[INFO] fetching crate modular-bitfield-msb-impl 0.11.2...
[INFO] documenting modular-bitfield-msb-impl-0.11.2 against try#6fd27704e643b25711e6a97ec2b04873b411b97d for pr-96676
[INFO] extracting crate modular-bitfield-msb-impl 0.11.2 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate modular-bitfield-msb-impl 0.11.2 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 modular-bitfield-msb-impl 0.11.2
[INFO] finished tweaking crates.io crate modular-bitfield-msb-impl 0.11.2
[INFO] tweaked toml for crates.io crate modular-bitfield-msb-impl 0.11.2 written to /workspace/builds/worker-29/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-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 107b841475fcfd04af75af751fd2f148816ee0004aecf32d1781d22082ef8a72
[INFO] running `Command { std: "docker" "start" "-a" "107b841475fcfd04af75af751fd2f148816ee0004aecf32d1781d22082ef8a72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "107b841475fcfd04af75af751fd2f148816ee0004aecf32d1781d22082ef8a72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "107b841475fcfd04af75af751fd2f148816ee0004aecf32d1781d22082ef8a72", kill_on_drop: false }`
[INFO] [stdout] 107b841475fcfd04af75af751fd2f148816ee0004aecf32d1781d22082ef8a72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] ed6ffd3a96b66f6fed0940134595d62f2a58dbcf10797c3b8c08e320e360396a
[INFO] running `Command { std: "docker" "start" "-a" "ed6ffd3a96b66f6fed0940134595d62f2a58dbcf10797c3b8c08e320e360396a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]     Checking unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]     Checking quote v1.0.18
[INFO] [stderr]  Documenting modular-bitfield-msb-impl v0.11.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]   --> src/errors.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | /// than [`format_err`].
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(rustdoc::macro_rules_fallback)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `bitfield`
[INFO] [stdout]    --> src/bitfield/config.rs:192:33
[INFO] [stdout]     |
[INFO] [stdout] 192 |     /// Sets the `bytes: int` #[bitfield] parameter to the given value.
[INFO] [stdout]     |                                 ^^^^^^^^ no item named `bitfield` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `bitfield`
[INFO] [stdout]    --> src/bitfield/config.rs:207:32
[INFO] [stdout]     |
[INFO] [stdout] 207 |     /// Sets the `bits: int` #[bitfield] parameter to the given value.
[INFO] [stdout]     |                                ^^^^^^^^ no item named `bitfield` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `bitfield`
[INFO] [stdout]    --> src/bitfield/config.rs:222:35
[INFO] [stdout]     |
[INFO] [stdout] 222 |     /// Sets the `filled: bool` #[bitfield] parameter to the given value.
[INFO] [stdout]     |                                   ^^^^^^^^ no item named `bitfield` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `bitfield`
[INFO] [stdout]    --> src/bitfield/config.rs:237:57
[INFO] [stdout]     |
[INFO] [stdout] 237 |     /// Registers the `#[repr(uN)]` attribute for the #[bitfield] macro.
[INFO] [stdout]     |                                                         ^^^^^^^^ no item named `bitfield` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `bitfield`
[INFO] [stdout]    --> src/bitfield/config.rs:252:62
[INFO] [stdout]     |
[INFO] [stdout] 252 |     /// Registers the `#[derive(Debug)]` attribute for the #[bitfield] macro.
[INFO] [stdout]     |                                                              ^^^^^^^^ no item named `bitfield` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `bitfield`
[INFO] [stdout]    --> src/bitfield/config.rs:271:74
[INFO] [stdout]     |
[INFO] [stdout] 271 |     /// Registers the `#[derive(BitfieldSpecifier)]` attribute for the #[bitfield] macro.
[INFO] [stdout]     |                                                                          ^^^^^^^^ no item named `bitfield` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `bitfield`
[INFO] [stdout]    --> src/bitfield/config.rs:290:54
[INFO] [stdout]     |
[INFO] [stdout] 290 |     /// Pushes another retained attribute that the #[bitfield] macro is going to re-expand and ignore.
[INFO] [stdout]     |                                                      ^^^^^^^^ no item named `bitfield` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `bitfield`
[INFO] [stdout]    --> src/bitfield/expand.rs:357:64
[INFO] [stdout]     |
[INFO] [stdout] 357 |     /// Generates `From` impls for a `#[repr(uN)]` annotated #[bitfield] struct.
[INFO] [stdout]     |                                                                ^^^^^^^^ no item named `bitfield` in scope
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `modular-bitfield-msb-impl`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type proc-macro --crate-name modular_bitfield_msb_impl src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=e9455e7622dafe2c -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-eedf5e06566903f0.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-723d1542d01fe3eb.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-32b4fce97f0ff098.rmeta --extern proc_macro --cap-lints=forbid --crate-version 0.11.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "ed6ffd3a96b66f6fed0940134595d62f2a58dbcf10797c3b8c08e320e360396a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed6ffd3a96b66f6fed0940134595d62f2a58dbcf10797c3b8c08e320e360396a", kill_on_drop: false }`
[INFO] [stdout] ed6ffd3a96b66f6fed0940134595d62f2a58dbcf10797c3b8c08e320e360396a