tokio-postgres 0.7.8 `DataRowBody` doesn't implement `std::fmt::Debug`

[ldanilek]

i'm upgrading a project from tokio-postgres 0.7.0 to 0.7.8 (with features = ["with-serde_json-1"]), and i get this error on the new version:

error[E0277]: `DataRowBody` doesn't implement `std::fmt::Debug`
   --> /Users/lee/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-postgres-0.7.8/src/row.rs:202:5
    |
199 | #[derive(Debug)]
    |          ----- in this derive macro expansion
...
202 |     body: DataRowBody,
    |     ^^^^^^^^^^^^^^^^^ `DataRowBody` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug`

I would guess this is because tokio-postgres/Cargo.toml contains postgres-protocol = { version = "0.6.4" while the latest version of postgres-protocol is 0.6.5.

I resolved the problem by calling cargo generate-lockfile which updates the Cargo.lock file to use postgres-protocol at 0.6.5.