Starting download of /gnu/store/sx671p277ffc6mcnvsyzvs555syaw0bq-rust-rand-core-0.4.2.crate From https://crates.io/api/v1/crates/rand_core/0.4.2/download... following redirection to `https://static.crates.io/crates/rand_core/rand_core-0.4.2.crate'...  download 20KiB +nan.0TiB/s 00:00 [ ] 0.0%  download 20KiB 988KiB/s 00:00 [##################] 100.0%  download 20KiB 988KiB/s 00:00 [##################] 100.0%