Disable LTO to fix armv7hl builds

disable-lto.patch

@@ -0,0 +1,10 @@
+--- coreos-installer-0.12.0/Cargo.toml.old	2021-12-17 18:10:11.278872432 -0500
++++ coreos-installer-0.12.0/Cargo.toml	2021-12-17 18:39:05.822741078 -0500
+@@ -38,7 +38,6 @@
+ opt-level = 3
+ 
+ [profile.release]
+-lto = true
+ debug = true
+ 
+ [lib]

rust-coreos-installer.spec

@@ -23,9 +23,12 @@ Source0:        https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{
 Source1:        https://github.com/coreos/%{crate}/releases/download/v%{version}/%{crate}-%{version}-vendor.tar.gz
 Source2:        https://github.com/coreos/coreos-installer-dracut/archive/%{dracutcommit}/coreos-installer-dracut-%{dracutshortcommit}.tar.gz
 
+# LTO causes OOM on Fedora armv7hl builders with Rust 1.57.0
+Patch1:         disable-lto.patch
+
 # rust-serde_with doesn't include the default "macros" feature.  Bundle
 # serde_with and its dependencies while we sort out this mess.
-Patch1:         bundle-serde_with.patch
+Patch2:         bundle-serde_with.patch
 BuildRequires:  rust-ident_case+default-devel
 Provides:       bundled(crate(darling)) = 0.13.0
 Provides:       bundled(crate(darling_core)) = 0.13.0
@@ -215,6 +218,7 @@ from the initramfs.
 * Fri Dec 17 2021 Benjamin Gilbert <bgilbert@redhat.com> - 0.12.0-1
 - New release
 - Temporarily bundle serde_with and its dependencies
+- Disable LTO to fix armv7hl builds
 
 * Wed Dec 15 2021 Sohan Kunkerkar <skunkerk@redhat.com> - 0.11.0-3
 - Remove conditional around sourcing the vendor tarball