[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-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/gh/fireyang/advent_of_code_2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/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-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/gh/fireyang/advent_of_code_2018"`
[INFO] [stderr] Cloning into 'work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/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#df25d79a33b0c82b716699a75a41bfdc6089850a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fireyang/advent_of_code_2018 on toolchain try#424a4ae163d6517f301cd4048a4b5dd785be5b2f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-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-59928/sources/master#df25d79a33b0c82b716699a75a41bfdc6089850a/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-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/gh/fireyang/advent_of_code_2018/Cargo.toml
[INFO] crate fireyang/advent_of_code_2018 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+df25d79a33b0c82b716699a75a41bfdc6089850a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on the registry index
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fireyang/advent_of_code_2018 against try#424a4ae163d6517f301cd4048a4b5dd785be5b2f for pr-59928
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-59928/worker-5/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-59928/sources/try#424a4ae163d6517f301cd4048a4b5dd785be5b2f/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" "+424a4ae163d6517f301cd4048a4b5dd785be5b2f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3472e01e1915636b2c98bfe73a9911452c45b2ea725dba79870f319f14c118dc
[INFO] running `"docker" "start" "-a" "3472e01e1915636b2c98bfe73a9911452c45b2ea725dba79870f319f14c118dc"`
[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 3.47s
[INFO] running `"docker" "inspect" "3472e01e1915636b2c98bfe73a9911452c45b2ea725dba79870f319f14c118dc"`
[INFO] running `"docker" "rm" "-f" "3472e01e1915636b2c98bfe73a9911452c45b2ea725dba79870f319f14c118dc"`
[INFO] [stdout] 3472e01e1915636b2c98bfe73a9911452c45b2ea725dba79870f319f14c118dc