Exclude aws-sdk-sts from Cargo.toml, add it manually during MSRV check

Author: JamieTsai1024

.evergreen/compile-only.sh

@@ -9,6 +9,11 @@ source ./.evergreen/env.sh
 if [ "$RUST_VERSION" != "" ]; then
   rustup toolchain install $RUST_VERSION
   TOOLCHAIN="+${RUST_VERSION}"
+
+  # The MSRV resolver does not properly select an MSRV-compliant version
+  # for this transient dependency.
+  cargo add [email protected]
+
   CARGO_RESOLVER_INCOMPATIBLE_RUST_VERSIONS=fallback cargo +nightly -Zmsrv-policy generate-lockfile
 fi
 

Cargo.lock

@@ -41,7 +41,7 @@ dns-resolver = ["dep:hickory-resolver", "dep:hickory-proto"]
 cert-key-password = ["dep:pem", "dep:pkcs8"]
 
 # Enable support for MONGODB-AWS authentication.
-aws-auth = ["dep:reqwest", "aws-credential-types", "aws-types", "aws-config"]
+aws-auth = ["dep:reqwest", "aws-config", "aws-types", "aws-credential-types"]
 
 # Enable support for on-demand Azure KMS credentials.
 azure-kms = ["dep:reqwest"]
@@ -122,24 +122,19 @@ zstd = { version = "0.11.2", optional = true }
 macro_magic = "0.5.1"
 rustversion = "1.0.20"
 
-[dependencies.aws-credential-types]
-version = "1.2.4"
+[dependencies.aws-config]
+version = "1"
 optional = true
 default-features = false
+features = ["default-https-client", "rt-tokio"]
 
 [dependencies.aws-types]
 version = "1.3.7"
 optional = true
 default-features = false
 
-[dependencies.aws-config]
-version = "1"
-optional = true
-default-features = false
-features = ["default-https-client", "rt-tokio"]
-
-[dependencies.aws-sdk-sts]
-version = "=1.73"
+[dependencies.aws-credential-types]
+version = "1.2.4"
 optional = true
 default-features = false