does gdc recognize @nogc?

[drug via D.gnu]

I download gdc from official gdc downloading page but it give me error 
compiling this code:
```
class Foo
{
     this(long timestamp) nothrow @nogc
     {
         ...
     }
}
```
the error message is
```
error: user defined attributes cannot appear as postfixes
```
Looks like gdc doesn't know what @nogc means and treats it as an user 
defined attribute.