[INFO] cloning repository https://github.com/fireyang/advent_of_code_2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fireyang/advent_of_code_2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffireyang%2Fadvent_of_code_2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffireyang%2Fadvent_of_code_2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78010f3f196ed98f7223f261ddc820a7eeac1eab
[INFO] checking fireyang/advent_of_code_2018 against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffireyang%2Fadvent_of_code_2018" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fireyang/advent_of_code_2018 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fireyang/advent_of_code_2018
[INFO] finished tweaking git repo https://github.com/fireyang/advent_of_code_2018
[INFO] tweaked toml for git repo https://github.com/fireyang/advent_of_code_2018 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/fireyang/advent_of_code_2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdf13b8be114f25e12f3c422272755d9fb54734f3ef89de260f12d0bedbef464
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cdf13b8be114f25e12f3c422272755d9fb54734f3ef89de260f12d0bedbef464", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdf13b8be114f25e12f3c422272755d9fb54734f3ef89de260f12d0bedbef464", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf13b8be114f25e12f3c422272755d9fb54734f3ef89de260f12d0bedbef464", kill_on_drop: false }`
[INFO] [stdout] cdf13b8be114f25e12f3c422272755d9fb54734f3ef89de260f12d0bedbef464
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c70380ee8e550f8ca36c082f2121e88627408e1c1d4c1aa20c58b54f4db4e87
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2c70380ee8e550f8ca36c082f2121e88627408e1c1d4c1aa20c58b54f4db4e87", kill_on_drop: false }`
[INFO] [stderr]     Checking linked-list v0.0.3
[INFO] [stderr]     Checking advent_of_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `prelude::*`, `self`
[INFO] [stdout]  --> src/day9.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use std::io::{self, prelude::*};
[INFO] [stdout]   |                   ^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `prelude::*`, `self`
[INFO] [stdout]  --> src/day9.rs:9:19
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use std::io::{self, prelude::*};
[INFO] [stdout]   |                   ^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `multiple`
[INFO] [stdout]    --> src/day9.rs:167:38
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn part2b(player_count: i32, multiple: i32, points: i32 ) -> usize {
[INFO] [stdout]     |                                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_multiple`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `multiple`
[INFO] [stdout]    --> src/day9.rs:167:38
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub fn part2b(player_count: i32, multiple: i32, points: i32 ) -> usize {
[INFO] [stdout]     |                                      ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_multiple`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `Command { std: "docker" "inspect" "2c70380ee8e550f8ca36c082f2121e88627408e1c1d4c1aa20c58b54f4db4e87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c70380ee8e550f8ca36c082f2121e88627408e1c1d4c1aa20c58b54f4db4e87", kill_on_drop: false }`
[INFO] [stdout] 2c70380ee8e550f8ca36c082f2121e88627408e1c1d4c1aa20c58b54f4db4e87