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Prevent opaque types being instantiated twice with different regions within the...

 1 month ago
source link: https://github.com/rust-lang/rust/pull/116935
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Prevent opaque types being instantiated twice with different regions within the same function by oli-obk · Pull Request #116935 · rust-lang/rust · GitHub

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Oct 20, 2023

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🚧 Experiment pr-116935 is now running

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🎉 Experiment pr-116935 is completed! 📊 84 regressed and 2 fixed (380145 total) 📰 Open the full report.

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added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties.

and removed S-waiting-on-crater Status: Waiting on a crater run to be completed.

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Oct 27, 2023

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Almost everything in the root regressions list is spurious disk failures (and the rest is unrelated ICEs, possibly due to disk space issues), though

 thread 'rustc' panicked at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/compiler/rustc_serialize/src/opaque.rs:233:42:
[INFO] [stderr] range start index 1525578 out of range for slice of length 1269760
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7fa125b6917c - std::backtrace_rs::backtrace::libunwind::trace::h1f94320f2e6a67ac
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]    1:     0x7fa125b6917c - std::backtrace_rs::backtrace::trace_unsynchronized::h20b345c7dcabad28
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7fa125b6917c - std::sys_common::backtrace::_print_fmt::h1c6b579a86ac571e
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x7fa125b6917c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h0676035e212b50ec
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]    4:     0x7fa125bcb400 - core::fmt::rt::Argument::fmt::ha6041a4893633223
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]    5:     0x7fa125bcb400 - core::fmt::write::h11d7df817e44fac2
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/core/src/fmt/mod.rs:1117:17
[INFO] [stderr]    6:     0x7fa125b5d00f - std::io::Write::write_fmt::h27916ce7b82ceedf
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/std/src/io/mod.rs:1762:15
[INFO] [stderr]    7:     0x7fa125b68f64 - std::sys_common::backtrace::_print::h5c780b472386b0af
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]    8:     0x7fa125b68f64 - std::sys_common::backtrace::print::h11bae2f1a0ab82fc
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]    9:     0x7fa125b6bbf7 - std::panicking::default_hook::{{closure}}::h8296a8c48c99a0fb
[INFO] [stderr]   10:     0x7fa125b6b95f - std::panicking::default_hook::h99bc273f02cfb87d
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/std/src/panicking.rs:292:9
[INFO] [stderr]     Checking systemstat v0.2.3
[INFO] [stderr]   11:     0x7fa1286a1590 - std[fafc877e3f4be7b4]::panicking::update_hook::<alloc[81b46284dcdbf2c6]::boxed::Box<rustc_driver_impl[ad2e13ae3ebaaf24]::install_ice_hook::{closure#0}>>::{closure#0}
[INFO] [stderr]   12:     0x7fa125b6c338 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h17f17d8ab4e43e66
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/alloc/src/boxed.rs:2021:9
[INFO] [stderr]   13:     0x7fa125b6c338 - std::panicking::rust_panic_with_hook::h48200e0ad4451fc0
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/std/src/panicking.rs:735:13
[INFO] [stderr]   14:     0x7fa125b6c08e - std::panicking::begin_panic_handler::{{closure}}::ha531ed5b4fb897c6
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/std/src/panicking.rs:609:13
[INFO] [stderr]   15:     0x7fa125b69646 - std::sys_common::backtrace::__rust_end_short_backtrace::h934ae3f8127b5c1c
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stderr]   16:     0x7fa125b6bdf2 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/std/src/panicking.rs:597:5
[INFO] [stderr]   17:     0x7fa125bc7b25 - core::panicking::panic_fmt::hd0329d80ff1c2596
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/core/src/panicking.rs:72:14
[INFO] [stderr]   18:     0x7fa125bcdd72 - core::slice::index::slice_start_index_len_fail_rt::h9029932fc1a5fcc5
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/core/src/slice/index.rs:52:5
