What causes "failed to inspect exec: %w" in nektos/act?

Check the wrapped Docker error for why the exec inspection failed.

failed to inspect exec: %w

Error message

failed to inspect exec: %w

What it means

Error "failed to inspect exec: %w" thrown in nektos/act.

Source

Thrown at pkg/container/docker_run.go:609

inspectResp, err := cr.cli.ExecInspect(ctx, idResp.ID, client.ExecInspectOptions{})
if err != nil {
	return fmt.Errorf("failed to inspect exec: %w", err)
}

View on GitHub (pinned to 4f41128141)

Solutions

Check the wrapped Docker error for why the exec inspection failed.
Ensure the container and exec instance still exist when the inspection runs.

When it happens

Trigger: Thrown at pkg/container/docker_run.go:609 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of nektos/act@4f41128141 (2026-08-15). Data as JSON: /api/errors/d9a444835947240b. Report an issue: GitHub.