Dec 18 05:09:20.721 INFO checking TomLingham/zaity against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 05:09:20.721 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/TomLingham/zaity:/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 18 05:09:21.192 INFO [stdout] a5d0c285283b2ac595cfa6e9d83605b2e39d2489368e68ea7f7d606576afc9e5
Dec 18 05:09:21.194 INFO running `"docker" "start" "-a" "a5d0c285283b2ac595cfa6e9d83605b2e39d2489368e68ea7f7d606576afc9e5"`
Dec 18 05:09:22.324 INFO [stderr]     Checking zaity v0.1.0 (/opt/crater/workdir)
Dec 18 05:09:22.652 INFO [stderr] warning: unused variable: `cpu_json`
Dec 18 05:09:22.652 INFO [stderr]   --> src/main.rs:23:9
Dec 18 05:09:22.652 INFO [stderr]    |
Dec 18 05:09:22.652 INFO [stderr] 23 |     let cpu_json: Value = serde_json::from_str(&json_str).unwrap();
Dec 18 05:09:22.652 INFO [stderr]    |         ^^^^^^^^ help: consider using `_cpu_json` instead
Dec 18 05:09:22.652 INFO [stderr]    |
Dec 18 05:09:22.652 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:09:22.652 INFO [stderr] 
Dec 18 05:09:22.652 INFO [stderr] warning: unused variable: `cpu_json`
Dec 18 05:09:22.652 INFO [stderr]   --> src/main.rs:23:9
Dec 18 05:09:22.652 INFO [stderr]    |
Dec 18 05:09:22.652 INFO [stderr] 23 |     let cpu_json: Value = serde_json::from_str(&json_str).unwrap();
Dec 18 05:09:22.652 INFO [stderr]    |         ^^^^^^^^ help: consider using `_cpu_json` instead
Dec 18 05:09:22.652 INFO [stderr]    |
Dec 18 05:09:22.652 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:09:22.652 INFO [stderr] 
Dec 18 05:09:22.660 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:09:22.660 INFO [stderr]   --> src/main.rs:38:5
Dec 18 05:09:22.660 INFO [stderr]    |
Dec 18 05:09:22.660 INFO [stderr] 38 |     file.read_to_end(&mut buffer);
Dec 18 05:09:22.660 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:09:22.660 INFO [stderr]    |
Dec 18 05:09:22.660 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 05:09:22.660 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:09:22.660 INFO [stderr] 
Dec 18 05:09:22.660 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 05:09:22.660 INFO [stderr]   --> src/main.rs:38:5
Dec 18 05:09:22.660 INFO [stderr]    |
Dec 18 05:09:22.660 INFO [stderr] 38 |     file.read_to_end(&mut buffer);
Dec 18 05:09:22.660 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:09:22.660 INFO [stderr]    |
Dec 18 05:09:22.660 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 05:09:22.660 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 05:09:22.660 INFO [stderr] 
Dec 18 05:09:22.691 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
Dec 18 05:09:23.006 INFO running `"docker" "inspect" "a5d0c285283b2ac595cfa6e9d83605b2e39d2489368e68ea7f7d606576afc9e5"`
Dec 18 05:09:23.098 INFO running `"docker" "rm" "-f" "a5d0c285283b2ac595cfa6e9d83605b2e39d2489368e68ea7f7d606576afc9e5"`
Dec 18 05:09:23.192 INFO [stdout] a5d0c285283b2ac595cfa6e9d83605b2e39d2489368e68ea7f7d606576afc9e5