ICE on Nightly building project with generic_const_exprs and tokio #151012
Description
Using generic_const_exprs on Nightly and got a compiler panic when trying to build.
Code
I've tried to minimise the code as much as I can, the error arises with just these files in src/:
main.rs
#![allow(incomplete_features)]
#![feature(generic_const_exprs)]
use anyhow as ah;
use tokio as tk;
use ascendant::*;
fn main() {
fetch().unwrap();
}
/// THIS LINE GIVES `tk::main: proc-macro not yet built` (DOTTED SUGGESTION)
#[tk::main]
async fn fetch() -> ah::Result<()> {
/// THESE LINES WEREN'T COMPILING PRE-CRASH ///
let url = Fetcher::get_puzzle_url::<5>();
let grids = Fetcher::fetch::<5>(url).await?;
Ok(())
}lib.rs
#![allow(incomplete_features)]
#![feature(generic_const_exprs)]
mod grid; pub use grid::*;
mod fetcher; pub use fetcher::*;
pub mod util;
[rustc-ice-2026-01-12T16_53_14-4848.txt](https://github.com/user-attachments/files/24569822/rustc-ice-2026-01-12T16_53_14-4848.txt)grid.rs
use crate::*;
pub struct Grid<const N: usize> {
pub cells: [[u8; N]; N],
}
impl<const N: usize> Grid<N> {
pub fn construct(data: [[u8; N+2]; N+2]) -> Self {
Self {
cells: util::arr(
data[2..].into_iter().map(|row|
util::arr(row[2..].iter().copied())
)
),
}
}
}fetcher.rs
use std::*;
use anyhow as ah;
use chromiumoxide as cr2o3;
use futures::StreamExt;
use tokio as tk;
use crate::*;
type Url = String;
pub struct Fetcher;
impl Fetcher {
pub fn get_puzzle_url<const N: usize>() -> Url {
format!("https://website/route?size={}", N)
}
pub async fn fetch<const N: usize>(url: Url) -> ah::Result<Grid<N>>
where [(); N+2]:
{
// IRRELEVANT
let (mut browser, mut handler) = cr2o3::Browser::launch(
cr2o3::BrowserConfig::builder().with_head().build().map_err(|e| ah::anyhow!(e))?
).await?;
let handle = tk::spawn(async move {
while let Some(_) = handler.next().await {}
});
let page = browser.new_page(url.clone()).await?;
let grid = page.find_element("table").await?;
let rows = grid.find_elements("tr").await?;
/// THIS LINE COULD BE RELEVANT?
let mut digits = [[0; N+2]; N+2];
// IRRELEVANT
for (y, row) in rows.into_iter().enumerate() {
let cells = row.find_elements("td").await?;
for (x, cell) in cells.into_iter().enumerate() {
digits[y][x] = 0;
}
}
/// THIS LINE COULD BE RELEVANT?
let out = Grid::<N>::construct(digits);
// IRRELEVANT
browser.close().await?;
handle.await?;
Ok(out)
}
}util.rs
use std::*;
use arrayvec::ArrayVec;
pub fn arr<I, T, const N: usize>(iter: I) -> [T; N]
where
I: IntoIterator<Item = T>,
T: fmt::Debug
{
iter.into_iter()
.collect::<ArrayVec<T, N>>()
.into_inner()
.unwrap()
}Meta
rustc --version --verbose:
rustc 1.94.0-nightly (0aced202c 2026-01-06)
binary: rustc
commit-hash: 0aced202c24f9356c1640fc0a7f07433b3a7124f
commit-date: 2026-01-06
host: x86_64-pc-windows-msvc
release: 1.94.0-nightly
LLVM version: 21.1.8
Error output
thread 'rustc' (24332) panicked at /rustc-dev/0aced202c24f9356c1640fc0a7f07433b3a7124f/compiler\rustc_type_ir\src\binder.rs:784:9:
type parameter `<coroutine_kind>/#1` (<coroutine_kind>/#1/1) out of range when instantiating, args=[5_usize]
Backtrace
