[INFO] updating cached repository fireyang/advent_of_code_2018
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fireyang/advent_of_code_2018
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fireyang/advent_of_code_2018" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/fireyang/advent_of_code_2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/fireyang/advent_of_code_2018'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fireyang/advent_of_code_2018" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/fireyang/advent_of_code_2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/fireyang/advent_of_code_2018'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 78010f3f196ed98f7223f261ddc820a7eeac1eab
[INFO] sha for GitHub repo fireyang/advent_of_code_2018: 78010f3f196ed98f7223f261ddc820a7eeac1eab
[INFO] validating manifest of fireyang/advent_of_code_2018 on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fireyang/advent_of_code_2018 on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fireyang/advent_of_code_2018
[INFO] finished frobbing fireyang/advent_of_code_2018
[INFO] frobbed toml for fireyang/advent_of_code_2018 written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/fireyang/advent_of_code_2018/Cargo.toml
[INFO] started frobbing fireyang/advent_of_code_2018
[INFO] finished frobbing fireyang/advent_of_code_2018
[INFO] frobbed toml for fireyang/advent_of_code_2018 written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/fireyang/advent_of_code_2018/Cargo.toml
[INFO] crate fireyang/advent_of_code_2018 has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fireyang/advent_of_code_2018 against master#f66e4697ae286985ddefc53c3a047614568458bb for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-7/master#f66e4697ae286985ddefc53c3a047614568458bb:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/fireyang/advent_of_code_2018:/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" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 37f3d4935c02ad67328d8c86e7af61c08e83cb072e35e876c9f75336cb31fea2
[INFO] running `"docker" "start" "-a" "37f3d4935c02ad67328d8c86e7af61c08e83cb072e35e876c9f75336cb31fea2"`
[INFO] [stderr]     Checking linked-list v0.0.3
[INFO] [stderr]     Checking advent_of_code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `prelude::*`, `self`
[INFO] [stderr]  --> src/day9.rs:9:19
[INFO] [stderr]   |
[INFO] [stderr] 9 |     use std::io::{self, prelude::*};
[INFO] [stderr]   |                   ^^^^  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `prelude::*`, `self`
[INFO] [stderr]  --> src/day9.rs:9:19
[INFO] [stderr]   |
[INFO] [stderr] 9 |     use std::io::{self, prelude::*};
[INFO] [stderr]   |                   ^^^^  ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `multiple`
[INFO] [stderr]    --> src/day9.rs:167:38
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub fn part2b(player_count: i32, multiple: i32, points: i32 ) -> usize {
[INFO] [stderr]     |                                      ^^^^^^^^ help: consider prefixing with an underscore: `_multiple`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `multiple`
[INFO] [stderr]    --> src/day9.rs:167:38
[INFO] [stderr]     |
[INFO] [stderr] 167 |     pub fn part2b(player_count: i32, multiple: i32, points: i32 ) -> usize {
[INFO] [stderr]     |                                      ^^^^^^^^ help: consider prefixing with an underscore: `_multiple`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.34s
[INFO] running `"docker" "inspect" "37f3d4935c02ad67328d8c86e7af61c08e83cb072e35e876c9f75336cb31fea2"`
[INFO] running `"docker" "rm" "-f" "37f3d4935c02ad67328d8c86e7af61c08e83cb072e35e876c9f75336cb31fea2"`
[INFO] [stdout] 37f3d4935c02ad67328d8c86e7af61c08e83cb072e35e876c9f75336cb31fea2