Enum TracingInitError 

#[non_exhaustive]
pub enum TracingInitError {
    Filter(ParseError),
    Install(TryInitError),
}

Why TracingSetup::init could not start the logging.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Filter(ParseError)

The log filter, built from the base level, RUST_LOG and the extra directives, has a directive that does not parse.

Install(TryInitError)

A global tracing subscriber, or a log logger, is already installed.

Trait Implementations

impl Debug for TracingInitError

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

Formats the value using the given formatter.

impl Display for TracingInitError

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

Formats the value using the given formatter.

impl Error for TracingInitError

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<ParseError> for TracingInitError

fn from(source: ParseError) -> Self

Converts to this type from the input type.

impl From<TryInitError> for TracingInitError

fn from(source: TryInitError) -> Self

Converts to this type from the input type.