Struct KernelUnavailable 

pub struct KernelUnavailable {
    pub diagnostic: String,
}

Marker error for “the test harness can’t find a kernel image to boot the VM against”. Wraps the actionable diagnostic that resolve_test_kernel emits when neither KTSTR_TEST_KERNEL nor any standard cache / sysroot location produced a bootable image.

Distinct from a generic anyhow::bail! so the #[ktstr_test] macro’s wrapper can downcast and emit a SKIP banner instead of panicking — the canonical “running under cargo nextest run instead of cargo ktstr test” symptom. Routes through [crate::test_support::is_kernel_unavailable] for the macro’s predicate; downcast directly when adding new SKIP arms.

Fields

diagnostic: String

Trait Implementations

impl Debug for KernelUnavailable

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

Formats the value using the given formatter.

impl Display for KernelUnavailable

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

Formats the value using the given formatter.

impl Error for KernelUnavailable

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.