Dec 19 06:35:04.028 INFO checking tuvistavie/rust-simple-nn against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 06:35:04.028 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/tuvistavie/rust-simple-nn:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 06:35:04.579 INFO [stdout] ca5bd5567f7b9c7c5da622d121b1241f8a5b5c2e268a8d9822ff11d8eeeb320c
Dec 19 06:35:04.581 INFO running `"docker" "start" "-a" "ca5bd5567f7b9c7c5da622d121b1241f8a5b5c2e268a8d9822ff11d8eeeb320c"`
Dec 19 06:35:06.876 INFO [stderr]     Checking rand v0.3.15
Dec 19 06:35:08.186 INFO [stderr]     Checking simple_nn v0.1.0 (/opt/crater/workdir)
Dec 19 06:35:10.950 INFO [stderr] warning: unused arithmetic operation that must be used
Dec 19 06:35:10.950 INFO [stderr]   --> tests/linalg_matrix.rs:35:5
Dec 19 06:35:10.950 INFO [stderr]    |
Dec 19 06:35:10.950 INFO [stderr] 35 |     &matrix + &other;
Dec 19 06:35:10.950 INFO [stderr]    |     ^^^^^^^^^^^^^^^^
Dec 19 06:35:10.950 INFO [stderr]    |
Dec 19 06:35:10.950 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 06:35:10.950 INFO [stderr] 
Dec 19 06:35:10.973 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.14s
Dec 19 06:35:11.571 INFO running `"docker" "inspect" "ca5bd5567f7b9c7c5da622d121b1241f8a5b5c2e268a8d9822ff11d8eeeb320c"`
Dec 19 06:35:11.888 INFO running `"docker" "rm" "-f" "ca5bd5567f7b9c7c5da622d121b1241f8a5b5c2e268a8d9822ff11d8eeeb320c"`
Dec 19 06:35:12.160 INFO [stdout] ca5bd5567f7b9c7c5da622d121b1241f8a5b5c2e268a8d9822ff11d8eeeb320c