Dec 12 02:27:42.621 INFO checking HeroicKatora/automata against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 02:27:42.621 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 02:27:43.048 INFO [stdout] 260b0ac5a3aa0a4b9845cd7a4b315b992b8b2e723f5947df41973958dbf3e449
Dec 12 02:27:43.050 INFO running `"docker" "start" "-a" "260b0ac5a3aa0a4b9845cd7a4b315b992b8b2e723f5947df41973958dbf3e449"`
Dec 12 02:27:44.384 INFO [stderr] usermod: no changes
Dec 12 02:27:44.489 INFO [stderr]     Checking automata v0.0.3 (/source)
Dec 12 02:27:45.660 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 02:27:45.660 INFO [stderr]    --> src/dot.rs:137:9
Dec 12 02:27:45.660 INFO [stderr]     |
Dec 12 02:27:45.660 INFO [stderr] 137 |         write!(fmt, "\t{} ", id);
Dec 12 02:27:45.660 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 02:27:45.660 INFO [stderr]     |
Dec 12 02:27:45.660 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 12 02:27:45.660 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 02:27:45.660 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 12 02:27:45.660 INFO [stderr] 
Dec 12 02:27:45.840 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 02:27:45.840 INFO [stderr]    --> src/dot.rs:137:9
Dec 12 02:27:45.840 INFO [stderr]     |
Dec 12 02:27:45.840 INFO [stderr] 137 |         write!(fmt, "\t{} ", id);
Dec 12 02:27:45.840 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 02:27:45.840 INFO [stderr]     |
Dec 12 02:27:45.840 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 12 02:27:45.840 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 02:27:45.840 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 12 02:27:45.840 INFO [stderr] 
Dec 12 02:27:46.683 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.26s
Dec 12 02:27:46.692 INFO [stderr] su: No module specific data is present
Dec 12 02:27:47.564 INFO running `"docker" "inspect" "260b0ac5a3aa0a4b9845cd7a4b315b992b8b2e723f5947df41973958dbf3e449"`
Dec 12 02:27:47.928 INFO running `"docker" "rm" "-f" "260b0ac5a3aa0a4b9845cd7a4b315b992b8b2e723f5947df41973958dbf3e449"`
Dec 12 02:27:48.180 INFO [stdout] 260b0ac5a3aa0a4b9845cd7a4b315b992b8b2e723f5947df41973958dbf3e449