Follow-up to d199a4c7b4c4d3320ed59e96a382f4c577630360. * gnu/packages/rust.scm (rust-1.28)[inputs]: Use llvm-6 instead of llvm.
Follow-up to d199a4c7b4c4d3320ed59e96a382f4c577630360. * gnu/packages/rust.scm (rust-1.28)[inputs]: Use llvm-6 instead of llvm.