stack backtrace:
0: 0x7fffca03cca2 - std::backtrace_rs::backtrace::win64::trace
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\..\..\backtrace\src\backtrace\win64.rs:85
1: 0x7fffca03cca2 - std::backtrace_rs::backtrace::trace_unsynchronized
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\..\..\backtrace\src\backtrace\mod.rs:66
2: 0x7fffca03cca2 - std::sys::backtrace::_print_fmt
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\sys\backtrace.rs:74
3: 0x7fffca03cca2 - std::sys::backtrace::impl$0::print::impl$0::fmt
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\sys\backtrace.rs:44
4: 0x7fffca064a31 - core::fmt::write
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\core\src\fmt\mod.rs:0
5: 0x7fffca04cd94 - std::io::default_write_fmt
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\io\mod.rs:639
6: 0x7fffca04cd94 - std::io::Write::write_fmt<std::sys::stdio::windows::Stderr>
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\io\mod.rs:1994
7: 0x7fffca015e9e - std::sys::backtrace::BacktraceLock::print
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\sys\backtrace.rs:47
8: 0x7fffca015e9e - std::panicking::default_hook::closure$0
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\panicking.rs:292
9: 0x7fffca02fd57 - std::panicking::default_hook
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\panicking.rs:319
10: 0x7fffcb80fec5 - core[5e013a057ce18257]::slice::sort::unstable::heapsort::heapsort::<((rustc_lint_defs[39449417448a1bdf]::Level, &str), usize), <((rustc_lint_defs[39449417448a1bdf]::Level, &str), usize) as core[5e013a057ce18257]::cmp::PartialOrd>::lt>
11: 0x7fffca030061 - std::panicking::panic_with_hook
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\panicking.rs:833
12: 0x7fffca015f74 - std::panicking::panic_handler::closure$0
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\panicking.rs:698
13: 0x7fffca0132af - std::sys::backtrace::__rust_end_short_backtrace<std::panicking::panic_handler::closure_env$0,never$>
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\sys\backtrace.rs:182
14: 0x7fffca016b2e - std::panicking::panic_handler
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\panicking.rs:689
15: 0x7fffce25c15d - core::panicking::panic_fmt
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\core\src\panicking.rs:80
16: 0x7fffcde2f4b6 - <rustc_type_ir[8b262486762e15e9]::binder::ArgFolder<rustc_middle[cb27752ae5ccc138]::ty::context::TyCtxt>>::type_param_out_of_range
17: 0x7fffcb1b72be - <rustc_trait_selection[74cacac6da2f3563]::traits::query::normalize::QueryNormalizer as rustc_type_ir[8b262486762e15e9]::fold::FallibleTypeFolder<rustc_middle[cb27752ae5ccc138]::ty::context::TyCtxt>>::try_fold_ty
18: 0x7fffcb049744 - RINvNvXsF_Csl1jdowgMAIf_8thin_vecINtB8_8IntoIterpENtNtNtCs84nT5JdeLJP_4core3ops4drop4Drop4drop18drop_non_singletonTINtNtCskZok15lamz7_11rustc_infer6traits10ObligationNtNtNtCshrnQGVbjEl8_12rustc_middle2ty9predicate9PredicateEINtNtBS_6option6OptionINtNtCslcm
