Dec 11 23:54:48.381 INFO checking TomLingham/zaity against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 23:54:48.381 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 23:54:48.832 INFO [stdout] 796feab52a9af407b715c9a4ec94dd7d3e2ecd946ee10f1539a5a52c6848a080
Dec 11 23:54:48.834 INFO running `"docker" "start" "-a" "796feab52a9af407b715c9a4ec94dd7d3e2ecd946ee10f1539a5a52c6848a080"`
Dec 11 23:54:49.781 INFO [stderr] usermod: no changes
Dec 11 23:54:49.868 INFO [stderr]     Checking serde_json v1.0.2
Dec 11 23:54:52.322 INFO [stderr]     Checking zaity v0.1.0 (/source)
Dec 11 23:54:53.288 INFO [stderr] warning: unused variable: `cpu_json`
Dec 11 23:54:53.288 INFO [stderr]   --> src/main.rs:23:9
Dec 11 23:54:53.288 INFO [stderr]    |
Dec 11 23:54:53.288 INFO [stderr] 23 |     let cpu_json: Value = serde_json::from_str(&json_str).unwrap();
Dec 11 23:54:53.288 INFO [stderr]    |         ^^^^^^^^ help: consider using `_cpu_json` instead
Dec 11 23:54:53.288 INFO [stderr]    |
Dec 11 23:54:53.288 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 23:54:53.288 INFO [stderr] 
Dec 11 23:54:53.304 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 23:54:53.304 INFO [stderr]   --> src/main.rs:38:5
Dec 11 23:54:53.304 INFO [stderr]    |
Dec 11 23:54:53.304 INFO [stderr] 38 |     file.read_to_end(&mut buffer);
Dec 11 23:54:53.304 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:54:53.304 INFO [stderr]    |
Dec 11 23:54:53.304 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 23:54:53.304 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 23:54:53.304 INFO [stderr] 
Dec 11 23:54:53.516 INFO [stderr] warning: unused variable: `cpu_json`
Dec 11 23:54:53.516 INFO [stderr]   --> src/main.rs:23:9
Dec 11 23:54:53.516 INFO [stderr]    |
Dec 11 23:54:53.516 INFO [stderr] 23 |     let cpu_json: Value = serde_json::from_str(&json_str).unwrap();
Dec 11 23:54:53.516 INFO [stderr]    |         ^^^^^^^^ help: consider using `_cpu_json` instead
Dec 11 23:54:53.516 INFO [stderr]    |
Dec 11 23:54:53.516 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 23:54:53.516 INFO [stderr] 
Dec 11 23:54:53.519 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 23:54:53.519 INFO [stderr]   --> src/main.rs:38:5
Dec 11 23:54:53.519 INFO [stderr]    |
Dec 11 23:54:53.519 INFO [stderr] 38 |     file.read_to_end(&mut buffer);
Dec 11 23:54:53.519 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 23:54:53.519 INFO [stderr]    |
Dec 11 23:54:53.519 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 23:54:53.519 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 23:54:53.519 INFO [stderr] 
Dec 11 23:54:53.560 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.74s
Dec 11 23:54:53.563 INFO [stderr] su: No module specific data is present
Dec 11 23:54:54.532 INFO running `"docker" "inspect" "796feab52a9af407b715c9a4ec94dd7d3e2ecd946ee10f1539a5a52c6848a080"`
Dec 11 23:54:54.810 INFO running `"docker" "rm" "-f" "796feab52a9af407b715c9a4ec94dd7d3e2ecd946ee10f1539a5a52c6848a080"`
Dec 11 23:54:55.053 INFO [stdout] 796feab52a9af407b715c9a4ec94dd7d3e2ecd946ee10f1539a5a52c6848a080