Enum Error 

#[non_exhaustive]
pub enum Error {
    IO(Error),
    AlreadyInitialized,
    InvalidConfiguration(String),
    InvalidEnvironmentValue {
        variable: String,
        expected: &'static str,
    },
    ForeignGlobalSubscriber,
    ForeignGlobalLogger,
    InstallationIncomplete,
}

Errors returned by init / init_with.

Marked #[non_exhaustive] so future variants are not breaking changes.

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.

IO(Error)

I/O failure during subscriber setup (typically the journald socket).

AlreadyInitialized

This crate already installed the subscriber and idempotent was false.

InvalidConfiguration(String)

The requested options are not supported on the selected target.

InvalidEnvironmentValue

An environment variable contains an unsupported or malformed value.

Fields

variable: String

Name of the invalid environment variable.

expected: &'static str

Accepted grammar, without echoing the rejected value.

ForeignGlobalSubscriber

Another crate installed the process-global tracing subscriber.

ForeignGlobalLogger

Another crate installed the process-global log facade.

The tracing subscriber and any OTLP provider are already committed when this error is returned; only the log-to-tracing bridge is foreign.

InstallationIncomplete

A prior installation panicked after claiming the tracing subscriber.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.