19: 0x7fffcb1b29f8 - <rustc_trait_selection[74cacac6da2f3563]::traits::query::normalize::QueryNormalizer as rustc_type_ir[8b262486762e15e9]::fold::FallibleTypeFolder<rustc_middle[cb27752ae5ccc138]::ty::context::TyCtxt>>::try_fold_ty
20: 0x7fffcb1b5d5a - <rustc_trait_selection[74cacac6da2f3563]::traits::query::normalize::QueryNormalizer as rustc_type_ir[8b262486762e15e9]::fold::FallibleTypeFolder<rustc_middle[cb27752ae5ccc138]::ty::context::TyCtxt>>::try_fold_ty
21: 0x7fffcb1b5d4c - <rustc_trait_selection[74cacac6da2f3563]::traits::query::normalize::QueryNormalizer as rustc_type_ir[8b262486762e15e9]::fold::FallibleTypeFolder<rustc_middle[cb27752ae5ccc138]::ty::context::TyCtxt>>::try_fold_ty
22: 0x7fffcb04ef7f - RINvNvXsF_Csl1jdowgMAIf_8thin_vecINtB8_8IntoIterpENtNtNtCs84nT5JdeLJP_4core3ops4drop4Drop4drop18drop_non_singletonTINtNtCskZok15lamz7_11rustc_infer6traits10ObligationNtNtNtCshrnQGVbjEl8_12rustc_middle2ty9predicate9PredicateEINtNtBS_6option6OptionINtNtCslcm
23: 0x7fffcd92e28d - <hashbrown[69948f7661cbf9d7]::raw::RawTable<usize>>::reserve_rehash::<indexmap[2bf7bdb009c8e3c7]::map::core::get_hash<rustc_middle[cb27752ae5ccc138]::ty::predicate::Predicate, ()>::{closure#0}>
24: 0x7fffcb06f2af - RINvNvXsF_Csl1jdowgMAIf_8thin_vecINtB8_8IntoIterpENtNtNtCs84nT5JdeLJP_4core3ops4drop4Drop4drop18drop_non_singletonTINtNtCskZok15lamz7_11rustc_infer6traits10ObligationNtNtNtCshrnQGVbjEl8_12rustc_middle2ty9predicate9PredicateEINtNtBS_6option6OptionINtNtCslcm
25: 0x7fffcb0af5fe - <rustc_trait_selection[74cacac6da2f3563]::traits::engine::ObligationCtxt<rustc_trait_selection[74cacac6da2f3563]::traits::FulfillmentError>>::new_with_diagnostics
26: 0x7fffcb1171bf - <rustc_trait_selection[74cacac6da2f3563]::traits::select::SelectionContext>::evaluate_root_obligation
27: 0x7fffcb114073 - <rustc_trait_selection[74cacac6da2f3563]::traits::select::SelectionContext>::evaluate_root_obligation
28: 0x7fffcb11731f - <rustc_trait_selection[74cacac6da2f3563]::traits::select::SelectionContext>::evaluate_root_obligation
29: 0x7fffcb114073 - <rustc_trait_selection[74cacac6da2f3563]::traits::select::SelectionContext>::evaluate_root_obligation
30: 0x7fffcb11731f - <rustc_trait_selection[74cacac6da2f3563]::traits::select::SelectionContext>::evaluate_root_obligation
31: 0x7fffcb114073 - <rustc_trait_selection[74cacac6da2f3563]::traits::select::SelectionContext>::evaluate_root_obligation
32: 0x7fffcb11731f - <rustc_trait_selection[74cacac6da2f3563]::traits::select::SelectionContext>::evaluate_root_obligation
33: 0x7fffcb10fc66 - <rustc_trait_selection[74cacac6da2f3563]::traits::select::SelectionContext>::evaluate_root_obligation
34: 0x7fffca921289 - rustc_traits[b43bf5d7583cce82]::evaluate_obligation::evaluate_obligation
35: 0x7fffcae641fe - RINvMs6_NtCslB1gnSBQ12S_9hashbrown3rawINtB6_8RawTableTTNtNtNtCshrnQGVbjEl8_12rustc_middle2ty8instance8InstanceNtNtNtBX_3mir4mono14CollectionModeETINtNtNtBX_5query5erase6ErasedAhj20_ENtNtNtCshC3eCxGtqWt_18rustc_query_system9dep_graph5graph12DepNodeIndexEEE1
36: 0x7fffcaea4add - RINvNtNtCshC3eCxGtqWt_18rustc_query_system5query8plumbing17try_execute_queryINtCschuC2KaU4rv_16rustc_query_impl13DynamicConfigINtNtB4_6caches12DefaultCacheINtNtCsbWGAbRaT4nZ_13rustc_type_ir9canonical19CanonicalQueryInputNtNtNtCshrnQGVbjEl8_12rustc_middle2t
