Struct LifespanError 

pub struct LifespanError {
    pub message: String,
    pub source: Option<Box<dyn Error + Send + Sync>>,
}

Error during lifespan startup.

This error is returned when the lifespan function fails during the startup phase. It will abort the application startup, preventing the server from accepting connections.

Fields

message: String

Description of what went wrong.

source: Option<Box<dyn Error + Send + Sync>>

Optional underlying error source.

Implementations

impl LifespanError

pub fn new(message: impl Into<String>) -> Self

Creates a new lifespan error with a message.

pub fn with_source<E: Error + Send + Sync + 'static>( message: impl Into<String>, source: E, ) -> Self

Creates a lifespan error wrapping another error.

Trait Implementations

impl Debug for LifespanError

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

Formats the value using the given formatter.

impl Display for LifespanError

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

Formats the value using the given formatter.

impl Error for LifespanError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<LifespanError> for StartupHookError

fn from(err: LifespanError) -> Self

Converts to this type from the input type.