rustc panic: the naive layout isn't refined by the actual layout

[NicoZweifel]

Describe the bug
Compilation fails on nightly rustc 1.73.0-nightly (0308df23e 2023-07-21).

I tried examples/ssr_modes and cargo leptos new --git https://github.com/leptos-rs/start.

It definitely used to work a week or so ago before fetching main and running rustup update.

Not sure if this is the right place to post, please let me know if I should move this to here or somewhere else.

cargo leptos watch fails with:

error: internal compiler error: compiler/rustc_ty_utils/src/layout_sanity_check.rs:25:9: the naive layout isn't refined by the actual layout:
                                NaiveLayout {
                                    abi: Sized,
                                    niches: Maybe,
                                    size: Size(0 bytes),
                                    align: Align(4 bytes),
                                    exact: false,
                                }
                                TyAndLayout {
                                    ty: iter<T>,
                                    layout: Layout {
                                        size: Size(0 bytes),
                                        align: AbiAndPrefAlign {
                                            abi: Align(1 bytes),
                                            pref: Align(8 bytes),
                                        },
                                        abi: Aggregate {
                                            sized: true,
                                        },
                                        fields: Arbitrary {
                                            offsets: [],
                                            memory_index: [],
                                        },
                                        largest_niche: None,
                                        variants: Single {
                                            index: 1,
                                        },
                                        max_repr_align: None,
                                        unadjusted_abi_align: Align(1 bytes),
                                    },
                                }

