Possible incremental compilation bug

[sofia-m-a]

I have no idea where to start with minimizing this, it's a fairly tightly-coupled Bevy game codebase.

I can provide other code as needed. The bug was reproducible for a while, but after removing some dead code, it builds just fine, even if I go back to the code as it was when the error happened.

Here is the function that it panics on:

Code

fn main() {
    App::new()
        .insert_resource(WgpuOptions {
            limits: WgpuLimits {
                max_texture_array_layers: 2048,
                ..Default::default()
            },
            ..Default::default()
        })
        .add_state(GameState::Splash)
        .add_plugins(DefaultPlugins)
        //.add_plugin(AnimationPlugin)
        //.add_plugin(RapierPhysicsPlugin::<NoUserData>::default())
        .add_plugin(LetterboxCameraPlugin)
        .add_system_set(SystemSet::on_enter(GameState::Splash).with_system(setup_sprites))
        .add_system_set(SystemSet::on_update(GameState::Splash).with_system(update_clear_colour))
        .add_system_set(
            SystemSet::on_enter(GameState::Level)
                .with_system(setup)
                .with_system(setup_player),
        )
        .add_system_set(
            SystemSet::on_update(GameState::Level)
                .with_system(keyboard_input_system)
                .with_system(chunk_load_unload),
        )
        .add_system(set_texture_filters_to_nearest)
        .run();
}

Meta

rustc --version --verbose:

rustc 1.59.0-nightly (c09a9529c 2021-12-23)
binary: rustc
commit-hash: c09a9529c51cde41c1101e56049d418edb07bf71
commit-date: 2021-12-23
host: x86_64-unknown-linux-gnu
release: 1.59.0-nightly
LLVM version: 13.0.0

Error output

warning: unused import: `SHEET_H`
 --> src/map/brushes.rs:1:21
  |
1 | use crate::assets::{SHEET_H, SHEET_W};
  |                     ^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default

warning: unused import: `Vec2`
 --> src/map/map.rs:8:25
  |
8 |     math::{IVec2, Rect, Vec2, Vec3},
  |                         ^^^^

warning: unused imports: `SHEET_H`, `SHEET_W`, `TILE_SIZE`
  --> src/main.rs:12:66
   |
12 |     set_texture_filters_to_nearest, setup_sprites, SpriteAssets, SHEET_H, SHEET_W, TILE_SIZE,
   |                                                                  ^^^^^^^  ^^^^^^^  ^^^^^^^^^

warning: unused variable: `commands`
  --> src/main.rs:63:9
   |
63 |     mut commands: Commands,
   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_commands`
   |
   = note: `#[warn(unused_variables)]` on by default

warning: unused variable: `graphics`
   --> src/main.rs:104:5
    |
104 |     graphics: Res<SpriteAssets>,
    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_graphics`

warning: unused variable: `graphics`
   --> src/main.rs:129:41
    |
129 | fn setup_player(mut commands: Commands, graphics: Res<SpriteAssets>) {
    |                                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_graphics`

warning: variable does not need to be mutable
  --> src/main.rs:63:5
   |
63 |     mut commands: Commands,
   |     ----^^^^^^^^
   |     |
   |     help: remove this `mut`
   |
   = note: `#[warn(unused_mut)]` on by default

warning: path statement with no effect
  --> src/camera.rs:35:5
   |
35 |     center_mean;
   |     ^^^^^^^^^^^^
   |
   = note: `#[warn(path_statements)]` on by default

