Gio build problem

Cargo.toml

[package]
name = "rust-sandbox"
version = "0.1.0"
authors = ["Hubert Figuière <hub@figuiere.net>"]
edition = "2018"

[dependencies]
gio = { git = "https://github.com/gtk-rs/gio" }

gistfile1.txt

error[E0283]: type annotations required: cannot resolve `_: glib::object::IsA<gio::Cancellable>`
  --> src/main.rs:10:32
   |
10 |     if let Ok(fileinfo) = file.query_info("*", gio::FileQueryInfoFlags::NONE, None) {
   |                                ^^^^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0283`.
error: Could not compile `rust-sandbox`.

To learn more, run the command again with --verbose.

main.rs

extern crate gio;

use std::path::Path;
use gio::prelude::*;

fn main() {
    let path = Path::new("/tmp/foo");
    let file = gio::File::new_for_path(path);
    if let Ok(fileinfo) = file.query_info("*", gio::FileQueryInfoFlags::NONE, None) {

    }
}