[INFO] fetching crate make_singleton_derive 1.0.0...
[INFO] documenting make_singleton_derive-1.0.0 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate make_singleton_derive 1.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate make_singleton_derive 1.0.0 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 make_singleton_derive 1.0.0
[INFO] finished tweaking crates.io crate make_singleton_derive 1.0.0
[INFO] tweaked toml for crates.io crate make_singleton_derive 1.0.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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] 301ad34793585cfe59ecfa34e00b7a9119d991a592a740ac602b8473c1b298f4
[INFO] running `Command { std: "docker" "start" "-a" "301ad34793585cfe59ecfa34e00b7a9119d991a592a740ac602b8473c1b298f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "301ad34793585cfe59ecfa34e00b7a9119d991a592a740ac602b8473c1b298f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "301ad34793585cfe59ecfa34e00b7a9119d991a592a740ac602b8473c1b298f4", kill_on_drop: false }`
[INFO] [stdout] 301ad34793585cfe59ecfa34e00b7a9119d991a592a740ac602b8473c1b298f4
[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] f72f3fdc2c52598eb6c1361976ad761f084b61b0a82a127ea24f1ed5f3e2aefb
[INFO] running `Command { std: "docker" "start" "-a" "f72f3fdc2c52598eb6c1361976ad761f084b61b0a82a127ea24f1ed5f3e2aefb", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.0.4
[INFO] [stderr]     Checking quote v0.3.15
[INFO] [stderr]     Checking synom v0.11.3
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]  Documenting make_singleton_derive v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.72s
[INFO] running `Command { std: "docker" "inspect" "f72f3fdc2c52598eb6c1361976ad761f084b61b0a82a127ea24f1ed5f3e2aefb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f72f3fdc2c52598eb6c1361976ad761f084b61b0a82a127ea24f1ed5f3e2aefb", kill_on_drop: false }`
[INFO] [stdout] f72f3fdc2c52598eb6c1361976ad761f084b61b0a82a127ea24f1ed5f3e2aefb
[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] 71193491d97bbee29ae8dce4cd8ecc1d280e902dae073d9aa3d1e8ca0a999aa2
[INFO] running `Command { std: "docker" "start" "-a" "71193491d97bbee29ae8dce4cd8ecc1d280e902dae073d9aa3d1e8ca0a999aa2", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.0.4
[INFO] [stderr]     Checking quote v0.3.15
[INFO] [stderr]     Checking synom v0.11.3
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]  Documenting make_singleton_derive v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "71193491d97bbee29ae8dce4cd8ecc1d280e902dae073d9aa3d1e8ca0a999aa2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71193491d97bbee29ae8dce4cd8ecc1d280e902dae073d9aa3d1e8ca0a999aa2", kill_on_drop: false }`
[INFO] [stdout] 71193491d97bbee29ae8dce4cd8ecc1d280e902dae073d9aa3d1e8ca0a999aa2