Dec 19 19:01:22.698 INFO checking chucksmash/pomo against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 19:01:22.699 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/chucksmash/pomo:/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 19:01:23.090 INFO [stdout] 932590682b5edd611d4d918b7fc40d99391ea7fe5af22d6bdca8da3d59b21269
Dec 19 19:01:23.092 INFO running `"docker" "start" "-a" "932590682b5edd611d4d918b7fc40d99391ea7fe5af22d6bdca8da3d59b21269"`
Dec 19 19:01:25.336 INFO [stderr]    Compiling serde_derive v1.0.79
Dec 19 19:01:36.887 INFO [stderr]     Checking pomo v0.1.0 (/opt/crater/workdir)
Dec 19 19:01:37.356 INFO [stderr] warning: unused import: `Duration`
Dec 19 19:01:37.356 INFO [stderr]   --> src/lib.rs:10:21
Dec 19 19:01:37.356 INFO [stderr]    |
Dec 19 19:01:37.356 INFO [stderr] 10 |     use std::time::{Duration, Instant};
Dec 19 19:01:37.356 INFO [stderr]    |                     ^^^^^^^^
Dec 19 19:01:37.356 INFO [stderr]    |
Dec 19 19:01:37.356 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 19:01:37.356 INFO [stderr] 
Dec 19 19:01:37.372 INFO [stderr] warning: unused import: `Duration`
Dec 19 19:01:37.372 INFO [stderr]   --> src/lib.rs:10:21
Dec 19 19:01:37.372 INFO [stderr]    |
Dec 19 19:01:37.372 INFO [stderr] 10 |     use std::time::{Duration, Instant};
Dec 19 19:01:37.372 INFO [stderr]    |                     ^^^^^^^^
Dec 19 19:01:37.372 INFO [stderr]    |
Dec 19 19:01:37.372 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 19:01:37.372 INFO [stderr] 
Dec 19 19:01:37.888 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:01:37.888 INFO [stderr]    --> src/lib.rs:175:17
Dec 19 19:01:37.888 INFO [stderr]     |
Dec 19 19:01:37.888 INFO [stderr] 175 |                 write!(self.stdout, "{}", clear::All);
Dec 19 19:01:37.888 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:01:37.888 INFO [stderr]     |
Dec 19 19:01:37.888 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 19:01:37.888 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:01:37.888 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 19:01:37.888 INFO [stderr] 
Dec 19 19:01:37.928 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 19:01:37.928 INFO [stderr]    --> src/lib.rs:175:17
Dec 19 19:01:37.928 INFO [stderr]     |
Dec 19 19:01:37.928 INFO [stderr] 175 |                 write!(self.stdout, "{}", clear::All);
Dec 19 19:01:37.928 INFO [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 19:01:37.928 INFO [stderr]     |
Dec 19 19:01:37.928 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 19:01:37.928 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 19:01:37.928 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 19:01:37.928 INFO [stderr] 
Dec 19 19:01:40.208 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.03s
Dec 19 19:01:40.907 INFO running `"docker" "inspect" "932590682b5edd611d4d918b7fc40d99391ea7fe5af22d6bdca8da3d59b21269"`
Dec 19 19:01:41.091 INFO running `"docker" "rm" "-f" "932590682b5edd611d4d918b7fc40d99391ea7fe5af22d6bdca8da3d59b21269"`
Dec 19 19:01:41.218 INFO [stdout] 932590682b5edd611d4d918b7fc40d99391ea7fe5af22d6bdca8da3d59b21269