Backtrace

thread 'rustc' panicked at 'index out of bounds: the len is 141 but the index is 145', compiler/rustc_query_impl/src/on_disk_cache.rs:712:18
stack backtrace:
   0: rust_begin_unwind
             at /rustc/c09a9529c51cde41c1101e56049d418edb07bf71/library/std/src/panicking.rs:498:5
   1: core::panicking::panic_fmt
             at /rustc/c09a9529c51cde41c1101e56049d418edb07bf71/library/core/src/panicking.rs:107:14
   2: core::panicking::panic_bounds_check
             at /rustc/c09a9529c51cde41c1101e56049d418edb07bf71/library/core/src/panicking.rs:75:5
   3: <rustc_span::span_encoding::Span as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   4: <rustc_middle::ty::VariantDef as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   5: <rustc_query_impl::on_disk_cache::CacheDecoder as rustc_serialize::serialize::Decoder>::read_seq::<alloc::vec::Vec<rustc_middle::ty::VariantDef>, <alloc::vec::Vec<rustc_middle::ty::VariantDef> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>
   6: <rustc_middle::ty::adt::AdtDef as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   7: <rustc_middle::ty::sty::TyKind as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   8: <&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   9: <&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  10: <rustc_query_impl::on_disk_cache::CacheDecoder as rustc_serialize::serialize::Decoder>::read_map::<std::collections::hash::map::HashMap<rustc_hir::hir_id::ItemLocalId, &rustc_middle::ty::TyS, core::hash::BuildHasherDefault<rustc_hash::FxHasher>>, <std::collections::hash::map::HashMap<rustc_hir::hir_id::ItemLocalId, &rustc_middle::ty::TyS, core::hash::BuildHasherDefault<rustc_hash::FxHasher>> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>
  11: <rustc_middle::ty::context::TypeckResults as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}
  12: <rustc_query_impl::on_disk_cache::OnDiskCache>::try_load_query_result::<&rustc_middle::ty::context::TypeckResults>
  13: rustc_query_system::query::plumbing::try_load_from_disk_and_cache_in_memory::<rustc_query_impl::plumbing::QueryCtxt, rustc_span::def_id::LocalDefId, &rustc_middle::ty::context::TypeckResults>
  14: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::LocalDefId, &rustc_middle::ty::context::TypeckResults>>
  15: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck
  16: <rustc_passes::liveness::IrMaps as rustc_hir::intravisit::Visitor>::visit_body
  17: rustc_hir::intravisit::walk_item::<rustc_passes::liveness::IrMaps>
  18: <rustc_middle::hir::map::Map>::visit_item_likes_in_module::<rustc_hir::intravisit::DeepVisitor<rustc_passes::liveness::IrMaps>>
  19: rustc_passes::liveness::check_mod_liveness
  20: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle::ty::context::TyCtxt, rustc_span::def_id::LocalDefId, ()>
  21: rustc_data_structures::stack::ensure_sufficient_stack::<((), rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job<rustc_query_impl::plumbing::QueryCtxt, rustc_span::def_id::LocalDefId, ()>::{closure#3}>
  22: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::LocalDefId, ()>>
  23: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::check_mod_liveness, rustc_query_impl::plumbing::QueryCtxt>
  24: <core::panic::unwind_safe::AssertUnwindSafe<rustc_interface::passes::analysis::{closure#1}::{closure#1}> as core::ops::function::FnOnce<()>>::call_once
  25: <rustc_session::session::Session>::time::<(), rustc_interface::passes::analysis::{closure#1}>
  26: rustc_interface::passes::analysis
  27: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle::ty::context::TyCtxt, (), core::result::Result<(), rustc_errors::ErrorReported>>
  28: rustc_data_structures::stack::ensure_sufficient_stack::<(core::result::Result<(), rustc_errors::ErrorReported>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job<rustc_query_impl::plumbing::QueryCtxt, (), core::result::Result<(), rustc_errors::ErrorReported>>::{closure#3}>
  29: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<(), core::result::Result<(), rustc_errors::ErrorReported>>>
  30: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::analysis, rustc_query_impl::plumbing::QueryCtxt>
  31: <rustc_interface::passes::QueryContext>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}::{closure#3}, core::result::Result<(), rustc_errors::ErrorReported>>
  32: <rustc_interface::interface::Compiler>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}, core::result::Result<core::option::Option<rustc_interface::queries::Linker>, rustc_errors::ErrorReported>>
  33: rustc_span::with_source_map::<core::result::Result<(), rustc_errors::ErrorReported>, rustc_interface::interface::create_compiler_and_run<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>::{closure#1}>
  34: rustc_interface::interface::create_compiler_and_run::<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>
  35: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::util::setup_callbacks_and_run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorReported>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_errors::ErrorReported>>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: internal compiler error: unexpected panic

note: 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: rustc 1.59.0-nightly (c09a9529c 2021-12-23) running on x86_64-unknown-linux-gnu

note: compiler flags: -Z share-generics=y -C opt-level=1 -C embed-bitcode=no -C debuginfo=2 -C debug-assertions=on -C linker=clang -C incremental -C link-arg=-fuse-ld=lld --crate-type bin

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [typeck] type-checking `main`
#1 [check_mod_liveness] checking liveness of variables in top-level module
#2 [analysis] running analysis passes on this crate
end of query stack

[Kleptine]

This is a duplicate, I think. #92373

[csmoe]

Fixed by #92533