[INFO] cloning repository https://github.com/fkohlgrueber/proc_macro_talk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fkohlgrueber/proc_macro_talk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffkohlgrueber%2Fproc_macro_talk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffkohlgrueber%2Fproc_macro_talk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1552175c29df47788b3e05d9c06324ae65d9c59c
[INFO] documenting fkohlgrueber/proc_macro_talk against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffkohlgrueber%2Fproc_macro_talk" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fkohlgrueber/proc_macro_talk 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] removed /workspace/builds/worker-14/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/fkohlgrueber/proc_macro_talk
[INFO] finished tweaking git repo https://github.com/fkohlgrueber/proc_macro_talk
[INFO] tweaked toml for git repo https://github.com/fkohlgrueber/proc_macro_talk written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/fkohlgrueber/proc_macro_talk 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] ad6189c12825186a641730d78b45a46a36f5357259088af2961063cb8e4eeef4
[INFO] running `Command { std: "docker" "start" "-a" "ad6189c12825186a641730d78b45a46a36f5357259088af2961063cb8e4eeef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad6189c12825186a641730d78b45a46a36f5357259088af2961063cb8e4eeef4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad6189c12825186a641730d78b45a46a36f5357259088af2961063cb8e4eeef4", kill_on_drop: false }`
[INFO] [stdout] ad6189c12825186a641730d78b45a46a36f5357259088af2961063cb8e4eeef4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 7bac581cdfc91fbb149598be7b4f141d32a7de846971b169af5edb75741343d4
[INFO] running `Command { std: "docker" "start" "-a" "7bac581cdfc91fbb149598be7b4f141d32a7de846971b169af5edb75741343d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking quote v1.0.2
[INFO] [stderr]  Documenting grammar-macro v0.1.0 (/opt/rustwide/workdir/grammar-macro)
[INFO] [stderr]    Compiling grammar-macro v0.1.0 (/opt/rustwide/workdir/grammar-macro)
[INFO] [stdout] warning: field is never read: `eq_token`
[INFO] [stdout]   --> grammar-macro/src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     eq_token: Token![=],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `GrammarDef` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> grammar-macro/src/lib.rs:17:10
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `paren_token`
[INFO] [stdout]   --> grammar-macro/src/lib.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     paren_token: syn::token::Paren,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `GrammarArgs` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> grammar-macro/src/lib.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting app v0.1.0 (/opt/rustwide/workdir/app)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.12s
[INFO] running `Command { std: "docker" "inspect" "7bac581cdfc91fbb149598be7b4f141d32a7de846971b169af5edb75741343d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bac581cdfc91fbb149598be7b4f141d32a7de846971b169af5edb75741343d4", kill_on_drop: false }`
[INFO] [stdout] 7bac581cdfc91fbb149598be7b4f141d32a7de846971b169af5edb75741343d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 942b35b8c658c01fee49a312c0650cbebc96a1ab5b7a8b69d028cb41996bbf73
[INFO] running `Command { std: "docker" "start" "-a" "942b35b8c658c01fee49a312c0650cbebc96a1ab5b7a8b69d028cb41996bbf73", kill_on_drop: false }`
[INFO] [stderr] error: manifest path `/opt/rustwide/workdir/Cargo.toml` is a virtual manifest, but this command requires running against an actual package in this workspace
[INFO] running `Command { std: "docker" "inspect" "942b35b8c658c01fee49a312c0650cbebc96a1ab5b7a8b69d028cb41996bbf73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "942b35b8c658c01fee49a312c0650cbebc96a1ab5b7a8b69d028cb41996bbf73", kill_on_drop: false }`
[INFO] [stdout] 942b35b8c658c01fee49a312c0650cbebc96a1ab5b7a8b69d028cb41996bbf73