[INFO] fetching crate ublox_derive 0.0.4...
[INFO] documenting ublox_derive-0.0.4 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate ublox_derive 0.0.4 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate ublox_derive 0.0.4 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 ublox_derive 0.0.4
[INFO] finished tweaking crates.io crate ublox_derive 0.0.4
[INFO] tweaked toml for crates.io crate ublox_derive 0.0.4 written to /workspace/builds/worker-20/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] e99188758211046a2f06b5fe5bacc2c1e2dd2e04d6a876c3974de5fc006d03ec
[INFO] running `Command { std: "docker" "start" "-a" "e99188758211046a2f06b5fe5bacc2c1e2dd2e04d6a876c3974de5fc006d03ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e99188758211046a2f06b5fe5bacc2c1e2dd2e04d6a876c3974de5fc006d03ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e99188758211046a2f06b5fe5bacc2c1e2dd2e04d6a876c3974de5fc006d03ec", kill_on_drop: false }`
[INFO] [stdout] e99188758211046a2f06b5fe5bacc2c1e2dd2e04d6a876c3974de5fc006d03ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 6e33b7c40f5468ce6b7f8f84e9219bd894aed70eda6328f9bf354dbb6132e000
[INFO] running `Command { std: "docker" "start" "-a" "6e33b7c40f5468ce6b7f8f84e9219bd894aed70eda6328f9bf354dbb6132e000", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]  Documenting ublox_derive v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.83s
[INFO] running `Command { std: "docker" "inspect" "6e33b7c40f5468ce6b7f8f84e9219bd894aed70eda6328f9bf354dbb6132e000", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e33b7c40f5468ce6b7f8f84e9219bd894aed70eda6328f9bf354dbb6132e000", kill_on_drop: false }`
[INFO] [stdout] 6e33b7c40f5468ce6b7f8f84e9219bd894aed70eda6328f9bf354dbb6132e000
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 71f413dccb684171f74d79f4e8aabfb4eb490a4cd9280a7c6f395ae8dff2eadc
[INFO] running `Command { std: "docker" "start" "-a" "71f413dccb684171f74d79f4e8aabfb4eb490a4cd9280a7c6f395ae8dff2eadc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.39
[INFO] [stderr]     Checking unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.95
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]  Documenting ublox_derive v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.71s
[INFO] running `Command { std: "docker" "inspect" "71f413dccb684171f74d79f4e8aabfb4eb490a4cd9280a7c6f395ae8dff2eadc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f413dccb684171f74d79f4e8aabfb4eb490a4cd9280a7c6f395ae8dff2eadc", kill_on_drop: false }`
[INFO] [stdout] 71f413dccb684171f74d79f4e8aabfb4eb490a4cd9280a7c6f395ae8dff2eadc