diff --git a/ui/single/locals-cfg.stderr b/ui/single/locals-cfg.stderr
index e572a418a1..7637159625 100644
--- a/ui/single/locals-cfg.stderr
+++ b/ui/single/locals-cfg.stderr
@@ -28,10 +28,14 @@ error[E0425]: cannot find value `FOO` in this scope
 44 |         FOO;
    |         ^^^ not found in this scope
 
-error: duplicate lang item in crate `panic_semihosting`: `panic_impl`.
-  |
-  = note: first defined in crate `std` (which `$CRATE` depends on)
-
 error: duplicate lang item in crate `panic_halt`: `panic_impl`.
   |
-  = note: first defined in crate `panic_semihosting`.
+  = note: the lang item is first defined in crate `std` (which `$CRATE` depends on)
+  = note: first definition in `std` loaded from /usr/share/rust/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-cf0f33af3a901778.rlib
+  = note: second definition in `panic_halt` loaded from $DIR/target/tests/target/x86_64-unknown-linux-gnu/debug/deps/libpanic_halt-ba6f0ab3439cbc7e.rmeta
+
+error: duplicate lang item in crate `panic_semihosting`: `panic_impl`.
+  |
+  = note: the lang item is first defined in crate `panic_halt`.
+  = note: first definition in `panic_halt` loaded from $DIR/target/tests/target/x86_64-unknown-linux-gnu/debug/deps/libpanic_halt-ba6f0ab3439cbc7e.rmeta
+  = note: second definition in `panic_semihosting` loaded from $DIR/target/tests/target/x86_64-unknown-linux-gnu/debug/deps/libpanic_semihosting-805015f4a2d05965.rmeta
diff --git a/ui/single/task-priority-too-high.rs b/ui/single/task-priority-too-high.rs
index c01d685b39..fbafa4d21c 100644
--- a/ui/single/task-priority-too-high.rs
+++ b/ui/single/task-priority-too-high.rs
@@ -1,7 +1,5 @@
 #![no_main]
 
-use rtic::app;
-
 #[rtic::app(device = lm3s6965)]
 mod app {
     #[init]
diff --git a/ui/single/task-priority-too-high.stderr b/ui/single/task-priority-too-high.stderr
index 5854ae5f5b..e84ddd3cd4 100644
--- a/ui/single/task-priority-too-high.stderr
+++ b/ui/single/task-priority-too-high.stderr
@@ -1,13 +1,7 @@
-warning: unused import: `rtic::app`
- --> $DIR/task-priority-too-high.rs:3:5
-  |
-3 | use rtic::app;
-  |     ^^^^^^^^^
-  |
-  = note: `#[warn(unused_imports)]` on by default
-
 error[E0080]: evaluation of constant value failed
- --> $DIR/task-priority-too-high.rs:5:1
+ --> $DIR/task-priority-too-high.rs:3:1
   |
-5 | #[rtic::app(device = lm3s6965)]
-  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ attempt to subtract with overflow
+3 | #[rtic::app(device = lm3s6965)]
+  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ attempt to compute `8_usize - 9_usize` which would overflow
+  |
+  = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)