Dec 14 11:53:17.946 INFO testing Bkindmonk/RustPractice against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 14 11:53:17.946 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-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"`
Dec 14 11:53:18.461 INFO [stdout] ac05cee3b3cad252a68ef095429b58fdb8efb7dcbd3f3947eac916206a6d5e0e
Dec 14 11:53:18.464 INFO running `"docker" "start" "-a" "ac05cee3b3cad252a68ef095429b58fdb8efb7dcbd3f3947eac916206a6d5e0e"`
Dec 14 11:53:19.635 INFO [stderr] usermod: no changes
Dec 14 11:53:19.701 INFO [stderr]    Compiling mergesort v0.1.0 (/source)
Dec 14 11:53:20.371 INFO [stderr] warning: variable does not need to be mutable
Dec 14 11:53:20.371 INFO [stderr]   --> src/main.rs:91:13
Dec 14 11:53:20.371 INFO [stderr]    |
Dec 14 11:53:20.371 INFO [stderr] 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Dec 14 11:53:20.371 INFO [stderr]    |             ----^^^^^^^^^^
Dec 14 11:53:20.371 INFO [stderr]    |             |
Dec 14 11:53:20.371 INFO [stderr]    |             help: remove this `mut`
Dec 14 11:53:20.371 INFO [stderr]    |
Dec 14 11:53:20.371 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 14 11:53:20.371 INFO [stderr] 
Dec 14 11:53:20.371 INFO [stderr] warning: variable does not need to be mutable
Dec 14 11:53:20.371 INFO [stderr]   --> src/main.rs:92:13
Dec 14 11:53:20.371 INFO [stderr]    |
Dec 14 11:53:20.371 INFO [stderr] 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Dec 14 11:53:20.371 INFO [stderr]    |             ----^^^^^^^^^^^^^
Dec 14 11:53:20.371 INFO [stderr]    |             |
Dec 14 11:53:20.371 INFO [stderr]    |             help: remove this `mut`
Dec 14 11:53:20.371 INFO [stderr] 
Dec 14 11:53:20.939 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
Dec 14 11:53:20.939 INFO [stderr] su: No module specific data is present
Dec 14 11:53:21.608 INFO running `"docker" "inspect" "ac05cee3b3cad252a68ef095429b58fdb8efb7dcbd3f3947eac916206a6d5e0e"`
Dec 14 11:53:21.927 INFO running `"docker" "rm" "-f" "ac05cee3b3cad252a68ef095429b58fdb8efb7dcbd3f3947eac916206a6d5e0e"`
Dec 14 11:53:22.147 INFO [stdout] ac05cee3b3cad252a68ef095429b58fdb8efb7dcbd3f3947eac916206a6d5e0e
Dec 14 11:53:22.149 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-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"`
Dec 14 11:53:22.662 INFO [stdout] 03482531b0b42860c5e60bea85cd4db2e33ed0a838f5c5d7ddec7e8b8937dfb5
Dec 14 11:53:22.669 INFO running `"docker" "start" "-a" "03482531b0b42860c5e60bea85cd4db2e33ed0a838f5c5d7ddec7e8b8937dfb5"`
Dec 14 11:53:23.790 INFO [stderr] usermod: no changes
Dec 14 11:53:23.867 INFO [stderr]    Compiling mergesort v0.1.0 (/source)
Dec 14 11:53:24.651 INFO [stderr] warning: variable does not need to be mutable
Dec 14 11:53:24.651 INFO [stderr]   --> src/main.rs:91:13
Dec 14 11:53:24.651 INFO [stderr]    |
Dec 14 11:53:24.651 INFO [stderr] 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Dec 14 11:53:24.651 INFO [stderr]    |             ----^^^^^^^^^^
Dec 14 11:53:24.651 INFO [stderr]    |             |
Dec 14 11:53:24.651 INFO [stderr]    |             help: remove this `mut`
Dec 14 11:53:24.651 INFO [stderr]    |
Dec 14 11:53:24.651 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 14 11:53:24.651 INFO [stderr] 
Dec 14 11:53:24.651 INFO [stderr] warning: variable does not need to be mutable
Dec 14 11:53:24.651 INFO [stderr]   --> src/main.rs:92:13
Dec 14 11:53:24.651 INFO [stderr]    |
Dec 14 11:53:24.651 INFO [stderr] 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Dec 14 11:53:24.651 INFO [stderr]    |             ----^^^^^^^^^^^^^
Dec 14 11:53:24.651 INFO [stderr]    |             |
Dec 14 11:53:24.651 INFO [stderr]    |             help: remove this `mut`
Dec 14 11:53:24.651 INFO [stderr] 
Dec 14 11:53:25.053 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
Dec 14 11:53:25.055 INFO [stderr] su: No module specific data is present
Dec 14 11:53:25.612 INFO running `"docker" "inspect" "03482531b0b42860c5e60bea85cd4db2e33ed0a838f5c5d7ddec7e8b8937dfb5"`
Dec 14 11:53:25.918 INFO running `"docker" "rm" "-f" "03482531b0b42860c5e60bea85cd4db2e33ed0a838f5c5d7ddec7e8b8937dfb5"`
Dec 14 11:53:26.203 INFO [stdout] 03482531b0b42860c5e60bea85cd4db2e33ed0a838f5c5d7ddec7e8b8937dfb5
Dec 14 11:53:26.211 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-2/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen" "-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"`
Dec 14 11:53:26.818 INFO [stdout] d6cf5395268e591e16702bbefd92883962dd40feca6e1be71daa7d48852403fe
Dec 14 11:53:26.824 INFO running `"docker" "start" "-a" "d6cf5395268e591e16702bbefd92883962dd40feca6e1be71daa7d48852403fe"`
Dec 14 11:53:28.108 INFO [stderr] usermod: no changes
Dec 14 11:53:28.167 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 14 11:53:28.175 INFO [stderr]      Running /target/debug/deps/mergesort-d879e865f01e37ca
Dec 14 11:53:28.183 INFO [stderr] su: No module specific data is present
Dec 14 11:53:28.183 INFO [stdout] 
Dec 14 11:53:28.183 INFO [stdout] running 0 tests
Dec 14 11:53:28.183 INFO [stdout] 
Dec 14 11:53:28.183 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 14 11:53:28.183 INFO [stdout] 
Dec 14 11:53:28.995 INFO running `"docker" "inspect" "d6cf5395268e591e16702bbefd92883962dd40feca6e1be71daa7d48852403fe"`
Dec 14 11:53:29.257 INFO running `"docker" "rm" "-f" "d6cf5395268e591e16702bbefd92883962dd40feca6e1be71daa7d48852403fe"`
Dec 14 11:53:29.591 INFO [stdout] d6cf5395268e591e16702bbefd92883962dd40feca6e1be71daa7d48852403fe