Dec 19 06:49:19.156 INFO checking tomwhoiscontrary/isots against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 06:49:19.156 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 06:49:19.656 INFO [stdout] 24ff20e4fa4c0517d699671841b7326ce9a34ec23173ee88e1b5d9d580213e6a
Dec 19 06:49:19.658 INFO running `"docker" "start" "-a" "24ff20e4fa4c0517d699671841b7326ce9a34ec23173ee88e1b5d9d580213e6a"`
Dec 19 06:49:22.172 INFO [stderr]     Checking isots v0.1.0 (/opt/crater/workdir)
Dec 19 06:49:22.630 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 06:49:22.631 INFO [stderr]    --> src/main.rs:149:9
Dec 19 06:49:22.631 INFO [stderr]     |
Dec 19 06:49:22.631 INFO [stderr] 149 | /         write!(out,
Dec 19 06:49:22.631 INFO [stderr] 150 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}Z",
Dec 19 06:49:22.632 INFO [stderr] 151 | |                time.year(),
Dec 19 06:49:22.632 INFO [stderr] 152 | |                time.month(),
Dec 19 06:49:22.632 INFO [stderr] ...   |
Dec 19 06:49:22.632 INFO [stderr] 155 | |                time.minute(),
Dec 19 06:49:22.633 INFO [stderr] 156 | |                time.second());
Dec 19 06:49:22.633 INFO [stderr]     | |______________________________^
Dec 19 06:49:22.633 INFO [stderr]     |
Dec 19 06:49:22.633 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 06:49:22.634 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:49:22.634 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 19 06:49:22.634 INFO [stderr] 
Dec 19 06:49:22.648 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 06:49:22.648 INFO [stderr]    --> src/main.rs:158:9
Dec 19 06:49:22.649 INFO [stderr]     |
Dec 19 06:49:22.649 INFO [stderr] 158 | /         write!(out,
Dec 19 06:49:22.649 INFO [stderr] 159 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}.{:0width$}Z",
Dec 19 06:49:22.649 INFO [stderr] 160 | |                time.year(),
Dec 19 06:49:22.650 INFO [stderr] 161 | |                time.month(),
Dec 19 06:49:22.650 INFO [stderr] ...   |
Dec 19 06:49:22.650 INFO [stderr] 166 | |                time.nanosecond(),
Dec 19 06:49:22.650 INFO [stderr] 167 | |                width = fractional_seconds_digits);
Dec 19 06:49:22.650 INFO [stderr]     | |__________________________________________________^
Dec 19 06:49:22.650 INFO [stderr]     |
Dec 19 06:49:22.650 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:49:22.650 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 19 06:49:22.650 INFO [stderr] 
Dec 19 06:49:22.668 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 06:49:22.668 INFO [stderr]    --> src/main.rs:149:9
Dec 19 06:49:22.668 INFO [stderr]     |
Dec 19 06:49:22.668 INFO [stderr] 149 | /         write!(out,
Dec 19 06:49:22.668 INFO [stderr] 150 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}Z",
Dec 19 06:49:22.668 INFO [stderr] 151 | |                time.year(),
Dec 19 06:49:22.668 INFO [stderr] 152 | |                time.month(),
Dec 19 06:49:22.668 INFO [stderr] ...   |
Dec 19 06:49:22.668 INFO [stderr] 155 | |                time.minute(),
Dec 19 06:49:22.668 INFO [stderr] 156 | |                time.second());
Dec 19 06:49:22.668 INFO [stderr]     | |______________________________^
Dec 19 06:49:22.668 INFO [stderr]     |
Dec 19 06:49:22.668 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 06:49:22.668 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:49:22.668 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 19 06:49:22.668 INFO [stderr] 
Dec 19 06:49:22.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 06:49:22.684 INFO [stderr]    --> src/main.rs:158:9
Dec 19 06:49:22.684 INFO [stderr]     |
Dec 19 06:49:22.684 INFO [stderr] 158 | /         write!(out,
Dec 19 06:49:22.684 INFO [stderr] 159 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}.{:0width$}Z",
Dec 19 06:49:22.684 INFO [stderr] 160 | |                time.year(),
Dec 19 06:49:22.684 INFO [stderr] 161 | |                time.month(),
Dec 19 06:49:22.684 INFO [stderr] ...   |
Dec 19 06:49:22.684 INFO [stderr] 166 | |                time.nanosecond(),
Dec 19 06:49:22.684 INFO [stderr] 167 | |                width = fractional_seconds_digits);
Dec 19 06:49:22.684 INFO [stderr]     | |__________________________________________________^
Dec 19 06:49:22.685 INFO [stderr]     |
Dec 19 06:49:22.685 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 06:49:22.685 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 19 06:49:22.685 INFO [stderr] 
Dec 19 06:49:22.756 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
Dec 19 06:49:24.013 INFO running `"docker" "inspect" "24ff20e4fa4c0517d699671841b7326ce9a34ec23173ee88e1b5d9d580213e6a"`
Dec 19 06:49:24.314 INFO running `"docker" "rm" "-f" "24ff20e4fa4c0517d699671841b7326ce9a34ec23173ee88e1b5d9d580213e6a"`
Dec 19 06:49:24.593 INFO [stdout] 24ff20e4fa4c0517d699671841b7326ce9a34ec23173ee88e1b5d9d580213e6a