[INFO] fetching crate dhcparse 1.0.0-alpha...
[INFO] documenting dhcparse-1.0.0-alpha against try#6fd27704e643b25711e6a97ec2b04873b411b97d for pr-96676
[INFO] extracting crate dhcparse 1.0.0-alpha into /workspace/builds/worker-25/source
[INFO] validating manifest of crates.io crate dhcparse 1.0.0-alpha on toolchain 6fd27704e643b25711e6a97ec2b04873b411b97d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dhcparse 1.0.0-alpha
[INFO] finished tweaking crates.io crate dhcparse 1.0.0-alpha
[INFO] tweaked toml for crates.io crate dhcparse 1.0.0-alpha written to /workspace/builds/worker-25/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df861faafce5b0f370970cd59e69b9b0cb7be3e179015b8987b665c01ab20755
[INFO] running `Command { std: "docker" "start" "-a" "df861faafce5b0f370970cd59e69b9b0cb7be3e179015b8987b665c01ab20755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df861faafce5b0f370970cd59e69b9b0cb7be3e179015b8987b665c01ab20755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df861faafce5b0f370970cd59e69b9b0cb7be3e179015b8987b665c01ab20755", kill_on_drop: false }`
[INFO] [stdout] df861faafce5b0f370970cd59e69b9b0cb7be3e179015b8987b665c01ab20755
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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=forbid" "-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" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ceffc3a0eef66d95984f70a0dd2be5f0c42039680241e092eb4f216727a5338
[INFO] running `Command { std: "docker" "start" "-a" "5ceffc3a0eef66d95984f70a0dd2be5f0c42039680241e092eb4f216727a5338", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling ref-cast v1.0.7
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling ref-cast-impl v1.0.7
[INFO] [stderr]  Documenting dhcparse v1.0.0-alpha (/opt/rustwide/workdir)
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]    --> src/dhcpv4.rs:887:68
[INFO] [stdout]     |
[INFO] [stdout] 887 |     /// Dummy identifier to only allow the keyword `required` in [`v4_options`].
[INFO] [stdout]     |                                                                    ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(rustdoc::macro_rules_fallback)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `dhcparse`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name dhcparse src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="std"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=8d4c544e09db782c -L dependency=/opt/rustwide/target/debug/deps --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-f75283d3dcd3daad.rmeta --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-19cac908f6232626.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-09421297eb8835cb.rmeta --extern ref_cast=/opt/rustwide/target/debug/deps/libref_cast-bc803d3cb4288c01.rmeta --cap-lints=forbid --crate-version 1.0.0-alpha` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "5ceffc3a0eef66d95984f70a0dd2be5f0c42039680241e092eb4f216727a5338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ceffc3a0eef66d95984f70a0dd2be5f0c42039680241e092eb4f216727a5338", kill_on_drop: false }`
[INFO] [stdout] 5ceffc3a0eef66d95984f70a0dd2be5f0c42039680241e092eb4f216727a5338