Re: [Libguestfs] [nbdkit PATCH] rust: prevent dead_code warning

On Fri, Oct 14, 2022 at 10:42:30PM +0200, Thomas Weißschuh wrote: > rustc 1.64.0 generates warnings for the mocked Server. > This leads to a failure of test.sh. > > ``` > warning: associated function `expect` is never used > --> tests/common/mod.rs:49:1 > | > 49 | / mock!{ > 50 | | pub Server {} > 51 | | impl Server for Server { > 52 | | fn cache(&self, count: u32, offset: u64) -> Result<()>; > ... | > 86 | | } > 87 | | } > | |_^ > | > = note: `#[warn(dead_code)]` on by default > ``` > --- > > Note: This also affects the maintenance branches. > > plugins/rust/tests/common/mod.rs | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/plugins/rust/tests/common/mod.rs b/plugins/rust/tests/common/mod.rs > index 61c30464..de26c89f 100644 > --- a/plugins/rust/tests/common/mod.rs > +++ b/plugins/rust/tests/common/mod.rs > @@ -48,6 +48,7 @@ lazy_static! { > > mock!{ > pub Server {} > + #[allow(dead_code)] > impl Server for Server { > fn cache(&self, count: u32, offset: u64) -> Result<()>; > fn can_cache(&self) -> Result<CacheFlags>; > > base-commit: 20c2dc98b6bbde2f92e63d500d5e6015184bb105 Yes this has been bugging me as well, and probably we should put this patch upstream. However I will note that Alan submitted an issue about the underlying issue: https://listman.redhat.com/archives/libguestfs/2022-September/030074.html https://github.com/asomers/mockall/issues/414 It's marked as fixed, but for some reason that didn't seem to fix the tests - I'm still seeing the unused 'expect' here, even after completely deleting the cargo cache.