diff -Naur a/patched-crates/below-common/Cargo.toml b/patched-crates/below-common/Cargo.toml
--- a/patched-crates/below-common/Cargo.toml	2021-11-11 10:54:23.798601187 -0800
+++ b/patched-crates/below-common/Cargo.toml	2021-11-11 10:55:02.722814393 -0800
@@ -10,7 +10,7 @@
 # See Cargo.toml.orig for the original contents.
 
 [package]
-edition = "2021"
+edition = "2018"
 name = "below-common"
 version = "0.4.1"
 authors = ["Daniel Xu <dlxu@fb.com>", "Facebook"]
diff -Naur a/patched-crates/below-common/src/dateutil.rs b/patched-crates/below-common/src/dateutil.rs
--- a/patched-crates/below-common/src/dateutil.rs	2021-11-11 10:54:23.798601187 -0800
+++ b/patched-crates/below-common/src/dateutil.rs	2021-11-11 10:55:02.723814398 -0800
@@ -302,7 +302,7 @@
             let mut default_format = String::new();
             let mut date_with_defaults = date.clone();
             let mut use_now = false;
-            for part in ["S", "M", "HI", "d", "mb", "Yy"] {
+            for part in ["S", "M", "HI", "d", "mb", "Yy"].iter() {
                 if part
                     .chars()
                     .any(|ch| naive_format.contains(&format!("%{}", ch)))
diff -Naur a/patched-crates/below-config/Cargo.toml b/patched-crates/below-config/Cargo.toml
--- a/patched-crates/below-config/Cargo.toml	2021-11-11 10:54:23.798601187 -0800
+++ b/patched-crates/below-config/Cargo.toml	2021-11-11 10:55:02.723814398 -0800
@@ -10,7 +10,7 @@
 # See Cargo.toml.orig for the original contents.
 
 [package]
-edition = "2021"
+edition = "2018"
 name = "below-config"
 version = "0.4.1"
 authors = ["Daniel Xu <dlxu@fb.com>", "Facebook"]
diff -Naur a/patched-crates/below_derive/Cargo.toml b/patched-crates/below_derive/Cargo.toml
--- a/patched-crates/below_derive/Cargo.toml	2021-11-11 10:54:23.802601209 -0800
+++ b/patched-crates/below_derive/Cargo.toml	2021-11-11 10:55:02.723814398 -0800
@@ -10,7 +10,7 @@
 # See Cargo.toml.orig for the original contents.
 
 [package]
-edition = "2021"
+edition = "2018"
 name = "below_derive"
 version = "0.4.1"
 authors = ["Daniel Xu <dlxu@fb.com>", "Facebook"]
diff -Naur a/patched-crates/below-dump/Cargo.toml b/patched-crates/below-dump/Cargo.toml
--- a/patched-crates/below-dump/Cargo.toml	2021-11-11 10:54:23.798601187 -0800
+++ b/patched-crates/below-dump/Cargo.toml	2021-11-11 10:55:02.723814398 -0800
@@ -10,7 +10,7 @@
 # See Cargo.toml.orig for the original contents.
 
 [package]
-edition = "2021"
+edition = "2018"
 name = "below-dump"
 version = "0.4.1"
 authors = ["Daniel Xu <dlxu@fb.com>", "Facebook"]
diff -Naur a/patched-crates/below-model/Cargo.toml b/patched-crates/below-model/Cargo.toml
--- a/patched-crates/below-model/Cargo.toml	2021-11-11 10:54:23.799601192 -0800
+++ b/patched-crates/below-model/Cargo.toml	2021-11-11 10:55:02.724814404 -0800
@@ -10,7 +10,7 @@
 # See Cargo.toml.orig for the original contents.
 
 [package]
-edition = "2021"
+edition = "2018"
 name = "below-model"
 version = "0.4.1"
 authors = ["Daniel Xu <dlxu@fb.com>", "Facebook"]
diff -Naur a/patched-crates/below-render/Cargo.toml b/patched-crates/below-render/Cargo.toml
--- a/patched-crates/below-render/Cargo.toml	2021-11-11 10:54:23.800601198 -0800
+++ b/patched-crates/below-render/Cargo.toml	2021-11-11 10:55:02.724814404 -0800
@@ -10,7 +10,7 @@
 # See Cargo.toml.orig for the original contents.
 
