Enable mem_take feature in relevant crates

src/liballoc/lib.rs

@@ -112,6 +112,7 @@
 #![feature(maybe_uninit_extra, maybe_uninit_slice, maybe_uninit_array)]
 #![feature(alloc_layout_extra)]
 #![feature(try_trait)]
+#![feature(mem_take)]
 
 // Allow testing this library
 

src/libcore/lib.rs

@@ -126,6 +126,7 @@
 #![feature(adx_target_feature)]
 #![feature(maybe_uninit_slice, maybe_uninit_array)]
 #![feature(external_doc)]
+#![feature(mem_take)]
 
 #[prelude_import]
 #[allow(unused)]

src/libproc_macro/lib.rs

@@ -25,6 +25,7 @@
 #![feature(extern_types)]
 #![feature(in_band_lifetimes)]
 #![feature(optin_builtin_traits)]
+#![feature(mem_take)]
 #![feature(non_exhaustive)]
 #![feature(specialization)]
 

src/librustc/lib.rs

@@ -65,6 +65,7 @@
 #![feature(crate_visibility_modifier)]
 #![feature(proc_macro_hygiene)]
 #![feature(log_syntax)]
+#![feature(mem_take)]
 
 #![recursion_limit="512"]
 

src/librustc_codegen_llvm/lib.rs

@@ -21,6 +21,7 @@
 #![feature(link_args)]
 #![feature(static_nobundle)]
 #![feature(trusted_len)]
+#![feature(mem_take)]
 #![deny(rust_2018_idioms)]
 #![deny(internal)]
 #![deny(unused_lifetimes)]

src/librustc_codegen_ssa/lib.rs

@@ -10,6 +10,7 @@
 #![feature(in_band_lifetimes)]
 #![feature(nll)]
 #![feature(trusted_len)]
+#![feature(mem_take)]
 #![allow(unused_attributes)]
 #![allow(dead_code)]
 #![deny(rust_2018_idioms)]

src/librustc_mir/lib.rs

@@ -24,6 +24,7 @@ Rust MIR: a lowered representation of Rust. Also: an experiment!
 #![feature(slice_concat_ext)]
 #![feature(trusted_len)]
 #![feature(try_blocks)]
+#![feature(mem_take)]
 
 #![recursion_limit="256"]
 

src/librustc_resolve/lib.rs

@@ -4,6 +4,7 @@
 
 #![feature(crate_visibility_modifier)]
 #![feature(label_break_value)]
+#![feature(mem_take)]
 #![feature(nll)]
 #![feature(rustc_diagnostic_macros)]
 #![cfg_attr(bootstrap, feature(type_alias_enum_variants))]

src/librustc_typeck/lib.rs

@@ -69,6 +69,7 @@ This API is completely unstable and subject to change.
 #![feature(slice_patterns)]
 #![feature(never_type)]
 #![feature(inner_deref)]
+#![feature(mem_take)]
 
 #![recursion_limit="256"]
 

src/librustdoc/lib.rs

@@ -21,6 +21,7 @@
 #![feature(drain_filter)]
 #![feature(inner_deref)]
 #![feature(never_type)]
+#![feature(mem_take)]
 
 #![recursion_limit="256"]
 

src/libstd/lib.rs

@@ -272,6 +272,7 @@
 #![feature(libc)]
 #![feature(link_args)]
 #![feature(linkage)]
+#![feature(mem_take)]
 #![feature(needs_panic_runtime)]
 #![feature(never_type)]
 #![feature(nll)]

src/libsyntax/lib.rs

@@ -16,6 +16,7 @@
 #![feature(const_transmute)]
 #![feature(crate_visibility_modifier)]
 #![feature(label_break_value)]
+#![feature(mem_take)]
 #![feature(nll)]
 #![feature(rustc_attrs)]
 #![feature(rustc_diagnostic_macros)]

src/tools/compiletest/src/main.rs

@@ -1,4 +1,5 @@
 #![crate_name = "compiletest"]
+#![feature(mem_take)]
 #![feature(test)]
 #![feature(vec_remove_item)]
 #![deny(warnings, rust_2018_idioms)]