3 files changed, 3 insertions, 21 deletions

diff --git a/crates/profile/Cargo.toml b/crates/profile/Cargo.toml
index c5dfdff32..9c7ce26be 100644
--- a/crates/profile/Cargo.toml
+++ b/crates/profile/Cargo.toml
@@ -13,9 +13,7 @@ doctest = false
 once_cell = "1.3.1"
 cfg-if = "1"
 libc = "0.2.73"
-backtrace = { version = "0.3.44", optional = true }
-
-arena = { path = "../arena", version = "0.0.0" }
+la-arena = { version = "0.2.0", path = "../../lib/arena" }
 
 [target.'cfg(target_os = "linux")'.dependencies]
 perf-event = "0.4"
@@ -24,5 +22,4 @@ perf-event = "0.4"
 cpu_profiler = []
 
 # Uncomment to enable for the whole crate graph
-# default = [ "backtrace" ]
 # default = [ "cpu_profiler" ]
diff --git a/crates/profile/src/lib.rs b/crates/profile/src/lib.rs
index ab19271c7..aa6ccc36c 100644
--- a/crates/profile/src/lib.rs
+++ b/crates/profile/src/lib.rs
@@ -15,21 +15,6 @@ pub use crate::{
     stop_watch::{StopWatch, StopWatchSpan},
 };
 
-/// Prints backtrace to stderr, useful for debugging.
-#[cfg(feature = "backtrace")]
-pub fn print_backtrace() {
-    let bt = backtrace::Backtrace::new();
-    eprintln!("{:?}", bt);
-}
-#[cfg(not(feature = "backtrace"))]
-pub fn print_backtrace() {
-    eprintln!(
-        r#"enable the backtrace feature:
-    profile = {{ path = "../profile", features = [ "backtrace"] }}
-"#
-    );
-}
-
 thread_local!(static IN_SCOPE: RefCell<bool> = RefCell::new(false));
 
 /// Allows to check if the current code is withing some dynamic scope, can be
diff --git a/crates/profile/src/tree.rs b/crates/profile/src/tree.rs
index 3fac1f36c..62f0c30b5 100644
--- a/crates/profile/src/tree.rs
+++ b/crates/profile/src/tree.rs
@@ -1,7 +1,7 @@
 //! A simple tree implementation which tries to not allocate all over the place.
 use std::ops;
 
-use arena::Arena;
+use la_arena::Arena;
 
 #[derive(Default)]
 pub(crate) struct Tree<T> {
@@ -9,7 +9,7 @@ pub(crate) struct Tree<T> {
     current_path: Vec<(Idx<T>, Option<Idx<T>>)>,
 }
 
-pub(crate) type Idx<T> = arena::Idx<Node<T>>;
+pub(crate) type Idx<T> = la_arena::Idx<Node<T>>;
 
 impl<T> Tree<T> {
     pub(crate) fn start(&mut self)