 [package]
-edition = "2021"
+edition = "2018"
 name = "below-render"
 version = "0.4.1"
 authors = ["Daniel Xu <dlxu@fb.com>", "Facebook"]
diff -Naur a/patched-crates/below-store/Cargo.toml b/patched-crates/below-store/Cargo.toml
--- a/patched-crates/below-store/Cargo.toml	2021-11-11 10:54:23.800601198 -0800
+++ b/patched-crates/below-store/Cargo.toml	2021-11-11 10:55:02.724814404 -0800
@@ -10,7 +10,7 @@
 # See Cargo.toml.orig for the original contents.
 
 [package]
-edition = "2021"
+edition = "2018"
 name = "below-store"
 version = "0.4.1"
 authors = ["Daniel Xu <dlxu@fb.com>", "Facebook"]
diff -Naur a/patched-crates/below-view/Cargo.toml b/patched-crates/below-view/Cargo.toml
--- a/patched-crates/below-view/Cargo.toml	2021-11-11 10:54:23.801601203 -0800
+++ b/patched-crates/below-view/Cargo.toml	2021-11-11 10:55:02.724814404 -0800
@@ -10,7 +10,7 @@
 # See Cargo.toml.orig for the original contents.
 
 [package]
-edition = "2021"
+edition = "2018"
 name = "below-view"
 version = "0.4.1"
 authors = ["Daniel Xu <dlxu@fb.com>", "Facebook"]
diff -Naur a/patched-crates/cgroupfs/Cargo.toml b/patched-crates/cgroupfs/Cargo.toml
--- a/patched-crates/cgroupfs/Cargo.toml	2021-11-11 10:54:23.807601236 -0800
+++ b/patched-crates/cgroupfs/Cargo.toml	2021-11-11 10:55:02.724814404 -0800
@@ -10,7 +10,7 @@
 # See Cargo.toml.orig for the original contents.
 
 [package]
-edition = "2021"
+edition = "2018"
 name = "cgroupfs"
 version = "0.4.1"
 authors = ["Daniel Xu <dlxu@fb.com>", "Facebook"]
diff -Naur a/patched-crates/fb_procfs/Cargo.toml b/patched-crates/fb_procfs/Cargo.toml
--- a/patched-crates/fb_procfs/Cargo.toml	2021-11-11 10:54:23.838601406 -0800
+++ b/patched-crates/fb_procfs/Cargo.toml	2021-11-11 10:55:02.724814404 -0800
@@ -10,7 +10,7 @@
 # See Cargo.toml.orig for the original contents.
 
 [package]
-edition = "2021"
+edition = "2018"
 name = "fb_procfs"
 version = "0.4.1"
 authors = ["Daniel Xu <dlxu@fb.com>", "Facebook"]
diff -Naur a/patched-crates/libbpf-cargo/Cargo.toml b/patched-crates/libbpf-cargo/Cargo.toml
--- a/patched-crates/libbpf-cargo/Cargo.toml	2021-11-11 10:54:23.848601461 -0800
+++ b/patched-crates/libbpf-cargo/Cargo.toml	2021-11-11 10:55:28.898957781 -0800
@@ -35,7 +35,7 @@
 version = "0.12"
 
 [dependencies.libbpf-sys]
-version = "0.5.0-2"
+version = "0.4.0-2"
 
 [dependencies.memmap2]
 version = "0.3"
diff -Naur a/patched-crates/libbpf-rs/Cargo.toml b/patched-crates/libbpf-rs/Cargo.toml
--- a/patched-crates/libbpf-rs/Cargo.toml	2021-11-11 10:54:23.856601505 -0800
+++ b/patched-crates/libbpf-rs/Cargo.toml	2021-11-11 10:55:48.192063468 -0800
@@ -24,7 +24,7 @@
 version = "1.3"
 
 [dependencies.libbpf-sys]
-version = "0.5.0-2"
+version = "0.4.0-2"
 
 [dependencies.nix]
 version = "0.22"
diff -Naur a/patched-crates/libbpf-rs/src/object.rs b/patched-crates/libbpf-rs/src/object.rs
--- a/patched-crates/libbpf-rs/src/object.rs	2021-11-11 10:54:23.857601510 -0800
+++ b/patched-crates/libbpf-rs/src/object.rs	2021-11-11 10:56:05.745159628 -0800
@@ -67,9 +67,6 @@
             pin_root_path: ptr::null(),
             attach_prog_fd: 0,
             kconfig: ptr::null(),
-            btf_custom_path: ptr::null(),
-            __bindgen_padding_0: <[u8; 6]>::default(),
-            __bindgen_padding_1: <[u8; 4]>::default(),
         }
     }