[INFO] fetching crate arc4 0.1.0...
[INFO] documenting arc4-0.1.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate arc4 0.1.0 into /workspace/builds/worker-94/source
[INFO] validating manifest of crates.io crate arc4 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 arc4 0.1.0
[INFO] finished tweaking crates.io crate arc4 0.1.0
[INFO] tweaked toml for crates.io crate arc4 0.1.0 written to /workspace/builds/worker-94/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-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] fe6ee7bd7687b8b936c093827554309ad9f862fa966ad7cd1ea31d87f3a46ef1
[INFO] running `Command { std: "docker" "start" "-a" "fe6ee7bd7687b8b936c093827554309ad9f862fa966ad7cd1ea31d87f3a46ef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe6ee7bd7687b8b936c093827554309ad9f862fa966ad7cd1ea31d87f3a46ef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe6ee7bd7687b8b936c093827554309ad9f862fa966ad7cd1ea31d87f3a46ef1", kill_on_drop: false }`
[INFO] [stdout] fe6ee7bd7687b8b936c093827554309ad9f862fa966ad7cd1ea31d87f3a46ef1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] 4c32ca42a3e98ef07d39ced047e5f244a2a3b63a11c3b84be723fbd1c94fed3f
[INFO] running `Command { std: "docker" "start" "-a" "4c32ca42a3e98ef07d39ced047e5f244a2a3b63a11c3b84be723fbd1c94fed3f", kill_on_drop: false }`
[INFO] [stderr]  Documenting arc4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "4c32ca42a3e98ef07d39ced047e5f244a2a3b63a11c3b84be723fbd1c94fed3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c32ca42a3e98ef07d39ced047e5f244a2a3b63a11c3b84be723fbd1c94fed3f", kill_on_drop: false }`
[INFO] [stdout] 4c32ca42a3e98ef07d39ced047e5f244a2a3b63a11c3b84be723fbd1c94fed3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] e4d79dc19a8e4d3a3ead56d503d525a56f11f064096ec09965011b351f6ea83e
[INFO] running `Command { std: "docker" "start" "-a" "e4d79dc19a8e4d3a3ead56d503d525a56f11f064096ec09965011b351f6ea83e", 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]  Documenting arc4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "e4d79dc19a8e4d3a3ead56d503d525a56f11f064096ec09965011b351f6ea83e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4d79dc19a8e4d3a3ead56d503d525a56f11f064096ec09965011b351f6ea83e", kill_on_drop: false }`
[INFO] [stdout] e4d79dc19a8e4d3a3ead56d503d525a56f11f064096ec09965011b351f6ea83e