[INFO] fetching crate rxprog 1.0.2...
[INFO] documenting rxprog-1.0.2 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate rxprog 1.0.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rxprog 1.0.2 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 rxprog 1.0.2
[INFO] finished tweaking crates.io crate rxprog 1.0.2
[INFO] tweaked toml for crates.io crate rxprog 1.0.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rxprog 1.0.2 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] 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] 5f579631c2a7d179e1ae7a81d25be7f470ed3d15f4294070ea68d92a00b02885
[INFO] running `Command { std: "docker" "start" "-a" "5f579631c2a7d179e1ae7a81d25be7f470ed3d15f4294070ea68d92a00b02885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f579631c2a7d179e1ae7a81d25be7f470ed3d15f4294070ea68d92a00b02885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f579631c2a7d179e1ae7a81d25be7f470ed3d15f4294070ea68d92a00b02885", kill_on_drop: false }`
[INFO] [stdout] 5f579631c2a7d179e1ae7a81d25be7f470ed3d15f4294070ea68d92a00b02885
[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] cb6a53abf2bf4a44034ecab5eb0984bc2ee781227377dd707a6134da2848e6ac
[INFO] running `Command { std: "docker" "start" "-a" "cb6a53abf2bf4a44034ecab5eb0984bc2ee781227377dd707a6134da2848e6ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]  Documenting rxprog v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.72s
[INFO] running `Command { std: "docker" "inspect" "cb6a53abf2bf4a44034ecab5eb0984bc2ee781227377dd707a6134da2848e6ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb6a53abf2bf4a44034ecab5eb0984bc2ee781227377dd707a6134da2848e6ac", kill_on_drop: false }`
[INFO] [stdout] cb6a53abf2bf4a44034ecab5eb0984bc2ee781227377dd707a6134da2848e6ac
[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] 7f27fb8fb0bcb853e93c67dd8e5eb33042e001d8e51087d7008ee441613540a6
[INFO] running `Command { std: "docker" "start" "-a" "7f27fb8fb0bcb853e93c67dd8e5eb33042e001d8e51087d7008ee441613540a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]  Documenting rxprog v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.24s
[INFO] running `Command { std: "docker" "inspect" "7f27fb8fb0bcb853e93c67dd8e5eb33042e001d8e51087d7008ee441613540a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f27fb8fb0bcb853e93c67dd8e5eb33042e001d8e51087d7008ee441613540a6", kill_on_drop: false }`
[INFO] [stdout] 7f27fb8fb0bcb853e93c67dd8e5eb33042e001d8e51087d7008ee441613540a6