Dec 05 03:47:43.161 INFO checking zopen-0.3.1 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 03:47:43.161 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 03:47:43.709 INFO [stdout] 5bbde33dc99ad7ddcd6a5bb496a3df3be60ad75cef2d6f9fab57f45b80039061
Dec 05 03:47:43.711 INFO running `"docker" "start" "-a" "5bbde33dc99ad7ddcd6a5bb496a3df3be60ad75cef2d6f9fab57f45b80039061"`
Dec 05 03:47:45.435 INFO [stderr] usermod: no changes
Dec 05 03:47:45.558 INFO [stderr]     Checking zopen v0.3.1 (/source)
Dec 05 03:47:46.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:47:46.979 INFO [stderr]    --> src/tool.rs:189:13
Dec 05 03:47:46.979 INFO [stderr]     |
Dec 05 03:47:46.979 INFO [stderr] 189 |             writeln!(output, "Welt");
Dec 05 03:47:46.979 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:47:46.979 INFO [stderr]     |
Dec 05 03:47:46.979 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 03:47:46.979 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:47:46.979 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 05 03:47:46.979 INFO [stderr] 
Dec 05 03:47:46.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 03:47:46.979 INFO [stderr]    --> src/tool.rs:190:13
Dec 05 03:47:46.979 INFO [stderr]     |
Dec 05 03:47:46.979 INFO [stderr] 190 |             writeln!(output, "Hallo");
Dec 05 03:47:46.979 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 03:47:46.979 INFO [stderr]     |
Dec 05 03:47:46.979 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 03:47:46.979 INFO [stderr]     = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Dec 05 03:47:46.979 INFO [stderr] 
Dec 05 03:47:47.006 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
Dec 05 03:47:47.007 INFO [stderr] su: No module specific data is present
Dec 05 03:47:47.681 INFO running `"docker" "inspect" "5bbde33dc99ad7ddcd6a5bb496a3df3be60ad75cef2d6f9fab57f45b80039061"`
Dec 05 03:47:47.931 INFO running `"docker" "rm" "-f" "5bbde33dc99ad7ddcd6a5bb496a3df3be60ad75cef2d6f9fab57f45b80039061"`
Dec 05 03:47:48.182 INFO [stdout] 5bbde33dc99ad7ddcd6a5bb496a3df3be60ad75cef2d6f9fab57f45b80039061