main nameinvalid port numberinvalid IPv4 addressinvalid IPv6 addressinvalid domain characterrelative URL without a baserelative URL with a cannot-be-a-base basea cannot-be-a-base URL doesn’t have a host to setURLs more than 4 GB are not supportedcapacity overflowassertion failed: url.serialization.len() == url.path_start as usize ||
    url.byte_at(url.path_start) == b'/'/assertion failed: url.byte_at(url.path_start) == b'/'unsafe precondition(s) violated: ptr::offset_from_unsigned requires `self >= origin`

This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.called `Result::unwrap()` on an `Err` valueis_nonoverlapping: `size_of::<T>() * count` overflows a usizeTrustedLen iterator's size hint is not exact: unsafe precondition(s) violated: Vec::set_len requires that new_len <= capacity()

This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.