[INFO] fetching crate slog-unwrap 0.9.2...
[INFO] documenting slog-unwrap-0.9.2 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate slog-unwrap 0.9.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate slog-unwrap 0.9.2 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 slog-unwrap 0.9.2
[INFO] finished tweaking crates.io crate slog-unwrap 0.9.2
[INFO] tweaked toml for crates.io crate slog-unwrap 0.9.2 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 7aaa82e3a9bc343236b403594fc6f5fa1040c21cac2accfd9dcd6979b4eba617
[INFO] running `Command { std: "docker" "start" "-a" "7aaa82e3a9bc343236b403594fc6f5fa1040c21cac2accfd9dcd6979b4eba617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7aaa82e3a9bc343236b403594fc6f5fa1040c21cac2accfd9dcd6979b4eba617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aaa82e3a9bc343236b403594fc6f5fa1040c21cac2accfd9dcd6979b4eba617", kill_on_drop: false }`
[INFO] [stdout] 7aaa82e3a9bc343236b403594fc6f5fa1040c21cac2accfd9dcd6979b4eba617
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] b3a646b4d6205659494161bd075a2711be0c4db66bdf1eab8bfe62828c0622e7
[INFO] running `Command { std: "docker" "start" "-a" "b3a646b4d6205659494161bd075a2711be0c4db66bdf1eab8bfe62828c0622e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]  Documenting slog-unwrap v0.9.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Critical`
[INFO] [stdout]    --> src/slog.rs:131:33
[INFO] [stdout]     |
[INFO] [stdout] 131 |     /// [`slog::Logger`] at a [`Critical`] level.
[INFO] [stdout]     |                                 ^^^^^^^^ no item named `Critical` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Critical`
[INFO] [stdout]    --> src/slog.rs:139:33
[INFO] [stdout]     |
[INFO] [stdout] 139 |     /// [`slog::Logger`] at a [`Critical`] level.
[INFO] [stdout]     |                                 ^^^^^^^^ no item named `Critical` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Critical`
[INFO] [stdout]    --> src/slog.rs:147:55
[INFO] [stdout]     |
[INFO] [stdout] 147 |     /// [`Some`]'s value to a [`slog::Logger`] at a [`Critical`] level.
[INFO] [stdout]     |                                                       ^^^^^^^^ no item named `Critical` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Critical`
[INFO] [stdout]    --> src/slog.rs:157:62
[INFO] [stdout]     |
[INFO] [stdout] 157 |     /// content of the [`Some`] to a [`slog::Logger`] at a [`Critical`] level.
[INFO] [stdout]     |                                                              ^^^^^^^^ no item named `Critical` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.87s
[INFO] running `Command { std: "docker" "inspect" "b3a646b4d6205659494161bd075a2711be0c4db66bdf1eab8bfe62828c0622e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3a646b4d6205659494161bd075a2711be0c4db66bdf1eab8bfe62828c0622e7", kill_on_drop: false }`
[INFO] [stdout] b3a646b4d6205659494161bd075a2711be0c4db66bdf1eab8bfe62828c0622e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 809e8df23645829418a35f06308f07b2dde51b3475428989ca0673c260146fe7
[INFO] running `Command { std: "docker" "start" "-a" "809e8df23645829418a35f06308f07b2dde51b3475428989ca0673c260146fe7", kill_on_drop: false }`
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]  Documenting slog-unwrap v0.9.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Critical`
[INFO] [stdout]    --> src/slog.rs:131:33
[INFO] [stdout]     |
[INFO] [stdout] 131 |     /// [`slog::Logger`] at a [`Critical`] level.
[INFO] [stdout]     |                                 ^^^^^^^^ no item named `Critical` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Critical`
[INFO] [stdout]    --> src/slog.rs:139:33
[INFO] [stdout]     |
[INFO] [stdout] 139 |     /// [`slog::Logger`] at a [`Critical`] level.
[INFO] [stdout]     |                                 ^^^^^^^^ no item named `Critical` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Critical`
[INFO] [stdout]    --> src/slog.rs:147:55
[INFO] [stdout]     |
[INFO] [stdout] 147 |     /// [`Some`]'s value to a [`slog::Logger`] at a [`Critical`] level.
[INFO] [stdout]     |                                                       ^^^^^^^^ no item named `Critical` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Critical`
[INFO] [stdout]    --> src/slog.rs:157:62
[INFO] [stdout]     |
[INFO] [stdout] 157 |     /// content of the [`Some`] to a [`slog::Logger`] at a [`Critical`] level.
[INFO] [stdout]     |                                                              ^^^^^^^^ no item named `Critical` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.10s
[INFO] running `Command { std: "docker" "inspect" "809e8df23645829418a35f06308f07b2dde51b3475428989ca0673c260146fe7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "809e8df23645829418a35f06308f07b2dde51b3475428989ca0673c260146fe7", kill_on_drop: false }`
[INFO] [stdout] 809e8df23645829418a35f06308f07b2dde51b3475428989ca0673c260146fe7