[INFO] fetching crate altair 0.0.1...
[INFO] documenting altair-0.0.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate altair 0.0.1 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate altair 0.0.1 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 altair 0.0.1
[INFO] finished tweaking crates.io crate altair 0.0.1
[INFO] tweaked toml for crates.io crate altair 0.0.1 written to /workspace/builds/worker-57/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] 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] b4ed12f4ad92af1161a13b79c67473a15713ff3272d57f5fcce102fedc87c6ba
[INFO] running `Command { std: "docker" "start" "-a" "b4ed12f4ad92af1161a13b79c67473a15713ff3272d57f5fcce102fedc87c6ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4ed12f4ad92af1161a13b79c67473a15713ff3272d57f5fcce102fedc87c6ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4ed12f4ad92af1161a13b79c67473a15713ff3272d57f5fcce102fedc87c6ba", kill_on_drop: false }`
[INFO] [stdout] b4ed12f4ad92af1161a13b79c67473a15713ff3272d57f5fcce102fedc87c6ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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] 4b14ba0caf54922a0efe16c58f3c5e8bb24c60b9aed5d0267d1a397e9d333bde
[INFO] running `Command { std: "docker" "start" "-a" "4b14ba0caf54922a0efe16c58f3c5e8bb24c60b9aed5d0267d1a397e9d333bde", kill_on_drop: false }`
[INFO] [stderr]  Documenting altair v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "4b14ba0caf54922a0efe16c58f3c5e8bb24c60b9aed5d0267d1a397e9d333bde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b14ba0caf54922a0efe16c58f3c5e8bb24c60b9aed5d0267d1a397e9d333bde", kill_on_drop: false }`
[INFO] [stdout] 4b14ba0caf54922a0efe16c58f3c5e8bb24c60b9aed5d0267d1a397e9d333bde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 54269292c1c5f1cd54a31a6f5bb275447db0488652bea65f0ce6d90b9aae7cf5
[INFO] running `Command { std: "docker" "start" "-a" "54269292c1c5f1cd54a31a6f5bb275447db0488652bea65f0ce6d90b9aae7cf5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Documenting altair v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "54269292c1c5f1cd54a31a6f5bb275447db0488652bea65f0ce6d90b9aae7cf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54269292c1c5f1cd54a31a6f5bb275447db0488652bea65f0ce6d90b9aae7cf5", kill_on_drop: false }`
[INFO] [stdout] 54269292c1c5f1cd54a31a6f5bb275447db0488652bea65f0ce6d90b9aae7cf5