diff --git a/bindings/c/Cargo.toml b/bindings/c/Cargo.toml
index fbf6b1d0..79dad158 100644
--- a/bindings/c/Cargo.toml
+++ b/bindings/c/Cargo.toml
@@ -7,17 +7,17 @@ authors = ["Grandine <info@grandine.io>"]
 crate-type = ["staticlib", "cdylib"]
 
 [dependencies]
-runtime = { workspace = true, features = ["network-goerli", "network-mainnet", "network-sepolia", "network-shadow", "network-holesky", "embed"] }
+runtime = { workspace = true, features = ["network-goerli", "network-mainnet", "network-sepolia", "network-shadow", "network-holesky"] }
 directories = { workspace = true }
 grandine_version = { workspace = true }
-validator = { workspace = true, features = ["embed"] }
+validator = { workspace = true, features = [] }
 fork_choice_control = { workspace = true }
 fork_choice_store = { workspace = true }
-eth1_api = { workspace = true, features = ["embed"] }
-signer = { workspace = true, features = ["embed"] }
+eth1_api = { workspace = true, features = [] }
+signer = { workspace = true, features = [] }
 slashing_protection = { workspace = true }
-http_api = { workspace = true, features = ["embed"] }
-slasher = { workspace = true, features = ["embed"] }
+http_api = { workspace = true, features = [] }
+slasher = { workspace = true, features = [] }
 anyhow = { workspace = true }
 types = { workspace = true }
 thiserror = { workspace = true }
diff --git a/bindings/c/src/lib.rs b/bindings/c/src/lib.rs
index 94ed4bdc..a7565788 100644
--- a/bindings/c/src/lib.rs
+++ b/bindings/c/src/lib.rs
@@ -62,6 +62,8 @@ pub fn try_run(argc: u64, argv: *const *const c_char) -> Result<()> {
 
 #[no_mangle]
 pub extern "C" fn grandine_run(argc: u64, argv: *const *const c_char) -> u64 {
+    std::env::set_var("RUST_BACKTRACE", "1");
+
     // let argc = argc as usize;
 
     // // Convert the raw pointer `argv` to a Rust slice of pointers
diff --git a/eth1_api/src/eth1_api/http_api.rs b/eth1_api/src/eth1_api/http_api.rs
index b7e77db5..318bf397 100644
--- a/eth1_api/src/eth1_api/http_api.rs
+++ b/eth1_api/src/eth1_api/http_api.rs
@@ -496,12 +496,12 @@ impl Eth1Api {
 
                     match self.peek_next_endpoint().await {
                         Some(next_endpoint) => warn!(
-                            "Eth1 RPC endpoint {url} returned an error: {error}; \
+                            "Eth1 RPC endpoint {url} returned an error: {error:?}; \
                              switching to {}",
                             next_endpoint.url(),
                         ),
                         None => warn!(
-                            "last available Eth1 RPC endpoint {url} returned an error: {error}",
+                            "last available Eth1 RPC endpoint {url} returned an error: {error:?}",
                         ),
                     }