Error when trying to suggest members of object

[ViktorVoloshko]

rust-analyzer version: rust-analyzer version: 0.3.1607-standalone (429a381 2023-07-30)

rustc version: rustc 1.71.1 (eb26296b5 2023-08-03)

relevant settings: default Windows rustup installation, VSCode 1.81.0

While playing around with toml crate (Rust newbie, just trying things) got few errors when my cursor after the dot in following code:

use std::{io::Read, fs::File};
use toml::Table;

fn main() {
    let mut buf = String::new();
    File::open("test.toml").unwrap().read_to_string(&mut buf).unwrap();
    let country = buf.parse::<Table>().unwrap();
    for line in country {
        println!("{}", line.1**.**);
    }
}

Cargo.toml

[package]
name = "toml_test"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
toml = "0.7.6"

rust-analyzer log (last strings because of limit):

Panic context:
> 
version: 0.3.1607-standalone (429a3816a 2023-07-30)
request: textDocument/codeAction CodeActionParams {
    text_document: TextDocumentIdentifier {
        uri: Url {
            scheme: "file",
            cannot_be_a_base: false,
            username: "",
            password: None,
            host: None,
            port: None,
            path: "/c%3A/Users/ViktorVoloshko/projects/toml_test/src/main.rs",
            query: None,
            fragment: None,
        },
    },
    range: Range {
        start: Position {
            line: 0,
            character: 0,
        },
        end: Position {
            line: 0,
            character: 0,
        },
    },
    context: CodeActionContext {
        diagnostics: [],
        only: None,
        trigger_kind: Some(
            Automatic,
        ),
    },
    work_done_progress_params: WorkDoneProgressParams {
        work_done_token: None,
    },
    partial_result_params: PartialResultParams {
        partial_result_token: None,
    },
}

thread 'Worker' panicked at 'Fail to convert given literal Literal {
    text: "",
    span: 7,
}', crates\mbe\src\to_parser_input.rs:45:48
stack backtrace:
   0: std::panicking::begin_panic_handler
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\std\src\panicking.rs:593
   1: core::panicking::panic_fmt
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\core\src\panicking.rs:67
   2: mbe::to_parser_input::to_parser_input
   3: mbe::syntax_bridge::token_tree_to_syntax_node
   4: <hir_expand::db::ParseMacroExpansionQuery as salsa::plumbing::QueryFunction>::execute
   5: salsa::runtime::Runtime::execute_query_implementation
   6: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_expand::db::MacroArgNodeQuery>>
   7: salsa::derived::slot::Slot<Q,MP>::read
   8: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
   9: <DB as hir_expand::db::ExpandDatabase>::parse_macro_expansion
  10: hir_expand::eager::expand_eager_macro_input
  11: hir_def::macro_call_as_call_id_
  12: <hir_expand::InFile<&syntax::ast::generated::nodes::MacroCall> as hir_def::AsMacroCall>::as_call_id_with_errors
  13: hir_def::expander::Expander::enter_expand
  14: hir_def::body::lower::ExprCollector::maybe_collect_expr
  15: <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter
  16: <alloc::boxed::Box<[I]> as core::iter::traits::collect::FromIterator<I>>::from_iter
  17: hir_def::body::lower::ExprCollector::maybe_collect_expr
  18: hir_def::body::lower::ExprCollector::collect_stmt
  19: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  20: hir_def::body::lower::ExprCollector::collect_stmt
  21: hir_def::body::lower::ExprCollector::maybe_collect_expr
  22: hir_def::body::lower::ExprCollector::maybe_collect_expr
  23: hir_def::body::lower::ExprCollector::collect_stmt
  24: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  25: hir_def::body::lower::ExprCollector::collect_stmt
  26: hir_def::body::lower::ExprCollector::maybe_collect_expr
  27: hir_def::body::lower::ExprCollector::collect_pat
  28: hir_def::body::lower::ExprCollector::maybe_collect_expr
  29: hir_def::body::lower::ExprCollector::collect_stmt
  30: hir_def::body::lower::ExprCollector::maybe_collect_expr
  31: hir_def::body::lower::lower
  32: hir_def::body::Body::body_with_source_map_query
  33: salsa::runtime::Runtime::execute_query_implementation
  34: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_def::db::UnionDataWithDiagnosticsQuery>>
  35: salsa::derived::slot::Slot<Q,MP>::read
  36: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
  37: <DB as hir_def::db::DefDatabase>::body_with_source_map
  38: hir::DefWithBody::diagnostics
  39: hir::ModuleDef::diagnostics
  40: hir::Module::diagnostics
  41: ide_diagnostics::diagnostics
  42: std::panicking::try
  43: rust_analyzer::handlers::request::handle_code_action
  44: core::ops::function::FnOnce::call_once{{vtable.shim}}
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
Panic context:
> 
version: 0.3.1607-standalone (429a3816a 2023-07-30)
request: textDocument/inlayHint InlayHintParams {
    work_done_progress_params: WorkDoneProgressParams {
        work_done_token: None,
    },
    text_document: TextDocumentIdentifier {
        uri: Url {
            scheme: "file",
            cannot_be_a_base: false,
            username: "",
            password: None,
            host: None,
            port: None,
            path: "/c%3A/Users/ViktorVoloshko/projects/toml_test/src/main.rs",
            query: None,
            fragment: None,
        },
    },
    range: Range {
        start: Position {
            line: 0,
            character: 0,
        },
        end: Position {
            line: 10,
            character: 1,
        },
    },
}

