[INFO] fetching crate gstuff 0.7.4...
[INFO] documenting gstuff-0.7.4 against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] extracting crate gstuff 0.7.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate gstuff 0.7.4 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gstuff 0.7.4
[INFO] finished tweaking crates.io crate gstuff 0.7.4
[INFO] tweaked toml for crates.io crate gstuff 0.7.4 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 978fef06c87a3bf13c5c795df7543ad7d9c46f08863838c8ef502986afd6c708
[INFO] running `Command { std: "docker" "start" "-a" "978fef06c87a3bf13c5c795df7543ad7d9c46f08863838c8ef502986afd6c708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "978fef06c87a3bf13c5c795df7543ad7d9c46f08863838c8ef502986afd6c708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "978fef06c87a3bf13c5c795df7543ad7d9c46f08863838c8ef502986afd6c708", kill_on_drop: false }`
[INFO] [stdout] 978fef06c87a3bf13c5c795df7543ad7d9c46f08863838c8ef502986afd6c708
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd974a100a78cfe8b1a0b45d3fc17b802f0ddbbde63420a0b9d49a2ded6fccc1
[INFO] running `Command { std: "docker" "start" "-a" "dd974a100a78cfe8b1a0b45d3fc17b802f0ddbbde63420a0b9d49a2ded6fccc1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting gstuff v0.7.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]    --> gstuff.rs:538:9
[INFO] [stdout]     |
[INFO] [stdout] 538 | /// cf. https://github.com/crossbeam-rs/crossbeam-channel/issues/25.
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/crossbeam-rs/crossbeam-channel/issues/25.>`
[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]    --> gstuff.rs:368:9
[INFO] [stdout]     |
[INFO] [stdout] 368 | /// cf. http://stackoverflow.com/a/26878367/257568 (C++, Boost).
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<http://stackoverflow.com/a/26878367/257568>`
[INFO] [stdout]     |
[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]    --> gstuff.rs:591:43
[INFO] [stdout]     |
[INFO] [stdout] 591 | /// NB: There is a similar abstraction at https://github.com/matklad/once_cell.
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/matklad/once_cell.>`
[INFO] [stdout]     |
[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]   --> gstuff.rs:47:9
[INFO] [stdout]    |
[INFO] [stdout] 47 | /// cf. http://www.reddit.com/r/rust/comments/29wwzw/error_handling_and_result_types/cipcm9a
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<http://www.reddit.com/r/rust/comments/29wwzw/error_handling_and_result_types/cipcm9a>`
[INFO] [stdout]    |
[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]    --> gstuff.rs:256:19
[INFO] [stdout]     |
[INFO] [stdout] 256 | /// Alternatives: https://crates.io/crates/stack.
[INFO] [stdout]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://crates.io/crates/stack.>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: bare URLs are not automatically turned into clickable links
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "dd974a100a78cfe8b1a0b45d3fc17b802f0ddbbde63420a0b9d49a2ded6fccc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd974a100a78cfe8b1a0b45d3fc17b802f0ddbbde63420a0b9d49a2ded6fccc1", kill_on_drop: false }`
[INFO] [stdout] dd974a100a78cfe8b1a0b45d3fc17b802f0ddbbde63420a0b9d49a2ded6fccc1
