Nov 27 18:23:07.695 INFO checking tomwhoiscontrary/isots against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 27 18:23:07.696 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-5/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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"`
Nov 27 18:23:08.226 INFO [stdout] f90cfacdbc4d8e778e3af7efdbec827bbda9db2d25ebb39b4a9185b7cf08891f
Nov 27 18:23:08.228 INFO running `"docker" "start" "-a" "f90cfacdbc4d8e778e3af7efdbec827bbda9db2d25ebb39b4a9185b7cf08891f"`
Nov 27 18:23:09.766 INFO [stderr] usermod: no changes
Nov 27 18:23:09.891 INFO [stderr]     Checking isots v0.1.0 (/source)
Nov 27 18:23:10.455 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 18:23:10.456 INFO [stderr]    --> src/main.rs:149:9
Nov 27 18:23:10.456 INFO [stderr]     |
Nov 27 18:23:10.456 INFO [stderr] 149 | /         write!(out,
Nov 27 18:23:10.456 INFO [stderr] 150 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}Z",
Nov 27 18:23:10.456 INFO [stderr] 151 | |                time.year(),
Nov 27 18:23:10.456 INFO [stderr] 152 | |                time.month(),
Nov 27 18:23:10.456 INFO [stderr] ...   |
Nov 27 18:23:10.456 INFO [stderr] 155 | |                time.minute(),
Nov 27 18:23:10.456 INFO [stderr] 156 | |                time.second());
Nov 27 18:23:10.456 INFO [stderr]     | |______________________________^
Nov 27 18:23:10.456 INFO [stderr]     |
Nov 27 18:23:10.456 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 27 18:23:10.456 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 18:23:10.456 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)
Nov 27 18:23:10.456 INFO [stderr] 
Nov 27 18:23:10.456 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 18:23:10.456 INFO [stderr]    --> src/main.rs:158:9
Nov 27 18:23:10.456 INFO [stderr]     |
Nov 27 18:23:10.456 INFO [stderr] 158 | /         write!(out,
Nov 27 18:23:10.456 INFO [stderr] 159 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}.{:0width$}Z",
Nov 27 18:23:10.456 INFO [stderr] 160 | |                time.year(),
Nov 27 18:23:10.456 INFO [stderr] 161 | |                time.month(),
Nov 27 18:23:10.456 INFO [stderr] ...   |
Nov 27 18:23:10.456 INFO [stderr] 166 | |                time.nanosecond(),
Nov 27 18:23:10.456 INFO [stderr] 167 | |                width = fractional_seconds_digits);
Nov 27 18:23:10.456 INFO [stderr]     | |__________________________________________________^
Nov 27 18:23:10.456 INFO [stderr]     |
Nov 27 18:23:10.456 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 18:23:10.456 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)
Nov 27 18:23:10.456 INFO [stderr] 
Nov 27 18:23:10.589 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 18:23:10.589 INFO [stderr]    --> src/main.rs:149:9
Nov 27 18:23:10.589 INFO [stderr]     |
Nov 27 18:23:10.590 INFO [stderr] 149 | /         write!(out,
Nov 27 18:23:10.590 INFO [stderr] 150 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}Z",
Nov 27 18:23:10.590 INFO [stderr] 151 | |                time.year(),
Nov 27 18:23:10.590 INFO [stderr] 152 | |                time.month(),
Nov 27 18:23:10.591 INFO [stderr] ...   |
Nov 27 18:23:10.591 INFO [stderr] 155 | |                time.minute(),
Nov 27 18:23:10.591 INFO [stderr] 156 | |                time.second());
Nov 27 18:23:10.591 INFO [stderr]     | |______________________________^
Nov 27 18:23:10.592 INFO [stderr]     |
Nov 27 18:23:10.592 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 27 18:23:10.592 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 18:23:10.592 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)
Nov 27 18:23:10.593 INFO [stderr] 
Nov 27 18:23:10.593 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 18:23:10.593 INFO [stderr]    --> src/main.rs:158:9
Nov 27 18:23:10.594 INFO [stderr]     |
Nov 27 18:23:10.594 INFO [stderr] 158 | /         write!(out,
Nov 27 18:23:10.594 INFO [stderr] 159 | |                "{}-{:02}-{:02}T{:02}:{:02}:{:02}.{:0width$}Z",
Nov 27 18:23:10.594 INFO [stderr] 160 | |                time.year(),
Nov 27 18:23:10.595 INFO [stderr] 161 | |                time.month(),
Nov 27 18:23:10.595 INFO [stderr] ...   |
Nov 27 18:23:10.595 INFO [stderr] 166 | |                time.nanosecond(),
Nov 27 18:23:10.595 INFO [stderr] 167 | |                width = fractional_seconds_digits);
Nov 27 18:23:10.596 INFO [stderr]     | |__________________________________________________^
Nov 27 18:23:10.596 INFO [stderr]     |
Nov 27 18:23:10.596 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 18:23:10.596 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)
Nov 27 18:23:10.597 INFO [stderr] 
Nov 27 18:23:10.616 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Nov 27 18:23:10.617 INFO [stderr] su: No module specific data is present
Nov 27 18:23:11.407 INFO running `"docker" "inspect" "f90cfacdbc4d8e778e3af7efdbec827bbda9db2d25ebb39b4a9185b7cf08891f"`
Nov 27 18:23:11.701 INFO running `"docker" "rm" "-f" "f90cfacdbc4d8e778e3af7efdbec827bbda9db2d25ebb39b4a9185b7cf08891f"`
Nov 27 18:23:12.052 INFO [stdout] f90cfacdbc4d8e778e3af7efdbec827bbda9db2d25ebb39b4a9185b7cf08891f