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-rw-r--r--compiler/rustc_mir/src/lib.rs4
1 files changed, 0 insertions, 4 deletions
diff --git a/compiler/rustc_mir/src/lib.rs b/compiler/rustc_mir/src/lib.rs
index 647c368d2bb..12a36976f1d 100644
--- a/compiler/rustc_mir/src/lib.rs
+++ b/compiler/rustc_mir/src/lib.rs
@@ -12,16 +12,13 @@ Rust MIR: a lowered representation of Rust.
 #![feature(bool_to_option)]
 #![feature(box_patterns)]
 #![feature(box_syntax)]
-#![feature(const_panic)]
 #![feature(crate_visibility_modifier)]
 #![feature(decl_macro)]
 #![feature(exact_size_is_empty)]
-#![feature(exhaustive_patterns)]
 #![feature(iter_zip)]
 #![feature(never_type)]
 #![feature(map_try_insert)]
 #![feature(min_specialization)]
-#![feature(slice_ptr_len)]
 #![feature(slice_ptr_get)]
 #![feature(trusted_len)]
 #![feature(try_blocks)]
@@ -31,7 +28,6 @@ Rust MIR: a lowered representation of Rust.
 #![feature(option_get_or_insert_default)]
 #![feature(once_cell)]
 #![feature(control_flow_enum)]
-#![feature(trusted_step)]
 #![recursion_limit = "256"]
 
 #[macro_use]