thread 'Worker' panicked at 'Fail to convert given literal Literal {
    text: "",
    span: 7,
}', crates\mbe\src\to_parser_input.rs:45:48
stack backtrace:
   0: std::panicking::begin_panic_handler
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\std\src\panicking.rs:593
   1: core::panicking::panic_fmt
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\core\src\panicking.rs:67
   2: mbe::to_parser_input::to_parser_input
   3: mbe::syntax_bridge::token_tree_to_syntax_node
   4: <hir_expand::db::ParseMacroExpansionQuery as salsa::plumbing::QueryFunction>::execute
   5: salsa::runtime::Runtime::execute_query_implementation
   6: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_expand::db::MacroArgNodeQuery>>
   7: salsa::derived::slot::Slot<Q,MP>::read
   8: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
   9: <DB as hir_expand::db::ExpandDatabase>::parse_macro_expansion
  10: hir_expand::eager::expand_eager_macro_input
  11: hir_def::macro_call_as_call_id_
  12: <hir_expand::InFile<&syntax::ast::generated::nodes::MacroCall> as hir_def::AsMacroCall>::as_call_id_with_errors
  13: hir_def::expander::Expander::enter_expand
  14: hir_def::body::lower::ExprCollector::maybe_collect_expr
  15: <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter
  16: <alloc::boxed::Box<[I]> as core::iter::traits::collect::FromIterator<I>>::from_iter
  17: hir_def::body::lower::ExprCollector::maybe_collect_expr
  18: hir_def::body::lower::ExprCollector::collect_stmt
  19: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  20: hir_def::body::lower::ExprCollector::collect_stmt
  21: hir_def::body::lower::ExprCollector::maybe_collect_expr
  22: hir_def::body::lower::ExprCollector::maybe_collect_expr
  23: hir_def::body::lower::ExprCollector::collect_stmt
  24: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  25: hir_def::body::lower::ExprCollector::collect_stmt
  26: hir_def::body::lower::ExprCollector::maybe_collect_expr
  27: hir_def::body::lower::ExprCollector::collect_pat
  28: hir_def::body::lower::ExprCollector::maybe_collect_expr
  29: hir_def::body::lower::ExprCollector::collect_stmt
  30: hir_def::body::lower::ExprCollector::maybe_collect_expr
  31: hir_def::body::lower::lower
  32: hir_def::body::Body::body_with_source_map_query
  33: salsa::runtime::Runtime::execute_query_implementation
  34: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_def::db::UnionDataWithDiagnosticsQuery>>
  35: salsa::derived::slot::Slot<Q,MP>::read
  36: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
  37: <DB as hir_def::db::DefDatabase>::body_with_source_map
  38: hir::source_analyzer::SourceAnalyzer::new_for_body_no_infer
  39: hir::semantics::SemanticsImpl::analyze_impl
  40: hir::semantics::SemanticsImpl::descend_into_macros_impl
  41: hir::semantics::SemanticsImpl::descend_node_into_attributes
  42: ide::inlay_hints::chaining::hints
  43: ide::inlay_hints::hints
  44: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  45: ide::inlay_hints::inlay_hints
  46: std::panicking::try
  47: rust_analyzer::handlers::request::handle_inlay_hints
  48: core::ops::function::FnOnce::call_once{{vtable.shim}}
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
[Error - 11:28:00 PM] Request textDocument/inlayHint failed.
  Message: request handler panicked: Fail to convert given literal Literal {
    text: "",
    span: 7,
}
  Code: -32603 
Panic context:
> 
version: 0.3.1607-standalone (429a3816a 2023-07-30)
request: textDocument/codeAction CodeActionParams {
    text_document: TextDocumentIdentifier {
        uri: Url {
            scheme: "file",
            cannot_be_a_base: false,
            username: "",
            password: None,
            host: None,
            port: None,
            path: "/c%3A/Users/ViktorVoloshko/projects/toml_test/src/main.rs",
            query: None,
            fragment: None,
        },
    },
    range: Range {
        start: Position {
            line: 10,
            character: 1,
        },
        end: Position {
            line: 10,
            character: 1,
        },
    },
    context: CodeActionContext {
        diagnostics: [],
        only: None,
        trigger_kind: Some(
            Automatic,
        ),
    },
    work_done_progress_params: WorkDoneProgressParams {
        work_done_token: None,
    },
    partial_result_params: PartialResultParams {
        partial_result_token: None,
    },
}