thread 'rustc' panicked at 'Box<dyn Any>', /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/compiler/rustc_errors/src/lib.rs:1663:9
stack backtrace:
   0:     0x7f9441fbffc1 - std::backtrace_rs::backtrace::libunwind::trace::h8f154b6a796326e2
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7f9441fbffc1 - std::backtrace_rs::backtrace::trace_unsynchronized::hb8abeaf7dfb1c24b
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f9441fbffc1 - std::sys_common::backtrace::_print_fmt::h3f47e60290db41a5
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7f9441fbffc1 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h4552f2dd442a589d
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7f944202649c - core::fmt::rt::Argument::fmt::h78a6be6446bd82bd
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/core/src/fmt/rt.rs:138:9
   5:     0x7f944202649c - core::fmt::write::hd14ae211f7dd66b2
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/core/src/fmt/mod.rs:1094:21
   6:     0x7f9441fb27ae - std::io::Write::write_fmt::hdc8c0b5c45666412
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/std/src/io/mod.rs:1714:15
   7:     0x7f9441fbfdd5 - std::sys_common::backtrace::_print::h381fcf6b91d9d880
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/std/src/sys_common/backtrace.rs:47:5
   8:     0x7f9441fbfdd5 - std::sys_common::backtrace::print::hcfe75c5be0f60777
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/std/src/sys_common/backtrace.rs:34:9
   9:     0x7f9441fc2e2a - std::panicking::panic_hook_with_disk_dump::{{closure}}::hfe5fad22482c9f6d
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/std/src/panicking.rs:278:22
  10:     0x7f9441fc2ac3 - std::panicking::panic_hook_with_disk_dump::hc822f132c197763d
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/std/src/panicking.rs:312:9
  11:     0x7f94451ef8b9 - rustc_driver_impl[fead4037fc65a3e4]::install_ice_hook::{closure#0}
  12:     0x7f9441fc36d0 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h549a9102e6ec42b3
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/alloc/src/boxed.rs:2021:9
  13:     0x7f9441fc36d0 - std::panicking::rust_panic_with_hook::h8adf1e4a5b603f89
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/std/src/panicking.rs:733:13
  14:     0x7f94457ab271 - std[bbbc53192af03470]::panicking::begin_panic::<rustc_errors[5f83c55a23d0ef58]::ExplicitBug>::{closure#0}
  15:     0x7f94457a9266 - std[bbbc53192af03470]::sys_common::backtrace::__rust_end_short_backtrace::<std[bbbc53192af03470]::panicking::begin_panic<rustc_errors[5f83c55a23d0ef58]::ExplicitBug>::{closure#0}, !>
  16:     0x7f94457a17a6 - std[bbbc53192af03470]::panicking::begin_panic::<rustc_errors[5f83c55a23d0ef58]::ExplicitBug>
  17:     0x7f944571ef94 - <rustc_errors[5f83c55a23d0ef58]::HandlerInner>::bug::<alloc[c920ce942076dd6e]::string::String>
  18:     0x7f944571ee26 - <rustc_errors[5f83c55a23d0ef58]::Handler>::bug::<alloc[c920ce942076dd6e]::string::String>
  19:     0x7f94456f929c - rustc_middle[2e38e64f479fe5b8]::util::bug::opt_span_bug_fmt::<rustc_span[a321f1cb1523dd0b]::span_encoding::Span>::{closure#0}
  20:     0x7f94456f90da - rustc_middle[2e38e64f479fe5b8]::ty::context::tls::with_opt::<rustc_middle[2e38e64f479fe5b8]::util::bug::opt_span_bug_fmt<rustc_span[a321f1cb1523dd0b]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  21:     0x7f94456f90a8 - rustc_middle[2e38e64f479fe5b8]::ty::context::tls::with_context_opt::<rustc_middle[2e38e64f479fe5b8]::ty::context::tls::with_opt<rustc_middle[2e38e64f479fe5b8]::util::bug::opt_span_bug_fmt<rustc_span[a321f1cb1523dd0b]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  22:     0x7f9443c05fa0 - rustc_middle[2e38e64f479fe5b8]::util::bug::bug_fmt
  23:     0x7f9443b540ce - rustc_ty_utils[55ee87bc8b98e550]::layout::layout_of
  24:     0x7f94432678ce - rustc_query_impl[89227dfa721c8c03]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[89227dfa721c8c03]::query_impl::layout_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2e38e64f479fe5b8]::query::erase::Erased<[u8; 16usize]>>
  25:     0x7f9443b48ff1 - rustc_query_system[c0a52eceb1a71305]::query::plumbing::try_execute_query::<rustc_query_impl[89227dfa721c8c03]::DynamicConfig<rustc_query_system[c0a52eceb1a71305]::query::caches::DefaultCache<rustc_middle[2e38e64f479fe5b8]::ty::ParamEnvAnd<rustc_middle[2e38e64f479fe5b8]::ty::Ty>, rustc_middle[2e38e64f479fe5b8]::query::erase::Erased<[u8; 16usize]>>, false, true, false>, rustc_query_impl[89227dfa721c8c03]::plumbing::QueryCtxt, false>
  26:     0x7f9443b48bf3 - rustc_query_impl[89227dfa721c8c03]::query_impl::layout_of::get_query_non_incr::__rust_end_short_backtrace
  27:     0x7f94442233e0 - <rustc_mir_transform[bc3e936f99131297]::const_prop::CanConstProp>::check
  28:     0x7f944421edd0 - <rustc_mir_transform[bc3e936f99131297]::const_prop_lint::ConstProp as rustc_mir_transform[bc3e936f99131297]::pass_manager::MirLint>::run_lint
  29:     0x7f94439e3a60 - rustc_mir_transform[bc3e936f99131297]::mir_drops_elaborated_and_const_checked
  30:     0x7f94432d338e - rustc_query_impl[89227dfa721c8c03]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[89227dfa721c8c03]::query_impl::mir_drops_elaborated_and_const_checked::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2e38e64f479fe5b8]::query::erase::Erased<[u8; 8usize]>>
  31:     0x7f94432d335e - <rustc_query_impl[89227dfa721c8c03]::query_impl::mir_drops_elaborated_and_const_checked::dynamic_query::{closure#2} as core[d7f3879bb305828b]::ops::function::FnOnce<(rustc_middle[2e38e64f479fe5b8]::ty::context::TyCtxt, rustc_span[a321f1cb1523dd0b]::def_id::LocalDefId)>>::call_once
  32:     0x7f94433cdc9d - rustc_query_system[c0a52eceb1a71305]::query::plumbing::try_execute_query::<rustc_query_impl[89227dfa721c8c03]::DynamicConfig<rustc_query_system[c0a52eceb1a71305]::query::caches::VecCache<rustc_span[a321f1cb1523dd0b]::def_id::LocalDefId, rustc_middle[2e38e64f479fe5b8]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[89227dfa721c8c03]::plumbing::QueryCtxt, false>
  33:     0x7f9444b5060f - rustc_query_impl[89227dfa721c8c03]::query_impl::mir_drops_elaborated_and_const_checked::get_query_non_incr::__rust_end_short_backtrace
  34:     0x7f9444689ed3 - <rustc_session[15d76b916424491d]::session::Session>::time::<(), rustc_interface[c9554cd0b74ea93d]::passes::analysis::{closure#2}>
  35:     0x7f94446884f5 - rustc_interface[c9554cd0b74ea93d]::passes::analysis
  36:     0x7f94446d982a - rustc_query_impl[89227dfa721c8c03]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[89227dfa721c8c03]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[2e38e64f479fe5b8]::query::erase::Erased<[u8; 1usize]>>
  37:     0x7f94446d9819 - <rustc_query_impl[89227dfa721c8c03]::query_impl::analysis::dynamic_query::{closure#2} as core[d7f3879bb305828b]::ops::function::FnOnce<(rustc_middle[2e38e64f479fe5b8]::ty::context::TyCtxt, ())>>::call_once
  38:     0x7f944488f088 - rustc_query_system[c0a52eceb1a71305]::query::plumbing::try_execute_query::<rustc_query_impl[89227dfa721c8c03]::DynamicConfig<rustc_query_system[c0a52eceb1a71305]::query::caches::SingleCache<rustc_middle[2e38e64f479fe5b8]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[89227dfa721c8c03]::plumbing::QueryCtxt, false>
  39:     0x7f944488ee17 - rustc_query_impl[89227dfa721c8c03]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
  40:     0x7f9444430745 - <rustc_middle[2e38e64f479fe5b8]::ty::context::GlobalCtxt>::enter::<rustc_driver_impl[fead4037fc65a3e4]::run_compiler::{closure#1}::{closure#2}::{closure#4}, core[d7f3879bb305828b]::result::Result<(), rustc_span[a321f1cb1523dd0b]::ErrorGuaranteed>>
  41:     0x7f944442fd72 - <rustc_interface[c9554cd0b74ea93d]::interface::Compiler>::enter::<rustc_driver_impl[fead4037fc65a3e4]::run_compiler::{closure#1}::{closure#2}, core[d7f3879bb305828b]::result::Result<core[d7f3879bb305828b]::option::Option<rustc_interface[c9554cd0b74ea93d]::queries::Linker>, rustc_span[a321f1cb1523dd0b]::ErrorGuaranteed>>
  42:     0x7f944442cf64 - std[bbbc53192af03470]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[c9554cd0b74ea93d]::util::run_in_thread_pool_with_globals<rustc_interface[c9554cd0b74ea93d]::interface::run_compiler<core[d7f3879bb305828b]::result::Result<(), rustc_span[a321f1cb1523dd0b]::ErrorGuaranteed>, rustc_driver_impl[fead4037fc65a3e4]::run_compiler::{closure#1}>::{closure#0}, core[d7f3879bb305828b]::result::Result<(), rustc_span[a321f1cb1523dd0b]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[d7f3879bb305828b]::result::Result<(), rustc_span[a321f1cb1523dd0b]::ErrorGuaranteed>>
  43:     0x7f944442c68e - <<std[bbbc53192af03470]::thread::Builder>::spawn_unchecked_<rustc_interface[c9554cd0b74ea93d]::util::run_in_thread_pool_with_globals<rustc_interface[c9554cd0b74ea93d]::interface::run_compiler<core[d7f3879bb305828b]::result::Result<(), rustc_span[a321f1cb1523dd0b]::ErrorGuaranteed>, rustc_driver_impl[fead4037fc65a3e4]::run_compiler::{closure#1}>::{closure#0}, core[d7f3879bb305828b]::result::Result<(), rustc_span[a321f1cb1523dd0b]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[d7f3879bb305828b]::result::Result<(), rustc_span[a321f1cb1523dd0b]::ErrorGuaranteed>>::{closure#1} as core[d7f3879bb305828b]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  44:     0x7f9441fcddc5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5a713c95dff49eb9
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/alloc/src/boxed.rs:2007:9
  45:     0x7f9441fcddc5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6c2630f276b49e94
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/alloc/src/boxed.rs:2007:9
  46:     0x7f9441fcddc5 - std::sys::unix::thread::Thread::new::thread_start::he7c79aaf88d71e7c
                               at /rustc/0308df23e621e783e31a27ca5beaa01b9df60d4a/library/std/src/sys/unix/thread.rs:108:17
  47:     0x7f9441e8e609 - start_thread
  48:     0x7f9441db1133 - clone
  49:                0x0 - <unknown>

