[INFO] cloning repository https://github.com/mookid/rust-adventofcode2017
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mookid/rust-adventofcode2017" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmookid%2Frust-adventofcode2017", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmookid%2Frust-adventofcode2017'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b8300aacb3f428811d0d7aec97f699039a07fe3
[INFO] documenting mookid/rust-adventofcode2017 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmookid%2Frust-adventofcode2017" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mookid/rust-adventofcode2017 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mookid/rust-adventofcode2017
[INFO] finished tweaking git repo https://github.com/mookid/rust-adventofcode2017
[INFO] tweaked toml for git repo https://github.com/mookid/rust-adventofcode2017 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/mookid/rust-adventofcode2017 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b511e263a07b19321dd079c1f5dded2b6cb16e00050a05d20fdcc87e9998fa4
[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" "6b511e263a07b19321dd079c1f5dded2b6cb16e00050a05d20fdcc87e9998fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b511e263a07b19321dd079c1f5dded2b6cb16e00050a05d20fdcc87e9998fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b511e263a07b19321dd079c1f5dded2b6cb16e00050a05d20fdcc87e9998fa4", kill_on_drop: false }`
[INFO] [stdout] 6b511e263a07b19321dd079c1f5dded2b6cb16e00050a05d20fdcc87e9998fa4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc0c94a27191d745c6f9f9e343ed607177de93d84ca64dc2ac3d4ec0d6236078
[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" "dc0c94a27191d745c6f9f9e343ed607177de93d84ca64dc2ac3d4ec0d6236078", kill_on_drop: false }`
[INFO] [stderr]     Checking advent-of-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting advent-of-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib.rs:5:48
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn read_input_file() -> Result<String, Box<::std::error::Error>> {
[INFO] [stdout]   |                                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn (::std::error::Error)`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/day9-stream-processing.rs:91:78
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn garbage<S: Iterator<Item = Tok>>(tok: Option<Tok>, str: &mut S) -> Option<(i32)> {
[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 type
[INFO] [stdout]   --> src/day9-stream-processing.rs:98:86
[INFO] [stdout]    |
[INFO] [stdout] 98 | fn garbage_content<S: Iterator<Item = Tok>>(tok: Option<Tok>, str: &mut S) -> Option<(i32)> {
[INFO] [stdout]    |                                                                                      ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.31s
[INFO] running `Command { std: "docker" "inspect" "dc0c94a27191d745c6f9f9e343ed607177de93d84ca64dc2ac3d4ec0d6236078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc0c94a27191d745c6f9f9e343ed607177de93d84ca64dc2ac3d4ec0d6236078", kill_on_drop: false }`
[INFO] [stdout] dc0c94a27191d745c6f9f9e343ed607177de93d84ca64dc2ac3d4ec0d6236078