[INFO] crate rio 0.9.4 is already in cache
[INFO] documenting rio-0.9.4 against 1.61.0 for beta-1.62-rustdoc-1
[INFO] extracting crate rio 0.9.4 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate rio 0.9.4 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 rio 0.9.4
[INFO] finished tweaking crates.io crate rio 0.9.4
[INFO] tweaked toml for crates.io crate rio 0.9.4 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate crates.io crate rio 0.9.4 already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 4441f5f051982f8fe11a76d12fadc20cfc5045739959859bbe48d0bd2a078caa
[INFO] running `Command { std: "docker" "start" "-a" "4441f5f051982f8fe11a76d12fadc20cfc5045739959859bbe48d0bd2a078caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4441f5f051982f8fe11a76d12fadc20cfc5045739959859bbe48d0bd2a078caa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4441f5f051982f8fe11a76d12fadc20cfc5045739959859bbe48d0bd2a078caa", kill_on_drop: false }`
[INFO] [stdout] 4441f5f051982f8fe11a76d12fadc20cfc5045739959859bbe48d0bd2a078caa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 7823801762f3b8aa43d72c4337049591c3670a5b0aba04c8116745f3db9618c4
[INFO] running `Command { std: "docker" "start" "-a" "7823801762f3b8aa43d72c4337049591c3670a5b0aba04c8116745f3db9618c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]  Documenting rio v0.9.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.31s
[INFO] running `Command { std: "docker" "inspect" "7823801762f3b8aa43d72c4337049591c3670a5b0aba04c8116745f3db9618c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7823801762f3b8aa43d72c4337049591c3670a5b0aba04c8116745f3db9618c4", kill_on_drop: false }`
[INFO] [stdout] 7823801762f3b8aa43d72c4337049591c3670a5b0aba04c8116745f3db9618c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 688ca2e51e120fa2ed8a6b3429b37b8c2774b99f80833d4256be5c75d859c0bf
[INFO] running `Command { std: "docker" "start" "-a" "688ca2e51e120fa2ed8a6b3429b37b8c2774b99f80833d4256be5c75d859c0bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]  Documenting rio v0.9.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.90s
[INFO] running `Command { std: "docker" "inspect" "688ca2e51e120fa2ed8a6b3429b37b8c2774b99f80833d4256be5c75d859c0bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "688ca2e51e120fa2ed8a6b3429b37b8c2774b99f80833d4256be5c75d859c0bf", kill_on_drop: false }`
[INFO] [stdout] 688ca2e51e120fa2ed8a6b3429b37b8c2774b99f80833d4256be5c75d859c0bf