Oct 13 05:26:44.398 INFO checking Bkindmonk/RustPractice against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 05:26:44.400 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-7/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-7/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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"`
Oct 13 05:26:44.978 INFO blam! 848ab70b04456557d511dbed65d4684207875a4873730119bdf475a4f5f99c4d
Oct 13 05:26:44.980 INFO running `"docker" "start" "-a" "848ab70b04456557d511dbed65d4684207875a4873730119bdf475a4f5f99c4d"`
Oct 13 05:26:46.460 INFO kablam! usermod: no changes
Oct 13 05:26:46.548 INFO kablam!     Checking mergesort v0.1.0 (/source)
Oct 13 05:26:47.456 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:26:47.456 INFO kablam!   --> src/main.rs:91:13
Oct 13 05:26:47.456 INFO kablam!    |
Oct 13 05:26:47.456 INFO kablam! 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Oct 13 05:26:47.456 INFO kablam!    |             ----^^^^^^^^^^
Oct 13 05:26:47.456 INFO kablam!    |             |
Oct 13 05:26:47.456 INFO kablam!    |             help: remove this `mut`
Oct 13 05:26:47.456 INFO kablam!    |
Oct 13 05:26:47.456 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 05:26:47.456 INFO kablam! 
Oct 13 05:26:47.456 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:26:47.456 INFO kablam!   --> src/main.rs:92:13
Oct 13 05:26:47.456 INFO kablam!    |
Oct 13 05:26:47.457 INFO kablam! 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Oct 13 05:26:47.457 INFO kablam!    |             ----^^^^^^^^^^^^^
Oct 13 05:26:47.457 INFO kablam!    |             |
Oct 13 05:26:47.457 INFO kablam!    |             help: remove this `mut`
Oct 13 05:26:47.457 INFO kablam! 
Oct 13 05:26:47.700 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:26:47.700 INFO kablam!   --> src/main.rs:91:13
Oct 13 05:26:47.700 INFO kablam!    |
Oct 13 05:26:47.700 INFO kablam! 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Oct 13 05:26:47.700 INFO kablam!    |             ----^^^^^^^^^^
Oct 13 05:26:47.700 INFO kablam!    |             |
Oct 13 05:26:47.700 INFO kablam!    |             help: remove this `mut`
Oct 13 05:26:47.700 INFO kablam!    |
Oct 13 05:26:47.700 INFO kablam!    = note: #[warn(unused_mut)] on by default
Oct 13 05:26:47.700 INFO kablam! 
Oct 13 05:26:47.700 INFO kablam! warning: variable does not need to be mutable
Oct 13 05:26:47.700 INFO kablam!   --> src/main.rs:92:13
Oct 13 05:26:47.700 INFO kablam!    |
Oct 13 05:26:47.700 INFO kablam! 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Oct 13 05:26:47.700 INFO kablam!    |             ----^^^^^^^^^^^^^
Oct 13 05:26:47.700 INFO kablam!    |             |
Oct 13 05:26:47.700 INFO kablam!    |             help: remove this `mut`
Oct 13 05:26:47.700 INFO kablam! 
Oct 13 05:26:47.723 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
Oct 13 05:26:47.723 INFO kablam! su: No module specific data is present
Oct 13 05:26:48.761 INFO running `"docker" "rm" "-f" "848ab70b04456557d511dbed65d4684207875a4873730119bdf475a4f5f99c4d"`
Oct 13 05:26:49.040 INFO blam! 848ab70b04456557d511dbed65d4684207875a4873730119bdf475a4f5f99c4d