< -39,350,149  ???:
   -6,659,324    <&mut serde_json::ser::Serializer<&mut alloc::boxed::Box<dyn std::io::Write + core::marker::Send>> as serde_core::ser::Serializer>::serialize_str
   -4,215,955    <std::io::buffered::bufwriter::BufWriter<std::io::stdio::Stderr> as std::io::Write>::write_all
   -2,730,341    <rustc_errors::styled_buffer::StyledBuffer>::putc
   -2,580,516    <rustc_span::source_map::SourceMap>::lookup_char_pos
   -2,511,566    rustc_errors::emitter::normalize_whitespace
   -2,492,928    <rustc_errors::styled_buffer::StyledBuffer>::render
   -2,307,220    <rustc_span::SourceFile>::get_line
   -1,407,502    <rustc_errors::emitter::HumanEmitter>::draw_line
   -1,249,210    _rjem_je_arena_ralloc
     -942,782    <rustc_errors::styled_buffer::StyledBuffer>::ensure_lines
     -868,556    realloc
     -818,220    core::str::count::do_count_chars
     -803,060    <serde_json::ser::Compound<&mut alloc::boxed::Box<dyn std::io::Write + core::marker::Send>, serde_json::ser::CompactFormatter> as serde_core::ser::SerializeStruct>::serialize_field::<usize>
     -733,739    free
     -691,479    <rustc_errors::emitter::HumanEmitter>::emit_messages_default_inner::{closure#0}
     -567,521    core::fmt::write
     -544,679    rustc_incremental::persist::load::setup_dep_graph
     -535,045    <<rustc_errors::json::Diagnostic>::from_errors_diagnostic::BufWriter as std::io::Write>::write
     -510,903    malloc
     -464,106    <rustc_errors::json::DiagnosticSpan as serde_core::ser::Serialize>::serialize::<&mut serde_json::ser::Serializer<&mut alloc::boxed::Box<dyn std::io::Write + core::marker::Send>>>
     -422,919    <anstyle::style::Style>::fmt_to
     -326,780    <hashbrown::raw::RawTable<((usize, rustc_data_structures::stable_hasher::HashingControls), rustc_data_structures::fingerprint::Fingerprint)>>::reserve_rehash::<hashbrown::map::make_hasher<(usize, rustc_data_structures::stable_hasher::HashingControls), rustc_data_structures::fingerprint::Fingerprint, rustc_hash::FxBuildHasher>::{closure#0}>
      326,776    <hashbrown::raw::RawTable<((*const (), rustc_data_structures::stable_hasher::HashingControls), rustc_data_structures::fingerprint::Fingerprint)>>::reserve_rehash::<hashbrown::map::make_hasher<(*const (), rustc_data_structures::stable_hasher::HashingControls), rustc_data_structures::fingerprint::Fingerprint, rustc_hash::FxBuildHasher>::{closure#0}>
     -303,372    <std::io::default_write_fmt::Adapter<<rustc_errors::json::Diagnostic>::from_errors_diagnostic::BufWriter> as core::fmt::Write>::write_str
     -261,576    <rustc_errors::json::DiagnosticSpanLine>::from_span
     -258,560    <rustc_errors::styled_buffer::StyledBuffer>::append
     -229,844    <rustc_span::source_map::SourceMap>::span_to_lines
     -217,550    core::fmt::Formatter::pad
     -196,577    _rjem_je_arena_cache_bin_fill_small
     -186,318    rustc_span::char_width
     -165,353    <rustc_span::span_encoding::Span>::to
     -154,852    rustc_errors::emitter::emit_to_destination
     -129,414    _rjem_je_malloc_default
     -104,344    <rustc_errors::json::DiagnosticSpan>::from_span_full::<core::iter::sources::from_fn::FromFn<<rustc_span::span_encoding::Span>::macro_backtrace::{closure#0}>>
     -101,388    <anstyle::style::Style as core::fmt::Display>::fmt
      -92,904    <<rustc_errors::json::Diagnostic>::from_errors_diagnostic::BufWriter as std::io::Write>::write_fmt
      -90,530    <anstyle::color::DisplayBuffer>::write_str
      -87,516    <rustc_span::source_map::SourceMap>::span_to_snippet
      -85,554    rustc_span::str_width
      -83,035    <alloc::string::String as core::fmt::Write>::write_str
      -80,730    <serde_json::ser::Compound<&mut alloc::boxed::Box<dyn std::io::Write + core::marker::Send>, serde_json::ser::CompactFormatter> as serde_core::ser::SerializeStruct>::serialize_field::<u32>
      -79,817    <alloc::raw_vec::RawVec<rustc_expand::mbe::TokenTree>>::grow_one
       79,817    <alloc::raw_vec::RawVec<object::write::Symbol>>::grow_one
      -66,234    <rustc_errors::snippet::Style>::anstyle
      -55,212    <core::str::lossy::Utf8Chunks as core::iter::traits::iterator::Iterator>::next
      -54,930    core::ptr::drop_in_place::<rustc_errors::json::DiagnosticSpan>
      -54,173    <serde_json::ser::Compound<&mut alloc::boxed::Box<dyn std::io::Write + core::marker::Send>, serde_json::ser::CompactFormatter> as serde_core::ser::SerializeStruct>::serialize_field::<core::option::Option<alloc::string::String>>
      -53,844    rustc_middle::ty::codec::encode_with_shorthand::<rustc_middle::query::on_disk_cache::CacheEncoder, rustc_middle::ty::Ty, <rustc_middle::query::on_disk_cache::CacheEncoder as rustc_middle::ty::codec::TyEncoder>::type_shorthands>
      -53,628    <rustc_errors::emitter::HumanEmitter>::draw_line_num
      -52,752    rustc_middle::lint::explain_lint_level_source
      -50,079    <rustc_errors::emitter::HumanEmitter as rustc_errors::emitter::Emitter>::emit_diagnostic
      -49,110    _rjem_je_tcache_bin_flush_small
      -46,860    <core::iter::sources::from_fn::FromFn<<rustc_span::span_encoding::Span>::macro_backtrace::{closure#0}> as core::iter::traits::iterator::Iterator>::next
      -45,249    <rustc_errors::emitter::FileWithAnnotatedLines>::collect_annotations::add_annotation_to_file
      -44,424    <rustc_span::source_map::SourceMap>::span_until_char
      -42,623    <core::str::iter::SplitInternal<char>>::next

