[INFO] fetching crate mongodb-ext 4.3.2...
[INFO] documenting mongodb-ext-4.3.2 against try#6fd27704e643b25711e6a97ec2b04873b411b97d for pr-96676
[INFO] extracting crate mongodb-ext 4.3.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mongodb-ext 4.3.2 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 mongodb-ext 4.3.2
[INFO] finished tweaking crates.io crate mongodb-ext 4.3.2
[INFO] tweaked toml for crates.io crate mongodb-ext 4.3.2 written to /workspace/builds/worker-2/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 }`
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[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 6bc0c82a854598105d3b929a0fc2b96c994f54279ea90236b13092d43dc3e416
[INFO] running `Command { std: "docker" "start" "-a" "6bc0c82a854598105d3b929a0fc2b96c994f54279ea90236b13092d43dc3e416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6bc0c82a854598105d3b929a0fc2b96c994f54279ea90236b13092d43dc3e416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bc0c82a854598105d3b929a0fc2b96c994f54279ea90236b13092d43dc3e416", kill_on_drop: false }`
[INFO] [stdout] 6bc0c82a854598105d3b929a0fc2b96c994f54279ea90236b13092d43dc3e416
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 3f90e47186b0df966586f5e0b8a95836394919801a902a873aeda55108466f94
[INFO] running `Command { std: "docker" "start" "-a" "3f90e47186b0df966586f5e0b8a95836394919801a902a873aeda55108466f94", kill_on_drop: false }`
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[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling typed-builder v0.9.1
[INFO] [stderr]    Compiling mongodb-ext-derive v1.1.2
[INFO] [stderr]    Compiling darling_macro v0.13.4
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[INFO] [stderr]     Checking mongodb v2.2.1
[INFO] [stderr]     Checking mongodb-gridfs v0.2.2
[INFO] [stderr]  Documenting mongodb-ext v4.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]   --> src/traits.rs:10:76
[INFO] [stdout]    |
[INFO] [stdout] 10 | /// Trait that is implemented automatically on each collection struct by [`mongo_db`].
[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/traits.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | /// Async trait that is implemented automatically on the database handler struct by [`mongo_db`].
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the link appears in this line:
[INFO] [stdout]            
[INFO] [stdout]            Async trait that is implemented automatically on the database handler struct by [`mongo_db`].
[INFO] [stdout]                                                                                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `mongodb-ext`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name mongodb_ext src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="mongodb-gridfs"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=8db5e66dde13ad81 -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-191e038635ee36bf.so --extern mongodb=/opt/rustwide/target/debug/deps/libmongodb-526297b811b80f33.rmeta --extern mongodb_ext_derive=/opt/rustwide/target/debug/deps/libmongodb_ext_derive-ef1a4f4822e79771.so --extern mongodb_gridfs=/opt/rustwide/target/debug/deps/libmongodb_gridfs-1e81e8a9d8007128.rmeta --extern paste=/opt/rustwide/target/debug/deps/libpaste-85067c7f435fa569.so --extern serde=/opt/rustwide/target/debug/deps/libserde-234fff2e7d2359f7.rmeta --extern typed_builder=/opt/rustwide/target/debug/deps/libtyped_builder-7c1752dd6e75dc9b.so --cap-lints=forbid --crate-version 4.3.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "3f90e47186b0df966586f5e0b8a95836394919801a902a873aeda55108466f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f90e47186b0df966586f5e0b8a95836394919801a902a873aeda55108466f94", kill_on_drop: false }`
[INFO] [stdout] 3f90e47186b0df966586f5e0b8a95836394919801a902a873aeda55108466f94