thread 'Worker' panicked at 'Fail to convert given literal Literal {
    text: "",
    span: 7,
}', crates\mbe\src\to_parser_input.rs:45:48
stack backtrace:
   0: std::panicking::begin_panic_handler
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\std\src\panicking.rs:593
   1: core::panicking::panic_fmt
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\core\src\panicking.rs:67
   2: mbe::to_parser_input::to_parser_input
   3: mbe::syntax_bridge::token_tree_to_syntax_node
   4: <hir_expand::db::ParseMacroExpansionQuery as salsa::plumbing::QueryFunction>::execute
   5: salsa::runtime::Runtime::execute_query_implementation
   6: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_expand::db::MacroArgNodeQuery>>
   7: salsa::derived::slot::Slot<Q,MP>::read
   8: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
   9: <DB as hir_expand::db::ExpandDatabase>::parse_macro_expansion
  10: hir_expand::eager::expand_eager_macro_input
  11: hir_def::macro_call_as_call_id_
  12: <hir_expand::InFile<&syntax::ast::generated::nodes::MacroCall> as hir_def::AsMacroCall>::as_call_id_with_errors
  13: hir_def::expander::Expander::enter_expand
  14: hir_def::body::lower::ExprCollector::maybe_collect_expr
  15: <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter
  16: <alloc::boxed::Box<[I]> as core::iter::traits::collect::FromIterator<I>>::from_iter
  17: hir_def::body::lower::ExprCollector::maybe_collect_expr
  18: hir_def::body::lower::ExprCollector::collect_stmt
  19: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  20: hir_def::body::lower::ExprCollector::collect_stmt
  21: hir_def::body::lower::ExprCollector::maybe_collect_expr
  22: hir_def::body::lower::ExprCollector::maybe_collect_expr
  23: hir_def::body::lower::ExprCollector::collect_stmt
  24: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  25: hir_def::body::lower::ExprCollector::collect_stmt
  26: hir_def::body::lower::ExprCollector::maybe_collect_expr
  27: hir_def::body::lower::ExprCollector::collect_pat
  28: hir_def::body::lower::ExprCollector::maybe_collect_expr
  29: hir_def::body::lower::ExprCollector::collect_stmt
  30: hir_def::body::lower::ExprCollector::maybe_collect_expr
  31: hir_def::body::lower::lower
  32: hir_def::body::Body::body_with_source_map_query
  33: salsa::runtime::Runtime::execute_query_implementation
  34: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_def::db::UnionDataWithDiagnosticsQuery>>
  35: salsa::derived::slot::Slot<Q,MP>::read
  36: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
  37: <DB as hir_def::db::DefDatabase>::body_with_source_map
  38: hir::DefWithBody::diagnostics
  39: hir::ModuleDef::diagnostics
  40: hir::Module::diagnostics
  41: ide_diagnostics::diagnostics
  42: std::panicking::try
  43: rust_analyzer::handlers::request::handle_code_action
  44: core::ops::function::FnOnce::call_once{{vtable.shim}}
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
Panic context:
> 
version: 0.3.1607-standalone (429a3816a 2023-07-30)
request: textDocument/semanticTokens/full/delta SemanticTokensDeltaParams {
    work_done_progress_params: WorkDoneProgressParams {
        work_done_token: None,
    },
    partial_result_params: PartialResultParams {
        partial_result_token: None,
    },
    text_document: TextDocumentIdentifier {
        uri: Url {
            scheme: "file",
            cannot_be_a_base: false,
            username: "",
            password: None,
            host: None,
            port: None,
            path: "/c%3A/Users/ViktorVoloshko/projects/toml_test/src/main.rs",
            query: None,
            fragment: None,
        },
    },
    previous_result_id: "2",
}

