или не та версия?
[[package]]
name = "tokio"
version = "0.1.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)",
"mio 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-executor 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-fs 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-io 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-reactor 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-tcp 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-threadpool 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-timer 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
"tokio-udp 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
]