[INFO] fetching crate recon 0.1.0...
[INFO] documenting recon-0.1.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate recon 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate recon 0.1.0 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 recon 0.1.0
[INFO] finished tweaking crates.io crate recon 0.1.0
[INFO] tweaked toml for crates.io crate recon 0.1.0 written to /workspace/builds/worker-4/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] eff9f8b2b4708c0ebcf37f20a6c274cd8ea2152d73f328ccb592f0a6bd3cfce2
[INFO] running `Command { std: "docker" "start" "-a" "eff9f8b2b4708c0ebcf37f20a6c274cd8ea2152d73f328ccb592f0a6bd3cfce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eff9f8b2b4708c0ebcf37f20a6c274cd8ea2152d73f328ccb592f0a6bd3cfce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eff9f8b2b4708c0ebcf37f20a6c274cd8ea2152d73f328ccb592f0a6bd3cfce2", kill_on_drop: false }`
[INFO] [stdout] eff9f8b2b4708c0ebcf37f20a6c274cd8ea2152d73f328ccb592f0a6bd3cfce2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] c752ed1a6d0fb79d2d48912d7ce7128140792e359f2c93ab4f8c7eac06b73f06
[INFO] running `Command { std: "docker" "start" "-a" "c752ed1a6d0fb79d2d48912d7ce7128140792e359f2c93ab4f8c7eac06b73f06", kill_on_drop: false }`
[INFO] [stderr]  Documenting recon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "c752ed1a6d0fb79d2d48912d7ce7128140792e359f2c93ab4f8c7eac06b73f06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c752ed1a6d0fb79d2d48912d7ce7128140792e359f2c93ab4f8c7eac06b73f06", kill_on_drop: false }`
[INFO] [stdout] c752ed1a6d0fb79d2d48912d7ce7128140792e359f2c93ab4f8c7eac06b73f06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 20f9bec0a188efa26f61e42b675869f18dc747eb1302a77ab890262679ca32a6
[INFO] running `Command { std: "docker" "start" "-a" "20f9bec0a188efa26f61e42b675869f18dc747eb1302a77ab890262679ca32a6", kill_on_drop: false }`
[INFO] [stderr]  Documenting recon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "20f9bec0a188efa26f61e42b675869f18dc747eb1302a77ab890262679ca32a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20f9bec0a188efa26f61e42b675869f18dc747eb1302a77ab890262679ca32a6", kill_on_drop: false }`
[INFO] [stdout] 20f9bec0a188efa26f61e42b675869f18dc747eb1302a77ab890262679ca32a6