1.98 beta rustdoc regression: "reached the configured maximum number of stack frames"

[theemathas]

This regression was found by the 1.98 beta rustdoc crater run.

[INFO] [stdout] error[E0080]: reached the configured maximum number of stack frames
[INFO] [stdout]  --> /rustc/6b3fa26749ab40e159b2dd5cf577acaaf5902772/library/core/src/fmt/num_buffer.rs:26:45
[INFO] [stdout]   |
[INFO] [stdout]   = note: evaluation of `<usize as core::fmt::NumBufferTrait>::Buf::{constant#0}` failed inside this call
[INFO] [stdout]  ::: /rustc/6b3fa26749ab40e159b2dd5cf577acaaf5902772/library/core/src/fmt/num_buffer.rs:39:1
[INFO] [stdout]   |
[INFO] [stdout]   = note: in this macro invocation
[INFO] [stdout] note: inside `core::num::<impl usize>::checked_ilog10`
[INFO] [stdout]  --> /rustc/6b3fa26749ab40e159b2dd5cf577acaaf5902772/library/core/src/num/uint_macros.rs:1914:32
[INFO] [stdout]  --> /rustc/6b3fa26749ab40e159b2dd5cf577acaaf5902772/library/core/src/num/mod.rs:1449:4
[INFO] [stdout]  ::: /rustc/6b3fa26749ab40e159b2dd5cf577acaaf5902772/library/core/src/num/mod.rs:1473:5
[INFO] [stdout]   |
[INFO] [stdout]   = note: in this macro invocation
[INFO] [stdout] note: inside `core::num::NonZero::<usize>::ilog10`
[INFO] [stdout]  --> /rustc/6b3fa26749ab40e159b2dd5cf577acaaf5902772/library/core/src/num/nonzero.rs:1818:12
[INFO] [stdout]  ::: /rustc/6b3fa26749ab40e159b2dd5cf577acaaf5902772/library/core/src/num/nonzero.rs:2506:1
[INFO] [stdout]   |
[INFO] [stdout]   = note: in this macro invocation
[INFO] [stdout] note: inside `core::num::imp::int_log10::usize`
[INFO] [stdout]  --> /rustc/6b3fa26749ab40e159b2dd5cf577acaaf5902772/library/core/src/num/imp/int_log10.rs:132:4
[INFO] [stdout] note: inside `core::num::imp::int_log10::u64`
[INFO] [stdout]  --> /rustc/6b3fa26749ab40e159b2dd5cf577acaaf5902772/library/core/src/num/imp/int_log10.rs:104:21
[INFO] [stdout]  ::: /rustc/6b3fa26749ab40e159b2dd5cf577acaaf5902772/library/core/src/num/imp/int_log10.rs:117:1
[INFO] [stdout]   |
[INFO] [stdout]   = note: in this macro invocation
[INFO] [stdout] note: inside `core::ub_checks::check_language_ub`
[INFO] [stdout]  --> /rustc/6b3fa26749ab40e159b2dd5cf577acaaf5902772/library/core/src/intrinsics/mod.rs:2458:8
[INFO] [stdout]  --> /rustc/6b3fa26749ab40e159b2dd5cf577acaaf5902772/library/core/src/ub_checks.rs:98:4
[INFO] [stdout]  ::: /rustc/6b3fa26749ab40e159b2dd5cf577acaaf5902772/library/core/src/ub_checks.rs:107:5
[INFO] [stdout]   |
[INFO] [stdout]   = note: in this macro invocation
[INFO] [stdout]   = note: this error originates in the macro `impl_NumBufferTrait` which comes from the expansion of the macro `const_eval_select` (in Nightly builds, run with -Z macro-backtrace for more info)

• https://crater-reports.s3.amazonaws.com/beta-rustdoc-1.98-3/1.98.0-beta.1/reg/indented-blocks-0.6.0/log.txt

[theemathas]

Minimal reproducer: run cargo +beta doc on the following code in lib.rs

#![recursion_limit = "8"]

(Yes, I have questions. This attribute is in the regressed code. https://docs.rs/crate/indented-blocks/latest/source/src/lib.rs#3)

[theemathas]

Bisection results:

searched toolchains 5ac8ecea36e7548534e0bc3d4aa1c12bd4908566 through 7148b31956911d5d5496900bf564ca5212bf199b


********************************************************************************
Regression in 8c75e93c5c7671c29f3e8c096b7acf56822ed23a
********************************************************************************

Attempting to search unrolled perf builds
Found commits ["279b5483", "94ec7489", "32f10316"]
installing 279b54833e22d63eb3e4aa3e6b230e267e64844d
uninstalling 279b54833e22d63eb3e4aa3e6b230e267e64844d
installing 94ec748948f697efeba4587f417fdab06c815841
uninstalling 94ec748948f697efeba4587f417fdab06c815841
installing 32f103161b10f6e919ef9f380d69e9d358b4c2b8
uninstalling 32f103161b10f6e919ef9f380d69e9d358b4c2b8
ERROR: none of the toolchains satisfied the predicate

The only relevant PR from that rollup seems to be #157976. cc @Amanieu @GuillaumeGomez