Nov 17 16:37:02.817 INFO testing Bkindmonk/RustPractice against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 16:37:02.819 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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 16:37:03.451 INFO [stdout] 7dbd3dec0bdf075d1768f62b97c33437210789134d32bf44c7061740cd043a87
Nov 17 16:37:03.459 INFO running `"docker" "start" "-a" "7dbd3dec0bdf075d1768f62b97c33437210789134d32bf44c7061740cd043a87"`
Nov 17 16:37:04.827 INFO [stderr] usermod: no changes
Nov 17 16:37:04.907 INFO [stderr]    Compiling mergesort v0.1.0 (/source)
Nov 17 16:37:05.431 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:37:05.431 INFO [stderr]   --> src/main.rs:91:13
Nov 17 16:37:05.432 INFO [stderr]    |
Nov 17 16:37:05.432 INFO [stderr] 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Nov 17 16:37:05.432 INFO [stderr]    |             ----^^^^^^^^^^
Nov 17 16:37:05.433 INFO [stderr]    |             |
Nov 17 16:37:05.433 INFO [stderr]    |             help: remove this `mut`
Nov 17 16:37:05.433 INFO [stderr]    |
Nov 17 16:37:05.433 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 16:37:05.434 INFO [stderr] 
Nov 17 16:37:05.434 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:37:05.434 INFO [stderr]   --> src/main.rs:92:13
Nov 17 16:37:05.435 INFO [stderr]    |
Nov 17 16:37:05.435 INFO [stderr] 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Nov 17 16:37:05.435 INFO [stderr]    |             ----^^^^^^^^^^^^^
Nov 17 16:37:05.436 INFO [stderr]    |             |
Nov 17 16:37:05.436 INFO [stderr]    |             help: remove this `mut`
Nov 17 16:37:05.455 INFO [stderr] 
Nov 17 16:37:06.215 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
Nov 17 16:37:06.216 INFO [stderr] su: No module specific data is present
Nov 17 16:37:07.123 INFO running `"docker" "inspect" "7dbd3dec0bdf075d1768f62b97c33437210789134d32bf44c7061740cd043a87"`
Nov 17 16:37:07.379 INFO running `"docker" "rm" "-f" "7dbd3dec0bdf075d1768f62b97c33437210789134d32bf44c7061740cd043a87"`
Nov 17 16:37:07.683 INFO [stdout] 7dbd3dec0bdf075d1768f62b97c33437210789134d32bf44c7061740cd043a87
Nov 17 16:37:07.691 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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 16:37:08.083 INFO [stdout] 19518d1fc78edadabedb711a31d5ed86299f907f339d9695d02c0acc0d27cf44
Nov 17 16:37:08.091 INFO running `"docker" "start" "-a" "19518d1fc78edadabedb711a31d5ed86299f907f339d9695d02c0acc0d27cf44"`
Nov 17 16:37:09.923 INFO [stderr] usermod: no changes
Nov 17 16:37:09.991 INFO [stderr]    Compiling mergesort v0.1.0 (/source)
Nov 17 16:37:10.699 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:37:10.699 INFO [stderr]   --> src/main.rs:91:13
Nov 17 16:37:10.699 INFO [stderr]    |
Nov 17 16:37:10.699 INFO [stderr] 91 |         let mut realhalves = (*real).split_at_mut(halflength);
Nov 17 16:37:10.699 INFO [stderr]    |             ----^^^^^^^^^^
Nov 17 16:37:10.699 INFO [stderr]    |             |
Nov 17 16:37:10.699 INFO [stderr]    |             help: remove this `mut`
Nov 17 16:37:10.699 INFO [stderr]    |
Nov 17 16:37:10.699 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 16:37:10.699 INFO [stderr] 
Nov 17 16:37:10.699 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:37:10.699 INFO [stderr]   --> src/main.rs:92:13
Nov 17 16:37:10.699 INFO [stderr]    |
Nov 17 16:37:10.699 INFO [stderr] 92 |         let mut scratchhalves = (*scratch).split_at_mut(halflength);
Nov 17 16:37:10.699 INFO [stderr]    |             ----^^^^^^^^^^^^^
Nov 17 16:37:10.699 INFO [stderr]    |             |
Nov 17 16:37:10.699 INFO [stderr]    |             help: remove this `mut`
Nov 17 16:37:10.699 INFO [stderr] 
Nov 17 16:37:11.179 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
Nov 17 16:37:11.185 INFO [stderr] su: No module specific data is present
Nov 17 16:37:12.267 INFO running `"docker" "inspect" "19518d1fc78edadabedb711a31d5ed86299f907f339d9695d02c0acc0d27cf44"`
Nov 17 16:37:12.655 INFO running `"docker" "rm" "-f" "19518d1fc78edadabedb711a31d5ed86299f907f339d9695d02c0acc0d27cf44"`
Nov 17 16:37:12.863 INFO [stdout] 19518d1fc78edadabedb711a31d5ed86299f907f339d9695d02c0acc0d27cf44
Nov 17 16:37:12.870 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-4/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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 16:37:13.297 INFO [stdout] 6cd83df6fb1aaa5794e589b1cab86dbdbd20ecd0277c60e234370191565348c8
Nov 17 16:37:13.301 INFO running `"docker" "start" "-a" "6cd83df6fb1aaa5794e589b1cab86dbdbd20ecd0277c60e234370191565348c8"`
Nov 17 16:37:14.589 INFO [stderr] usermod: no changes
Nov 17 16:37:14.663 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Nov 17 16:37:14.671 INFO [stderr]      Running /target/debug/deps/mergesort-f26051f68b80f163
Nov 17 16:37:14.701 INFO [stdout] 
Nov 17 16:37:14.701 INFO [stdout] running 0 tests
Nov 17 16:37:14.701 INFO [stdout] 
Nov 17 16:37:14.701 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 16:37:14.701 INFO [stdout] 
Nov 17 16:37:14.704 INFO [stderr] su: No module specific data is present
Nov 17 16:37:15.415 INFO running `"docker" "inspect" "6cd83df6fb1aaa5794e589b1cab86dbdbd20ecd0277c60e234370191565348c8"`
Nov 17 16:37:15.677 INFO running `"docker" "rm" "-f" "6cd83df6fb1aaa5794e589b1cab86dbdbd20ecd0277c60e234370191565348c8"`
Nov 17 16:37:16.039 INFO [stdout] 6cd83df6fb1aaa5794e589b1cab86dbdbd20ecd0277c60e234370191565348c8