Enum PackageCacheError 

#[non_exhaustive]
pub enum PackageCacheError {
    Cancelled,
    LayerError(Box<dyn Error + Send + Sync>),
    NoWritableLayers,
    UnsafeCacheKey(InvalidPathComponentError),
}

Errors specific to the PackageCache interface

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.

Cancelled

The operation was cancelled

LayerError(Box<dyn Error + Send + Sync>)

An error occurred in a cache layer

NoWritableLayers

There are no eligible writable layers to cache the package to.

UnsafeCacheKey(InvalidPathComponentError)

The cache key contains metadata that could lead to path traversal.

Trait Implementations

impl Debug for PackageCacheError

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

Formats the value using the given formatter.

impl Display for PackageCacheError

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

Formats the value using the given formatter.

impl Error for PackageCacheError

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<Cancelled> for PackageCacheError

fn from(_value: Cancelled) -> Self

Converts to this type from the input type.

impl From<InvalidPathComponentError> for PackageCacheError

fn from(source: InvalidPathComponentError) -> Self

Converts to this type from the input type.

impl From<PackageCacheLayerError> for PackageCacheError

fn from(err: PackageCacheLayerError) -> Self

Converts to this type from the input type.