these 4 derivations will be built:
  /nix/store/hkfnzsc42wrv1n7n2g2kx2w9gzqqdbrm-Cargo.toml.drv
  /nix/store/40gs402xz34i2wschadl9nil49gia6r9-source.drv
  /nix/store/1krvb92d0r4nylkvhblm7p431lsw6djj-iets-deps-riscv64-unknown-linux-gnu-0.2.0.drv
  /nix/store/202rvr46lsap64q7rrpmxz4mg8z3hj31-iets-riscv64-unknown-linux-gnu-0.2.0.drv
warning: ignoring the client-specified setting 'store', because it is a restricted setting and you are not a trusted user