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 attach the file at `/home/nico/.cargo/registry/src/index.crates.io-6f17d22bba15001f/inventory-0.3.8/rustc-ice-2023-07-22T02:32:23.67953624Z-23638.txt` to your bug report

note: compiler flags: --crate-type lib -C embed-bitcode=no -C debuginfo=2

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

query stack during panic:
#0 [layout_of] computing layout of `iter<T>`
#1 [mir_drops_elaborated_and_const_checked] elaborating drops for `ITER::<impl at /home/nico/.cargo/registry/src/index.crates.io-6f17d22bba15001f/inventory-0.3.8/src/lib.rs:284:5: 284:46>::into_iter`
#2 [analysis] running analysis passes on this crate
end of query stack
error: could not compile `inventory` (lib)

To Reproduce
Steps to reproduce the behavior:

1. cd examples/ssr_modes or cargo leptos new --git https://github.com/leptos-rs/start
2. cargo leptos watch

Expected behavior
Should compile and run.

[rnoba]

I'm with the same problem, is that really a rust compiler error? maybe we should follow the notes and report this.

[gbj]

Agreed, definitely open an ICE issue with the steps in the note.

Any nightly version after about 2023-06-28 should work fine with current Leptos. I haven't bumped into this compiler issue because I'm on an early-July nightly still... Maybe try downgrading to a slightly less nightly nightly and see where it starts breaking?

ETA: Note the final line—

error: could not compile `inventory` (lib)

So this is actually a compiler panic while compiling inventory, a dependency Leptos uses for automatic server function registration. Of course I'll leave the issue open for visibility but I don't think there's anything we can do other than downgrade to a working nightly.

[j0lol]

hey, i reported this and it got fixed in the compiler! rust-lang/rust#113941