diff --git a/eden/mononoke/land_service/src/main.rs b/eden/mononoke/land_service/src/main.rs
index de06cb563f9c0..aa2e00873203e 100644
--- a/eden/mononoke/land_service/src/main.rs
+++ b/eden/mononoke/land_service/src/main.rs
@@ -5,8 +5,6 @@
  * GNU General Public License version 2.
  */
 
-#![feature(backtrace)]
-
 use std::fs::File;
 use std::io::Write;
 use std::sync::atomic::AtomicBool;
diff --git a/eden/mononoke/megarepo_api/megarepo_config/src/lib.rs b/eden/mononoke/megarepo_api/megarepo_config/src/lib.rs
index 1a9da6f6596cb..e2da2b1828227 100644
--- a/eden/mononoke/megarepo_api/megarepo_config/src/lib.rs
+++ b/eden/mononoke/megarepo_api/megarepo_config/src/lib.rs
@@ -5,7 +5,6 @@
  * GNU General Public License version 2.
  */
 
-#![feature(backtrace)]
 #![cfg_attr(not(fbcode_build), allow(unused_crate_dependencies))]
 
 use std::path::Path;
diff --git a/eden/mononoke/megarepo_api/megarepo_error/src/lib.rs b/eden/mononoke/megarepo_api/megarepo_error/src/lib.rs
index 9941dd4276e19..3e894cc64ff3b 100644
--- a/eden/mononoke/megarepo_api/megarepo_error/src/lib.rs
+++ b/eden/mononoke/megarepo_api/megarepo_error/src/lib.rs
@@ -5,7 +5,6 @@
  * GNU General Public License version 2.
  */
 
-#![feature(backtrace)]
 #![feature(error_generic_member_access)]
 #![feature(provide_any)]
 
diff --git a/eden/mononoke/mononoke_api/src/errors.rs b/eden/mononoke/mononoke_api/src/errors.rs
index 1c64c888911da..a3d01b9e9c91c 100644
--- a/eden/mononoke/mononoke_api/src/errors.rs
+++ b/eden/mononoke/mononoke_api/src/errors.rs
@@ -6,7 +6,6 @@
  */
 
 use std::any::Demand;
-use std::any::Provider;
 use std::backtrace::Backtrace;
 use std::convert::Infallible;
 use std::error::Error as StdError;
@@ -90,23 +89,6 @@ pub enum MononokeError {
     InternalError(#[source] InternalError),
 }
 
-impl Provider for MononokeError {
-    fn provide<'a>(&'a self, demand: &mut Demand<'a>) {
-        match self {
-            Self::InvalidRequest(..)
-            | Self::MergeConflicts { .. }
-            | Self::PushrebaseConflicts(..)
-            | Self::ServicePermissionDenied { .. }
-            | Self::HookFailure(..)
-            | Self::NotAvailable(..)
-            | Self::AuthorizationError(..) => {}
-            Self::InternalError(error) => {
-                demand.provide_ref::<Backtrace>(error.backtrace());
-            }
-        }
-    }
-}
-
 impl From<Error> for MononokeError {
     fn from(e: Error) -> Self {
         MononokeError::InternalError(InternalError(Arc::new(e)))
diff --git a/eden/mononoke/mononoke_api/src/lib.rs b/eden/mononoke/mononoke_api/src/lib.rs
index 1bb9f428bba78..0ef2cc79faa1b 100644
--- a/eden/mononoke/mononoke_api/src/lib.rs
+++ b/eden/mononoke/mononoke_api/src/lib.rs
@@ -5,7 +5,6 @@
  * GNU General Public License version 2.
  */
 
-#![feature(backtrace)]
 #![feature(error_generic_member_access)]
 #![feature(provide_any)]
 
diff --git a/eden/mononoke/reachabilityindex/src/lib.rs b/eden/mononoke/reachabilityindex/src/lib.rs
index ff02b7cda7310..e91e3a265ff43 100644
--- a/eden/mononoke/reachabilityindex/src/lib.rs
+++ b/eden/mononoke/reachabilityindex/src/lib.rs
@@ -5,7 +5,6 @@
  * GNU General Public License version 2.
  */
 
-#![feature(backtrace)]
 #![feature(error_generic_member_access)]
 #![feature(provide_any)]
 
diff --git a/eden/mononoke/scs_server/src/main.rs b/eden/mononoke/scs_server/src/main.rs
index 6f2009dafe8d9..d77fd9a74c8e7 100644
--- a/eden/mononoke/scs_server/src/main.rs
+++ b/eden/mononoke/scs_server/src/main.rs
@@ -5,7 +5,6 @@
  * GNU General Public License version 2.
  */
 
-#![feature(backtrace)]
 #![type_length_limit = "2097152"]
 
 use std::fs::File;