[INFO] fetching crate learning_rust 0.1.0...
[INFO] documenting learning_rust-0.1.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate learning_rust 0.1.0 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate learning_rust 0.1.0 on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate learning_rust 0.1.0
[INFO] finished tweaking crates.io crate learning_rust 0.1.0
[INFO] tweaked toml for crates.io crate learning_rust 0.1.0 written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] crate crates.io crate learning_rust 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e190da589551b85d0fd479c882fc51fe46956cf71bc009608d20a1b6e464579
[INFO] running `Command { std: "docker" "start" "-a" "1e190da589551b85d0fd479c882fc51fe46956cf71bc009608d20a1b6e464579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e190da589551b85d0fd479c882fc51fe46956cf71bc009608d20a1b6e464579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e190da589551b85d0fd479c882fc51fe46956cf71bc009608d20a1b6e464579", kill_on_drop: false }`
[INFO] [stdout] 1e190da589551b85d0fd479c882fc51fe46956cf71bc009608d20a1b6e464579
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d271c195d907c3c628e359c0d53a87df74b8708a27b0cf102f77fc14c258714
[INFO] running `Command { std: "docker" "start" "-a" "5d271c195d907c3c628e359c0d53a87df74b8708a27b0cf102f77fc14c258714", kill_on_drop: false }`
[INFO] [stderr]     Checking learning_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting learning_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `c1`
[INFO] [stdout]   --> src/lib.rs:44:16
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor)-> SecondaryColor{
[INFO] [stdout]    |                ^^ help: if this is intentional, prefix it with an underscore: `_c1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c2`
[INFO] [stdout]   --> src/lib.rs:44:34
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn mix(c1: PrimaryColor, c2: PrimaryColor)-> SecondaryColor{
[INFO] [stdout]    |                                  ^^ help: if this is intentional, prefix it with an underscore: `_c2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.03s
[INFO] running `Command { std: "docker" "inspect" "5d271c195d907c3c628e359c0d53a87df74b8708a27b0cf102f77fc14c258714", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d271c195d907c3c628e359c0d53a87df74b8708a27b0cf102f77fc14c258714", kill_on_drop: false }`
[INFO] [stdout] 5d271c195d907c3c628e359c0d53a87df74b8708a27b0cf102f77fc14c258714
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 523cfaad091b3af4a59fa3601bb621d1a5201960e57efe085322c693fc7cce95
[INFO] running `Command { std: "docker" "start" "-a" "523cfaad091b3af4a59fa3601bb621d1a5201960e57efe085322c693fc7cce95", kill_on_drop: false }`
[INFO] [stderr]  Documenting learning_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "523cfaad091b3af4a59fa3601bb621d1a5201960e57efe085322c693fc7cce95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "523cfaad091b3af4a59fa3601bb621d1a5201960e57efe085322c693fc7cce95", kill_on_drop: false }`
[INFO] [stdout] 523cfaad091b3af4a59fa3601bb621d1a5201960e57efe085322c693fc7cce95