Makes QueryResult::read lifetimes better

lib/src/sparql/model.rs

@@ -17,10 +17,7 @@ pub enum QueryResult<'a> {
 }
 
 impl<'a> QueryResult<'a> {
-    pub fn read(
-        reader: impl BufRead + 'static,
-        syntax: QueryResultSyntax,
-    ) -> Result<QueryResult<'static>> {
+    pub fn read(reader: impl BufRead + 'a, syntax: QueryResultSyntax) -> Result<Self> {
         match syntax {
             QueryResultSyntax::Xml => read_xml_results(reader),
         }

lib/src/sparql/xml_results.rs

@@ -107,7 +107,7 @@ pub fn write_xml_results<W: Write>(results: QueryResult<'_>, sink: W) -> Result<
     Ok(writer.into_inner())
 }
 
-pub fn read_xml_results(source: impl BufRead + 'static) -> Result<QueryResult<'static>> {
+pub fn read_xml_results<'a>(source: impl BufRead + 'a) -> Result<QueryResult<'a>> {
     enum State {
         Start,
         Sparql,