Compiling playground v0.0.1 (/playground) error: this file contains an unclosed delimiter --> src/main.rs:1:20 | 1 | fn r({){Ok{d..||_=m | - - ^ | | | | | unclosed delimiter | unclosed delimiter error: expected parameter name, found `{` --> src/main.rs:1:6 | 1 | fn r({){Ok{d..||_=m | ^ expected parameter name error: expected one of `,` or `}`, found `..` --> src/main.rs:1:6 | 1 | fn r({){Ok{d..||_=m | ^ -^ | | | | | help: `}` may belong here | unclosed delimiter error[E0425]: cannot find value `d` in this scope --> src/main.rs:1:12 | 1 | fn r({){Ok{d..||_=m | ^ not found in this scope error[E0425]: cannot find value `m` in this scope --> src/main.rs:1:19 | 1 | fn r({){Ok{d..||_=m | ^ not found in this scope error[E0559]: variant `Result<_, _>::Ok` has no field named `d` --> src/main.rs:1:12 | 1 | fn r({){Ok{d..||_=m | ^ field does not exist | help: `Result<_, _>::Ok` is a tuple variant, use the appropriate syntax | 1 | fn r({){Result<_, _>::Ok(/* fields */) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error[E0308]: mismatched types --> src/main.rs:1:9 | 1 | fn r({){Ok{d..||_=m | -^^^^^^^^^^^ expected `()`, found enum `Result` | | | possibly return type missing here? | = note: expected unit type `()` found enum `Result<_, _>` error: internal compiler error: compiler/rustc_typeck/src/check/fn_ctxt/_impl.rs:139:13: no type for local variable local _=m (hir_id=HirId { owner: DefId(0:3 ~ playground[87de]::r), local_id: 6 }) --> src/main.rs:1:17 | 1 | fn r({){Ok{d..||_=m | ^^^ thread 'rustc' panicked at 'Box<dyn Any>', /rustc/cfa3fe5af339e724209b25715282adae0c61628f/compiler/rustc_errors/src/lib.rs:1115:9 stack backtrace: 0: std::panicking::begin_panic::<rustc_errors::ExplicitBug> 1: std::panic::panic_any::<rustc_errors::ExplicitBug> 2: <rustc_errors::HandlerInner>::span_bug::<rustc_span::span_encoding::Span> 3: <rustc_errors::Handler>::span_bug::<rustc_span::span_encoding::Span> 4: rustc_middle::ty::context::tls::with_opt::<rustc_middle::util::bug::opt_span_bug_fmt<rustc_span::span_encoding::Span>::{closure#0}, ()> 5: rustc_middle::util::bug::opt_span_bug_fmt::<rustc_span::span_encoding::Span> 6: rustc_middle::util::bug::span_bug_fmt::<rustc_span::span_encoding::Span> 7: <rustc_typeck::check::writeback::WritebackCx as rustc_hir::intravisit::Visitor>::visit_local 8: <rustc_typeck::check::writeback::WritebackCx as rustc_hir::intravisit::Visitor>::visit_expr 9: <rustc_typeck::check::writeback::WritebackCx as rustc_hir::intravisit::Visitor>::visit_expr 10: <rustc_typeck::check::writeback::WritebackCx as rustc_hir::intravisit::Visitor>::visit_expr 11: <rustc_typeck::check::writeback::WritebackCx as rustc_hir::intravisit::Visitor>::visit_expr 12: <rustc_typeck::check::fn_ctxt::FnCtxt>::resolve_type_vars_in_body 13: <rustc_infer::infer::InferCtxtBuilder>::enter::<&rustc_middle::ty::context::TypeckResults, <rustc_typeck::check::inherited::InheritedBuilder>::enter<rustc_typeck::check::typeck_with_fallback<rustc_typeck::check::typeck::{closure#0}>::{closure#1}, &rustc_middle::ty::context::TypeckResults>::{closure#0}> 14: rustc_typeck::check::typeck 15: 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>> 16: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck 17: rustc_typeck::check::typeck 18: 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>> 19: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck 20: <rustc_middle::hir::map::Map>::par_body_owners::<rustc_typeck::check::typeck_item_bodies::{closure#0}> 21: rustc_typeck::check::typeck_item_bodies 22: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<(), ()>> 23: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::typeck_item_bodies, rustc_query_impl::plumbing::QueryCtxt> 24: <rustc_session::session::Session>::time::<(), rustc_typeck::check_crate::{closure#7}> 25: rustc_typeck::check_crate 26: rustc_interface::passes::analysis 27: 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>>> 28: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::analysis, rustc_query_impl::plumbing::QueryCtxt> 29: <rustc_interface::passes::QueryContext>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}::{closure#3}, core::result::Result<(), rustc_errors::ErrorReported>> 30: <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>> 31: 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}> 32: rustc_interface::interface::create_compiler_and_run::<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}> note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. 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 (cfa3fe5af 2021-12-31) running on x86_64-unknown-linux-gnu note: compiler flags: -C embed-bitcode=no -C codegen-units=1 -C debuginfo=2 --crate-type bin note: some of the compiler flags provided by cargo are hidden query stack during panic: #0 [typeck] type-checking `r` #1 [typeck] type-checking `r::{closure#0}` #2 [typeck_item_bodies] type-checking all item bodies #3 [analysis] running analysis passes on this crate end of query stack Some errors have detailed explanations: E0308, E0425, E0559. For more information about an error, try `rustc --explain E0308`. error: could not compile `playground` due to 7 previous errors