core/use weak dependencies + Rust 1.60.0 (libp2p#2286)

Author: maschad

CHANGELOG.md

@@ -43,8 +43,13 @@
 
 # `libp2p` facade crate
 
-# 0.45.0
+# 0.45.1
+- Semver bump Rust from `1.56.1` to `1.60.0` . See [PR 2646].
+- Added weak dependencies for features. See [PR 2646].
+
+[PR 2646]: https://github.com/libp2p/rust-libp2p/pull/2646
 
+# 0.45.0
 - Update individual crates.
     - Update to [`libp2p-plaintext` `v0.33.0`](transports/plaintext/CHANGELOG.md).
     - Update to [`libp2p-noise` `v0.36.0`](transports/noise/CHANGELOG.md).

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "libp2p"
 edition = "2021"
-rust-version = "1.56.1"
+rust-version = "1.60.0"
 description = "Peer-to-peer networking library"
 version = "0.45.0"
 authors = ["Parity Technologies <[email protected]>"]
@@ -36,22 +36,22 @@ default = [
     "yamux",
 ]
 autonat = ["libp2p-autonat"]
-dcutr = ["libp2p-dcutr", "libp2p-metrics/dcutr"]
+dcutr = ["libp2p-dcutr", "libp2p-metrics?/dcutr"]
 deflate = ["libp2p-deflate"]
 dns-async-std = ["libp2p-dns", "libp2p-dns/async-std"]
 dns-tokio = ["libp2p-dns", "libp2p-dns/tokio"]
 floodsub = ["libp2p-floodsub"]
-identify = ["libp2p-identify", "libp2p-metrics/identify"]
-kad = ["libp2p-kad", "libp2p-metrics/kad"]
-gossipsub = ["libp2p-gossipsub", "libp2p-metrics/gossipsub"]
+identify = ["dep:libp2p-identify", "libp2p-metrics?/identify"]
+kad = ["libp2p-kad", "libp2p-metrics?/kad"]
+gossipsub = ["libp2p-gossipsub", "libp2p-metrics?/gossipsub"]
 metrics = ["libp2p-metrics"]
 mdns = ["libp2p-mdns"]
 mplex = ["libp2p-mplex"]
 noise = ["libp2p-noise"]
-ping = ["libp2p-ping", "libp2p-metrics/ping"]
+ping = ["dep:libp2p-ping", "libp2p-metrics?/ping"]
 plaintext = ["libp2p-plaintext"]
 pnet = ["libp2p-pnet"]
-relay = ["libp2p-relay", "libp2p-metrics/relay"]
+relay = ["dep:libp2p-relay", "libp2p-metrics?/relay"]
 request-response = ["libp2p-request-response"]
 rendezvous = ["libp2p-rendezvous"]
 tcp-async-io = ["libp2p-tcp", "libp2p-tcp/async-io"]