37: 0x7fffcaf39113 - rustc_query_impl[8f0ed196aa76c55b]::plumbing::query_key_hash_verify_all
38: 0x7fffcb126166 - rustc_trait_selection[74cacac6da2f3563]::traits::type_known_to_meet_bound_modulo_regions
39: 0x7fffcad890a5 - rustc_ty_utils[b61d602a58bf9221]::common_traits::is_copy_raw
40: 0x7fffcae63205 - RINvMs6_NtCslB1gnSBQ12S_9hashbrown3rawINtB6_8RawTableTTNtNtNtCshrnQGVbjEl8_12rustc_middle2ty8instance8InstanceNtNtNtBX_3mir4mono14CollectionModeETINtNtNtBX_5query5erase6ErasedAhj20_ENtNtNtCshC3eCxGtqWt_18rustc_query_system9dep_graph5graph12DepNodeIndexEEE1
41: 0x7fffcafbcad3 - rustc_query_impl[8f0ed196aa76c55b]::plumbing::query_key_hash_verify_all
42: 0x7fffcaebb1a2 - RINvNtNtCshC3eCxGtqWt_18rustc_query_system5query8plumbing17try_execute_queryINtCschuC2KaU4rv_16rustc_query_impl13DynamicConfigINtNtB4_6caches12DefaultCacheINtNtCshrnQGVbjEl8_12rustc_middle2ty20PseudoCanonicalInputNtB2w_2TyEINtNtNtB2y_5query5erase6ErasedAhj
43: 0x7fffc9b64129 - rustc_query_impl[8f0ed196aa76c55b]::profiling_support::alloc_self_profile_query_strings
44: 0x7fffcb658de7 - <rustc_middle[cb27752ae5ccc138]::ty::Ty>::is_freeze
45: 0x7fffca54e0dc - rustc_mir_transform[c72163235734cd0d]::mir_built
46: 0x7fffca6459e7 - <rustc_mir_transform[c72163235734cd0d]::copy_prop::CopyProp as rustc_mir_transform[c72163235734cd0d]::pass_manager::MirPass>::run_pass
47: 0x7fffca542856 - rustc_mir_transform[c72163235734cd0d]::mir_const_qualif
48: 0x7fffca54077f - rustc_mir_transform[c72163235734cd0d]::optimized_mir
49: 0x7fffcae63240 - RINvMs6_NtCslB1gnSBQ12S_9hashbrown3rawINtB6_8RawTableTTNtNtNtCshrnQGVbjEl8_12rustc_middle2ty8instance8InstanceNtNtNtBX_3mir4mono14CollectionModeETINtNtNtBX_5query5erase6ErasedAhj20_ENtNtNtCshC3eCxGtqWt_18rustc_query_system9dep_graph5graph12DepNodeIndexEEE1
50: 0x7fffcae91d28 - RINvNtNtCshC3eCxGtqWt_18rustc_query_system5query8plumbing17try_execute_queryINtCschuC2KaU4rv_16rustc_query_impl13DynamicConfigINtNtB4_6caches10DefIdCacheINtNtNtCshrnQGVbjEl8_12rustc_middle5query5erase6ErasedAhj8_EEKb0_KB3r_KB3r_ENtNtB1f_8plumbing9QueryCtxt
51: 0x7fffc9a8dc96 - <rustc_lint[7c966b0028cd9004]::builtin::SpecialModuleName as rustc_lint[7c966b0028cd9004]::passes::EarlyLintPass>::check_crate
52: 0x7fffc9bc5eb6 - rustc_query_impl[8f0ed196aa76c55b]::profiling_support::alloc_self_profile_query_strings
53: 0x7fffcae4b838 - RINvCsk9yyefPuayT_21rustc_data_structures7outlineNCINvMs3_NtNtCshC3eCxGtqWt_18rustc_query_system9dep_graph5graphINtBU_12DepGraphDataNtNtCshrnQGVbjEl8_12rustc_middle9dep_graph8DepsTypeE52assert_dep_node_not_yet_allocated_in_current_sessionNtNtCs44W5hUKnZEI_
54: 0x7fffcaef3a82 - RINvNtNtCshC3eCxGtqWt_18rustc_query_system5query8plumbing17try_execute_queryINtCschuC2KaU4rv_16rustc_query_impl13DynamicConfigINtNtB4_6caches12DefaultCacheTNtNtNtCshrnQGVbjEl8_12rustc_middle2ty8instance8InstanceNtNtNtB2A_3mir4mono14CollectionModeEINtNtNtB2
55: 0x7fffcaf37b85 - rustc_query_impl[8f0ed196aa76c55b]::plumbing::query_key_hash_verify_all
