ee57ffbc1e47a89710e975fda
Nov 09 20:46:57.020 INFO running `"docker" "start" "-a" "03f3be492eda2eaf0c38455fad371ba07d06b76ee57ffbc1e47a89710e975fda"`
Nov 09 20:46:58.678 INFO kablam! usermod: no changes
Nov 09 20:46:58.759 INFO kablam!     Checking mergesort v0.1.0 (/source)
Nov 09 20:46:59.855 INFO kablam! warning: variable does not need to be mutable
Nov 09 20:46:59.855 INFO kablam!   --> src/main.rs:91:13
Nov 09 20:46:59.855 INFO kablam!    |
Nov 09 20:46:59.855 INFO kablam! 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Nov 09 20:46:59.855 INFO kablam!    |             ----^^^^^^^^^^
Nov 09 20:46:59.855 INFO kablam!    |             |
Nov 09 20:46:59.855 INFO kablam!    |             help: remove this `mut`
Nov 09 20:46:59.857 INFO kablam!    |
Nov 09 20:46:59.857 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 09 20:46:59.857 INFO kablam! 
Nov 09 20:46:59.857 INFO kablam! warning: variable does not need to be mutable
Nov 09 20:46:59.857 INFO kablam!   --> src/main.rs:92:13
Nov 09 20:46:59.857 INFO kablam!    |
Nov 09 20:46:59.857 INFO kablam! 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Nov 09 20:46:59.857 INFO kablam!    |             ----^^^^^^^^^^^^^
Nov 09 20:46:59.857 INFO kablam!    |             |
Nov 09 20:46:59.857 INFO kablam!    |             help: remove this `mut`
Nov 09 20:46:59.857 INFO kablam! 
Nov 09 20:46:59.988 INFO kablam! warning: variable does not need to be mutable
Nov 09 20:46:59.988 INFO kablam!   --> src/main.rs:91:13
Nov 09 20:46:59.988 INFO kablam!    |
Nov 09 20:46:59.988 INFO kablam! 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Nov 09 20:46:59.988 INFO kablam!    |             ----^^^^^^^^^^
Nov 09 20:46:59.988 INFO kablam!    |             |
Nov 09 20:46:59.988 INFO kablam!    |             help: remove this `mut`
Nov 09 20:46:59.988 INFO kablam!    |
Nov 09 20:46:59.988 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 09 20:46:59.988 INFO kablam! 
Nov 09 20:46:59.988 INFO kablam! warning: variable does not need to be mutable
Nov 09 20:46:59.988 INFO kablam!   --> src/main.rs:92:13
Nov 09 20:46:59.988 INFO kablam!    |
Nov 09 20:46:59.988 INFO kablam! 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Nov 09 20:46:59.988 INFO kablam!    |             ----^^^^^^^^^^^^^
Nov 09 20:46:59.988 INFO kablam!    |             |
Nov 09 20:46:59.991 INFO kablam!    |             help: remove this `mut`
Nov 09 20:46:59.991 INFO kablam! 
Nov 09 20:47:00.021 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
Nov 09 20:47:00.029 INFO kablam! su: No module specific data is present
Nov 09 20:47:01.443 INFO running `"docker" "rm" "-f" "03f3be492eda2eaf0c38455fad371ba07d06b76ee57ffbc1e47a89710e975fda"`
Nov 09 20:47:01.895 INFO blam! 03f3be492eda2eaf0c38455fad371ba07d06b76ee57ffbc1e47a89710e975fda