Update to Rust 1.89.0

Author: dtolnay

BUCK

@@ -25,6 +25,7 @@ rustc-main = { path = "rust/compiler/rustc", artifact = ["bin"], features = ["ll
 rustdoc-tool = { path = "rust/src/tools/rustdoc", artifact = ["bin"] }
 
 [patch.crates-io]
+compiler_builtins = { path = "rust/library/compiler-builtins/compiler-builtins" }
 rustc-std-workspace-alloc = { path = "rust/library/rustc-std-workspace-alloc" }
 rustc-std-workspace-core = { path = "rust/library/rustc-std-workspace-core" }
 rustc-std-workspace-std = { path = "rust/library/rustc-std-workspace-std" }

Cargo.lock

@@ -32,6 +32,6 @@ alias(
         "//constraints:library": None,
         "//constraints:compiler": "//:allocator-api2",
     }),
-    default_target_platform = "//platforms/stage1:library",
+    default_target_platform = "//platforms/stage2:library",
     visibility = ["//:"],
 )

Cargo.toml

@@ -23,7 +23,7 @@ def rust_bootstrap_binary(
     extra_rustc_flags = []
 
     if crate_root.startswith("rust/library/"):
-        default_target_platform = "//platforms/stage1:library-build-script"
+        default_target_platform = "//platforms/stage2:library-build-script"
     elif crate_root.startswith("rust/compiler/") or crate_root.startswith("rust/src/"):
         default_target_platform = "//platforms/stage1:compiler"
     else:
@@ -72,7 +72,7 @@ def rust_bootstrap_library(
     extra_srcs = []
 
     if crate_root.startswith("rust/library/"):
-        default_target_platform = "//platforms/stage1:library"
+        default_target_platform = "//platforms/stage2:library"
     elif crate_root.startswith("rust/compiler/") or crate_root.startswith("rust/src/"):
         default_target_platform = "//platforms/stage1:compiler"
         messages_ftl = glob(["rust/compiler/{}/messages.ftl".format(crate)])

allocator/BUCK

@@ -1,3 +1,5 @@
+extra_srcs = ["../libm/src/math/**/*.rs"]
+
 rustc_flags = [
     # Port of Cargo change: https://github.com/rust-lang/rust/pull/73136/files
     #

defs.bzl

@@ -0,0 +1,5 @@
+extra_srcs = ["../../library/proc_macro/**/*.rs"]
+
+# This is a compiler crate despite having source code located in the library
+# directory.
+target_compatible_with = ["//constraints:compiler"]

fixups/compiler_builtins/fixups.toml

@@ -1,7 +1,6 @@
 buildscript.run = true
 cargo_env = ["CARGO_MANIFEST_DIR"]
 extra_deps = [
-    "toolchains//rust:sysroot[test]",
     ":pulldown-cmark-0.11.3",
     ":rustc_abi-0.0.0",
     ":rustc_ast-0.0.0",

fixups/rustc_proc_macro/fixups.toml

@@ -14,8 +14,6 @@ execution_platforms(
     name = "execution",
     platforms = [
         ":host",
-        "//platforms/stage1:library",
-        "//platforms/stage1:library-build-script",
         "//platforms/stage1:compiler",
         "//platforms/stage1:compiler-build-script",
         "//platforms/stage2:library",

fixups/rustdoc/fixups.toml

@@ -1,27 +1,5 @@
 load("//platforms:defs.bzl", "platform")
 
-platform(
-    name = "library",
-    base = "//platforms:host",
-    constraint_values = [
-        "//constraints:build-script=false",
-        "//constraints:library",
-        "//constraints:opt-level=3",
-        "//constraints:stage1",
-    ],
-    visibility = ["PUBLIC"],
-)
-
-platform(
-    name = "library-build-script",
-    base = ":library",
-    constraint_values = [
-        "//constraints:build-script=true",
-        "//constraints:opt-level=0",
-    ],
-    visibility = ["PUBLIC"],
-)
-
 platform(
     name = "compiler",
     base = "//platforms:host",