thread 'Worker' panicked at 'Fail to convert given literal Literal {
    text: "",
    span: 7,
}', crates\mbe\src\to_parser_input.rs:45:48
stack backtrace:
   0: std::panicking::begin_panic_handler
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\std\src\panicking.rs:593
   1: core::panicking::panic_fmt
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\core\src\panicking.rs:67
   2: mbe::to_parser_input::to_parser_input
   3: mbe::syntax_bridge::token_tree_to_syntax_node
   4: <hir_expand::db::ParseMacroExpansionQuery as salsa::plumbing::QueryFunction>::execute
   5: salsa::runtime::Runtime::execute_query_implementation
   6: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_expand::db::MacroArgNodeQuery>>
   7: salsa::derived::slot::Slot<Q,MP>::read
   8: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
   9: <DB as hir_expand::db::ExpandDatabase>::parse_macro_expansion
  10: hir_expand::eager::expand_eager_macro_input
  11: hir_def::macro_call_as_call_id_
  12: <hir_expand::InFile<&syntax::ast::generated::nodes::MacroCall> as hir_def::AsMacroCall>::as_call_id_with_errors
  13: hir_def::expander::Expander::enter_expand
  14: hir_def::body::lower::ExprCollector::maybe_collect_expr
  15: <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter
  16: <alloc::boxed::Box<[I]> as core::iter::traits::collect::FromIterator<I>>::from_iter
  17: hir_def::body::lower::ExprCollector::maybe_collect_expr
  18: hir_def::body::lower::ExprCollector::collect_stmt
  19: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  20: hir_def::body::lower::ExprCollector::collect_stmt
  21: hir_def::body::lower::ExprCollector::maybe_collect_expr
  22: hir_def::body::lower::ExprCollector::maybe_collect_expr
  23: hir_def::body::lower::ExprCollector::collect_stmt
  24: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  25: hir_def::body::lower::ExprCollector::collect_stmt
  26: hir_def::body::lower::ExprCollector::maybe_collect_expr
  27: hir_def::body::lower::ExprCollector::collect_pat
  28: hir_def::body::lower::ExprCollector::maybe_collect_expr
  29: hir_def::body::lower::ExprCollector::collect_stmt
  30: hir_def::body::lower::ExprCollector::maybe_collect_expr
  31: hir_def::body::lower::lower
  32: hir_def::body::Body::body_with_source_map_query
  33: salsa::runtime::Runtime::execute_query_implementation
  34: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_def::db::UnionDataWithDiagnosticsQuery>>
  35: salsa::derived::slot::Slot<Q,MP>::read
  36: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
  37: <DB as hir_def::db::DefDatabase>::body_with_source_map
  38: hir::source_analyzer::SourceAnalyzer::new_for_body
  39: hir::semantics::SemanticsImpl::analyze_impl
  40: ide_db::defs::NameClass::classify
  41: ide::syntax_highlighting::highlight::name_like
  42: ide::syntax_highlighting::highlight
  43: ide::syntax_highlighting::highlight
  44: std::panicking::try
  45: rust_analyzer::handlers::request::handle_semantic_tokens_full_delta
  46: core::ops::function::FnOnce::call_once{{vtable.shim}}
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
[Error - 11:28:00 PM] Request textDocument/semanticTokens/full/delta failed.
  Message: request handler panicked: Fail to convert given literal Literal {
    text: "",
    span: 7,
}
  Code: -32603 
Panic context:
> 
version: 0.3.1607-standalone (429a3816a 2023-07-30)
request: textDocument/hover HoverParams {
    text_document: TextDocumentIdentifier {
        uri: Url {
            scheme: "file",
            cannot_be_a_base: false,
            username: "",
            password: None,
            host: None,
            port: None,
            path: "/c%3A/Users/ViktorVoloshko/projects/toml_test/src/main.rs",
            query: None,
            fragment: None,
        },
    },
    position: Position(
        Position {
            line: 8,
            character: 29,
        },
    ),
    work_done_progress_params: WorkDoneProgressParams {
        work_done_token: None,
    },
}

