[INFO] fetching crate rustlr 0.2.4...
[INFO] documenting rustlr-0.2.4 against try#6fd27704e643b25711e6a97ec2b04873b411b97d for pr-96676
[INFO] extracting crate rustlr 0.2.4 into /workspace/builds/worker-38/source
[INFO] validating manifest of crates.io crate rustlr 0.2.4 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 rustlr 0.2.4
[INFO] finished tweaking crates.io crate rustlr 0.2.4
[INFO] tweaked toml for crates.io crate rustlr 0.2.4 written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate crates.io crate rustlr 0.2.4 already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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] 3b6ea625407cfa66317615394a567a7984895908849523342531047fa1b148b4
[INFO] running `Command { std: "docker" "start" "-a" "3b6ea625407cfa66317615394a567a7984895908849523342531047fa1b148b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b6ea625407cfa66317615394a567a7984895908849523342531047fa1b148b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b6ea625407cfa66317615394a567a7984895908849523342531047fa1b148b4", kill_on_drop: false }`
[INFO] [stdout] 3b6ea625407cfa66317615394a567a7984895908849523342531047fa1b148b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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] 683b9cafb352ddcd7e9a92e2a359fa91e3945f96a8d0764a051f26affede73db
[INFO] running `Command { std: "docker" "start" "-a" "683b9cafb352ddcd7e9a92e2a359fa91e3945f96a8d0764a051f26affede73db", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]  Documenting rustlr v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]    --> src/runtime_parser.rs:242:111
[INFO] [stdout]     |
[INFO] [stdout] 242 |     /// be associated with grammar symbols.  Use in conjuction with [LBox::downcast], [LBox::upcast] and the [lbdown], [lbup] macros.
[INFO] [stdout]     |                                                                                                               ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(rustdoc::macro_rules_fallback)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]    --> src/runtime_parser.rs:242:121
[INFO] [stdout]     |
[INFO] [stdout] 242 |     /// be associated with grammar symbols.  Use in conjuction with [LBox::downcast], [LBox::upcast] and the [lbdown], [lbup] macros.
[INFO] [stdout]     |                                                                                                                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]   --> src/generic_absyn.rs:34:25
[INFO] [stdout]    |
[INFO] [stdout] 34 | //! convenience macros [lbup] and [lbdown].
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]   --> src/generic_absyn.rs:34:36
[INFO] [stdout]    |
[INFO] [stdout] 34 | //! convenience macros [lbup] and [lbdown].
[INFO] [stdout]    |                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]   --> src/generic_absyn.rs:40:54
[INFO] [stdout]    |
[INFO] [stdout] 40 | //! and the convenience macros [lbup], [lbdown] and [lbget]
[INFO] [stdout]    |                                                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `rustlr`
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]    --> src/zc_parser.rs:285:111
[INFO] [stdout]     |
[INFO] [stdout] 285 |     /// be associated with grammar symbols.  Use in conjuction with [LBox::downcast], [LBox::upcast] and the [lbdown], [lbup] macros.
[INFO] [stdout]     |                                                                                                               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]    --> src/zc_parser.rs:285:121
[INFO] [stdout]     |
[INFO] [stdout] 285 |     /// be associated with grammar symbols.  Use in conjuction with [LBox::downcast], [LBox::upcast] and the [lbdown], [lbup] macros.
[INFO] [stdout]     |                                                                                                                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Caused by:
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]    --> src/generic_absyn.rs:439:17
[INFO] [stdout]     |
[INFO] [stdout] 439 | /// similar to [lbdown], but also extracts the boxed expression
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name rustlr src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=5225c5c93c2c8bde -L dependency=/opt/rustwide/target/debug/deps --extern regex=/opt/rustwide/target/debug/deps/libregex-ab873dca2bd12fcb.rmeta --cap-lints=forbid --crate-version 0.2.4` (exit status: 1)
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "683b9cafb352ddcd7e9a92e2a359fa91e3945f96a8d0764a051f26affede73db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "683b9cafb352ddcd7e9a92e2a359fa91e3945f96a8d0764a051f26affede73db", kill_on_drop: false }`
[INFO] [stdout] 683b9cafb352ddcd7e9a92e2a359fa91e3945f96a8d0764a051f26affede73db