pyrefly suddenly crashes typeshed CI because of missing EllipsisType #5308

Checking 5135 stubs with pyrefly (3.13, win32)...
ERROR Thread panicked, shutting down: panicked at crates/pyrefly_types/src/stdlib.rs:318:17:
internal error: entered unreachable code: Stdlib missing class `EllipsisType` (while bootstrapping)
Backtrace:
   0:     0x55a6de88b679 - <std[6c98fd8553dbae28]::backtrace::Backtrace>::create
   1:     0x55a6de88b5c5 - <std[6c98fd8553dbae28]::backtrace::Backtrace>::force_capture
   2:     0x55a6de6bb041 - <std[6c98fd8553dbae28]::sync::once::Once>::call_once::<pyrefly_util[6e1aad25c532c47d]::panic::print_panic::{closure#0}>::{closure#0}
   3:     0x55a6de88a4e9 - <std[6c98fd8553dbae28]::sys::sync::once::futex::Once>::call
   4:     0x55a6de6baf51 - pyrefly_util[6e1aad25c532c47d]::panic::print_panic
   5:     0x55a6de6bc8f9 - pyrefly_util[6e1aad25c532c47d]::panic::exit_on_panic::{closure#0}
   6:     0x55a6de85d09f - std[6c98fd8553dbae28]::panicking::panic_with_hook
   7:     0x55a6de885c31 - std[6c98fd8553dbae28]::panicking::panic_handler::{closure#0}
   8:     0x55a6de885be9 - std[6c98fd8553dbae28]::sys::backtrace::__rust_end_short_backtrace::<std[6c98fd8553dbae28]::panicking::panic_handler::{closure#0}, !>
   9:     0x55a6de88611c - __rustc[100742bb89c490cb]::rust_begin_unwind
  10:     0x55a6dd844f7b - core[c0acaeba6ab4c2e0]::panicking::panic_fmt
  11:     0x55a6ddc80284 - <pyrefly[7952a5bf9a379201]::alt::answers_solver::AnswersSolver<pyrefly[7952a5bf9a379201]::state::state::TransactionHandle>>::expr_infer_impl_helper
  12:     0x55a6ddc74162 - <pyrefly[7952a5bf9a379201]::alt::answers_solver::AnswersSolver<pyrefly[7952a5bf9a379201]::state::state::TransactionHandle>>::expr_infer_impl
  13:     0x55a6ddc93bc9 - <pyrefly[7952a5bf9a379201]::alt::answers_solver::AnswersSolver<pyrefly[7952a5bf9a379201]::state::state::TransactionHandle>>::expr_untype
  14:     0x55a6dddd6173 - <pyrefly[7952a5bf9a379201]::alt::answers_solver::AnswersSolver<pyrefly[7952a5bf9a379201]::state::state::TransactionHandle>>::paramspec_from_call
  15:     0x55a6dddb2962 - <pyrefly[7952a5bf9a379201]::alt::answers_solver::AnswersSolver<pyrefly[7952a5bf9a379201]::state::state::TransactionHandle>>::binding_to_type
  16:     0x55a6dddb138c - <pyrefly[7952a5bf9a379201]::alt::answers_solver::AnswersSolver<pyrefly[7952a5bf9a379201]::state::state::TransactionHandle>>::binding_to_type_info
  17:     0x55a6dddb0f31 - <pyrefly[7952a5bf9a379201]::alt::answers_solver::AnswersSolver<pyrefly[7952a5bf9a379201]::state::state::TransactionHandle>>::solve_binding_result
  18:     0x55a6ddaff1c1 - <pyrefly[7952a5bf9a379201]::alt::answers_solver::AnswersSolver<pyrefly[7952a5bf9a379201]::state::state::TransactionHandle>>::force_idx::<pyrefly[7952a5bf9a379201]::binding::binding::Key>
  19:     0x55a6ddd3fd3c - <pyrefly[7952a5bf9a379201]::alt::answers_solver::AnswersSolver<pyrefly[7952a5bf9a379201]::state::state::TransactionHandle>>::solve_legacy_tparam
  20:     0x55a6ddb1c96a - <pyrefly[7952a5bf9a379201]::alt::answers_solver::AnswersSolver<pyrefly[7952a5bf9a379201]::state::state::TransactionHandle>>::force_idx::<pyrefly[7952a5bf9a379201]::binding::binding::KeyLegacyTypeParam>
  21:     0x55a6dde61148 - <pyrefly[7952a5bf9a379201]::alt::answers_solver::AnswersSolver<pyrefly[7952a5bf9a379201]::state::state::TransactionHandle>>::calculate_class_tparams
  22:     0x55a6ddb044b6 - <pyrefly[7952a5bf9a379201]::alt::answers_solver::AnswersSolver<pyrefly[7952a5bf9a379201]::state::state::TransactionHandle>>::force_idx::<pyrefly[7952a5bf9a379201]::binding::binding::KeyTParams>
  23:     0x55a6ddb6dbbb - <pyrefly[7952a5bf9a379201]::state::state::Transaction>::lookup_answer::<pyrefly[7952a5bf9a379201]::binding::binding::KeyTParams>
  24:     0x55a6ddfc1216 - <pyrefly[7952a5bf9a379201]::state::state::Transaction>::compute_stdlib::{closure#5}
  25:     0x55a6de59aac5 - <pyrefly_types[a3274afa634ec408]::stdlib::Stdlib>::new_with_bootstrapping::{closure#1}
  26:     0x55a6de59995c - <pyrefly_types[a3274afa634ec408]::stdlib::Stdlib>::new_with_bootstrapping
  27:     0x55a6ddfb5be0 - <pyrefly[7952a5bf9a379201]::state::state::Transaction>::run_internal
  28:     0x55a6de243892 - <pyrefly[7952a5bf9a379201]::commands::check::CheckArgs>::run_inner
  29:     0x55a6de2214f2 - <pyrefly[7952a5bf9a379201]::commands::check::CheckArgs>::run_once
  30:     0x55a6dd771a67 - pyrefly[5bcb00d63e3896b1]::run::{closure#0}
  31:     0x55a6dd77ae43 - pyrefly[5bcb00d63e3896b1]::main::{closure#0}
  32:     0x55a6dd782db2 - pyrefly[5bcb00d63e3896b1]::main
  33:     0x55a6dd74b473 - std[6c98fd8553dbae28]::sys::backtrace::__rust_begin_short_backtrace::<fn() -> std[6c98fd8553dbae28]::process::ExitCode, std[6c98fd8553dbae28]::process::ExitCode>
  34:     0x55a6dd79a976 - main
  35:     0x7fc90d82a1ca - <unknown>
  36:     0x7fc90d82a28b - __libc_start_main
  37:     0x55a6dd72d1a9 - <unknown>
  38:                0x0 - <unknown>

PANIC Sorry, Pyrefly crashed, this is always a bug in Pyrefly itself.
PANIC Please report the bug at https://github.com/facebook/pyrefly/issues/new