[INFO] fetching crate format_xml 0.2.0...
[INFO] documenting format_xml-0.2.0 against try#6fd27704e643b25711e6a97ec2b04873b411b97d for pr-96676
[INFO] extracting crate format_xml 0.2.0 into /workspace/builds/worker-28/source
[INFO] validating manifest of crates.io crate format_xml 0.2.0 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 format_xml 0.2.0
[INFO] finished tweaking crates.io crate format_xml 0.2.0
[INFO] tweaked toml for crates.io crate format_xml 0.2.0 written to /workspace/builds/worker-28/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 0b84066357df784c11d5caaf2271042bf18ba3210c27736aae2053e815df7cfc
[INFO] running `Command { std: "docker" "start" "-a" "0b84066357df784c11d5caaf2271042bf18ba3210c27736aae2053e815df7cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b84066357df784c11d5caaf2271042bf18ba3210c27736aae2053e815df7cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b84066357df784c11d5caaf2271042bf18ba3210c27736aae2053e815df7cfc", kill_on_drop: false }`
[INFO] [stdout] 0b84066357df784c11d5caaf2271042bf18ba3210c27736aae2053e815df7cfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] fc51a183dc4c51530abb228d0a08dba760778c5af061240a9cf0a7c0a712e97d
[INFO] running `Command { std: "docker" "start" "-a" "fc51a183dc4c51530abb228d0a08dba760778c5af061240a9cf0a7c0a712e97d", kill_on_drop: false }`
[INFO] [stderr]  Documenting format_xml v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]  --> src/xml_impl.rs:8:15
[INFO] [stdout]   |
[INFO] [stdout] 8 | /// Use the [`escape!`] macro to format and html escape its contents.
[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 `format_xml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name format_xml src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a27ae7fede5f3f5c -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid --crate-version 0.2.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "fc51a183dc4c51530abb228d0a08dba760778c5af061240a9cf0a7c0a712e97d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc51a183dc4c51530abb228d0a08dba760778c5af061240a9cf0a7c0a712e97d", kill_on_drop: false }`
[INFO] [stdout] fc51a183dc4c51530abb228d0a08dba760778c5af061240a9cf0a7c0a712e97d