Nov 17 16:36:47.426 INFO testing Bkindmonk/RustPractice against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 16:36:47.428 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 16:36:48.076 INFO [stdout] 5d4ae7894b99d1c7cc3f5715349994d11d3ecba57d0620328a438ba8d6ec6d5a
Nov 17 16:36:48.079 INFO running `"docker" "start" "-a" "5d4ae7894b99d1c7cc3f5715349994d11d3ecba57d0620328a438ba8d6ec6d5a"`
Nov 17 16:36:50.371 INFO [stderr] usermod: no changes
Nov 17 16:36:50.431 INFO [stderr]    Compiling mergesort v0.1.0 (/source)
Nov 17 16:36:51.002 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:36:51.003 INFO [stderr]   --> src/main.rs:91:13
Nov 17 16:36:51.003 INFO [stderr]    |
Nov 17 16:36:51.004 INFO [stderr] 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Nov 17 16:36:51.005 INFO [stderr]    |             ----^^^^^^^^^^
Nov 17 16:36:51.005 INFO [stderr]    |             |
Nov 17 16:36:51.006 INFO [stderr]    |             help: remove this `mut`
Nov 17 16:36:51.006 INFO [stderr]    |
Nov 17 16:36:51.007 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 16:36:51.007 INFO [stderr] 
Nov 17 16:36:51.008 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:36:51.008 INFO [stderr]   --> src/main.rs:92:13
Nov 17 16:36:51.009 INFO [stderr]    |
Nov 17 16:36:51.010 INFO [stderr] 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Nov 17 16:36:51.010 INFO [stderr]    |             ----^^^^^^^^^^^^^
Nov 17 16:36:51.011 INFO [stderr]    |             |
Nov 17 16:36:51.015 INFO [stderr]    |             help: remove this `mut`
Nov 17 16:36:51.015 INFO [stderr] 
Nov 17 16:36:51.977 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
Nov 17 16:36:51.995 INFO [stderr] su: No module specific data is present
Nov 17 16:36:53.339 INFO running `"docker" "inspect" "5d4ae7894b99d1c7cc3f5715349994d11d3ecba57d0620328a438ba8d6ec6d5a"`
Nov 17 16:36:53.703 INFO running `"docker" "rm" "-f" "5d4ae7894b99d1c7cc3f5715349994d11d3ecba57d0620328a438ba8d6ec6d5a"`
Nov 17 16:36:54.023 INFO [stdout] 5d4ae7894b99d1c7cc3f5715349994d11d3ecba57d0620328a438ba8d6ec6d5a
Nov 17 16:36:54.032 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 16:36:54.954 INFO [stdout] c97803df953d1f5909b1a69ef09dc5cf14210013a267c2355732cfef70d4320c
Nov 17 16:36:54.956 INFO running `"docker" "start" "-a" "c97803df953d1f5909b1a69ef09dc5cf14210013a267c2355732cfef70d4320c"`
Nov 17 16:36:57.088 INFO [stderr] usermod: no changes
Nov 17 16:36:57.159 INFO [stderr]    Compiling mergesort v0.1.0 (/source)
Nov 17 16:36:57.791 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:36:57.791 INFO [stderr]   --> src/main.rs:91:13
Nov 17 16:36:57.791 INFO [stderr]    |
Nov 17 16:36:57.791 INFO [stderr] 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Nov 17 16:36:57.791 INFO [stderr]    |             ----^^^^^^^^^^
Nov 17 16:36:57.791 INFO [stderr]    |             |
Nov 17 16:36:57.791 INFO [stderr]    |             help: remove this `mut`
Nov 17 16:36:57.791 INFO [stderr]    |
Nov 17 16:36:57.791 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 16:36:57.791 INFO [stderr] 
Nov 17 16:36:57.791 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:36:57.791 INFO [stderr]   --> src/main.rs:92:13
Nov 17 16:36:57.791 INFO [stderr]    |
Nov 17 16:36:57.791 INFO [stderr] 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Nov 17 16:36:57.792 INFO [stderr]    |             ----^^^^^^^^^^^^^
Nov 17 16:36:57.792 INFO [stderr]    |             |
Nov 17 16:36:57.792 INFO [stderr]    |             help: remove this `mut`
Nov 17 16:36:57.792 INFO [stderr] 
Nov 17 16:36:58.229 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
Nov 17 16:36:58.232 INFO [stderr] su: No module specific data is present
Nov 17 16:36:59.159 INFO running `"docker" "inspect" "c97803df953d1f5909b1a69ef09dc5cf14210013a267c2355732cfef70d4320c"`
Nov 17 16:36:59.469 INFO running `"docker" "rm" "-f" "c97803df953d1f5909b1a69ef09dc5cf14210013a267c2355732cfef70d4320c"`
Nov 17 16:36:59.772 INFO [stdout] c97803df953d1f5909b1a69ef09dc5cf14210013a267c2355732cfef70d4320c
Nov 17 16:36:59.773 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-7/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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"`
Nov 17 16:37:00.292 INFO [stdout] fb432ff1bd255323de8543e8e3f4605ec58922f1d38ca72d1751de3afdf40f7c
Nov 17 16:37:00.294 INFO running `"docker" "start" "-a" "fb432ff1bd255323de8543e8e3f4605ec58922f1d38ca72d1751de3afdf40f7c"`
Nov 17 16:37:02.282 INFO [stderr] usermod: no changes
Nov 17 16:37:02.363 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
Nov 17 16:37:02.363 INFO [stderr]      Running /target/debug/deps/mergesort-45a39af612f1aa08
Nov 17 16:37:02.403 INFO [stdout] 
Nov 17 16:37:02.403 INFO [stdout] running 0 tests
Nov 17 16:37:02.404 INFO [stdout] 
Nov 17 16:37:02.404 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 16:37:02.404 INFO [stdout] 
Nov 17 16:37:02.405 INFO [stderr] su: No module specific data is present
Nov 17 16:37:03.403 INFO running `"docker" "inspect" "fb432ff1bd255323de8543e8e3f4605ec58922f1d38ca72d1751de3afdf40f7c"`
Nov 17 16:37:03.837 INFO running `"docker" "rm" "-f" "fb432ff1bd255323de8543e8e3f4605ec58922f1d38ca72d1751de3afdf40f7c"`
Nov 17 16:37:04.187 INFO [stdout] fb432ff1bd255323de8543e8e3f4605ec58922f1d38ca72d1751de3afdf40f7c