[INFO] fetching crate completion 0.2.1...
[INFO] documenting completion-0.2.1 against try#6fd27704e643b25711e6a97ec2b04873b411b97d for pr-96676
[INFO] extracting crate completion 0.2.1 into /workspace/builds/worker-97/source
[INFO] validating manifest of crates.io crate completion 0.2.1 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 completion 0.2.1
[INFO] finished tweaking crates.io crate completion 0.2.1
[INFO] tweaked toml for crates.io crate completion 0.2.1 written to /workspace/builds/worker-97/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-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] e2bb6399e075d6c1fbec40572a9d447185ca8d8dbb31b8323f0c4951aeb7b36f
[INFO] running `Command { std: "docker" "start" "-a" "e2bb6399e075d6c1fbec40572a9d447185ca8d8dbb31b8323f0c4951aeb7b36f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2bb6399e075d6c1fbec40572a9d447185ca8d8dbb31b8323f0c4951aeb7b36f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2bb6399e075d6c1fbec40572a9d447185ca8d8dbb31b8323f0c4951aeb7b36f", kill_on_drop: false }`
[INFO] [stdout] e2bb6399e075d6c1fbec40572a9d447185ca8d8dbb31b8323f0c4951aeb7b36f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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] 53a2f6d7547a33208540f120cdf995d4c3fc84b8c990cd78b6b91c2081f5566a
[INFO] running `Command { std: "docker" "start" "-a" "53a2f6d7547a33208540f120cdf995d4c3fc84b8c990cd78b6b91c2081f5566a", 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 futures-core v0.3.21
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]    Compiling completion v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking aliasable v0.1.3
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking completion-core v0.2.0
[INFO] [stderr]     Checking completion-io v0.2.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling completion-macro v0.2.0
[INFO] [stderr]  Documenting completion v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]   --> src/macros/future.rs:15:16
[INFO] [stdout]    |
[INFO] [stdout] 15 | /// See also [`completion_async!`] for more details.
[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/macros/future.rs:147:16
[INFO] [stdout]     |
[INFO] [stdout] 147 | /// See also [`completion_async!`] for more details.
[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 `completion`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name completion src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="aliasable"' --cfg 'feature="alloc"' --cfg 'feature="completion-io"' --cfg 'feature="completion-macro"' --cfg 'feature="default"' --cfg 'feature="macro"' --cfg 'feature="memchr"' --cfg 'feature="std"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=ca92bcb11ca33d28 -L dependency=/opt/rustwide/target/debug/deps --extern aliasable=/opt/rustwide/target/debug/deps/libaliasable-82582c1fe263fc49.rmeta --extern atomic_waker=/opt/rustwide/target/debug/deps/libatomic_waker-94cd2f88b6f3d21a.rmeta --extern completion_core=/opt/rustwide/target/debug/deps/libcompletion_core-d1e0040dddaa9049.rmeta --extern completion_io=/opt/rustwide/target/debug/deps/libcompletion_io-c0da6749b093ce37.rmeta --extern completion_macro=/opt/rustwide/target/debug/deps/libcompletion_macro-c3ab8e899f692650.so --extern concurrent_queue=/opt/rustwide/target/debug/deps/libconcurrent_queue-91487be60ae8e0bf.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-b16e3589cc235645.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-09421297eb8835cb.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-194da388bfcdfa6d.rmeta --cap-lints=forbid --crate-version 0.2.1 --cfg doc_cfg` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "53a2f6d7547a33208540f120cdf995d4c3fc84b8c990cd78b6b91c2081f5566a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53a2f6d7547a33208540f120cdf995d4c3fc84b8c990cd78b6b91c2081f5566a", kill_on_drop: false }`
[INFO] [stdout] 53a2f6d7547a33208540f120cdf995d4c3fc84b8c990cd78b6b91c2081f5566a