History of DirBackend::open 2 changes

In crates/oxy-server/src/lib.rs, lines 279–288 on f97d3556db5fec09ebd0c519f38c855eef859a7e49be0f41a477423d175fc3a9. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 279,288:crates/oxy-server/src/lib.rs.