[INFO] fetching crate gtk-test 0.15.0...
[INFO] documenting gtk-test-0.15.0 against try#6fd27704e643b25711e6a97ec2b04873b411b97d for pr-96676
[INFO] extracting crate gtk-test 0.15.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gtk-test 0.15.0 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 gtk-test 0.15.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate gtk-test 0.15.0
[INFO] tweaked toml for crates.io crate gtk-test 0.15.0 written to /workspace/builds/worker-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 58d077affcf19f8e0833da992062a56341423caf769b03d2638e82917046714f
[INFO] running `Command { std: "docker" "start" "-a" "58d077affcf19f8e0833da992062a56341423caf769b03d2638e82917046714f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58d077affcf19f8e0833da992062a56341423caf769b03d2638e82917046714f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58d077affcf19f8e0833da992062a56341423caf769b03d2638e82917046714f", kill_on_drop: false }`
[INFO] [stdout] 58d077affcf19f8e0833da992062a56341423caf769b03d2638e82917046714f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] b2714cf1868ceafbf55d4ec3483b9dd6209769f0f39fa194b245bd3f2b412d68
[INFO] running `Command { std: "docker" "start" "-a" "b2714cf1868ceafbf55d4ec3483b9dd6209769f0f39fa194b245bd3f2b412d68", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling libc v0.2.125
[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 version_check v0.9.4
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling gio v0.15.11
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling cfg-expr v0.10.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling gtk v0.15.5
[INFO] [stderr]    Compiling enigo v0.0.14
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling field-offset v0.3.4
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling system-deps v6.0.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling glib-sys v0.15.10
[INFO] [stderr]    Compiling gobject-sys v0.15.10
[INFO] [stderr]    Compiling gio-sys v0.15.10
[INFO] [stderr]    Compiling pango-sys v0.15.10
[INFO] [stderr]    Compiling cairo-sys-rs v0.15.1
[INFO] [stderr]    Compiling atk-sys v0.15.1
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.15.10
[INFO] [stderr]    Compiling gdk-sys v0.15.1
[INFO] [stderr]    Compiling gtk-sys v0.15.3
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling glib-macros v0.15.11
[INFO] [stderr]    Compiling gtk3-macros v0.15.4
[INFO] [stderr]     Checking glib v0.15.11
[INFO] [stderr]     Checking cairo-rs v0.15.11
[INFO] [stderr]     Checking pango v0.15.10
[INFO] [stderr]     Checking atk v0.15.1
[INFO] [stderr]     Checking gdk-pixbuf v0.15.11
[INFO] [stderr]     Checking gdk v0.15.4
[INFO] [stderr]  Documenting gtk-test v0.15.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]  --> src/observer.rs:6:43
[INFO] [stdout]   |
[INFO] [stdout] 6 | /// It's recommended to use it with the [`observer_new`] macro.
[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/observer.rs:33:80
[INFO] [stdout]    |
[INFO] [stdout] 33 |     /// It's recommended to not use it directly as is but instead to use the [`observer_new`] macro.
[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 `gtk-test`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name gtk_test src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=fcd95d3a54d88cb6 -L dependency=/opt/rustwide/target/debug/deps --extern enigo=/opt/rustwide/target/debug/deps/libenigo-5513556b29ba9822.rmeta --extern gtk=/opt/rustwide/target/debug/deps/libgtk-6634efc6be82f91b.rmeta --cap-lints=forbid --crate-version 0.15.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "b2714cf1868ceafbf55d4ec3483b9dd6209769f0f39fa194b245bd3f2b412d68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2714cf1868ceafbf55d4ec3483b9dd6209769f0f39fa194b245bd3f2b412d68", kill_on_drop: false }`
[INFO] [stdout] b2714cf1868ceafbf55d4ec3483b9dd6209769f0f39fa194b245bd3f2b412d68