rust - Cargo run 忽略指定给 cargo build 的特性

Question

我编译了 Rust GTK examples这样:

$ cargo build --features gtk_3_10

当我尝试运行示例时，出现错误:

   $ cargo run --bin gtktest   
    Compiling gtk-rs-examples v0.0.1 (file:///home/me123/rust/gtk_examples)
    Finished dev [unoptimized + debuginfo] target(s) in 0.39 secs
     Running `target/debug/gtktest`
This example only work with GTK 3.10 and later
Did you forget to build with `--features gtk_3_10`?

如何解决？

Answer 1

调用cargo run时需要传递特征:

cargo run --bin gtktest --features gtk_3_10

您也可以在构建后直接运行可执行文件:

$ cargo build --bin gtktest --features gtk_3_10
$ ./target/debug/gtktest

您可以看出您的命令没有按照您的预期执行，因为输出显示您的代码正在重新编译:

Compiling gtk-rs-examples v0.0.1 (file:///home/me123/rust/gtk_examples)