Enum ProcLauncherError 

pub enum ProcLauncherError {
    Launch(Error),
    Terminate(String),
    Kill(String),
    Other(String),
}

Errors produced by proc launching / termination backends.

For now, this is intentionally lightweight:

• Launch preserves an io::Error source chain (useful immediately).
• Terminate / Kill carry a string for now, since we haven’t committed to a concrete error taxonomy (e.g. nix vs actor RPC vs container APIs).
• Other is a catch-all for plumbing / unexpected failures.

As additional launchers are introduced (e.g. actor-based spawning), we can refine this into more structured variants without changing the trait shape.

Variants

Launch(Error)

Failure while launching a proc (e.g. command spawn failure).

Terminate(String)

Failure while initiating graceful termination.

Kill(String)

Failure while initiating an immediate kill.

Other(String)

Miscellaneous launcher failure not captured by the other variants.

Useful for “shouldn’t happen” plumbing errors or backend-specific cases we haven’t modeled yet.

Trait Implementations

impl Debug for ProcLauncherError

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

Formats the value using the given formatter.

impl Display for ProcLauncherError

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

Formats the value using the given formatter.

impl Error for ProcLauncherError

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.