<  -1,618,401  ./string/../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:__memcpy_avx_unaligned_erms

<     -47,730  ./nptl/./nptl/pthread_mutex_trylock.c:pthread_mutex_trylock@@GLIBC_2.34

warning: `syn` (lib) generated 19 warnings (run `cargo fix --lib -p syn` to apply 19 suggestions)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.09s

warning: `syn` (lib) generated 67 warnings (45 duplicates) (run `cargo fix --lib -p syn` to apply 22 suggestions)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.28s

warning: lint `repr_transparent_external_private_fields` has been renamed to `repr_transparent_non_zst_fields`
   --> src/token.rs:146:28
    |
146 |     #[allow(unknown_lints, repr_transparent_external_private_fields)] // False positive: https://github.com/rust-lang/rust/issues/78586#issuecomment-1722680482
    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `repr_transparent_non_zst_fields`
    |
    = note: `#[warn(renamed_and_removed_lints)]` on by default

warning: lint `repr_transparent_external_private_fields` has been renamed to `repr_transparent_non_zst_fields`
   --> src/token.rs:327:36
    |
327 |               #[allow(unknown_lints, repr_transparent_external_private_fields)] // False positive: https://github.com/rust-lang/rust/issues/78586#issuecomment-1722680482
    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `repr_transparent_non_zst_fields`
...
521 | / define_punctuation_structs! {
522 | |     "_" pub struct Underscore/1 /// wildcard patterns, inferred types, unnamed items in constants, extern crates, use declarations, and destructuring assignment
523 | | }
    | |_- in this macro invocation
    |
    = note: this warning originates in the macro `define_punctuation_structs` (in Nightly builds, run with -Z macro-backtrace for more info)

warning: lint `repr_transparent_external_private_fields` has been renamed to `repr_transparent_non_zst_fields`
   --> src/token.rs:327:36
    |
327 |               #[allow(unknown_lints, repr_transparent_external_private_fields)] // False positive: https://github.com/rust-lang/rust/issues/78586#issuecomment-1722680482
    |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `repr_transparent_non_zst_fields`