56: 0x7fffca496db0 - RINvNtNtNtNtCs84nT5JdeLJP_4core5slice4sort6stable9quicksort9quicksortTRNtNtNtCshrnQGVbjEl8_12rustc_middle3mir4mono8MonoItemNtNtB1d_2ty10SymbolNameENCINvMNtCs44W5hUKnZEI_5alloc5sliceSB15_11sort_by_keyB1X_NCINvNtCsjaIpKvNxlKi_18rustc_monomorphize12partitioni
57: 0x7fffca4ab431 - rustc_monomorphize[df51673f03bedeb4]::partitioning::collect_and_partition_mono_items
58: 0x7fffca4af5e4 - rustc_monomorphize[df51673f03bedeb4]::partitioning::collect_and_partition_mono_items
59: 0x7fffc983b18f - RINvNtNtNtNtCs84nT5JdeLJP_4core5slice4sort6stable9quicksort9quicksortNtNtNtCshrnQGVbjEl8_12rustc_middle3mir4mono11CodegenUnitNCINvMNtCs44W5hUKnZEI_5alloc5sliceSB15_7sort_byNCNvNtCsjaIpKvNxlKi_18rustc_monomorphize12partitioning19merge_codegen_unitss4_0E0EB2
60: 0x7fffca49e418 - rustc_monomorphize[df51673f03bedeb4]::partitioning::collect_and_partition_mono_items
61: 0x7fffc9a95b77 - <rustc_lint[7c966b0028cd9004]::builtin::SpecialModuleName as rustc_lint[7c966b0028cd9004]::passes::EarlyLintPass>::check_crate
62: 0x7fffc9be3a0d - rustc_query_impl[8f0ed196aa76c55b]::profiling_support::alloc_self_profile_query_strings
63: 0x7fffc9aa562a - RINvNtNtCshC3eCxGtqWt_18rustc_query_system5query8plumbing17try_execute_queryINtCschuC2KaU4rv_16rustc_query_impl13DynamicConfigINtNtB4_6caches11SingleCacheINtNtNtCshrnQGVbjEl8_12rustc_middle5query5erase6ErasedAhj18_EEKb0_KB3t_KB3t_ENtNtB1f_8plumbing9QueryCt
64: 0x7fffcd732c93 - <alloc[2f849778b80e71ba]::sync::Arc<rustc_session[4405c24221e6aae4]::cstore::CrateSource>>::drop_slow
65: 0x7fffc76488b6 - rustc_interface[ce5880c7cbcb52b4]::interface::parse_cfg
66: 0x7fffc76af2ae - <rustc_codegen_llvm[b524f2baa8dfe82b]::LlvmCodegenBackend as rustc_codegen_ssa[36e97328def15aeb]::traits::backend::CodegenBackend>::codegen_crate
67: 0x7fffc761140c - <rustc_interface[ce5880c7cbcb52b4]::queries::Linker>::codegen_and_build_linker
68: 0x7fffc75bbfce - std[b7a92b440a448066]::sys::backtrace::__rust_begin_short_backtrace::<std[b7a92b440a448066]::thread::lifecycle::spawn_unchecked<ctrlc[c739cdff6a06eb90]::set_handler_inner<rustc_driver_impl[24aae8d30d4db449]::install_ctrlc_handler::{closure#0}>::{closure#0}, ()>::{closure#1}::{closure#0}::{closure#0}, ()>
69: 0x7fffc75b45cf - RINvNtNtCsfLCzNyI7woc_3std3sys9backtrace28___rust_begin_short_backtraceNCNCINvNtCshIn9lulT20i_15rustc_interface4util26run_in_thread_with_globalsNCINvB1e_31run_in_thread_pool_with_globalsNCINvNtB1g_9interface12run_compileruNCNvCs39bdcMlkK5F_17rustc_driver_i
70: 0x7fffc75c2879 - std[b7a92b440a448066]::sys::backtrace::__rust_begin_short_backtrace::<std[b7a92b440a448066]::thread::lifecycle::spawn_unchecked<ctrlc[c739cdff6a06eb90]::set_handler_inner<rustc_driver_impl[24aae8d30d4db449]::install_ctrlc_handler::{closure#0}>::{closure#0}, ()>::{closure#1}::{closure#0}::{closure#0}, ()>
71: 0x7fffca03a1b8 - std::sys::thread::windows::impl$0::new::thread_start
at /rustc/0aced202c24f9356c1640fc0a7f07433b3a7124f/library\std\src\sys\thread\windows.rs:58
72: 0x7ff8bdfce8d7 - BaseThreadInitThunk
73: 0x7ff8beccc53c - RtlUserThreadStart
error: the compiler unexpectedly panicked. this is a bug.
