Starting download of /gnu/store/yxxr01lq12knl78mgg9pzxv26bnvhfcg-rust-futures-core-preview-0.3.0-alpha.19.crate From https://crates.io/api/v1/crates/futures-core-preview/0.3.0-alpha.19/download... following redirection to `https://static.crates.io/crates/futures-core-preview/futures-core-preview-0.3.0-alpha.19.crate'...  download 16KiB 0B/s 00:00 [ ] 0.0%  download 16KiB 5.6MiB/s 00:00 [##################] 100.0%  download 16KiB 5.0MiB/s 00:00 [##################] 100.0%