thread 'Worker' panicked at 'Fail to convert given literal Literal {
    text: "",
    span: 7,
}', crates\mbe\src\to_parser_input.rs:45:48
stack backtrace:
   0: std::panicking::begin_panic_handler
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\std\src\panicking.rs:593
   1: core::panicking::panic_fmt
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\core\src\panicking.rs:67
   2: mbe::to_parser_input::to_parser_input
   3: mbe::syntax_bridge::token_tree_to_syntax_node
   4: <hir_expand::db::ParseMacroExpansionQuery as salsa::plumbing::QueryFunction>::execute
   5: salsa::runtime::Runtime::execute_query_implementation
   6: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_expand::db::MacroArgNodeQuery>>
   7: salsa::derived::slot::Slot<Q,MP>::read
   8: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
   9: <DB as hir_expand::db::ExpandDatabase>::parse_macro_expansion
  10: hir_expand::eager::expand_eager_macro_input
  11: hir_def::macro_call_as_call_id_
  12: <hir_expand::InFile<&syntax::ast::generated::nodes::MacroCall> as hir_def::AsMacroCall>::as_call_id_with_errors
  13: hir_def::expander::Expander::enter_expand
  14: hir_def::body::lower::ExprCollector::maybe_collect_expr
  15: <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter
  16: <alloc::boxed::Box<[I]> as core::iter::traits::collect::FromIterator<I>>::from_iter
  17: hir_def::body::lower::ExprCollector::maybe_collect_expr
  18: hir_def::body::lower::ExprCollector::collect_stmt
  19: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  20: hir_def::body::lower::ExprCollector::collect_stmt
  21: hir_def::body::lower::ExprCollector::maybe_collect_expr
  22: hir_def::body::lower::ExprCollector::maybe_collect_expr
  23: hir_def::body::lower::ExprCollector::collect_stmt
  24: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  25: hir_def::body::lower::ExprCollector::collect_stmt
  26: hir_def::body::lower::ExprCollector::maybe_collect_expr
  27: hir_def::body::lower::ExprCollector::collect_pat
  28: hir_def::body::lower::ExprCollector::maybe_collect_expr
  29: hir_def::body::lower::ExprCollector::collect_stmt
  30: hir_def::body::lower::ExprCollector::maybe_collect_expr
  31: hir_def::body::lower::lower
  32: hir_def::body::Body::body_with_source_map_query
  33: salsa::runtime::Runtime::execute_query_implementation
  34: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_def::db::UnionDataWithDiagnosticsQuery>>
  35: salsa::derived::slot::Slot<Q,MP>::maybe_changed_since
  36: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::maybe_changed_since
  37: hir_def::db::DefDatabaseGroupStorage__::maybe_changed_since
  38: <ide_db::RootDatabase as salsa::plumbing::DatabaseOps>::maybe_changed_since
  39: salsa::derived::slot::MemoRevisions::validate_memoized_value
  40: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_def::db::UnionDataWithDiagnosticsQuery>>
  41: salsa::derived::slot::Slot<Q,MP>::read
  42: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
  43: <DB as hir_def::db::DefDatabase>::body
  44: <hir_def::DefWithBodyId as hir_def::child_by_source::ChildBySource>::child_by_source_to
  45: hir::semantics::source_to_def::SourceToDefCtx::cache_for
  46: hir::semantics::source_to_def::SourceToDefCtx::item_to_macro_call
  47: hir::semantics::SemanticsImpl::is_attr_macro_call
  48: ide::hover::hover
  49: std::panicking::try
  50: rust_analyzer::handlers::request::handle_hover
  51: core::ops::function::FnOnce::call_once{{vtable.shim}}
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
[Error - 11:28:00 PM] Request textDocument/hover failed.
  Message: request handler panicked: Fail to convert given literal Literal {
    text: "",
    span: 7,
}
  Code: -32603 
Panic context:
> 
version: 0.3.1607-standalone (429a3816a 2023-07-30)
request: textDocument/codeAction CodeActionParams {
    text_document: TextDocumentIdentifier {
        uri: Url {
            scheme: "file",
            cannot_be_a_base: false,
            username: "",
            password: None,
            host: None,
            port: None,
            path: "/c%3A/Users/ViktorVoloshko/projects/toml_test/src/main.rs",
            query: None,
            fragment: None,
        },
    },
    range: Range {
        start: Position {
            line: 8,
            character: 30,
        },
        end: Position {
            line: 8,
            character: 30,
        },
    },
    context: CodeActionContext {
        diagnostics: [],
        only: None,
        trigger_kind: Some(
            Automatic,
        ),
    },
    work_done_progress_params: WorkDoneProgressParams {
        work_done_token: None,
    },
    partial_result_params: PartialResultParams {
        partial_result_token: None,
    },
}