[INFO] [stderr]   19:     0x7fa125bcdd72 - core::slice::index::slice_start_index_len_fail::h8e29ebc9dc2644ae
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/core/src/slice/index.rs:40:9
[INFO] [stderr]   20:     0x7fa12a4163bb - <rustc_metadata[e36cc7b7e19843ab]::locator::CrateLocator>::extract_one
[INFO] [stderr]   21:     0x7fa12a41505a - <rustc_metadata[e36cc7b7e19843ab]::locator::CrateLocator>::extract_lib
[INFO] [stderr]   22:     0x7fa12a30c1fa - <rustc_metadata[e36cc7b7e19843ab]::locator::CrateLocator>::maybe_load_library_crate
[INFO] [stderr]   23:     0x7fa12a30b87e - <rustc_metadata[e36cc7b7e19843ab]::creader::CrateLoader>::load
[INFO] [stderr]   24:     0x7fa12a40cf0b - <rustc_metadata[e36cc7b7e19843ab]::creader::CrateLoader>::maybe_resolve_crate
[INFO] [stderr]   25:     0x7fa129f9ccc1 - <rustc_resolve[799b7f14818798b6]::Resolver>::early_resolve_ident_in_lexical_scope
[INFO] [stderr]   26:     0x7fa129fd19d2 - <rustc_resolve[799b7f14818798b6]::Resolver>::resolve_path_with_ribs
[INFO] [stderr]   27:     0x7fa129fa53a2 - <rustc_resolve[799b7f14818798b6]::Resolver as rustc_expand[34fa88f58ed26183]::base::ResolverExpand>::resolve_imports
[INFO] [stderr]   28:     0x7fa12a1c5a1a - <rustc_expand[34fa88f58ed26183]::expand::MacroExpander>::fully_expand_fragment
[INFO] [stderr]   29:     0x7fa12a1c4738 - <rustc_expand[34fa88f58ed26183]::expand::MacroExpander>::expand_crate
[INFO] [stderr]   30:     0x7fa12a51885f - rustc_interface[d6345c2814166138]::passes::resolver_for_lowering
[INFO] [stderr]   31:     0x7fa12a517d2b - rustc_query_impl[be6bc7142f779313]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[be6bc7142f779313]::query_impl::resolver_for_lowering::dynamic_query::{closure#2}::{closure#0}, rustc_middle[fff2dae698ec3512]::query::erase::Erased<[u8; 8usize]>>
[INFO] [stderr]   32:     0x7fa12a516db3 - rustc_query_system[162c1fefa01d75b4]::query::plumbing::try_execute_query::<rustc_query_impl[be6bc7142f779313]::DynamicConfig<rustc_query_system[162c1fefa01d75b4]::query::caches::SingleCache<rustc_middle[fff2dae698ec3512]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[be6bc7142f779313]::plumbing::QueryCtxt, false>
[INFO] [stderr]   33:     0x7fa12a516449 - rustc_query_impl[be6bc7142f779313]::query_impl::resolver_for_lowering::get_query_non_incr::__rust_end_short_backtrace
[INFO] [stderr]   34:     0x7fa12a52f04b - std[fafc877e3f4be7b4]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[d6345c2814166138]::util::run_in_thread_with_globals<rustc_interface[d6345c2814166138]::interface::run_compiler<core[a27ae4b4bc8367c2]::result::Result<(), rustc_span[9fa80e483ea6db9a]::ErrorGuaranteed>, rustc_driver_impl[ad2e13ae3ebaaf24]::run_compiler::{closure#1}>::{closure#0}, core[a27ae4b4bc8367c2]::result::Result<(), rustc_span[9fa80e483ea6db9a]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a27ae4b4bc8367c2]::result::Result<(), rustc_span[9fa80e483ea6db9a]::ErrorGuaranteed>>
[INFO] [stderr]   35:     0x7fa12a52e533 - <<std[fafc877e3f4be7b4]::thread::Builder>::spawn_unchecked_<rustc_interface[d6345c2814166138]::util::run_in_thread_with_globals<rustc_interface[d6345c2814166138]::interface::run_compiler<core[a27ae4b4bc8367c2]::result::Result<(), rustc_span[9fa80e483ea6db9a]::ErrorGuaranteed>, rustc_driver_impl[ad2e13ae3ebaaf24]::run_compiler::{closure#1}>::{closure#0}, core[a27ae4b4bc8367c2]::result::Result<(), rustc_span[9fa80e483ea6db9a]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a27ae4b4bc8367c2]::result::Result<(), rustc_span[9fa80e483ea6db9a]::ErrorGuaranteed>>::{closure#1} as core[a27ae4b4bc8367c2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   36:     0x7fa125b77105 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h43cc50cdd0629acf
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/alloc/src/boxed.rs:2007:9
[INFO] [stderr]   37:     0x7fa125b77105 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5f04d292d31a8e17
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/alloc/src/boxed.rs:2007:9
[INFO] [stderr]   38:     0x7fa125b77105 - std::sys::unix::thread::Thread::new::thread_start::h2e74a97d86ab0436
[INFO] [stderr]                                at /rustc/5f19a76e461cf77b2134117fdb950227589d6a08/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stderr]   39:     0x7fa1258e1ac3 - <unknown>
[INFO] [stderr]   40:     0x7fa125972bf4 - __clone
[INFO] [stderr]   41:                0x0 - <unknown>

had me stumped for a moment until I realized that opaque.rs is not opaque types, but some encoder terminology

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