Dec 04 22:08:24.988 INFO checking azengard/hello-rust against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 22:08:24.988 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 22:08:25.386 INFO [stdout] f3b296c9f703af5b87886ff1460f7e4cb44b7e62d3626c48b1f1bbb7bb6907ff
Dec 04 22:08:25.392 INFO running `"docker" "start" "-a" "f3b296c9f703af5b87886ff1460f7e4cb44b7e62d3626c48b1f1bbb7bb6907ff"`
Dec 04 22:08:26.466 INFO [stderr] usermod: no changes
Dec 04 22:08:26.555 INFO [stderr]     Checking hello-rust v0.1.0 (/source)
Dec 04 22:08:27.210 INFO [stderr] warning: struct is never constructed: `Nil`
Dec 04 22:08:27.210 INFO [stderr]   --> src/main.rs:80:1
Dec 04 22:08:27.210 INFO [stderr]    |
Dec 04 22:08:27.210 INFO [stderr] 80 | struct Nil; // unit struct
Dec 04 22:08:27.210 INFO [stderr]    | ^^^^^^^^^^^
Dec 04 22:08:27.210 INFO [stderr]    |
Dec 04 22:08:27.210 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 22:08:27.210 INFO [stderr] 
Dec 04 22:08:27.210 INFO [stderr] warning: struct is never constructed: `Pair`
Dec 04 22:08:27.210 INFO [stderr]   --> src/main.rs:82:1
Dec 04 22:08:27.210 INFO [stderr]    |
Dec 04 22:08:27.210 INFO [stderr] 82 | struct Pair(i32, f32); //tuple struct
Dec 04 22:08:27.210 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 22:08:27.210 INFO [stderr] 
Dec 04 22:08:27.378 INFO [stderr] warning: struct is never constructed: `Nil`
Dec 04 22:08:27.379 INFO [stderr]   --> src/main.rs:80:1
Dec 04 22:08:27.379 INFO [stderr]    |
Dec 04 22:08:27.379 INFO [stderr] 80 | struct Nil; // unit struct
Dec 04 22:08:27.379 INFO [stderr]    | ^^^^^^^^^^^
Dec 04 22:08:27.379 INFO [stderr]    |
Dec 04 22:08:27.379 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 22:08:27.379 INFO [stderr] 
Dec 04 22:08:27.379 INFO [stderr] warning: struct is never constructed: `Pair`
Dec 04 22:08:27.379 INFO [stderr]   --> src/main.rs:82:1
Dec 04 22:08:27.379 INFO [stderr]    |
Dec 04 22:08:27.379 INFO [stderr] 82 | struct Pair(i32, f32); //tuple struct
Dec 04 22:08:27.379 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
Dec 04 22:08:27.379 INFO [stderr] 
Dec 04 22:08:27.413 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
Dec 04 22:08:27.414 INFO [stderr] su: No module specific data is present
Dec 04 22:08:28.099 INFO running `"docker" "inspect" "f3b296c9f703af5b87886ff1460f7e4cb44b7e62d3626c48b1f1bbb7bb6907ff"`
Dec 04 22:08:28.317 INFO running `"docker" "rm" "-f" "f3b296c9f703af5b87886ff1460f7e4cb44b7e62d3626c48b1f1bbb7bb6907ff"`
Dec 04 22:08:28.527 INFO [stdout] f3b296c9f703af5b87886ff1460f7e4cb44b7e62d3626c48b1f1bbb7bb6907ff