Dec 18 05:40:16.516 INFO checking RollForGuild/RoboGM against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 05:40:16.516 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 05:40:16.900 INFO [stdout] f220ba68a1bf7257b7b76f9c1661d33024ab428bd2571f20393e30d27dca848f
Dec 18 05:40:16.904 INFO running `"docker" "start" "-a" "f220ba68a1bf7257b7b76f9c1661d33024ab428bd2571f20393e30d27dca848f"`
Dec 18 05:40:18.617 INFO [stderr]     Checking robo_gm v0.1.0 (/opt/crater/workdir)
Dec 18 05:40:19.032 INFO [stderr] warning: unused import: `rand::Rng`
Dec 18 05:40:19.032 INFO [stderr]  --> src/main.rs:4:5
Dec 18 05:40:19.032 INFO [stderr]   |
Dec 18 05:40:19.032 INFO [stderr] 4 | use rand::Rng;
Dec 18 05:40:19.032 INFO [stderr]   |     ^^^^^^^^^
Dec 18 05:40:19.032 INFO [stderr]   |
Dec 18 05:40:19.032 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:40:19.032 INFO [stderr] 
Dec 18 05:40:19.092 INFO [stderr] warning: unused variable: `rng`
Dec 18 05:40:19.092 INFO [stderr]   --> src/main.rs:20:13
Dec 18 05:40:19.092 INFO [stderr]    |
Dec 18 05:40:19.092 INFO [stderr] 20 |     let mut rng = rand::thread_rng();
Dec 18 05:40:19.092 INFO [stderr]    |             ^^^ help: consider using `_rng` instead
Dec 18 05:40:19.092 INFO [stderr]    |
Dec 18 05:40:19.092 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:40:19.092 INFO [stderr] 
Dec 18 05:40:19.099 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:40:19.099 INFO [stderr]   --> src/main.rs:20:9
Dec 18 05:40:19.099 INFO [stderr]    |
Dec 18 05:40:19.099 INFO [stderr] 20 |     let mut rng = rand::thread_rng();
Dec 18 05:40:19.099 INFO [stderr]    |         ----^^^
Dec 18 05:40:19.099 INFO [stderr]    |         |
Dec 18 05:40:19.099 INFO [stderr]    |         help: remove this `mut`
Dec 18 05:40:19.099 INFO [stderr]    |
Dec 18 05:40:19.099 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 05:40:19.099 INFO [stderr] 
Dec 18 05:40:19.104 INFO [stderr] warning: function is never used: `gen_rectangles`
Dec 18 05:40:19.104 INFO [stderr]   --> src/main.rs:34:1
Dec 18 05:40:19.104 INFO [stderr]    |
Dec 18 05:40:19.104 INFO [stderr] 34 | fn gen_rectangles() -> () {
Dec 18 05:40:19.104 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:40:19.104 INFO [stderr]    |
Dec 18 05:40:19.104 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 05:40:19.104 INFO [stderr] 
Dec 18 05:40:19.192 INFO [stderr] warning: unused import: `rand::Rng`
Dec 18 05:40:19.192 INFO [stderr]  --> src/main.rs:4:5
Dec 18 05:40:19.192 INFO [stderr]   |
Dec 18 05:40:19.192 INFO [stderr] 4 | use rand::Rng;
Dec 18 05:40:19.192 INFO [stderr]   |     ^^^^^^^^^
Dec 18 05:40:19.192 INFO [stderr]   |
Dec 18 05:40:19.192 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 05:40:19.192 INFO [stderr] 
Dec 18 05:40:19.236 INFO [stderr] warning: unused variable: `rng`
Dec 18 05:40:19.236 INFO [stderr]   --> src/main.rs:20:13
Dec 18 05:40:19.236 INFO [stderr]    |
Dec 18 05:40:19.236 INFO [stderr] 20 |     let mut rng = rand::thread_rng();
Dec 18 05:40:19.236 INFO [stderr]    |             ^^^ help: consider using `_rng` instead
Dec 18 05:40:19.236 INFO [stderr]    |
Dec 18 05:40:19.236 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 05:40:19.236 INFO [stderr] 
Dec 18 05:40:19.247 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:40:19.247 INFO [stderr]   --> src/main.rs:20:9
Dec 18 05:40:19.247 INFO [stderr]    |
Dec 18 05:40:19.247 INFO [stderr] 20 |     let mut rng = rand::thread_rng();
Dec 18 05:40:19.247 INFO [stderr]    |         ----^^^
Dec 18 05:40:19.247 INFO [stderr]    |         |
Dec 18 05:40:19.247 INFO [stderr]    |         help: remove this `mut`
Dec 18 05:40:19.247 INFO [stderr]    |
Dec 18 05:40:19.247 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 05:40:19.247 INFO [stderr] 
Dec 18 05:40:19.247 INFO [stderr] warning: function is never used: `gen_rectangles`
Dec 18 05:40:19.247 INFO [stderr]   --> src/main.rs:34:1
Dec 18 05:40:19.247 INFO [stderr]    |
Dec 18 05:40:19.247 INFO [stderr] 34 | fn gen_rectangles() -> () {
Dec 18 05:40:19.247 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 05:40:19.247 INFO [stderr]    |
Dec 18 05:40:19.247 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 05:40:19.247 INFO [stderr] 
Dec 18 05:40:19.296 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
Dec 18 05:40:19.891 INFO running `"docker" "inspect" "f220ba68a1bf7257b7b76f9c1661d33024ab428bd2571f20393e30d27dca848f"`
Dec 18 05:40:20.188 INFO running `"docker" "rm" "-f" "f220ba68a1bf7257b7b76f9c1661d33024ab428bd2571f20393e30d27dca848f"`
Dec 18 05:40:20.552 INFO [stdout] f220ba68a1bf7257b7b76f9c1661d33024ab428bd2571f20393e30d27dca848f