Error while compiling url v1.2.3 for stest 0.6.10

[polyzen]

stest 0.6.10
rustc 1.40.0

cargo build --release --locked
...

   Compiling url v1.2.3
error[E0713]: borrow may still be in use when destructor runs
   --> /home/user/.cargo/registry/src/github.aaakk.us.kg-1ecc6299db9ec823/url-1.2.3/src/form_urlencoded.rs:246:40
    |
244 | impl<'a> Target for ::UrlQuery<'a> {
    |      -- lifetime `'a` defined here
245 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
246 |     fn finish(self) -> &'a mut ::Url { self.url }
    |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
    |                                        |
    |                                        returning this value requires that `*self.url` is borrowed for `'a`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0713`.
error: could not compile `url`.
warning: build failed, waiting for other jobs to finish...
error: build failed

I get the same error without --locked.

Was attempting to rebuild stest as it currently seems to hang after outputting Number of tests to run 1.

[opensourcegeek]

@polyzen I'll have a look, I've not tried to build it for a while.