[INFO] fetching crate perde-core 0.0.1...
[INFO] documenting perde-core-0.0.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate perde-core 0.0.1 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate perde-core 0.0.1 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 perde-core 0.0.1
[INFO] finished tweaking crates.io crate perde-core 0.0.1
[INFO] tweaked toml for crates.io crate perde-core 0.0.1 written to /workspace/builds/worker-20/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ghost v0.1.4
[INFO] [stderr]   Downloaded inventory v0.1.11
[INFO] [stderr]   Downloaded pyo3cls v0.12.4
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.12.4
[INFO] [stderr]   Downloaded inventory-impl v0.1.11
[INFO] [stderr]   Downloaded pyo3 v0.12.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 20172b2ee45f1cf9c497e258bd36c66eb79156eff943a9cf27fe8c12c5a54f63
[INFO] running `Command { std: "docker" "start" "-a" "20172b2ee45f1cf9c497e258bd36c66eb79156eff943a9cf27fe8c12c5a54f63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20172b2ee45f1cf9c497e258bd36c66eb79156eff943a9cf27fe8c12c5a54f63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20172b2ee45f1cf9c497e258bd36c66eb79156eff943a9cf27fe8c12c5a54f63", kill_on_drop: false }`
[INFO] [stdout] 20172b2ee45f1cf9c497e258bd36c66eb79156eff943a9cf27fe8c12c5a54f63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 4ccfcb93ac8d5fedb72df698d23a7035a755da3cd891f7fcbaf881571327b596
[INFO] running `Command { std: "docker" "start" "-a" "4ccfcb93ac8d5fedb72df698d23a7035a755da3cd891f7fcbaf881571327b596", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]    Compiling unindent v0.1.9
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling pyo3 v0.12.4
[INFO] [stderr]     Checking inflections v1.1.1
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling pyo3-derive-backend v0.12.4
[INFO] [stderr]    Compiling inventory-impl v0.1.11
[INFO] [stderr]    Compiling ghost v0.1.4
[INFO] [stderr]    Compiling ctor v0.1.22
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling pyo3cls v0.12.4
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]  Documenting perde-core v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.87s
[INFO] running `Command { std: "docker" "inspect" "4ccfcb93ac8d5fedb72df698d23a7035a755da3cd891f7fcbaf881571327b596", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ccfcb93ac8d5fedb72df698d23a7035a755da3cd891f7fcbaf881571327b596", kill_on_drop: false }`
[INFO] [stdout] 4ccfcb93ac8d5fedb72df698d23a7035a755da3cd891f7fcbaf881571327b596
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] c56104f5241b9a980d3dacf9841000811392c4cbfd72a46892cb2d3419f9463f
[INFO] running `Command { std: "docker" "start" "-a" "c56104f5241b9a980d3dacf9841000811392c4cbfd72a46892cb2d3419f9463f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling inventory v0.1.11
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling unindent v0.1.9
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling pyo3 v0.12.4
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking inflections v1.1.1
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking bytecount v0.6.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling indexmap v1.8.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling pyo3-derive-backend v0.12.4
[INFO] [stderr]    Compiling ghost v0.1.4
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling ctor v0.1.22
[INFO] [stderr]    Compiling inventory-impl v0.1.11
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling pyo3cls v0.12.4
[INFO] [stderr]     Checking indoc v0.3.6
[INFO] [stderr]  Documenting perde-core v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.45s
[INFO] running `Command { std: "docker" "inspect" "c56104f5241b9a980d3dacf9841000811392c4cbfd72a46892cb2d3419f9463f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c56104f5241b9a980d3dacf9841000811392c4cbfd72a46892cb2d3419f9463f", kill_on_drop: false }`
[INFO] [stdout] c56104f5241b9a980d3dacf9841000811392c4cbfd72a46892cb2d3419f9463f