[INFO] cloning repository https://github.com/jwiegley/delta
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jwiegley/delta" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwiegley%2Fdelta", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwiegley%2Fdelta'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] df8185e26d5efa0dc4664f4c08c5aedbda934dea
[INFO] documenting jwiegley/delta against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwiegley%2Fdelta" "/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/jwiegley/delta 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 git repo https://github.com/jwiegley/delta
[INFO] finished tweaking git repo https://github.com/jwiegley/delta
[INFO] tweaked toml for git repo https://github.com/jwiegley/delta written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/jwiegley/delta 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-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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 636652c88f25fc44aaeb04fe6f3e8ca4ac74c106537f550d9c27041181f97a0f
[INFO] running `Command { std: "docker" "start" "-a" "636652c88f25fc44aaeb04fe6f3e8ca4ac74c106537f550d9c27041181f97a0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "636652c88f25fc44aaeb04fe6f3e8ca4ac74c106537f550d9c27041181f97a0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "636652c88f25fc44aaeb04fe6f3e8ca4ac74c106537f550d9c27041181f97a0f", kill_on_drop: false }`
[INFO] [stdout] 636652c88f25fc44aaeb04fe6f3e8ca4ac74c106537f550d9c27041181f97a0f
[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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7055f79f9433d5a66d3f3903e26219b47090b4b3cbd61938da0bb9d5c0faf63
[INFO] running `Command { std: "docker" "start" "-a" "f7055f79f9433d5a66d3f3903e26219b47090b4b3cbd61938da0bb9d5c0faf63", 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 syn v1.0.81
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking diff v0.1.12
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]     Checking pretty_assertions v1.0.0
[INFO] [stderr]     Checking quote v1.0.10
[INFO] [stderr]  Documenting comparable_derive v0.5.1 (/opt/rustwide/workdir/comparable_derive)
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling comparable_derive v0.5.1 (/opt/rustwide/workdir/comparable_derive)
[INFO] [stdout] warning: field is never read: `ident`
[INFO] [stdout]    --> comparable_derive/src/enums.rs:221:5
[INFO] [stdout]     |
[INFO] [stdout] 221 |     ident: Option<syn::Ident>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `FieldDetails` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> comparable_derive/src/enums.rs:219:10
[INFO] [stdout]     |
[INFO] [stdout] 219 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ty`
[INFO] [stdout]    --> comparable_derive/src/enums.rs:222:5
[INFO] [stdout]     |
[INFO] [stdout] 222 |     ty: syn::Type,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `FieldDetails` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> comparable_derive/src/enums.rs:219:10
[INFO] [stdout]     |
[INFO] [stdout] 219 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (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]     Checking serde v1.0.130
[INFO] [stderr]  Documenting comparable v0.5.1 (/opt/rustwide/workdir/comparable)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.29s
[INFO] running `Command { std: "docker" "inspect" "f7055f79f9433d5a66d3f3903e26219b47090b4b3cbd61938da0bb9d5c0faf63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7055f79f9433d5a66d3f3903e26219b47090b4b3cbd61938da0bb9d5c0faf63", kill_on_drop: false }`
[INFO] [stdout] f7055f79f9433d5a66d3f3903e26219b47090b4b3cbd61938da0bb9d5c0faf63
[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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 67fa1a46596a50ff7d3c4043632e85920d877ae8997272f713813d93a2348e43
[INFO] running `Command { std: "docker" "start" "-a" "67fa1a46596a50ff7d3c4043632e85920d877ae8997272f713813d93a2348e43", 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" "67fa1a46596a50ff7d3c4043632e85920d877ae8997272f713813d93a2348e43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67fa1a46596a50ff7d3c4043632e85920d877ae8997272f713813d93a2348e43", kill_on_drop: false }`
[INFO] [stdout] 67fa1a46596a50ff7d3c4043632e85920d877ae8997272f713813d93a2348e43