[INFO] cloning repository https://github.com/StreakyCobra/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/StreakyCobra/advent-of-code-2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStreakyCobra%2Fadvent-of-code-2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStreakyCobra%2Fadvent-of-code-2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2d23f981d7e7ec6261874bfde8f09cbaa5d4fc26
[INFO] testing StreakyCobra/advent-of-code-2018 against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStreakyCobra%2Fadvent-of-code-2018" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/StreakyCobra/advent-of-code-2018 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/StreakyCobra/advent-of-code-2018
[INFO] finished tweaking git repo https://github.com/StreakyCobra/advent-of-code-2018
[INFO] tweaked toml for git repo https://github.com/StreakyCobra/advent-of-code-2018 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/StreakyCobra/advent-of-code-2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99e58780b42c0ccb51d935b512acebb9052f4c37cb2e8f18eeafc62a121c0127
[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" "99e58780b42c0ccb51d935b512acebb9052f4c37cb2e8f18eeafc62a121c0127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99e58780b42c0ccb51d935b512acebb9052f4c37cb2e8f18eeafc62a121c0127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99e58780b42c0ccb51d935b512acebb9052f4c37cb2e8f18eeafc62a121c0127", kill_on_drop: false }`
[INFO] [stdout] 99e58780b42c0ccb51d935b512acebb9052f4c37cb2e8f18eeafc62a121c0127
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 16c2930c733870088b79c1f269b217df5a3a051dd0f140d90857ee3a9a48fb1f
[INFO] running `Command { std: "docker" "start" "-a" "16c2930c733870088b79c1f269b217df5a3a051dd0f140d90857ee3a9a48fb1f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling advent-of-code-2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/prob_04.rs:125:25
[INFO] [stdout]     |
[INFO] [stdout] 125 |                     let mut minutes = [0; 60];
[INFO] [stdout]     |                         ----^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/prob_04.rs:128:21
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 let mut minutes = stats.get_mut(&record.guard).unwrap();
[INFO] [stdout]     |                     ----^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/prob_06.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |             let mut total: usize = centroids
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.53s
[INFO] running `Command { std: "docker" "inspect" "16c2930c733870088b79c1f269b217df5a3a051dd0f140d90857ee3a9a48fb1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16c2930c733870088b79c1f269b217df5a3a051dd0f140d90857ee3a9a48fb1f", kill_on_drop: false }`
[INFO] [stdout] 16c2930c733870088b79c1f269b217df5a3a051dd0f140d90857ee3a9a48fb1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 482d4edaa4cdf115b9bd4d09e93ced93873d36c015a448bd1664deef59bf7790
[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" "482d4edaa4cdf115b9bd4d09e93ced93873d36c015a448bd1664deef59bf7790", kill_on_drop: false }`
[INFO] [stderr]    Compiling advent-of-code-2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/prob_04.rs:125:25
[INFO] [stdout]     |
[INFO] [stdout] 125 |                     let mut minutes = [0; 60];
[INFO] [stdout]     |                         ----^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/prob_04.rs:128:21
[INFO] [stdout]     |
[INFO] [stdout] 128 |                 let mut minutes = stats.get_mut(&record.guard).unwrap();
[INFO] [stdout]     |                     ----^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/prob_06.rs:77:17
[INFO] [stdout]    |
[INFO] [stdout] 77 |             let mut total: usize = centroids
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.89s
[INFO] running `Command { std: "docker" "inspect" "482d4edaa4cdf115b9bd4d09e93ced93873d36c015a448bd1664deef59bf7790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "482d4edaa4cdf115b9bd4d09e93ced93873d36c015a448bd1664deef59bf7790", kill_on_drop: false }`
[INFO] [stdout] 482d4edaa4cdf115b9bd4d09e93ced93873d36c015a448bd1664deef59bf7790
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cfc350ac15413b107fee6aa2fb99586bc41717ed9fefd488e9aa2c9fbd51a67b
[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" "cfc350ac15413b107fee6aa2fb99586bc41717ed9fefd488e9aa2c9fbd51a67b", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/prob_04.rs:125:25
[INFO] [stderr]     |
[INFO] [stderr] 125 |                     let mut minutes = [0; 60];
[INFO] [stderr]     |                         ----^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/prob_04.rs:128:21
[INFO] [stderr]     |
[INFO] [stderr] 128 |                 let mut minutes = stats.get_mut(&record.guard).unwrap();
[INFO] [stderr]     |                     ----^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/prob_06.rs:77:17
[INFO] [stderr]    |
[INFO] [stderr] 77 |             let mut total: usize = centroids
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/advent_of_code_2018-b062b1a97a9d57be
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test prob_01::tests::first_problem_first_part ... ok
[INFO] [stdout] test prob_02::tests::second_problem_first_part ... ok
[INFO] [stdout] test prob_07::tests::seventh_problem_second_part ... ok
[INFO] [stdout] test prob_01::tests::first_problem_second_part ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'prob_06::tests::sixth_problem_second_part' has overflowed its stack
[INFO] [stderr] fatal runtime error: stack overflow
[INFO] [stderr] error: test failed, to rerun pass '--bin advent-of-code-2018'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/advent_of_code_2018-b062b1a97a9d57be` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "cfc350ac15413b107fee6aa2fb99586bc41717ed9fefd488e9aa2c9fbd51a67b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfc350ac15413b107fee6aa2fb99586bc41717ed9fefd488e9aa2c9fbd51a67b", kill_on_drop: false }`
[INFO] [stdout] cfc350ac15413b107fee6aa2fb99586bc41717ed9fefd488e9aa2c9fbd51a67b