diff --git a/kernel/src/holeybytes/ecah.rs b/kernel/src/holeybytes/ecah.rs
index b1561f96e..2a4d2e1a4 100644
--- a/kernel/src/holeybytes/ecah.rs
+++ b/kernel/src/holeybytes/ecah.rs
@@ -1,7 +1,5 @@
 //! Environment call handling routines
 
-use log::log;
-
 use {alloc::boxed::Box, core::cell::LazyCell, hbvm::mem::Address};
 
 use crate::{
@@ -244,13 +242,16 @@ pub fn handler(vm: &mut Vm, pid: &usize) {
                 vm.registers[3] = x
             }
         }
-        6 => { // Wait till interrupt
+        6 => {
+            // Wait till interrupt
             use crate::kmain::EXECUTOR;
             let interrupt_type = vm.registers[3].cast::<u8>();
             info!("Interrupt subscribled: {}", interrupt_type);
-            unsafe{
+            unsafe {
                 EXECUTOR.pause(pid.clone());
-                LazyCell::<Executor>::get_mut(&mut EXECUTOR).unwrap().interrupt_subscribe(pid.clone(), interrupt_type);
+                LazyCell::<Executor>::get_mut(&mut EXECUTOR)
+                    .unwrap()
+                    .interrupt_subscribe(pid.clone(), interrupt_type);
             }
         }
         _ => {
diff --git a/kernel/src/ktest.rs b/kernel/src/ktest.rs
index 43a2a11a3..bd5ec7f39 100644
--- a/kernel/src/ktest.rs
+++ b/kernel/src/ktest.rs
@@ -16,13 +16,13 @@ pub fn test_main() {
     unsafe {
         let mut current_test = &__ktest_start as *const fn();
         let mut current = 1;
-        let test_end = &__ktest_end as *const fn();        
+        let test_end = &__ktest_end as *const fn();
 
         while current_test < test_end {
             let test_fn = *current_test;
 
             debug!("Running test {}", current);
-            
+
             test_fn();
             debug!("Test {} passed", current);
 
@@ -35,4 +35,4 @@ pub fn test_main() {
 #[ktest]
 pub fn trivial_assertion() {
     assert_eq!(1, 1);
-}
\ No newline at end of file
+}
diff --git a/kernel/src/lib.rs b/kernel/src/lib.rs
index cf68a83d3..3f2be1166 100644
--- a/kernel/src/lib.rs
+++ b/kernel/src/lib.rs
@@ -35,9 +35,10 @@ mod task;
 mod utils;
 
 // #[cfg(feature = "tests")]
+#[allow(improper_ctypes, non_upper_case_globals)]
 mod ktest;
 
-use {alloc::string::ToString, versioning::Version};
+use versioning::Version;
 
 /// Kernel's version
 pub const VERSION: Version = Version {
@@ -49,6 +50,7 @@ pub const VERSION: Version = Version {
 #[panic_handler]
 #[cfg(target_os = "none")]
 fn panic(info: &core::panic::PanicInfo) -> ! {
+    use alloc::string::ToString;
     arch::register_dump();
 
     if let Some(loc) = info.location() {
diff --git a/sysdata/programs/timer_test/src/main.hb b/sysdata/programs/timer_test/src/main.hb
index b2142eac5..a491de4da 100644
--- a/sysdata/programs/timer_test/src/main.hb
+++ b/sysdata/programs/timer_test/src/main.hb
@@ -1,7 +1,7 @@
 sleep := @use("../../../libraries/stn/src/sleep.hb")
 log := @use("../../../libraries/stn/src/log.hb")
 
-main := fn(): int {
+main := fn(): void {
 	log.info("BEFORE\0")
 	sleep.sleep_until_interrupt(32)
 	log.info("AFTER\0")