Dec 05 00:21:01.581 INFO checking RollForGuild/RoboGM against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 00:21:01.582 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 05 00:21:02.023 INFO [stdout] efeacdc6ec3d5fb313b96c81d617364e7df189980942af178b11aceceff34296
Dec 05 00:21:02.031 INFO running `"docker" "start" "-a" "efeacdc6ec3d5fb313b96c81d617364e7df189980942af178b11aceceff34296"`
Dec 05 00:21:04.259 INFO [stderr] usermod: no changes
Dec 05 00:21:04.363 INFO [stderr]     Checking robo_gm v0.1.0 (/source)
Dec 05 00:21:05.203 INFO [stderr] warning: unused import: `rand::Rng`
Dec 05 00:21:05.203 INFO [stderr]  --> src/main.rs:4:5
Dec 05 00:21:05.203 INFO [stderr]   |
Dec 05 00:21:05.203 INFO [stderr] 4 | use rand::Rng;
Dec 05 00:21:05.203 INFO [stderr]   |     ^^^^^^^^^
Dec 05 00:21:05.203 INFO [stderr]   |
Dec 05 00:21:05.203 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 00:21:05.203 INFO [stderr] 
Dec 05 00:21:05.279 INFO [stderr] warning: unused import: `rand::Rng`
Dec 05 00:21:05.279 INFO [stderr]  --> src/main.rs:4:5
Dec 05 00:21:05.279 INFO [stderr]   |
Dec 05 00:21:05.279 INFO [stderr] 4 | use rand::Rng;
Dec 05 00:21:05.279 INFO [stderr]   |     ^^^^^^^^^
Dec 05 00:21:05.279 INFO [stderr]   |
Dec 05 00:21:05.279 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 00:21:05.279 INFO [stderr] 
Dec 05 00:21:05.281 INFO [stderr] warning: unused variable: `rng`
Dec 05 00:21:05.281 INFO [stderr]   --> src/main.rs:20:13
Dec 05 00:21:05.281 INFO [stderr]    |
Dec 05 00:21:05.281 INFO [stderr] 20 |     let mut rng = rand::thread_rng();
Dec 05 00:21:05.281 INFO [stderr]    |             ^^^ help: consider using `_rng` instead
Dec 05 00:21:05.282 INFO [stderr]    |
Dec 05 00:21:05.282 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 00:21:05.282 INFO [stderr] 
Dec 05 00:21:05.289 INFO [stderr] warning: variable does not need to be mutable
Dec 05 00:21:05.289 INFO [stderr]   --> src/main.rs:20:9
Dec 05 00:21:05.289 INFO [stderr]    |
Dec 05 00:21:05.289 INFO [stderr] 20 |     let mut rng = rand::thread_rng();
Dec 05 00:21:05.289 INFO [stderr]    |         ----^^^
Dec 05 00:21:05.289 INFO [stderr]    |         |
Dec 05 00:21:05.289 INFO [stderr]    |         help: remove this `mut`
Dec 05 00:21:05.289 INFO [stderr]    |
Dec 05 00:21:05.289 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 00:21:05.289 INFO [stderr] 
Dec 05 00:21:05.295 INFO [stderr] warning: function is never used: `gen_rectangles`
Dec 05 00:21:05.295 INFO [stderr]   --> src/main.rs:34:1
Dec 05 00:21:05.295 INFO [stderr]    |
Dec 05 00:21:05.295 INFO [stderr] 34 | fn gen_rectangles() -> () {
Dec 05 00:21:05.295 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:21:05.295 INFO [stderr]    |
Dec 05 00:21:05.295 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 00:21:05.295 INFO [stderr] 
Dec 05 00:21:05.327 INFO [stderr] warning: unused variable: `rng`
Dec 05 00:21:05.327 INFO [stderr]   --> src/main.rs:20:13
Dec 05 00:21:05.327 INFO [stderr]    |
Dec 05 00:21:05.327 INFO [stderr] 20 |     let mut rng = rand::thread_rng();
Dec 05 00:21:05.327 INFO [stderr]    |             ^^^ help: consider using `_rng` instead
Dec 05 00:21:05.327 INFO [stderr]    |
Dec 05 00:21:05.327 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 00:21:05.327 INFO [stderr] 
Dec 05 00:21:05.330 INFO [stderr] warning: variable does not need to be mutable
Dec 05 00:21:05.330 INFO [stderr]   --> src/main.rs:20:9
Dec 05 00:21:05.330 INFO [stderr]    |
Dec 05 00:21:05.330 INFO [stderr] 20 |     let mut rng = rand::thread_rng();
Dec 05 00:21:05.330 INFO [stderr]    |         ----^^^
Dec 05 00:21:05.330 INFO [stderr]    |         |
Dec 05 00:21:05.330 INFO [stderr]    |         help: remove this `mut`
Dec 05 00:21:05.330 INFO [stderr]    |
Dec 05 00:21:05.330 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 00:21:05.330 INFO [stderr] 
Dec 05 00:21:05.331 INFO [stderr] warning: function is never used: `gen_rectangles`
Dec 05 00:21:05.331 INFO [stderr]   --> src/main.rs:34:1
Dec 05 00:21:05.331 INFO [stderr]    |
Dec 05 00:21:05.331 INFO [stderr] 34 | fn gen_rectangles() -> () {
Dec 05 00:21:05.331 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:21:05.331 INFO [stderr]    |
Dec 05 00:21:05.331 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 00:21:05.331 INFO [stderr] 
Dec 05 00:21:05.355 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
Dec 05 00:21:05.355 INFO [stderr] su: No module specific data is present
Dec 05 00:21:06.517 INFO running `"docker" "inspect" "efeacdc6ec3d5fb313b96c81d617364e7df189980942af178b11aceceff34296"`
Dec 05 00:21:06.877 INFO running `"docker" "rm" "-f" "efeacdc6ec3d5fb313b96c81d617364e7df189980942af178b11aceceff34296"`
Dec 05 00:21:07.198 INFO [stdout] efeacdc6ec3d5fb313b96c81d617364e7df189980942af178b11aceceff34296