Enum EngineError 

pub enum EngineError {
    Core(CoreError),
    Unschedulable(String),
    Panicked {
        beam: BeamId,
    },
    Git(GitError),
}

Something that stopped Alba from running the beams as asked.

Deliberately not how a failing beam is reported: a command that exits non-zero — or that could not be spawned at all — is an expected outcome of a run and lands in RunSummary::failed. An EngineError means the run could not be carried out at all, and is what the CLI turns into its exit code 2.

Variants

Core(CoreError)

The project could not answer a question the engine asked of it: today, only an unknown target beam. Carries the span and source file the CLI needs to point at the offending Beamfile. A run/env template that fails to render at schedule time is deliberately not one of these — it is the failure of the beam that declared it.

Unschedulable(String)

The run cannot be scheduled as requested: a beam using an executor Alba does not implement yet, or parameters that do not match what the target beam declares. Detected before any beam starts.

Panicked

A beam’s task panicked, which can only be a bug in the engine or in an Executor implementation. Reported rather than unwrapped, so one broken beam cannot take the whole run down silently.

Fields

beam: BeamId

Git(GitError)

Git could not answer the question an affected run asked it: git is missing, this is not a repository, the reference does not exist.

Trait Implementations

impl Debug for EngineError

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

Formats the value using the given formatter.

impl Display for EngineError

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

Formats the value using the given formatter.

impl Error for EngineError

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<CoreError> for EngineError

fn from(source: CoreError) -> Self

Converts to this type from the input type.

impl From<GitError> for EngineError

fn from(source: GitError) -> Self

Converts to this type from the input type.