fix (zebra-chain): make test and bench targets build using 2021 edition
The 2021 edition activates the v2 cargo resolver.
This broke implicit feature resolution,
but only when `zebra-chain`'s dev or bench targets were compiled by themselves.
@@ -81,11 +81,14 @@ proptest-derive = "0.3"
rand = "0.8"
rand_chacha = "0.3"
+tokio = "1.15.0"
+
zebra-test = { path = "../zebra-test/" }
[[bench]]
name = "block"
harness = false
+required-features = ["bench"]
[[bench]]
name = "redpallas"
