remove dependency over std lib

Cargo.lock

@@ -45,12 +45,6 @@ dependencies = [
  "stacker",
 ]
 
-[[package]]
-name = "equivalent"
-version = "1.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
-
 [[package]]
 name = "foldhash"
 version = "0.1.3"
@@ -73,8 +67,6 @@ version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e087f84d4f86bf4b218b927129862374b72199ae7d8657835f1e89000eea4fb"
 dependencies = [
- "allocator-api2",
- "equivalent",
  "foldhash",
 ]
 

Cargo.toml

@@ -8,12 +8,12 @@ chumsky = { version = "0.9.3", default-features = false, features = [
     "ahash",
     "spill-stack",
 ] }
-hashbrown = { version = "0.15.0", default-features = true, features = [
+hashbrown = { version = "0.15.0", default-features = false, features = [
     # "core",
     # "alloc",
     # "inline-more",
     # "equivalent",
-    # "default-hasher",
+    "default-hasher",
 ] }
 # backtrace-on-stack-overflow = "0.3.0"