MSRV: bump to 1.60

Concrete clients have higher MSRVs, but 1.60 can
build the core code and resolve all deps.

.github/workflows/ci-matrix.yml

@@ -82,7 +82,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.59.0 # MSRV
+          - 1.60.0 # MSRV
 
     steps:
       - uses: actions/checkout@v2

Cargo.toml

@@ -10,7 +10,7 @@ license = "Apache-2.0"
 name = "unleash-api-client"
 readme = "README.md"
 repository = "https://github.com/cognitedata/unleash-client-rust/"
-rust-version = "1.59"
+rust-version = "1.60"
 version = "0.10.3"
 
 [badges]
@@ -24,15 +24,15 @@ backtrace = ["anyhow/backtrace"]
 default = []
 # Enable the functional test suite
 functional = []
-reqwest-client = ["reqwest", "reqwest/default-tls"]
-reqwest-client-11 = ["reqwest-11", "reqwest-11/default-tls"]
+reqwest-client = ["dep:reqwest", "reqwest?/default-tls"]
+reqwest-client-11 = ["dep:reqwest-11", "reqwest-11?/default-tls"]
 # For users that don't want to depend on OpenSSL.
-reqwest-client-11-rustls = ["reqwest-11", "reqwest-11/rustls-tls"]
-reqwest-client-rustls = ["reqwest", "reqwest/rustls-tls"]
+reqwest-client-11-rustls = ["dep:reqwest-11", "reqwest-11?/rustls-tls"]
+reqwest-client-rustls = ["dep:reqwest", "reqwest?/rustls-tls"]
 # To error if an unsupported API feature is present
 strict = []
 # For use with --no-default-features
-surf-client = ["async-std", "surf"]
+surf-client = ["dep:async-std", "dep:surf"]
 
 [[bench]]
 harness = false
@@ -42,7 +42,7 @@ name = "is_enabled"
 bench = false
 name = "dump-features"
 path = "src/bin/dump-features.rs"
-required-features = ["async-std", "surf-client"]
+required-features = ["surf-client"]
 
 [dependencies]
 anyhow = "1.0.44"
@@ -71,21 +71,20 @@ version = "0.4.19"
 default-features = false
 features = ["json"]
 optional = true
-version = "0.12.4"
+version = "0.12"
 
 [dependencies.reqwest-11]
 default-features = false
 features = ["json"]
 optional = true
 package = "reqwest"
-version = "0.11.27"
+version = "0.11"
 
 [dependencies.serde]
 features = ["derive"]
 version = "1.0"
 
 [dev-dependencies]
-# async-std = "1.10.0"
 criterion = "0.3.5"     # Remember to update audit.toml
 futures = "0.3.17"
 maplit = "1.0.2"

README.md

@@ -70,7 +70,7 @@ enable_string_features | N/A | By default the Rust SDK requires you to define an
 
 ## Status
 
-Core Unleash API features work, with Rust 1.59 or above. The MSRV for this project is weakly enforced: when a hard dependency raises its version, so will the minimum version tested against, but if older rust versions work for a user, that is not prevented. `time` in particular is known to enforce a 6-month compiler age, so regular increases with the minimum version tested against are expected.
+Core Unleash API features work, with Rust 1.60 or above. The MSRV for this project is weakly enforced: when a hard dependency raises its version, so will the minimum version tested against, but if older rust versions work for a user, that is not prevented. `time` in particular is known to enforce a 6-month compiler age, so regular increases with the minimum version tested against are expected.
 
 Unimplemented Unleash specified features: