[INFO] cloning repository https://github.com/topheman/rustlang-first-try
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/topheman/rustlang-first-try" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftopheman%2Frustlang-first-try", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftopheman%2Frustlang-first-try'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8a668bd2e3a41bd021223c8c2eebeeb278d1f860
[INFO] documenting topheman/rustlang-first-try against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftopheman%2Frustlang-first-try" "/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/topheman/rustlang-first-try on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/topheman/rustlang-first-try
[INFO] finished tweaking git repo https://github.com/topheman/rustlang-first-try
[INFO] tweaked toml for git repo https://github.com/topheman/rustlang-first-try written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/topheman/rustlang-first-try already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 547ecc00d2c170b1933e0e7f43e3f697d0742d60a76d511cd8ad9ae2406d4f87
[INFO] running `Command { std: "docker" "start" "-a" "547ecc00d2c170b1933e0e7f43e3f697d0742d60a76d511cd8ad9ae2406d4f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "547ecc00d2c170b1933e0e7f43e3f697d0742d60a76d511cd8ad9ae2406d4f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "547ecc00d2c170b1933e0e7f43e3f697d0742d60a76d511cd8ad9ae2406d4f87", kill_on_drop: false }`
[INFO] [stdout] 547ecc00d2c170b1933e0e7f43e3f697d0742d60a76d511cd8ad9ae2406d4f87
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4429078951a19d96cf91da0cf38805977bf72aa237c1ee05a2cef446c99df079
[INFO] running `Command { std: "docker" "start" "-a" "4429078951a19d96cf91da0cf38805977bf72aa237c1ee05a2cef446c99df079", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking colored v1.6.1
[INFO] [stderr]  Documenting rustlang-first-try v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/main.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 34 |  * Inspired by https://stackoverflow.com/questions/30281235/how-to-cleanly-end-the-program-with-an-exit-code
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://stackoverflow.com/questions/30281235/how-to-cleanly-end-the-program-with-an-exit-code>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::bare_urls)]` on by default
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/main.rs:45:16
[INFO] [stdout]    |
[INFO] [stdout] 45 |  * Inspired by https://doc.rust-lang.org/rust-by-example/std_misc/arg/matching.html
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://doc.rust-lang.org/rust-by-example/std_misc/arg/matching.html>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "4429078951a19d96cf91da0cf38805977bf72aa237c1ee05a2cef446c99df079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4429078951a19d96cf91da0cf38805977bf72aa237c1ee05a2cef446c99df079", kill_on_drop: false }`
[INFO] [stdout] 4429078951a19d96cf91da0cf38805977bf72aa237c1ee05a2cef446c99df079