Dec 05 08:07:21.776 INFO checking rnix-0.4.2 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 08:07:21.776 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-0/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 08:07:22.215 INFO [stdout] 9053c9db6d643d55feb98ab8741cd3ace8251f4e0899872cf9b45f1809a7847d
Dec 05 08:07:22.215 INFO running `"docker" "start" "-a" "9053c9db6d643d55feb98ab8741cd3ace8251f4e0899872cf9b45f1809a7847d"`
Dec 05 08:07:23.815 INFO [stderr] usermod: no changes
Dec 05 08:07:23.903 INFO [stderr]     Checking smol_str v0.1.7
Dec 05 08:07:23.903 INFO [stderr]     Checking arenatree v0.1.3
Dec 05 08:07:24.814 INFO [stderr]     Checking rnix v0.4.2 (/source)
Dec 05 08:07:32.823 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 08:07:32.823 INFO [stderr]   --> examples/error-report.rs:61:9
Dec 05 08:07:32.823 INFO [stderr]    |
Dec 05 08:07:32.823 INFO [stderr] 61 |         writeln!(stdout, "At {}:{}:{}", file, line, col);
Dec 05 08:07:32.823 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 08:07:32.823 INFO [stderr]    |
Dec 05 08:07:32.823 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 08:07:32.823 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 08:07:32.823 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 08:07:32.823 INFO [stderr] 
Dec 05 08:07:32.839 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.00s
Dec 05 08:07:32.843 INFO [stderr] su: No module specific data is present
Dec 05 08:07:33.607 INFO running `"docker" "inspect" "9053c9db6d643d55feb98ab8741cd3ace8251f4e0899872cf9b45f1809a7847d"`
Dec 05 08:07:33.925 INFO running `"docker" "rm" "-f" "9053c9db6d643d55feb98ab8741cd3ace8251f4e0899872cf9b45f1809a7847d"`
Dec 05 08:07:34.187 INFO [stdout] 9053c9db6d643d55feb98ab8741cd3ace8251f4e0899872cf9b45f1809a7847d