[INFO] fetching crate bktree 1.0.1...
[INFO] documenting bktree-1.0.1 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate bktree 1.0.1 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate bktree 1.0.1 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 bktree 1.0.1
[INFO] finished tweaking crates.io crate bktree 1.0.1
[INFO] tweaked toml for crates.io crate bktree 1.0.1 written to /workspace/builds/worker-31/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-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] d779b24fab0872f478b3343b27494cd3ad2e38ff9c03719b2887e89d1e01f77d
[INFO] running `Command { std: "docker" "start" "-a" "d779b24fab0872f478b3343b27494cd3ad2e38ff9c03719b2887e89d1e01f77d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d779b24fab0872f478b3343b27494cd3ad2e38ff9c03719b2887e89d1e01f77d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d779b24fab0872f478b3343b27494cd3ad2e38ff9c03719b2887e89d1e01f77d", kill_on_drop: false }`
[INFO] [stdout] d779b24fab0872f478b3343b27494cd3ad2e38ff9c03719b2887e89d1e01f77d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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] f8559eb57d29534006a73dde94a5f5d1bc2dcb1fc4b0528020fa807f07e6554e
[INFO] running `Command { std: "docker" "start" "-a" "f8559eb57d29534006a73dde94a5f5d1bc2dcb1fc4b0528020fa807f07e6554e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking num-complex v0.4.1
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]  Documenting bktree v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.99s
[INFO] running `Command { std: "docker" "inspect" "f8559eb57d29534006a73dde94a5f5d1bc2dcb1fc4b0528020fa807f07e6554e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8559eb57d29534006a73dde94a5f5d1bc2dcb1fc4b0528020fa807f07e6554e", kill_on_drop: false }`
[INFO] [stdout] f8559eb57d29534006a73dde94a5f5d1bc2dcb1fc4b0528020fa807f07e6554e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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] 61a145120796ed3e14cecd8500e244db3bc029e30720d90c17c554847d5c2295
[INFO] running `Command { std: "docker" "start" "-a" "61a145120796ed3e14cecd8500e244db3bc029e30720d90c17c554847d5c2295", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking num-complex v0.4.1
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]  Documenting bktree v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.50s
[INFO] running `Command { std: "docker" "inspect" "61a145120796ed3e14cecd8500e244db3bc029e30720d90c17c554847d5c2295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61a145120796ed3e14cecd8500e244db3bc029e30720d90c17c554847d5c2295", kill_on_drop: false }`
[INFO] [stdout] 61a145120796ed3e14cecd8500e244db3bc029e30720d90c17c554847d5c2295