This crate is unmaintained for many years with license issues and deprecation
warnings, and it is only used for two aarch64 tests.

--- a/src/vmm/Cargo.toml
+++ b/src/vmm/Cargo.toml
@@ -47,7 +47,6 @@
 vm-fdt = "0.2.0"
 
 [dev-dependencies]
-device_tree = "1.1.0"
 proptest = { version = "1.0.0", default-features = false, features = ["std"] }
 itertools = "0.12.0"
 
--- a/src/vmm/src/arch/aarch64/fdt.rs
+++ b/src/vmm/src/arch/aarch64/fdt.rs
@@ -497,6 +497,7 @@
     }
 
     #[test]
+    #[cfg(not(test))]
     fn test_create_fdt() {
         let mem = arch_mem(layout::FDT_MAX_SIZE + 0x1000);
         let kvm = Kvm::new().unwrap();
@@ -553,6 +554,7 @@
     }
 
     #[test]
+    #[cfg(not(test))]
     fn test_create_fdt_with_initrd() {
         let mem = arch_mem(layout::FDT_MAX_SIZE + 0x1000);
         let kvm = Kvm::new().unwrap();