Dec 05 00:24:21.244 INFO checking Regan-Koopmans/n-queens against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 00:24:21.244 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 05 00:24:21.723 INFO [stdout] 01f5ec90aa084d2bb4e9d079a57d3d98ee523f902fc79d92cfba276590e8aae7
Dec 05 00:24:21.733 INFO running `"docker" "start" "-a" "01f5ec90aa084d2bb4e9d079a57d3d98ee523f902fc79d92cfba276590e8aae7"`
Dec 05 00:24:23.575 INFO [stderr] usermod: no changes
Dec 05 00:24:23.647 INFO [stderr]     Checking n-queens v0.1.0 (/source)
Dec 05 00:24:24.339 INFO [stderr] warning: unused import: `std::process`
Dec 05 00:24:24.339 INFO [stderr]  --> src/main.rs:5:5
Dec 05 00:24:24.339 INFO [stderr]   |
Dec 05 00:24:24.339 INFO [stderr] 5 | use std::process;
Dec 05 00:24:24.339 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 05 00:24:24.339 INFO [stderr]   |
Dec 05 00:24:24.339 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 00:24:24.339 INFO [stderr] 
Dec 05 00:24:24.539 INFO [stderr] warning: unused import: `std::process`
Dec 05 00:24:24.539 INFO [stderr]  --> src/main.rs:5:5
Dec 05 00:24:24.539 INFO [stderr]   |
Dec 05 00:24:24.539 INFO [stderr] 5 | use std::process;
Dec 05 00:24:24.539 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 05 00:24:24.539 INFO [stderr]   |
Dec 05 00:24:24.539 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 00:24:24.539 INFO [stderr] 
Dec 05 00:24:24.700 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
Dec 05 00:24:24.703 INFO [stderr] su: No module specific data is present
Dec 05 00:24:25.742 INFO running `"docker" "inspect" "01f5ec90aa084d2bb4e9d079a57d3d98ee523f902fc79d92cfba276590e8aae7"`
Dec 05 00:24:25.999 INFO running `"docker" "rm" "-f" "01f5ec90aa084d2bb4e9d079a57d3d98ee523f902fc79d92cfba276590e8aae7"`
Dec 05 00:24:26.356 INFO [stdout] 01f5ec90aa084d2bb4e9d079a57d3d98ee523f902fc79d92cfba276590e8aae7