ICE in rustdoc when useing a non-macro attribute

[QuietMisdreavus]

use proc_macro_attribute;

$ RUST_BACKTRACE=1 rustdoc +nightly z.rs --edition 2018
error: internal compiler error: src/librustc/hir/def.rs:257: attempted .def_id() on invalid def: NonMacroAttr(Builtin)

thread 'rustc' panicked at 'Box<Any>', src/librustc_errors/lib.rs:605:9
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
             at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
   1: std::sys_common::backtrace::_print
             at src/libstd/sys_common/backtrace.rs:70
   2: std::panicking::default_hook::{{closure}}
             at src/libstd/sys_common/backtrace.rs:58
             at src/libstd/panicking.rs:200
   3: std::panicking::default_hook
             at src/libstd/panicking.rs:215
   4: std::panicking::rust_panic_with_hook
             at src/libstd/panicking.rs:478
   5: std::panicking::begin_panic
   6: rustc_errors::Handler::bug
   7: rustc::util::bug::opt_span_bug_fmt::{{closure}}
   8: rustc::ty::context::tls::with_opt::{{closure}}
   9: rustc::ty::context::tls::with_context_opt
  10: rustc::ty::context::tls::with_opt
  11: rustc::util::bug::opt_span_bug_fmt
  12: rustc::util::bug::bug_fmt
  13: rustc::hir::def::Def::def_id::{{closure}}
  14: rustc::hir::def::Def::def_id
  15: rustdoc::clean::register_def
             at src/librustdoc/clean/mod.rs:3809
  16: <rustdoc::doctree::Import as rustdoc::clean::Clean<alloc::vec::Vec<rustdoc::clean::Item>>>::clean                                       [20/1873]
             at src/librustdoc/clean/mod.rs:3824
             at src/librustdoc/clean/mod.rs:3586
  17: <alloc::vec::Vec<T> as alloc::vec::SpecExtend<T, I>>::spec_extend
             at src/librustdoc/clean/mod.rs:591
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/libcore/ops/function.rs:279
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/libcore/option.rs:414
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/libcore/iter/adapters/mod.rs:567
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/libcore/iter/adapters/flatten.rs:218
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/libcore/iter/adapters/flatten.rs:48
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/liballoc/vec.rs:1933
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/liballoc/vec.rs:1830
  18: <rustdoc::doctree::Module as rustdoc::clean::Clean<rustdoc::clean::Item>>::clean
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/liballoc/vec.rs:1794
             at src/librustdoc/clean/mod.rs:591
  19: <rustdoc::visit_ast::RustdocVisitor<'a, 'tcx, 'rcx> as rustdoc::clean::Clean<rustdoc::clean::Crate>>::clean
             at src/librustdoc/clean/mod.rs:162
  20: rustdoc::core::run_core::{{closure}}::{{closure}}
             at src/librustdoc/core.rs:540
  21: <std::thread::local::LocalKey<T>>::with
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc_driver/driver.rs:1318
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc/ty/context.rs:1990
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc/ty/context.rs:1956
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc/ty/context.rs:1889
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc/ty/context.rs:1955
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc/ty/context.rs:1989
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc/ty/context.rs:1944
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/libstd/thread/local.rs:296
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/libstd/thread/local.rs:242
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc/ty/context.rs:1936
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/libstd/thread/local.rs:296
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/libstd/thread/local.rs:242
  22: rustc::ty::context::TyCtxt::create_and_enter
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc/ty/context.rs:1928
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc/ty/context.rs:1967
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc/ty/context.rs:1287
  23: rustc_driver::driver::phase_3_run_analysis_passes
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc_driver/driver.rs:1208
  24: <scoped_tls::ScopedKey<T>>::set
             at src/librustdoc/core.rs:485
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc_driver/driver.rs:65
             at /cargo/registry/src/gh.neting.cc-1ecc6299db9ec823/scoped-tls-0.1.2/src/lib.rs:155
  25: rustdoc::core::run_core
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/librustc_driver/driver.rs:64
             at src/librustdoc/core.rs:391
  26: <scoped_tls::ScopedKey<T>>::set
             at src/librustdoc/lib.rs:435
             at /cargo/registry/src/gh.neting.cc-1ecc6299db9ec823/scoped-tls-0.1.2/src/lib.rs:155
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/libsyntax/lib.rs:112
             at /cargo/registry/src/gh.neting.cc-1ecc6299db9ec823/scoped-tls-0.1.2/src/lib.rs:155
  27: syntax::with_globals
             at /rustc/f29b4fbd742b8180edb5e06cad0977b08881541b/src/libsyntax/lib.rs:111

note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports

note: rustc 1.34.0-nightly (f29b4fbd7 2019-01-31) running on x86_64-unknown-linux-gnu

Error found when documenting the diff-enum crate on docs.rs.

[QuietMisdreavus]

ICE also exists on rust 1.32.0.