CI is currently broken on the latest nightly compiler

[raoulstrackx]

CI is currently broken and spits out errors like:

 error: the item `FifoDescriptor` is imported redundantly
  --> ipc-queue/src/fifo.rs:17:24
   |
17 | use fortanix_sgx_abi::{FifoDescriptor, WithId};
   |                        ^^^^^^^^^^^^^^
18 |
19 | use super::*;
   |     -------- the item `FifoDescriptor` is already imported here
   |
note: the lint level is defined here
  --> ipc-queue/src/lib.rs:7:9
   |
7  | #![deny(warnings)]
   |         ^^^^^^^^
   = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`

error: the item `FifoDescriptor` is imported redundantly
 --> ipc-queue/src/interface_sync.rs:7:5
  |
7 | use fortanix_sgx_abi::FifoDescriptor;
  |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
8 |
9 | use super::*;
  |     -------- the item `FifoDescriptor` is already imported here