Rustup to rustc 1.69.0-nightly (2d14db321 2023-02-15)

Author: bjorn3

build_system/build_sysroot.rs

@@ -240,7 +240,8 @@ fn build_clif_sysroot_for_triple(
     rustflags
         .push_str(&format!(" --sysroot={}", RTSTARTUP_SYSROOT.to_path(dirs).to_str().unwrap()));
     if channel == "release" {
-        rustflags.push_str(" -Zmir-opt-level=3");
+        // FIXME re-enable DataflowConstProp once rust-lang/rust#108166 is fixed
+        rustflags.push_str(" -Zmir-opt-level=3 -Zmir-enable-passes=-DataflowConstProp");
     }
     compiler.rustflags += &rustflags;
     let mut build_cmd = STANDARD_LIBRARY.build(&compiler, dirs);

rust-toolchain

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2023-02-15"
+channel = "nightly-2023-02-16"
 components = ["rust-src", "rustc-dev", "llvm-tools-preview"]