rust: updated to 1.72.1

What's in 1.72.1
1.72.1 resolves a few regressions introduced in 1.72.0:

Partially revert codegen change, improving codegen
rustdoc: Fix self ty params in objects with lifetimes
Fix regression in compile times
Resolve some ICEs in the compiler

Author: Adam Ciarciński

rust/Makefile

@@ -1,6 +1,6 @@
 # $NetBSD: Makefile,v 1.284 2023/06/19 14:46:47 bsiegert Exp $
 
-DISTNAME=	rustc-1.72.0-src
+DISTNAME=	rustc-1.72.1-src
 PKGNAME=	${DISTNAME:S/rustc/rust/:S/-src//}
 CATEGORIES=	lang
 MASTER_SITES=	https://static.rust-lang.org/dist/

rust/distinfo

@@ -105,9 +105,9 @@ Size (rust-std-1.71.1-x86_64-unknown-linux-gnu.tar.gz) = 45109587 bytes
 BLAKE2s (rust-std-1.71.1-x86_64-unknown-netbsd.tar.xz) = 9404f67a7fd8c69138afbc1e96dcb607358b2491a6f1e729f92046c1c7408e84
 SHA512 (rust-std-1.71.1-x86_64-unknown-netbsd.tar.xz) = f83aa6fec343aae1f1a66df07be137a0cea90fd1784fe05155c25fff5a7f24d1f743ccdf77d9925ac2222d3e7681c18fde807f0161a0348a72452257dbc64cca
 Size (rust-std-1.71.1-x86_64-unknown-netbsd.tar.xz) = 24557152 bytes
-BLAKE2s (rustc-1.72.0-src.tar.gz) = c485fb310ec4c8c694069101058a12abbcce61c46249bbeb329b6bb0f9dba1c0
-SHA512 (rustc-1.72.0-src.tar.gz) = 8c134533229ea9ccf1226b021b7c8c531fba1e43609fb549b8f8e4c2d3eacdbe521d1b1c659abdc17f2711eb44303d0820b08546089e3a23fe39ce84265cf648
-Size (rustc-1.72.0-src.tar.gz) = 271796310 bytes
+BLAKE2s (rustc-1.72.1-src.tar.gz) = 1ab26bbaad7dfa052f6dcad98e135f2fa11dd48fd7482c8e724648820add72fa
+SHA512 (rustc-1.72.1-src.tar.gz) = acb5300fbfa3e21affd5f279264117bdc61c14ea2833950a4f3c1b22629a0150305dd870cfa61eeb4c25838dc8a2c7ab35984d73a12107098a6951b103aeda41
+Size (rustc-1.72.1-src.tar.gz) = 271788371 bytes
 SHA1 (patch-compiler_rustc__codegen__ssa_src_back_linker.rs) = 62819cf6db7d2e3e77d433fe883046c28fc20d91
 SHA1 (patch-compiler_rustc__llvm_build.rs) = 5d0478dc06243c74aec5dcd516e13521269b1ade
 SHA1 (patch-compiler_rustc__target_src_spec_i586__unknown__netbsd.rs) = 866d01e7c1f3d8dd7d26f2fdc4360df273ed401f