fix(rust): pin aws-sdk-s3 without relaxing eventstream pins

Keep the exact eventstream pins but move them to =0.61.4 so aws-runtime 1.9.4's eventstream requirement resolves, downgrade aws-sdk-s3 to 1.146.1, and echo the context ttl from S3Cache::get_ttl to match Python

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

litellm-rust/Cargo.lock

@@ -261,9 +261,9 @@ dependencies = [
 
 [[package]]
 name = "aws-sdk-s3"
-version = "1.148.0"
+version = "1.146.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a61c1db3987ab6c8740fb87f248864687d50549401115244a84f02c3047b2d5"
+checksum = "2cd651b4400d4011b8927b83a9552bf90ff11e6e5da0b9f0a7583247aceec971"
 dependencies = [
  "arc-swap",
  "aws-credential-types",
@@ -1380,7 +1380,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -2152,7 +2152,7 @@ dependencies = [
  "libc",
  "percent-encoding",
  "pin-project-lite",
- "socket2 0.6.5",
+ "socket2 0.5.10",
  "tokio",
  "tower-service",
  "tracing",
@@ -3638,7 +3638,7 @@ dependencies = [
  "quinn-udp",
  "rustc-hash",
  "rustls 0.23.42",
- "socket2 0.6.5",
+ "socket2 0.5.10",
  "thiserror 2.0.19",
  "tokio",
  "tracing",
@@ -3677,9 +3677,9 @@ dependencies = [
  "cfg_aliases",
  "libc",
  "once_cell",
- "socket2 0.6.5",
+ "socket2 0.5.10",
  "tracing",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -4104,7 +4104,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -4175,7 +4175,7 @@ dependencies = [
  "security-framework",
  "security-framework-sys",
  "webpki-root-certs",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -4699,10 +4699,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32497e9a4c7b38532efcdebeef879707aa9f794296a4f0244f6f69e9bc8574bd"
 dependencies = [
  "fastrand",
- "getrandom 0.4.3",
+ "getrandom 0.3.4",
  "once_cell",
  "rustix",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -5542,7 +5542,7 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]

litellm-rust/crates/cache-s3/Cargo.toml

@@ -8,7 +8,7 @@ repository.workspace = true
 [dependencies]
 litellm-cache.workspace = true
 litellm-auth-aws.workspace = true
-aws-sdk-s3 = { version = "1.141.0", default-features = false, features = ["rustls", "rt-tokio"] }
+aws-sdk-s3 = { version = "1.146.1", default-features = false, features = ["rustls", "rt-tokio"] }
 aws-credential-types = "1.3.0"
 aws-smithy-types = "1.6.0"
 aws-types = "1.6.0"

litellm-rust/crates/cache-s3/src/cache.rs

@@ -152,8 +152,8 @@ impl<C: CacheCodec> BaseCache for S3Cache<C> {
     type Value = C::Value;
     type Context = ExactCacheContext;
 
-    fn get_ttl(&self, _context: &Self::Context) -> Option<Duration> {
-        None
+    fn get_ttl(&self, context: &Self::Context) -> Option<Duration> {
+        context.ttl
     }
 
     fn set_cache(

litellm-rust/crates/cache-s3/tests/cache.rs

@@ -204,6 +204,12 @@ async fn unsupported_and_noop_capabilities_match_python() {
     cache.flush_cache().unwrap();
     cache.disconnect().await.unwrap();
     assert_eq!(cache.get_ttl(&ExactCacheContext::default()), None);
+    assert_eq!(
+        cache.get_ttl(&ExactCacheContext {
+            ttl: Some(Duration::from_secs(45)),
+        }),
+        Some(Duration::from_secs(45))
+    );
     assert!(server.received_requests().await.unwrap().is_empty());
 }
 

litellm-rust/crates/framer/Cargo.toml

@@ -11,7 +11,7 @@ aws = ["dep:aws-smithy-eventstream", "dep:aws-smithy-types"]
 sse = ["dep:sse-stream"]
 
 [dependencies]
-aws-smithy-eventstream = { version = "0.61.1", optional = true }
+aws-smithy-eventstream = { version = "=0.61.4", optional = true }
 aws-smithy-types = { version = "1.6.1", optional = true }
 bytes = "1"
 futures-util.workspace = true

litellm-rust/crates/llms/Cargo.toml

@@ -34,7 +34,7 @@ tokio = { workspace = true, features = ["sync"] }
 url.workspace = true
 
 [dev-dependencies]
-aws-smithy-eventstream = "0.61.1"
+aws-smithy-eventstream = "=0.61.4"
 aws-smithy-types = "1.6.1"
 rstest.workspace = true
 tokio.workspace = true