[INFO] cloning repository https://github.com/tahnok/advent2016
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tahnok/advent2016" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftahnok%2Fadvent2016", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftahnok%2Fadvent2016'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cc6fadfe65f9f9fda4ec1c7f84b30ad2f94ae724
[INFO] documenting tahnok/advent2016 against 1.75.0 for beta-1.76-rustdoc-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftahnok%2Fadvent2016" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tahnok/advent2016 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tahnok/advent2016
[INFO] finished tweaking git repo https://github.com/tahnok/advent2016
[INFO] tweaked toml for git repo https://github.com/tahnok/advent2016 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tahnok/advent2016 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ec7dc080e60b2da22004a7f0e9ca42bc3e7b4bf2aa02da24187f08141efaa5f
[INFO] running `Command { std: "docker" "start" "-a" "0ec7dc080e60b2da22004a7f0e9ca42bc3e7b4bf2aa02da24187f08141efaa5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ec7dc080e60b2da22004a7f0e9ca42bc3e7b4bf2aa02da24187f08141efaa5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ec7dc080e60b2da22004a7f0e9ca42bc3e7b4bf2aa02da24187f08141efaa5f", kill_on_drop: false }`
[INFO] [stdout] 0ec7dc080e60b2da22004a7f0e9ca42bc3e7b4bf2aa02da24187f08141efaa5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01541695c5f3b0d573aa126e4dcdb16ed708b53d600639c36453f86ba8ca7dd6
[INFO] running `Command { std: "docker" "start" "-a" "01541695c5f3b0d573aa126e4dcdb16ed708b53d600639c36453f86ba8ca7dd6", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking time v0.1.35
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]  Documenting advent2016 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/bin/day9_2.rs:16:37
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut parts = input.splitn(3, (|c| c == '(' || c == ')'));
[INFO] [stdout]    |                                     ^                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 16 -     let mut parts = input.splitn(3, (|c| c == '(' || c == ')'));
[INFO] [stdout] 16 +     let mut parts = input.splitn(3, |c| c == '(' || c == ')');
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/bin/day9_1.rs:25:37
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut parts = input.splitn(3, (|c| c == '(' || c == ')'));
[INFO] [stdout]    |                                     ^                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -     let mut parts = input.splitn(3, (|c| c == '(' || c == ')'));
[INFO] [stdout] 25 +     let mut parts = input.splitn(3, |c| c == '(' || c == ')');
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.85s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.21
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/advent2016/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day10_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day10_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day11_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day12_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day12_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day13_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day13_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day14_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day14_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day15_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day15_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day16_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day16_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day17_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day17_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day18_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day18_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day19_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day19_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day1_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day1_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day20_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day20_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day2_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day2_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day3_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day3_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day4_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day4_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day5_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day5_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day6_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day6_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day7_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day7_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day8_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day8_2/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day9_1/index.html
[INFO] [stderr]    Generated /opt/rustwide/target/doc/day9_2/index.html
[INFO] running `Command { std: "docker" "inspect" "01541695c5f3b0d573aa126e4dcdb16ed708b53d600639c36453f86ba8ca7dd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01541695c5f3b0d573aa126e4dcdb16ed708b53d600639c36453f86ba8ca7dd6", kill_on_drop: false }`
[INFO] [stdout] 01541695c5f3b0d573aa126e4dcdb16ed708b53d600639c36453f86ba8ca7dd6