note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
note: please make sure that you have updated to the latest nightly
note: please attach the file at `C:\~
[rustc-ice-2026-01-12T16_53_14-4848.txt](https://github.com/user-attachments/files/24569762/rustc-ice-2026-01-12T16_53_14-4848.txt)
\ascendant\rustc-ice-2026-01-12T16_53_14-4848.txt` to your bug report
note: rustc 1.94.0-nightly (0aced202c 2026-01-06) running on x86_64-pc-windows-msvc
note: compiler flags: --crate-type bin -C embed-bitcode=no -C debuginfo=2 -C incremental=[REDACTED]
note: some of the compiler flags provided by cargo are hidden
query stack during panic:
#0 [evaluate_obligation] evaluating trait selection obligation `{async block@src\main.rs:45:1: 45:12}: core::marker::Freeze`
#1 [is_freeze_raw] computing whether `{async block@src\main.rs:45:1: 45:12}` is freeze
... and 3 other queries... use `env RUST_BACKTRACE=1` to see the full query stack
there was a panic while trying to force a dep node
try_mark_green dep node stack:
#0 items_of_instance(976ab02d453d2a3-75da5ee6bf3b313e)
end of try_mark_green dep node stack
warning: `ascendant` (bin "ascendant") generated 1 warning (run `cargo fix --bin "ascendant" -p ascendant` to apply 1 suggestion)
error: could not compile `ascendant` (bin "ascendant"); 1 warning emitted
Caused by:
process didn't exit successfully: `C:\Users\sup\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\bin\rustc.exe --crate-name ascendant --edition=2024 src\main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --diagnostic-width=147 --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --check-cfg cfg(docsrs,test) --check-cfg "cfg(feature, values())" -C metadata=23426289d0239fa1 --out-dir C:\~\ascendant\target\debug\deps -C incremental=C:\~\ascendant\target\debug\incremental -L dependency=C:\~\ascendant\target\debug\deps --extern anyhow=C:\~\ascendant\target\debug\deps\libanyhow-203daeac6375a518.rlib --extern arrayvec=C:\~\ascendant\target\debug\deps\libarrayvec-57fa88b3ca821eba.rlib --extern ascendant=C:\~\ascendant\target\debug\deps\libascendant-f91a2b953bb8a3e0.rlib --extern chromiumoxide=C:\~\ascendant\target\debug\deps\libchromiumoxide-db1ea85f799d9c95.rlib --extern futures=C:\~\ascendant\target\debug\deps\libfutures-fade23ebb5ef787d.rlib --extern itertools=C:\~\ascendant\target\debug\deps\libitertools-49f8ea6c1467d966.rlib --extern tokio=C:\~\ascendant\target\debug\deps\libtokio-69f6c6cb402c8b5b.rlib -L native=C:\Users\sup\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\windows_x86_64_msvc-0.53.1\lib` (exit code: 101)
(C:\~\ascendant\ is my project directory)
Other Notes
- Before this crash I was receiving some errors around
overflow evaluating the requirement [(); ascendant::::puzzle::Grid::{constant#0}] well-formed, presumably due to theN+2constraints, wonder if that's related? - At the start of this project when I enabled Nightly for
const_generic_exprs, I could no longercargo run(I couldcargo build, then eventually I couldn't that either) due to issues with the MSVC linker. I installed both C++ and Windows 11 SDK from Visual Studio Installer, which didn't fix the issue, but in the a Windows Powershell launched by pressing "Launch" on Visual Studio Build Tools 2019, everything worked as expected. Don't know if this strange terminal environment might have an impact on anything.