Enum BeginRunError 

pub enum BeginRunError {
    Timeout(String),
    Failed(String),
}

Why a provider could not do its work — preparing a run in TypeProvider::begin_run, or answering a question afterwards, which TypeProvider::failure reports in the same shape.

The two arms are the engine’s two exits: Timeout is RunError::AnalysisTimeout, which names timeouts.analysis, and Failed is RunError::Provider, which names the toolchain. Telling them apart matters because the remedies are different, and printing the wrong one is advice that cannot work.

Variants

Timeout(String)

The provider’s work outlived the analysis budget.

Failed(String)

The provider could not do its work at all.

Trait Implementations

impl Clone for BeginRunError

fn clone(&self) -> BeginRunError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BeginRunError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for BeginRunError

impl PartialEq for BeginRunError

fn eq(&self, other: &BeginRunError) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for BeginRunError