[INFO] fetching crate matrix_rhal 0.0.6...
[INFO] documenting matrix_rhal-0.0.6 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate matrix_rhal 0.0.6 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate matrix_rhal 0.0.6 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 matrix_rhal 0.0.6
[INFO] finished tweaking crates.io crate matrix_rhal 0.0.6
[INFO] tweaked toml for crates.io crate matrix_rhal 0.0.6 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate crates.io crate matrix_rhal 0.0.6 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-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] 452bb7af6dcb3a1ccdd9cabb24acab37f2a9c1c805e957e1c81cbf5ed2b41f56
[INFO] running `Command { std: "docker" "start" "-a" "452bb7af6dcb3a1ccdd9cabb24acab37f2a9c1c805e957e1c81cbf5ed2b41f56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "452bb7af6dcb3a1ccdd9cabb24acab37f2a9c1c805e957e1c81cbf5ed2b41f56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "452bb7af6dcb3a1ccdd9cabb24acab37f2a9c1c805e957e1c81cbf5ed2b41f56", kill_on_drop: false }`
[INFO] [stdout] 452bb7af6dcb3a1ccdd9cabb24acab37f2a9c1c805e957e1c81cbf5ed2b41f56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] 3645cf5fa790a328458d5151fc071ad3a5085d2b484e7d242bb17b2ce347d5aa
[INFO] running `Command { std: "docker" "start" "-a" "3645cf5fa790a328458d5151fc071ad3a5085d2b484e7d242bb17b2ce347d5aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking nix v0.16.1
[INFO] [stderr]  Documenting matrix_rhal v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.08s
[INFO] running `Command { std: "docker" "inspect" "3645cf5fa790a328458d5151fc071ad3a5085d2b484e7d242bb17b2ce347d5aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3645cf5fa790a328458d5151fc071ad3a5085d2b484e7d242bb17b2ce347d5aa", kill_on_drop: false }`
[INFO] [stdout] 3645cf5fa790a328458d5151fc071ad3a5085d2b484e7d242bb17b2ce347d5aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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] c9acc8031354872896a220ef3adc1c214bda12df0ab6c6b8ef80b3d79835f376
[INFO] running `Command { std: "docker" "start" "-a" "c9acc8031354872896a220ef3adc1c214bda12df0ab6c6b8ef80b3d79835f376", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling nix v0.16.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]  Documenting matrix_rhal v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.03s
[INFO] running `Command { std: "docker" "inspect" "c9acc8031354872896a220ef3adc1c214bda12df0ab6c6b8ef80b3d79835f376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9acc8031354872896a220ef3adc1c214bda12df0ab6c6b8ef80b3d79835f376", kill_on_drop: false }`
[INFO] [stdout] c9acc8031354872896a220ef3adc1c214bda12df0ab6c6b8ef80b3d79835f376