Dec 05 06:10:30.773 INFO checking stacktrace-0.2.1 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 06:10:30.773 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 06:10:31.351 INFO [stdout] ffbbad6330e8577448af1ef0c241e0bebcf6dc437b5cc42de68a583ff7e9cf47
Dec 05 06:10:31.353 INFO running `"docker" "start" "-a" "ffbbad6330e8577448af1ef0c241e0bebcf6dc437b5cc42de68a583ff7e9cf47"`
Dec 05 06:10:33.547 INFO [stderr] usermod: no changes
Dec 05 06:10:33.631 INFO [stderr]     Checking backtrace v0.2.3
Dec 05 06:10:34.422 INFO [stderr]     Checking stacktrace v0.2.1 (/source)
Dec 05 06:10:37.423 INFO [stderr] warning: unused import: `std::fmt::Debug`
Dec 05 06:10:37.423 INFO [stderr]  --> examples/using_result/main.rs:3:5
Dec 05 06:10:37.423 INFO [stderr]   |
Dec 05 06:10:37.423 INFO [stderr] 3 | use std::fmt::Debug;
Dec 05 06:10:37.423 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 05 06:10:37.423 INFO [stderr]   |
Dec 05 06:10:37.423 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 06:10:37.423 INFO [stderr] 
Dec 05 06:10:37.572 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.00s
Dec 05 06:10:37.573 INFO [stderr] su: No module specific data is present
Dec 05 06:10:38.555 INFO running `"docker" "inspect" "ffbbad6330e8577448af1ef0c241e0bebcf6dc437b5cc42de68a583ff7e9cf47"`
Dec 05 06:10:38.953 INFO running `"docker" "rm" "-f" "ffbbad6330e8577448af1ef0c241e0bebcf6dc437b5cc42de68a583ff7e9cf47"`
Dec 05 06:10:39.371 INFO [stdout] ffbbad6330e8577448af1ef0c241e0bebcf6dc437b5cc42de68a583ff7e9cf47