[INFO] fetching crate rmodbus 0.6.0...
[INFO] documenting rmodbus-0.6.0 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate rmodbus 0.6.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rmodbus 0.6.0 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 rmodbus 0.6.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rmodbus 0.6.0
[INFO] tweaked toml for crates.io crate rmodbus 0.6.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate rmodbus 0.6.0 already has a lockfile, it will not be regenerated
[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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 7cbbbaf7fd64b30db6b97029e77840f855cdb9c2f4f609aa7968d4a24a1c6986
[INFO] running `Command { std: "docker" "start" "-a" "7cbbbaf7fd64b30db6b97029e77840f855cdb9c2f4f609aa7968d4a24a1c6986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7cbbbaf7fd64b30db6b97029e77840f855cdb9c2f4f609aa7968d4a24a1c6986", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cbbbaf7fd64b30db6b97029e77840f855cdb9c2f4f609aa7968d4a24a1c6986", kill_on_drop: false }`
[INFO] [stdout] 7cbbbaf7fd64b30db6b97029e77840f855cdb9c2f4f609aa7968d4a24a1c6986
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 827acd5c0d91feca9f0978811776599e6be615c495e1de8194c7d20ad3c8e859
[INFO] running `Command { std: "docker" "start" "-a" "827acd5c0d91feca9f0978811776599e6be615c495e1de8194c7d20ad3c8e859", kill_on_drop: false }`
[INFO] [stderr]     Checking ieee754 v0.2.6
[INFO] [stderr]     Checking fixedvec v0.2.4
[INFO] [stderr]  Documenting rmodbus v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `Command { std: "docker" "inspect" "827acd5c0d91feca9f0978811776599e6be615c495e1de8194c7d20ad3c8e859", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "827acd5c0d91feca9f0978811776599e6be615c495e1de8194c7d20ad3c8e859", kill_on_drop: false }`
[INFO] [stdout] 827acd5c0d91feca9f0978811776599e6be615c495e1de8194c7d20ad3c8e859
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "--features" "" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 46844a39567c6b2a7993d8f3e8714be1ec834d4a786b633066e41a2994fd0c3a
[INFO] running `Command { std: "docker" "start" "-a" "46844a39567c6b2a7993d8f3e8714be1ec834d4a786b633066e41a2994fd0c3a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ieee754 v0.2.6
[INFO] [stderr]     Checking fixedvec v0.2.4
[INFO] [stderr]  Documenting rmodbus v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "46844a39567c6b2a7993d8f3e8714be1ec834d4a786b633066e41a2994fd0c3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46844a39567c6b2a7993d8f3e8714be1ec834d4a786b633066e41a2994fd0c3a", kill_on_drop: false }`
[INFO] [stdout] 46844a39567c6b2a7993d8f3e8714be1ec834d4a786b633066e41a2994fd0c3a