[INFO] fetching crate stack-buf 0.1.6...
[INFO] documenting stack-buf-0.1.6 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate stack-buf 0.1.6 into /workspace/builds/worker-27/source
[INFO] validating manifest of crates.io crate stack-buf 0.1.6 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 crates.io crate stack-buf 0.1.6
[INFO] finished tweaking crates.io crate stack-buf 0.1.6
[INFO] tweaked toml for crates.io crate stack-buf 0.1.6 written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "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-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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] 5b2575de8a0ae6e1429e577cc2f680073463925b5c66b1d99b49c98a09011211
[INFO] running `Command { std: "docker" "start" "-a" "5b2575de8a0ae6e1429e577cc2f680073463925b5c66b1d99b49c98a09011211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b2575de8a0ae6e1429e577cc2f680073463925b5c66b1d99b49c98a09011211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b2575de8a0ae6e1429e577cc2f680073463925b5c66b1d99b49c98a09011211", kill_on_drop: false }`
[INFO] [stdout] 5b2575de8a0ae6e1429e577cc2f680073463925b5c66b1d99b49c98a09011211
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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] b6495050a2f4dd40d79c15a4b5a41a8237ccff7825e96d6e6dde2d5f8e31efe1
[INFO] running `Command { std: "docker" "start" "-a" "b6495050a2f4dd40d79c15a4b5a41a8237ccff7825e96d6e6dde2d5f8e31efe1", kill_on_drop: false }`
[INFO] [stderr]  Documenting stack-buf v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/vec.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 | /// Copied from https://github.com/rust-lang/rust/pull/36355
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/rust-lang/rust/pull/36355>`
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "b6495050a2f4dd40d79c15a4b5a41a8237ccff7825e96d6e6dde2d5f8e31efe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6495050a2f4dd40d79c15a4b5a41a8237ccff7825e96d6e6dde2d5f8e31efe1", kill_on_drop: false }`
[INFO] [stdout] b6495050a2f4dd40d79c15a4b5a41a8237ccff7825e96d6e6dde2d5f8e31efe1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "--frozen" "--message-format=json" "--" "--cfg" "docsrs" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 6712f9ad154253379e6f16e7a52428e084c3b87eab52d4a44e75587f4265b878
[INFO] running `Command { std: "docker" "start" "-a" "6712f9ad154253379e6f16e7a52428e084c3b87eab52d4a44e75587f4265b878", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]  Documenting stack-buf v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this URL is not a hyperlink
[INFO] [stdout]   --> src/vec.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 | /// Copied from https://github.com/rust-lang/rust/pull/36355
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use an automatic link instead: `<https://github.com/rust-lang/rust/pull/36355>`
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.63s
[INFO] running `Command { std: "docker" "inspect" "6712f9ad154253379e6f16e7a52428e084c3b87eab52d4a44e75587f4265b878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6712f9ad154253379e6f16e7a52428e084c3b87eab52d4a44e75587f4265b878", kill_on_drop: false }`
[INFO] [stdout] 6712f9ad154253379e6f16e7a52428e084c3b87eab52d4a44e75587f4265b878