thread 'Worker' panicked at 'Fail to convert given literal Literal {
    text: "",
    span: 7,
}', crates\mbe\src\to_parser_input.rs:45:48
stack backtrace:
   0: std::panicking::begin_panic_handler
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\std\src\panicking.rs:593
   1: core::panicking::panic_fmt
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\core\src\panicking.rs:67
   2: mbe::to_parser_input::to_parser_input
   3: mbe::syntax_bridge::token_tree_to_syntax_node
   4: <hir_expand::db::ParseMacroExpansionQuery as salsa::plumbing::QueryFunction>::execute
   5: salsa::runtime::Runtime::execute_query_implementation
   6: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_expand::db::MacroArgNodeQuery>>
   7: salsa::derived::slot::Slot<Q,MP>::read
   8: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
   9: <DB as hir_expand::db::ExpandDatabase>::parse_macro_expansion
  10: hir_expand::eager::expand_eager_macro_input
  11: hir_def::macro_call_as_call_id_
  12: <hir_expand::InFile<&syntax::ast::generated::nodes::MacroCall> as hir_def::AsMacroCall>::as_call_id_with_errors
  13: hir_def::expander::Expander::enter_expand
  14: hir_def::body::lower::ExprCollector::maybe_collect_expr
  15: <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter
  16: <alloc::boxed::Box<[I]> as core::iter::traits::collect::FromIterator<I>>::from_iter
  17: hir_def::body::lower::ExprCollector::maybe_collect_expr
  18: hir_def::body::lower::ExprCollector::collect_stmt
  19: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  20: hir_def::body::lower::ExprCollector::collect_stmt
  21: hir_def::body::lower::ExprCollector::maybe_collect_expr
  22: hir_def::body::lower::ExprCollector::maybe_collect_expr
  23: hir_def::body::lower::ExprCollector::collect_stmt
  24: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  25: hir_def::body::lower::ExprCollector::collect_stmt
  26: hir_def::body::lower::ExprCollector::maybe_collect_expr
  27: hir_def::body::lower::ExprCollector::collect_pat
  28: hir_def::body::lower::ExprCollector::maybe_collect_expr
  29: hir_def::body::lower::ExprCollector::collect_stmt
  30: hir_def::body::lower::ExprCollector::maybe_collect_expr
  31: hir_def::body::lower::lower
  32: hir_def::body::Body::body_with_source_map_query
  33: salsa::runtime::Runtime::execute_query_implementation
  34: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_def::db::UnionDataWithDiagnosticsQuery>>
  35: salsa::derived::slot::Slot<Q,MP>::read
  36: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
  37: <DB as hir_def::db::DefDatabase>::body_with_source_map
  38: hir::DefWithBody::diagnostics
  39: hir::ModuleDef::diagnostics
  40: hir::Module::diagnostics
  41: ide_diagnostics::diagnostics
  42: std::panicking::try
  43: rust_analyzer::handlers::request::handle_code_action
  44: core::ops::function::FnOnce::call_once{{vtable.shim}}
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
Panic context:
> 
version: 0.3.1607-standalone (429a3816a 2023-07-30)
request: textDocument/inlayHint InlayHintParams {
    work_done_progress_params: WorkDoneProgressParams {
        work_done_token: None,
    },
    text_document: TextDocumentIdentifier {
        uri: Url {
            scheme: "file",
            cannot_be_a_base: false,
            username: "",
            password: None,
            host: None,
            port: None,
            path: "/c%3A/Users/ViktorVoloshko/projects/toml_test/src/main.rs",
            query: None,
            fragment: None,
        },
    },
    range: Range {
        start: Position {
            line: 0,
            character: 0,
        },
        end: Position {
            line: 10,
            character: 1,
        },
    },
}

