Dec 04 08:18:19.700 INFO checking tomwhoiscontrary/isots against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 08:18:19.700 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 04 08:18:20.143 INFO [stdout] 7f21c89c8a785b8e49db7a23844abb5f37bee6cae5ad099b9e7a1e17878ba234
Dec 04 08:18:20.151 INFO running `"docker" "start" "-a" "7f21c89c8a785b8e49db7a23844abb5f37bee6cae5ad099b9e7a1e17878ba234"`
Dec 04 08:18:21.395 INFO [stderr] usermod: no changes
Dec 04 08:18:21.519 INFO [stderr]     Checking isots v0.1.0 (/source)
Dec 04 08:18:22.063 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 08:18:22.063 INFO [stderr]    --> src/main.rs:149:9
Dec 04 08:18:22.063 INFO [stderr]     |
Dec 04 08:18:22.063 INFO [stderr] 149 | /         write!(out,
Dec 04 08:18:22.063 INFO [stderr] 150 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}Z",
Dec 04 08:18:22.063 INFO [stderr] 151 | |                time.year(),
Dec 04 08:18:22.063 INFO [stderr] 152 | |                time.month(),
Dec 04 08:18:22.063 INFO [stderr] ...   |
Dec 04 08:18:22.063 INFO [stderr] 155 | |                time.minute(),
Dec 04 08:18:22.063 INFO [stderr] 156 | |                time.second());
Dec 04 08:18:22.063 INFO [stderr]     | |______________________________^
Dec 04 08:18:22.063 INFO [stderr]     |
Dec 04 08:18:22.063 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 08:18:22.063 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 08:18:22.063 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 04 08:18:22.063 INFO [stderr] 
Dec 04 08:18:22.063 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 08:18:22.063 INFO [stderr]    --> src/main.rs:158:9
Dec 04 08:18:22.063 INFO [stderr]     |
Dec 04 08:18:22.063 INFO [stderr] 158 | /         write!(out,
Dec 04 08:18:22.063 INFO [stderr] 159 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}.{:0width$}Z",
Dec 04 08:18:22.063 INFO [stderr] 160 | |                time.year(),
Dec 04 08:18:22.063 INFO [stderr] 161 | |                time.month(),
Dec 04 08:18:22.063 INFO [stderr] ...   |
Dec 04 08:18:22.063 INFO [stderr] 166 | |                time.nanosecond(),
Dec 04 08:18:22.063 INFO [stderr] 167 | |                width = fractional_seconds_digits);
Dec 04 08:18:22.063 INFO [stderr]     | |__________________________________________________^
Dec 04 08:18:22.063 INFO [stderr]     |
Dec 04 08:18:22.063 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 08:18:22.063 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 04 08:18:22.063 INFO [stderr] 
Dec 04 08:18:22.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 08:18:22.139 INFO [stderr]    --> src/main.rs:149:9
Dec 04 08:18:22.139 INFO [stderr]     |
Dec 04 08:18:22.139 INFO [stderr] 149 | /         write!(out,
Dec 04 08:18:22.139 INFO [stderr] 150 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}Z",
Dec 04 08:18:22.139 INFO [stderr] 151 | |                time.year(),
Dec 04 08:18:22.139 INFO [stderr] 152 | |                time.month(),
Dec 04 08:18:22.139 INFO [stderr] ...   |
Dec 04 08:18:22.139 INFO [stderr] 155 | |                time.minute(),
Dec 04 08:18:22.139 INFO [stderr] 156 | |                time.second());
Dec 04 08:18:22.139 INFO [stderr]     | |______________________________^
Dec 04 08:18:22.139 INFO [stderr]     |
Dec 04 08:18:22.139 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 08:18:22.139 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 08:18:22.139 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 04 08:18:22.139 INFO [stderr] 
Dec 04 08:18:22.139 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 08:18:22.139 INFO [stderr]    --> src/main.rs:158:9
Dec 04 08:18:22.139 INFO [stderr]     |
Dec 04 08:18:22.139 INFO [stderr] 158 | /         write!(out,
Dec 04 08:18:22.139 INFO [stderr] 159 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}.{:0width$}Z",
Dec 04 08:18:22.139 INFO [stderr] 160 | |                time.year(),
Dec 04 08:18:22.139 INFO [stderr] 161 | |                time.month(),
Dec 04 08:18:22.139 INFO [stderr] ...   |
Dec 04 08:18:22.139 INFO [stderr] 166 | |                time.nanosecond(),
Dec 04 08:18:22.139 INFO [stderr] 167 | |                width = fractional_seconds_digits);
Dec 04 08:18:22.139 INFO [stderr]     | |__________________________________________________^
Dec 04 08:18:22.139 INFO [stderr]     |
Dec 04 08:18:22.139 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 08:18:22.139 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 04 08:18:22.139 INFO [stderr] 
Dec 04 08:18:22.164 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.75s
Dec 04 08:18:22.167 INFO [stderr] su: No module specific data is present
Dec 04 08:18:23.101 INFO running `"docker" "inspect" "7f21c89c8a785b8e49db7a23844abb5f37bee6cae5ad099b9e7a1e17878ba234"`
Dec 04 08:18:23.339 INFO running `"docker" "rm" "-f" "7f21c89c8a785b8e49db7a23844abb5f37bee6cae5ad099b9e7a1e17878ba234"`
Dec 04 08:18:23.607 INFO [stdout] 7f21c89c8a785b8e49db7a23844abb5f37bee6cae5ad099b9e7a1e17878ba234