Dec 11 13:35:24.613 INFO checking mike706574/rust-json-file-deserialization-example against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 13:35:24.613 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 13:35:25.150 INFO [stdout] 6ffd7998f441bff570e9edb9a6a9cb5c7ecd4f8f9e7e430c4ba7bf0f13457c0e
Dec 11 13:35:25.156 INFO running `"docker" "start" "-a" "6ffd7998f441bff570e9edb9a6a9cb5c7ecd4f8f9e7e430c4ba7bf0f13457c0e"`
Dec 11 13:35:25.856 INFO [stderr] usermod: no changes
Dec 11 13:35:25.982 INFO [stderr]     Checking foo v0.1.0 (/source)
Dec 11 13:35:26.676 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 13:35:26.676 INFO [stderr]   --> src/main.rs:26:5
Dec 11 13:35:26.676 INFO [stderr]    |
Dec 11 13:35:26.676 INFO [stderr] 26 |     example();
Dec 11 13:35:26.676 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 13:35:26.676 INFO [stderr]    |
Dec 11 13:35:26.676 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 13:35:26.676 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 13:35:26.676 INFO [stderr] 
Dec 11 13:35:26.728 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 13:35:26.728 INFO [stderr]   --> src/main.rs:26:5
Dec 11 13:35:26.728 INFO [stderr]    |
Dec 11 13:35:26.728 INFO [stderr] 26 |     example();
Dec 11 13:35:26.728 INFO [stderr]    |     ^^^^^^^^^^
Dec 11 13:35:26.728 INFO [stderr]    |
Dec 11 13:35:26.728 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 13:35:26.728 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 13:35:26.728 INFO [stderr] 
Dec 11 13:35:26.765 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
Dec 11 13:35:26.784 INFO [stderr] su: No module specific data is present
Dec 11 13:35:27.536 INFO running `"docker" "inspect" "6ffd7998f441bff570e9edb9a6a9cb5c7ecd4f8f9e7e430c4ba7bf0f13457c0e"`
Dec 11 13:35:27.788 INFO running `"docker" "rm" "-f" "6ffd7998f441bff570e9edb9a6a9cb5c7ecd4f8f9e7e430c4ba7bf0f13457c0e"`
Dec 11 13:35:28.166 INFO [stdout] 6ffd7998f441bff570e9edb9a6a9cb5c7ecd4f8f9e7e430c4ba7bf0f13457c0e