thread 'Worker' panicked at 'Fail to convert given literal Literal {
    text: "",
    span: 7,
}', crates\mbe\src\to_parser_input.rs:45:48
stack backtrace:
   0: std::panicking::begin_panic_handler
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\std\src\panicking.rs:593
   1: core::panicking::panic_fmt
             at /rustc/8ede3aae28fe6e4d52b38157d7bfe0d3bceef225/library\core\src\panicking.rs:67
   2: mbe::to_parser_input::to_parser_input
   3: mbe::syntax_bridge::token_tree_to_syntax_node
   4: <hir_expand::db::ParseMacroExpansionQuery as salsa::plumbing::QueryFunction>::execute
   5: salsa::runtime::Runtime::execute_query_implementation
   6: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_expand::db::MacroArgNodeQuery>>
   7: salsa::derived::slot::Slot<Q,MP>::read
   8: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
   9: <DB as hir_expand::db::ExpandDatabase>::parse_macro_expansion
  10: hir_expand::eager::expand_eager_macro_input
  11: hir_def::macro_call_as_call_id_
  12: <hir_expand::InFile<&syntax::ast::generated::nodes::MacroCall> as hir_def::AsMacroCall>::as_call_id_with_errors
  13: hir_def::expander::Expander::enter_expand
  14: hir_def::body::lower::ExprCollector::maybe_collect_expr
  15: <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter
  16: <alloc::boxed::Box<[I]> as core::iter::traits::collect::FromIterator<I>>::from_iter
  17: hir_def::body::lower::ExprCollector::maybe_collect_expr
  18: hir_def::body::lower::ExprCollector::collect_stmt
  19: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  20: hir_def::body::lower::ExprCollector::collect_stmt
  21: hir_def::body::lower::ExprCollector::maybe_collect_expr
  22: hir_def::body::lower::ExprCollector::maybe_collect_expr
  23: hir_def::body::lower::ExprCollector::collect_stmt
  24: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  25: hir_def::body::lower::ExprCollector::collect_stmt
  26: hir_def::body::lower::ExprCollector::maybe_collect_expr
  27: hir_def::body::lower::ExprCollector::collect_pat
  28: hir_def::body::lower::ExprCollector::maybe_collect_expr
  29: hir_def::body::lower::ExprCollector::collect_stmt
  30: hir_def::body::lower::ExprCollector::maybe_collect_expr
  31: hir_def::body::lower::lower
  32: hir_def::body::Body::body_with_source_map_query
  33: salsa::runtime::Runtime::execute_query_implementation
  34: core::ptr::drop_in_place<salsa::derived::slot::Memo<hir_def::db::UnionDataWithDiagnosticsQuery>>
  35: salsa::derived::slot::Slot<Q,MP>::read
  36: <salsa::derived::DerivedStorage<Q,MP> as salsa::plumbing::QueryStorageOps<Q>>::try_fetch
  37: <DB as hir_def::db::DefDatabase>::body_with_source_map
  38: hir::source_analyzer::SourceAnalyzer::new_for_body_no_infer
  39: hir::semantics::SemanticsImpl::analyze_impl
  40: hir::semantics::SemanticsImpl::descend_into_macros_impl
  41: hir::semantics::SemanticsImpl::descend_node_into_attributes
  42: ide::inlay_hints::chaining::hints
  43: ide::inlay_hints::hints
  44: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  45: ide::inlay_hints::inlay_hints
  46: std::panicking::try
  47: rust_analyzer::handlers::request::handle_inlay_hints
  48: core::ops::function::FnOnce::call_once{{vtable.shim}}
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
[Error - 11:28:02 PM] Request textDocument/inlayHint failed.
  Message: request handler panicked: Fail to convert given literal Literal {
    text: "",
    span: 7,
}
  Code: -32603 

Thanks for helping in advance!

[lnicola]

Minimized:

fn main() {
    let line = (10, 20);
    println!("{}", line.1.);
}

[ViktorVoloshko]

Minimized:

fn main() {
    let line = (10, 20);
    println!("{}", line.1.);
}

So, this is bug with tuples in general? Got it.

[lnicola]

More like with format! and friends, but yes.

[felipelalli]

I'm having the same issue!

rust-analyzer: v0.4.1853 (pre-release)
VS Code: 1.86.2