[INFO] cloning repository https://github.com/cshaffer/advent_2017
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cshaffer/advent_2017" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcshaffer%2Fadvent_2017", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcshaffer%2Fadvent_2017'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 96ccf7be81dc5a12d7600d765701091585a7f090
[INFO] documenting cshaffer/advent_2017 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcshaffer%2Fadvent_2017" "/workspace/builds/worker-29/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-29/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cshaffer/advent_2017 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cshaffer/advent_2017
[INFO] finished tweaking git repo https://github.com/cshaffer/advent_2017
[INFO] tweaked toml for git repo https://github.com/cshaffer/advent_2017 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate git repo https://github.com/cshaffer/advent_2017 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex v0.2.3
[INFO] [stderr]   Downloaded libc v0.2.34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf1d6f5a161442645a34729aefe4f62a9793c6500d15787417c1e4f3dab56040
[INFO] running `Command { std: "docker" "start" "-a" "cf1d6f5a161442645a34729aefe4f62a9793c6500d15787417c1e4f3dab56040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf1d6f5a161442645a34729aefe4f62a9793c6500d15787417c1e4f3dab56040", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf1d6f5a161442645a34729aefe4f62a9793c6500d15787417c1e4f3dab56040", kill_on_drop: false }`
[INFO] [stdout] cf1d6f5a161442645a34729aefe4f62a9793c6500d15787417c1e4f3dab56040
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a83193ae238a4d2dc7ad45913529b5b2239bf5e32ea64d8524d6df4e3755a538
[INFO] running `Command { std: "docker" "start" "-a" "a83193ae238a4d2dc7ad45913529b5b2239bf5e32ea64d8524d6df4e3755a538", kill_on_drop: false }`
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking libc v0.2.34
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]     Checking regex v0.2.3
[INFO] [stderr]  Documenting advent_2017 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/registers.rs:3:42
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn parse_comparison(operator: String) -> (fn(&i32, &i32) -> bool) {
[INFO] [stdout]   |                                          ^                      ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 3 - fn parse_comparison(operator: String) -> (fn(&i32, &i32) -> bool) {
[INFO] [stdout] 3 + fn parse_comparison(operator: String) -> fn(&i32, &i32) -> bool {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/registers.rs:19:40
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn parse_operator(operator: String) -> (fn(i32, i32) -> i32) {
[INFO] [stdout]    |                                        ^                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 19 - fn parse_operator(operator: String) -> (fn(i32, i32) -> i32) {
[INFO] [stdout] 19 + fn parse_operator(operator: String) -> fn(i32, i32) -> i32 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.69s
[INFO] running `Command { std: "docker" "inspect" "a83193ae238a4d2dc7ad45913529b5b2239bf5e32ea64d8524d6df4e3755a538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a83193ae238a4d2dc7ad45913529b5b2239bf5e32ea64d8524d6df4e3755a538", kill_on_drop: false }`
[INFO] [stdout] a83193ae238a4d2dc7ad45913529b5b2239bf5e32ea64d8524d6df4e3755a538