[INFO] cloning repository https://github.com/heejongahn/daily-BOJ
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/heejongahn/daily-BOJ" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheejongahn%2Fdaily-BOJ", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheejongahn%2Fdaily-BOJ'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f1ec181a66b7745ef46992da012315cf2be06358
[INFO] documenting heejongahn/daily-BOJ against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fheejongahn%2Fdaily-BOJ" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/heejongahn/daily-BOJ on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/heejongahn/daily-BOJ
[INFO] finished tweaking git repo https://github.com/heejongahn/daily-BOJ
[INFO] tweaked toml for git repo https://github.com/heejongahn/daily-BOJ written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/heejongahn/daily-BOJ already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fe894fab41902c2cbc1d1bc8fb6828ef8c74e3456393ca6e0e7bae9283cd6bf
[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" "9fe894fab41902c2cbc1d1bc8fb6828ef8c74e3456393ca6e0e7bae9283cd6bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fe894fab41902c2cbc1d1bc8fb6828ef8c74e3456393ca6e0e7bae9283cd6bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fe894fab41902c2cbc1d1bc8fb6828ef8c74e3456393ca6e0e7bae9283cd6bf", kill_on_drop: false }`
[INFO] [stdout] 9fe894fab41902c2cbc1d1bc8fb6828ef8c74e3456393ca6e0e7bae9283cd6bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6dbab6da5f3c7ed1c989f086b006c9d343ad00b40c38527dac800b5c430d4dc2
[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" "6dbab6da5f3c7ed1c989f086b006c9d343ad00b40c38527dac800b5c430d4dc2", 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] [stderr]     Checking daily-boj v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting daily-boj v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]  --> src/bin/1978.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |         if ((n % i) == 0) {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]   --> src/bin/1978.rs:26:15
[INFO] [stdout]    |
[INFO] [stdout] 26 |         match (str::parse::<i32>(string)) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/bin/2750.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 31 |         if (&v[i] < &v[len - 1]) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.01s
[INFO] running `Command { std: "docker" "inspect" "6dbab6da5f3c7ed1c989f086b006c9d343ad00b40c38527dac800b5c430d4dc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dbab6da5f3c7ed1c989f086b006c9d343ad00b40c38527dac800b5c430d4dc2", kill_on_drop: false }`
[INFO] [stdout] 6dbab6da5f3c7ed1c989f086b006c9d343ad00b40c38527dac800b5c430d4dc2