diff --git a/.travis.yml b/.travis.yml
index 53abd7e..56d7ee9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,4 +38,5 @@ before_script:
   - (test -x $HOME/.cargo/bin/bootimage || cargo install bootimage)
 
 script:
-  - cd kernel && make build arch=$ARCH
+  - cd kernel && make build arch=$ARCH && cd ..
+  - cd user && make arch=$ARCH
diff --git a/user/Cargo.toml b/user/Cargo.toml
index 0c95325..42811de 100644
--- a/user/Cargo.toml
+++ b/user/Cargo.toml
@@ -2,6 +2,7 @@
 name = "ucore-user-programs"
 version = "0.1.0"
 authors = ["Runji Wang <wangrunji0408@163.com>"]
+edition = "2018"
 
 [dependencies]
 "ucore-ulib" = { path = "ucore-ulib" }
\ No newline at end of file
diff --git a/user/Makefile b/user/Makefile
index 185ca0f..fccacbb 100644
--- a/user/Makefile
+++ b/user/Makefile
@@ -1,4 +1,4 @@
-# arch = {riscv32, x86_64}
+# arch = {riscv32, x86_64, aarch64}
 arch := riscv32
 
 all:
diff --git a/user/ucore-ulib/Cargo.toml b/user/ucore-ulib/Cargo.toml
index 186517c..27915b1 100644
--- a/user/ucore-ulib/Cargo.toml
+++ b/user/ucore-ulib/Cargo.toml
@@ -2,5 +2,6 @@
 name = "ucore-ulib"
 version = "0.1.0"
 authors = ["WangRunji <wangrunji0408@163.com>"]
+edition = "2018"
 
 [dependencies]
diff --git a/user/ucore-ulib/src/lang_items.rs b/user/ucore-ulib/src/lang_items.rs
index 89e5334..06b4511 100644
--- a/user/ucore-ulib/src/lang_items.rs
+++ b/user/ucore-ulib/src/lang_items.rs
@@ -1,4 +1,4 @@
-use syscall::sys_exit;
+use crate::syscall::sys_exit;
 use core::alloc::Layout;
 use core::panic::PanicInfo;
 
@@ -17,7 +17,7 @@ pub extern fn _start(_argc: isize, _argv: *const *const u8) -> ! {
 #[lang = "eh_personality"]
 fn eh_personality() {}
 
-#[panic_implementation]
+#[panic_handler]
 fn panic(info: &PanicInfo) -> ! {
     let location = info.location().unwrap();
     let message = info.message().unwrap();
diff --git a/user/ucore-ulib/src/lib.rs b/user/ucore-ulib/src/lib.rs
index fb4cf19..4908eb5 100644
--- a/user/ucore-ulib/src/lib.rs
+++ b/user/ucore-ulib/src/lib.rs
@@ -1,7 +1,6 @@
 #![no_std]
 #![feature(asm)]
 #![feature(lang_items)]
-#![feature(panic_implementation)]
 #![feature(panic_info_message)]
 #![feature(linkage)]
 #![feature(compiler_builtins_lib)]