[INFO] cloning repository https://github.com/ralexstokes/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/ralexstokes/advent-of-code-2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fralexstokes%2Fadvent-of-code-2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fralexstokes%2Fadvent-of-code-2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 848f96d222733573f97e7bdeb9cea7036f2c3e20
[INFO] testing ralexstokes/advent-of-code-2018 against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fralexstokes%2Fadvent-of-code-2018" "/workspace/builds/worker-103/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-103/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ralexstokes/advent-of-code-2018 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ralexstokes/advent-of-code-2018
[INFO] finished tweaking git repo https://github.com/ralexstokes/advent-of-code-2018
[INFO] tweaked toml for git repo https://github.com/ralexstokes/advent-of-code-2018 written to /workspace/builds/worker-103/source/Cargo.toml
[INFO] crate git repo https://github.com/ralexstokes/advent-of-code-2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f93b062c85f9f1c2cdf47e5186d86471c485ddfbcaad2f29db64c95e5cb151f8
[INFO] running `Command { std: "docker" "start" "-a" "f93b062c85f9f1c2cdf47e5186d86471c485ddfbcaad2f29db64c95e5cb151f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f93b062c85f9f1c2cdf47e5186d86471c485ddfbcaad2f29db64c95e5cb151f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f93b062c85f9f1c2cdf47e5186d86471c485ddfbcaad2f29db64c95e5cb151f8", kill_on_drop: false }`
[INFO] [stdout] f93b062c85f9f1c2cdf47e5186d86471c485ddfbcaad2f29db64c95e5cb151f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99cc524bc8cc0544c518ab1bd7ce53aec6565c932f612439d35f7facab162ca1
[INFO] running `Command { std: "docker" "start" "-a" "99cc524bc8cc0544c518ab1bd7ce53aec6565c932f612439d35f7facab162ca1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling advent_of_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 54s
[INFO] running `Command { std: "docker" "inspect" "99cc524bc8cc0544c518ab1bd7ce53aec6565c932f612439d35f7facab162ca1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99cc524bc8cc0544c518ab1bd7ce53aec6565c932f612439d35f7facab162ca1", kill_on_drop: false }`
[INFO] [stdout] 99cc524bc8cc0544c518ab1bd7ce53aec6565c932f612439d35f7facab162ca1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8a3641de09f01875a890be9fc9bf42e3666020514740aa7bb4ef48603bf749c
[INFO] running `Command { std: "docker" "start" "-a" "e8a3641de09f01875a890be9fc9bf42e3666020514740aa7bb4ef48603bf749c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling advent_of_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `sleeps`
[INFO] [stdout]    --> src/day_4.rs:146:29
[INFO] [stdout]     |
[INFO] [stdout] 146 |                         let sleeps = current_guard.minutes_asleep.len();
[INFO] [stdout]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sleeps`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sleeps`
[INFO] [stdout]    --> src/day_4.rs:174:17
[INFO] [stdout]     |
[INFO] [stdout] 174 |             let sleeps = current_guard.minutes_asleep.len();
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sleeps`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `EventRE` should have an upper case name
[INFO] [stdout]   --> src/day_4.rs:99:28
[INFO] [stdout]    |
[INFO] [stdout] 99 |                 static ref EventRE: Regex = Regex::new(r"^Guard #(\d+) begins shift$").unwrap();
[INFO] [stdout]    |                            ^^^^^^^ help: convert the identifier to upper case: `EVENT_RE`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.59s
[INFO] running `Command { std: "docker" "inspect" "e8a3641de09f01875a890be9fc9bf42e3666020514740aa7bb4ef48603bf749c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8a3641de09f01875a890be9fc9bf42e3666020514740aa7bb4ef48603bf749c", kill_on_drop: false }`
[INFO] [stdout] e8a3641de09f01875a890be9fc9bf42e3666020514740aa7bb4ef48603bf749c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7c9640e84dee7ddc8dabf15266dd3fa7fd7bab60c5881b3dbeec38c47d81cf31
[INFO] running `Command { std: "docker" "start" "-a" "7c9640e84dee7ddc8dabf15266dd3fa7fd7bab60c5881b3dbeec38c47d81cf31", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `sleeps`
[INFO] [stderr]    --> src/day_4.rs:146:29
[INFO] [stderr]     |
[INFO] [stderr] 146 |                         let sleeps = current_guard.minutes_asleep.len();
[INFO] [stderr]     |                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sleeps`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sleeps`
[INFO] [stderr]    --> src/day_4.rs:174:17
[INFO] [stderr]     |
[INFO] [stderr] 174 |             let sleeps = current_guard.minutes_asleep.len();
[INFO] [stderr]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_sleeps`
[INFO] [stderr] 
[INFO] [stderr] warning: static variable `EventRE` should have an upper case name
[INFO] [stderr]   --> src/day_4.rs:99:28
[INFO] [stderr]    |
[INFO] [stderr] 99 |                 static ref EventRE: Regex = Regex::new(r"^Guard #(\d+) begins shift$").unwrap();
[INFO] [stderr]    |                            ^^^^^^^ help: convert the identifier to upper case: `EVENT_RE`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `advent_of_code` (lib test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 13.70s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/advent_of_code-8918d700527d13ae)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test day_2::tests::can_diff_by ... ok
[INFO] [stdout] test day_2::tests::can_find_checksum ... ok
[INFO] [stdout] test day_1::tests::can_find_sum_frequency ... ok
[INFO] [stdout] test day_3::tests::can_yield_extent ... ok
[INFO] [stdout] test day_4::tests::can_find_guard_with_most_sleep ... ok
[INFO] [stdout] test day_2::tests::can_find_correct_ids ... ok
[INFO] [stdout] test day_4::tests::can_find_most_frequent_minute ... ok
[INFO] [stdout] test day_1::tests::can_find_duplicates ... ok
[INFO] [stdout] test day_1::tests::can_find_duplicates_with_iters ... ok
[INFO] [stdout] test day_3::tests::can_total_overlapping_claims ... ok
[INFO] [stdout] test day_3::tests::can_find_nonoverlapping_claims ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 14.24s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/advent_of_code-8e8695f635f199e5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests advent_of_code
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7c9640e84dee7ddc8dabf15266dd3fa7fd7bab60c5881b3dbeec38c47d81cf31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c9640e84dee7ddc8dabf15266dd3fa7fd7bab60c5881b3dbeec38c47d81cf31", kill_on_drop: false }`
[INFO] [stdout] 7c9640e84dee7ddc8dabf15266dd3fa7fd7bab60c5881b3dbeec38c47d81cf31