[INFO] fetching crate monkey-parser 0.8.0...
[INFO] documenting monkey-parser-0.8.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate monkey-parser 0.8.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate monkey-parser 0.8.0 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 monkey-parser 0.8.0
[INFO] finished tweaking crates.io crate monkey-parser 0.8.0
[INFO] tweaked toml for crates.io crate monkey-parser 0.8.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate monkey-parser 0.8.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] cc759e681cb7d02d94cda9d365b780ad6d7d983a75951a5d7970223e6b01185b
[INFO] running `Command { std: "docker" "start" "-a" "cc759e681cb7d02d94cda9d365b780ad6d7d983a75951a5d7970223e6b01185b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc759e681cb7d02d94cda9d365b780ad6d7d983a75951a5d7970223e6b01185b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc759e681cb7d02d94cda9d365b780ad6d7d983a75951a5d7970223e6b01185b", kill_on_drop: false }`
[INFO] [stdout] cc759e681cb7d02d94cda9d365b780ad6d7d983a75951a5d7970223e6b01185b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 72cc90ff3e34de6323ded292d622b5a7e01f4eb0157a5c3ab50b2c88f0d104e7
[INFO] running `Command { std: "docker" "start" "-a" "72cc90ff3e34de6323ded292d622b5a7e01f4eb0157a5c3ab50b2c88f0d104e7", 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] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking monkey-lexer v0.8.0
[INFO] [stderr]  Documenting monkey-parser v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking monkey-parser v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `start` is never read
[INFO] [stdout]    --> lib.rs:393:17
[INFO] [stdout]     |
[INFO] [stdout] 393 |         let mut start = self.current_token.span.start;
[INFO] [stdout]     |                 ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.05s
[INFO] running `Command { std: "docker" "inspect" "72cc90ff3e34de6323ded292d622b5a7e01f4eb0157a5c3ab50b2c88f0d104e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72cc90ff3e34de6323ded292d622b5a7e01f4eb0157a5c3ab50b2c88f0d104e7", kill_on_drop: false }`
[INFO] [stdout] 72cc90ff3e34de6323ded292d622b5a7e01f4eb0157a5c3ab50b2c88f0d104e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 55a246882679bc1f6c4261399519a827f7db65bca0dd73d39080b46b39c89631
[INFO] running `Command { std: "docker" "start" "-a" "55a246882679bc1f6c4261399519a827f7db65bca0dd73d39080b46b39c89631", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking monkey-lexer v0.8.0
[INFO] [stderr]  Documenting monkey-parser v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.80s
[INFO] running `Command { std: "docker" "inspect" "55a246882679bc1f6c4261399519a827f7db65bca0dd73d39080b46b39c89631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55a246882679bc1f6c4261399519a827f7db65bca0dd73d39080b46b39c89631", kill_on_drop: false }`
[INFO] [stdout] 55a246882679bc1f6c4261399519a827f7db65bca0dd73d39080b46b39c89631