Dec 04 20:55:21.406 INFO checking chyld/rust-examples against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 20:55:21.406 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 20:55:21.711 INFO [stdout] 028e2da3e1f04b0c6f31a3c3f703239c1b1c6647bf7d0914ad7a73ffeff3622c
Dec 04 20:55:21.719 INFO running `"docker" "start" "-a" "028e2da3e1f04b0c6f31a3c3f703239c1b1c6647bf7d0914ad7a73ffeff3622c"`
Dec 04 20:55:22.730 INFO [stderr] usermod: no changes
Dec 04 20:55:22.787 INFO [stderr]     Checking rust-examples v0.1.0 (/source)
Dec 04 20:55:23.215 INFO [stderr] warning: unused variable: `a`
Dec 04 20:55:23.215 INFO [stderr]   --> src/main.rs:38:9
Dec 04 20:55:23.215 INFO [stderr]    |
Dec 04 20:55:23.215 INFO [stderr] 38 |     let a = Nil;
Dec 04 20:55:23.215 INFO [stderr]    |         ^ help: consider using `_a` instead
Dec 04 20:55:23.215 INFO [stderr]    |
Dec 04 20:55:23.215 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 20:55:23.215 INFO [stderr] 
Dec 04 20:55:23.215 INFO [stderr] warning: unused variable: `b`
Dec 04 20:55:23.215 INFO [stderr]   --> src/main.rs:39:9
Dec 04 20:55:23.215 INFO [stderr]    |
Dec 04 20:55:23.215 INFO [stderr] 39 |     let b = Pair(3, 5.2);
Dec 04 20:55:23.215 INFO [stderr]    |         ^ help: consider using `_b` instead
Dec 04 20:55:23.215 INFO [stderr] 
Dec 04 20:55:23.215 INFO [stderr] warning: unused variable: `c`
Dec 04 20:55:23.215 INFO [stderr]   --> src/main.rs:40:9
Dec 04 20:55:23.215 INFO [stderr]    |
Dec 04 20:55:23.215 INFO [stderr] 40 |     let c = Point {x: 4, y: 2.5};
Dec 04 20:55:23.215 INFO [stderr]    |         ^ help: consider using `_c` instead
Dec 04 20:55:23.215 INFO [stderr] 
Dec 04 20:55:23.215 INFO [stderr] warning: unused variable: `b`
Dec 04 20:55:23.215 INFO [stderr]   --> src/main.rs:60:9
Dec 04 20:55:23.215 INFO [stderr]    |
Dec 04 20:55:23.215 INFO [stderr] 60 |     let b: [u64; 10];   // u64 - 10 random values
Dec 04 20:55:23.215 INFO [stderr]    |         ^ help: consider using `_b` instead
Dec 04 20:55:23.215 INFO [stderr] 
Dec 04 20:55:23.227 INFO [stderr] warning: field is never used: `x`
Dec 04 20:55:23.227 INFO [stderr]   --> src/main.rs:17:5
Dec 04 20:55:23.227 INFO [stderr]    |
Dec 04 20:55:23.227 INFO [stderr] 17 |     x: u8,
Dec 04 20:55:23.227 INFO [stderr]    |     ^^^^^
Dec 04 20:55:23.227 INFO [stderr]    |
Dec 04 20:55:23.227 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 20:55:23.227 INFO [stderr] 
Dec 04 20:55:23.227 INFO [stderr] warning: field is never used: `y`
Dec 04 20:55:23.227 INFO [stderr]   --> src/main.rs:18:5
Dec 04 20:55:23.227 INFO [stderr]    |
Dec 04 20:55:23.227 INFO [stderr] 18 |     y: f32,
Dec 04 20:55:23.227 INFO [stderr]    |     ^^^^^^
Dec 04 20:55:23.227 INFO [stderr] 
Dec 04 20:55:23.535 INFO [stderr] warning: unused variable: `a`
Dec 04 20:55:23.535 INFO [stderr]   --> src/main.rs:38:9
Dec 04 20:55:23.535 INFO [stderr]    |
Dec 04 20:55:23.535 INFO [stderr] 38 |     let a = Nil;
Dec 04 20:55:23.535 INFO [stderr]    |         ^ help: consider using `_a` instead
Dec 04 20:55:23.535 INFO [stderr]    |
Dec 04 20:55:23.535 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 20:55:23.535 INFO [stderr] 
Dec 04 20:55:23.535 INFO [stderr] warning: unused variable: `b`
Dec 04 20:55:23.535 INFO [stderr]   --> src/main.rs:39:9
Dec 04 20:55:23.535 INFO [stderr]    |
Dec 04 20:55:23.535 INFO [stderr] 39 |     let b = Pair(3, 5.2);
Dec 04 20:55:23.535 INFO [stderr]    |         ^ help: consider using `_b` instead
Dec 04 20:55:23.535 INFO [stderr] 
Dec 04 20:55:23.535 INFO [stderr] warning: unused variable: `c`
Dec 04 20:55:23.535 INFO [stderr]   --> src/main.rs:40:9
Dec 04 20:55:23.535 INFO [stderr]    |
Dec 04 20:55:23.535 INFO [stderr] 40 |     let c = Point {x: 4, y: 2.5};
Dec 04 20:55:23.535 INFO [stderr]    |         ^ help: consider using `_c` instead
Dec 04 20:55:23.535 INFO [stderr] 
Dec 04 20:55:23.535 INFO [stderr] warning: unused variable: `b`
Dec 04 20:55:23.535 INFO [stderr]   --> src/main.rs:60:9
Dec 04 20:55:23.535 INFO [stderr]    |
Dec 04 20:55:23.535 INFO [stderr] 60 |     let b: [u64; 10];   // u64 - 10 random values
Dec 04 20:55:23.535 INFO [stderr]    |         ^ help: consider using `_b` instead
Dec 04 20:55:23.535 INFO [stderr] 
Dec 04 20:55:23.543 INFO [stderr] warning: field is never used: `x`
Dec 04 20:55:23.543 INFO [stderr]   --> src/main.rs:17:5
Dec 04 20:55:23.543 INFO [stderr]    |
Dec 04 20:55:23.543 INFO [stderr] 17 |     x: u8,
Dec 04 20:55:23.543 INFO [stderr]    |     ^^^^^
Dec 04 20:55:23.543 INFO [stderr]    |
Dec 04 20:55:23.543 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 04 20:55:23.543 INFO [stderr] 
Dec 04 20:55:23.543 INFO [stderr] warning: field is never used: `y`
Dec 04 20:55:23.543 INFO [stderr]   --> src/main.rs:18:5
Dec 04 20:55:23.543 INFO [stderr]    |
Dec 04 20:55:23.543 INFO [stderr] 18 |     y: f32,
Dec 04 20:55:23.543 INFO [stderr]    |     ^^^^^^
Dec 04 20:55:23.543 INFO [stderr] 
Dec 04 20:55:23.546 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
Dec 04 20:55:23.548 INFO [stderr] su: No module specific data is present
Dec 04 20:55:24.016 INFO running `"docker" "inspect" "028e2da3e1f04b0c6f31a3c3f703239c1b1c6647bf7d0914ad7a73ffeff3622c"`
Dec 04 20:55:24.393 INFO running `"docker" "rm" "-f" "028e2da3e1f04b0c6f31a3c3f703239c1b1c6647bf7d0914ad7a73ffeff3622c"`
Dec 04 20:55:24.607 INFO [stdout] 028e2da3e1f04b0c6f31a3c3f703239c1b1c6647bf7d0914ad7a73ffeff3622c