fn to_virtual_manifest(
contents: String,
document: ImDocument<String>,
original_toml: TomlManifest,
normalized_toml: TomlManifest,
features: Features,
workspace_config: WorkspaceConfig,
source_id: SourceId,
manifest_file: &Path,
gctx: &GlobalContext,
warnings: &mut Vec<String>,
_errors: &mut Vec<String>,
) -> CargoResult<VirtualManifest>