Every `inet` column holds a single host address, so a type override in
the new per-crate `sqlx.toml` replaces the `as "col: IpAddr"` casts the
queries needed to avoid the default `IpNetwork` mapping. Both crates
using the query macros also pin `chrono` as the date/time crate.
This needs the `sqlx-toml` feature on `sqlx`. `sqlx-cli` needs it too,
as it refuses to run in a crate directory that contains a `sqlx.toml`
file otherwise. It is a default feature of `sqlx-cli`, so only the
`--no-default-features` install in the docs has to name it.
Quentin Gliech