Dec 17 13:17:46.048 INFO checking tomwhoiscontrary/isots against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 13:17:46.048 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/tomwhoiscontrary/isots:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 13:17:46.599 INFO [stdout] 4991a0e147f13129e1a631726090711f8b75a958f079534214ccbdd80aa49fa8
Dec 17 13:17:46.601 INFO running `"docker" "start" "-a" "4991a0e147f13129e1a631726090711f8b75a958f079534214ccbdd80aa49fa8"`
Dec 17 13:17:49.292 INFO [stderr]     Checking isots v0.1.0 (/opt/crater/workdir)
Dec 17 13:17:49.788 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 13:17:49.788 INFO [stderr]    --> src/main.rs:149:9
Dec 17 13:17:49.789 INFO [stderr]     |
Dec 17 13:17:49.789 INFO [stderr] 149 | /         write!(out,
Dec 17 13:17:49.789 INFO [stderr] 150 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}Z",
Dec 17 13:17:49.790 INFO [stderr] 151 | |                time.year(),
Dec 17 13:17:49.790 INFO [stderr] 152 | |                time.month(),
Dec 17 13:17:49.790 INFO [stderr] ...   |
Dec 17 13:17:49.791 INFO [stderr] 155 | |                time.minute(),
Dec 17 13:17:49.791 INFO [stderr] 156 | |                time.second());
Dec 17 13:17:49.791 INFO [stderr]     | |______________________________^
Dec 17 13:17:49.792 INFO [stderr]     |
Dec 17 13:17:49.792 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 13:17:49.792 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 13:17:49.793 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 17 13:17:49.793 INFO [stderr] 
Dec 17 13:17:49.793 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 13:17:49.793 INFO [stderr]    --> src/main.rs:158:9
Dec 17 13:17:49.794 INFO [stderr]     |
Dec 17 13:17:49.794 INFO [stderr] 158 | /         write!(out,
Dec 17 13:17:49.795 INFO [stderr] 159 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}.{:0width$}Z",
Dec 17 13:17:49.795 INFO [stderr] 160 | |                time.year(),
Dec 17 13:17:49.795 INFO [stderr] 161 | |                time.month(),
Dec 17 13:17:49.796 INFO [stderr] ...   |
Dec 17 13:17:49.796 INFO [stderr] 166 | |                time.nanosecond(),
Dec 17 13:17:49.796 INFO [stderr] 167 | |                width = fractional_seconds_digits);
Dec 17 13:17:49.797 INFO [stderr]     | |__________________________________________________^
Dec 17 13:17:49.797 INFO [stderr]     |
Dec 17 13:17:49.797 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 13:17:49.797 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 17 13:17:49.798 INFO [stderr] 
Dec 17 13:17:49.798 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 13:17:49.798 INFO [stderr]    --> src/main.rs:149:9
Dec 17 13:17:49.799 INFO [stderr]     |
Dec 17 13:17:49.799 INFO [stderr] 149 | /         write!(out,
Dec 17 13:17:49.799 INFO [stderr] 150 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}Z",
Dec 17 13:17:49.799 INFO [stderr] 151 | |                time.year(),
Dec 17 13:17:49.799 INFO [stderr] 152 | |                time.month(),
Dec 17 13:17:49.800 INFO [stderr] ...   |
Dec 17 13:17:49.800 INFO [stderr] 155 | |                time.minute(),
Dec 17 13:17:49.800 INFO [stderr] 156 | |                time.second());
Dec 17 13:17:49.800 INFO [stderr]     | |______________________________^
Dec 17 13:17:49.800 INFO [stderr]     |
Dec 17 13:17:49.800 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 17 13:17:49.800 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 13:17:49.800 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 17 13:17:49.800 INFO [stderr] 
Dec 17 13:17:49.800 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 17 13:17:49.800 INFO [stderr]    --> src/main.rs:158:9
Dec 17 13:17:49.800 INFO [stderr]     |
Dec 17 13:17:49.800 INFO [stderr] 158 | /         write!(out,
Dec 17 13:17:49.800 INFO [stderr] 159 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}.{:0width$}Z",
Dec 17 13:17:49.800 INFO [stderr] 160 | |                time.year(),
Dec 17 13:17:49.800 INFO [stderr] 161 | |                time.month(),
Dec 17 13:17:49.800 INFO [stderr] ...   |
Dec 17 13:17:49.800 INFO [stderr] 166 | |                time.nanosecond(),
Dec 17 13:17:49.800 INFO [stderr] 167 | |                width = fractional_seconds_digits);
Dec 17 13:17:49.800 INFO [stderr]     | |__________________________________________________^
Dec 17 13:17:49.800 INFO [stderr]     |
Dec 17 13:17:49.800 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 17 13:17:49.800 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 17 13:17:49.800 INFO [stderr] 
Dec 17 13:17:49.836 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
Dec 17 13:17:51.349 INFO running `"docker" "inspect" "4991a0e147f13129e1a631726090711f8b75a958f079534214ccbdd80aa49fa8"`
Dec 17 13:17:51.710 INFO running `"docker" "rm" "-f" "4991a0e147f13129e1a631726090711f8b75a958f079534214ccbdd80aa49fa8"`
Dec 17 13:17:52.108 INFO [stdout] 4991a0e147f13129e1a631726090711f8b75a958f079534214ccbdd80aa49fa8