[INFO] fetching crate syn-impersonated 0.1.18...
[INFO] documenting syn-impersonated-0.1.18 against try#6fd27704e643b25711e6a97ec2b04873b411b97d for pr-96676
[INFO] extracting crate syn-impersonated 0.1.18 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate syn-impersonated 0.1.18 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 syn-impersonated 0.1.18
[INFO] finished tweaking crates.io crate syn-impersonated 0.1.18
[INFO] tweaked toml for crates.io crate syn-impersonated 0.1.18 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bdc9e720ef4b74b0fa4aaa7f8666e896d34b13a9e0b2854bdce55ae1a955ea4a
[INFO] running `Command { std: "docker" "start" "-a" "bdc9e720ef4b74b0fa4aaa7f8666e896d34b13a9e0b2854bdce55ae1a955ea4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdc9e720ef4b74b0fa4aaa7f8666e896d34b13a9e0b2854bdce55ae1a955ea4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdc9e720ef4b74b0fa4aaa7f8666e896d34b13a9e0b2854bdce55ae1a955ea4a", kill_on_drop: false }`
[INFO] [stdout] bdc9e720ef4b74b0fa4aaa7f8666e896d34b13a9e0b2854bdce55ae1a955ea4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] f807a880f03f191bc6fcd6d56ce2009455d94ede38dd89e44baf0a1506d42ffb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f807a880f03f191bc6fcd6d56ce2009455d94ede38dd89e44baf0a1506d42ffb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2-impersonated v0.1.1
[INFO] [stderr]     Checking unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn-impersonated v0.1.18 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking quote-impersonated v0.1.0
[INFO] [stderr]  Documenting syn-impersonated v0.1.18 (/opt/rustwide/workdir)
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]   --> src/error.rs:30:37
[INFO] [stdout]    |
[INFO] [stdout] 30 | /// When parsing macro input, the [`parse_macro_input!`] macro handles the
[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/parse.rs:244:13
[INFO] [stdout]     |
[INFO] [stdout] 244 | /// - The [`parse_macro_input!`] macro if parsing input of a procedural macro;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]    --> src/error.rs:192:15
[INFO] [stdout]     |
[INFO] [stdout] 192 |     /// The [`parse_macro_input!`] macro provides a convenient way to invoke
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `parse::Parse`
[INFO] [stdout]  --> src/parse_quote.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | /// [`Parse`]: parse::Parse
[INFO] [stdout]   |                ^^^^^^^^^^^^ `parse` is a function, not a module or type, and cannot have associated items
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `punctuated::Punctuated`
[INFO] [stdout]   --> src/parse_quote.rs:61:27
[INFO] [stdout]    |
[INFO] [stdout] 61 | /// [`Punctuated<T, P>`]: punctuated::Punctuated
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^ no item named `punctuated` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Block::parse_within`
[INFO] [stdout]   --> src/parse_quote.rs:62:20
[INFO] [stdout]    |
[INFO] [stdout] 62 | /// [`Vec<Stmt>`]: Block::parse_within
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^ no item named `Block` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `parse::ParseBuffer::peek`
[INFO] [stdout]   --> src/custom_keyword.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 | /// [Peeking]: parse::ParseBuffer::peek
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^ no item named `parse` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `parse::ParseBuffer::parse`
[INFO] [stdout]   --> src/custom_keyword.rs:30:16
[INFO] [stdout]    |
[INFO] [stdout] 30 | /// [Parsing]: parse::ParseBuffer::parse
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^ no item named `parse` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `parse::ParseBuffer::peek`
[INFO] [stdout]   --> src/custom_punctuation.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 | /// [Peeking]: parse::ParseBuffer::peek
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^ no item named `parse` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `parse::ParseBuffer::parse`
[INFO] [stdout]   --> src/custom_punctuation.rs:26:16
[INFO] [stdout]    |
[INFO] [stdout] 26 | /// [Parsing]: parse::ParseBuffer::parse
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^ no item named `parse` in scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `syn-impersonated`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name syn_impersonated src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote-impersonated"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=f49ec732d12cac6e -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2_impersonated=/opt/rustwide/target/debug/deps/libproc_macro2_impersonated-4217a2ffc2c03273.rmeta --extern quote_impersonated=/opt/rustwide/target/debug/deps/libquote_impersonated-fe228d0de259fde5.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-1eb5fc330d4970ca.rmeta --cap-lints=forbid --crate-version 0.1.18` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "f807a880f03f191bc6fcd6d56ce2009455d94ede38dd89e44baf0a1506d42ffb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f807a880f03f191bc6fcd6d56ce2009455d94ede38dd89e44baf0a1506d42ffb", kill_on_drop: false }`
[INFO] [stdout] f807a880f03f191bc6fcd6d56ce2009455d94ede38dd89e44baf0a1506d42ffb