Dec 18 05:40:16.136 INFO checking RollForGuild/RoboGM against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 05:40:16.136 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/RollForGuild/RoboGM:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 05:40:16.583 INFO [stdout] 0a37e1939d69b9866390657cf8e09282db42910ef4bdc902f511cc02475f8041
Dec 18 05:40:16.591 INFO running `"docker" "start" "-a" "0a37e1939d69b9866390657cf8e09282db42910ef4bdc902f511cc02475f8041"`
Dec 18 05:40:18.268 INFO [stderr]     Checking robo_gm v0.1.0 (/opt/crater/workdir)
Dec 18 05:40:18.688 INFO [stderr] warning: unused import: `rand::Rng`
Dec 18 05:40:18.688 INFO [stderr]  --> src/main.rs:4:5
Dec 18 05:40:18.688 INFO [stderr]   |
Dec 18 05:40:18.688 INFO [stderr] 4 | use rand::Rng;
Dec 18 05:40:18.688 INFO [stderr]   |     ^^^^^^^^^
Dec 18 05:40:18.688 INFO [stderr]   |
Dec 18 05:40:18.688 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:40:18.688 INFO [stderr] 
Dec 18 05:40:18.688 INFO [stderr] warning: unused import: `rand::Rng`
Dec 18 05:40:18.688 INFO [stderr]  --> src/main.rs:4:5
Dec 18 05:40:18.688 INFO [stderr]   |
Dec 18 05:40:18.688 INFO [stderr] 4 | use rand::Rng;
Dec 18 05:40:18.688 INFO [stderr]   |     ^^^^^^^^^
Dec 18 05:40:18.688 INFO [stderr]   |
Dec 18 05:40:18.688 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:40:18.688 INFO [stderr] 
Dec 18 05:40:18.718 INFO [stderr] warning: unused variable: `rng`
Dec 18 05:40:18.718 INFO [stderr]   --> src/main.rs:20:13
Dec 18 05:40:18.718 INFO [stderr]    |
Dec 18 05:40:18.718 INFO [stderr] 20 |     let mut rng = rand::thread_rng();
Dec 18 05:40:18.718 INFO [stderr]    |             ^^^ help: consider using `_rng` instead
Dec 18 05:40:18.718 INFO [stderr]    |
Dec 18 05:40:18.718 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:40:18.718 INFO [stderr] 
Dec 18 05:40:18.724 INFO [stderr] warning: unused variable: `rng`
Dec 18 05:40:18.724 INFO [stderr]   --> src/main.rs:20:13
Dec 18 05:40:18.724 INFO [stderr]    |
Dec 18 05:40:18.724 INFO [stderr] 20 |     let mut rng = rand::thread_rng();
Dec 18 05:40:18.724 INFO [stderr]    |             ^^^ help: consider using `_rng` instead
Dec 18 05:40:18.724 INFO [stderr]    |
Dec 18 05:40:18.724 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:40:18.724 INFO [stderr] 
Dec 18 05:40:18.724 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:40:18.724 INFO [stderr]   --> src/main.rs:20:9
Dec 18 05:40:18.724 INFO [stderr]    |
Dec 18 05:40:18.724 INFO [stderr] 20 |     let mut rng = rand::thread_rng();
Dec 18 05:40:18.724 INFO [stderr]    |         ----^^^
Dec 18 05:40:18.724 INFO [stderr]    |         |
Dec 18 05:40:18.724 INFO [stderr]    |         help: remove this `mut`
Dec 18 05:40:18.724 INFO [stderr]    |
Dec 18 05:40:18.724 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 05:40:18.724 INFO [stderr] 
Dec 18 05:40:18.724 INFO [stderr] warning: function is never used: `gen_rectangles`
Dec 18 05:40:18.724 INFO [stderr]   --> src/main.rs:34:1
Dec 18 05:40:18.724 INFO [stderr]    |
Dec 18 05:40:18.724 INFO [stderr] 34 | fn gen_rectangles() -> () {
Dec 18 05:40:18.724 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:40:18.724 INFO [stderr]    |
Dec 18 05:40:18.724 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 05:40:18.724 INFO [stderr] 
Dec 18 05:40:18.728 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:40:18.728 INFO [stderr]   --> src/main.rs:20:9
Dec 18 05:40:18.728 INFO [stderr]    |
Dec 18 05:40:18.728 INFO [stderr] 20 |     let mut rng = rand::thread_rng();
Dec 18 05:40:18.728 INFO [stderr]    |         ----^^^
Dec 18 05:40:18.728 INFO [stderr]    |         |
Dec 18 05:40:18.728 INFO [stderr]    |         help: remove this `mut`
Dec 18 05:40:18.728 INFO [stderr]    |
Dec 18 05:40:18.728 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 05:40:18.728 INFO [stderr] 
Dec 18 05:40:18.728 INFO [stderr] warning: function is never used: `gen_rectangles`
Dec 18 05:40:18.728 INFO [stderr]   --> src/main.rs:34:1
Dec 18 05:40:18.728 INFO [stderr]    |
Dec 18 05:40:18.728 INFO [stderr] 34 | fn gen_rectangles() -> () {
Dec 18 05:40:18.728 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:40:18.728 INFO [stderr]    |
Dec 18 05:40:18.728 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 05:40:18.728 INFO [stderr] 
Dec 18 05:40:18.769 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 18 05:40:19.692 INFO running `"docker" "inspect" "0a37e1939d69b9866390657cf8e09282db42910ef4bdc902f511cc02475f8041"`
Dec 18 05:40:19.910 INFO running `"docker" "rm" "-f" "0a37e1939d69b9866390657cf8e09282db42910ef4bdc902f511cc02475f8041"`
Dec 18 05:40:20.196 INFO [stdout] 0a37e1939d69b9866390657cf8e09282db42910ef4bdc902f511cc02475f8041