diff --git a/examples/arduino-diecimila/.cargo/config.toml b/examples/arduino-diecimila/.cargo/config.toml
index 1b37bfb826..d9b3b46375 100644
--- a/examples/arduino-diecimila/.cargo/config.toml
+++ b/examples/arduino-diecimila/.cargo/config.toml
@@ -6,3 +6,4 @@ runner = "ravedude diecimila"
 
 [unstable]
 build-std = ["core"]
+build-std-features = ["compiler-builtins-mangled-names"]
diff --git a/examples/arduino-leonardo/.cargo/config.toml b/examples/arduino-leonardo/.cargo/config.toml
index e11a01e9e3..4f8c12962a 100644
--- a/examples/arduino-leonardo/.cargo/config.toml
+++ b/examples/arduino-leonardo/.cargo/config.toml
@@ -6,3 +6,4 @@ runner = "ravedude leonardo"
 
 [unstable]
 build-std = ["core"]
+build-std-features = ["compiler-builtins-mangled-names"]
diff --git a/examples/arduino-mega2560/.cargo/config.toml b/examples/arduino-mega2560/.cargo/config.toml
index b5ee8592cf..e147a0a17b 100644
--- a/examples/arduino-mega2560/.cargo/config.toml
+++ b/examples/arduino-mega2560/.cargo/config.toml
@@ -6,3 +6,4 @@ runner = "ravedude -cb 57600 mega2560"
 
 [unstable]
 build-std = ["core"]
+build-std-features = ["compiler-builtins-mangled-names"]
diff --git a/examples/arduino-nano/.cargo/config.toml b/examples/arduino-nano/.cargo/config.toml
index 244bf7ba63..d675cf5271 100644
--- a/examples/arduino-nano/.cargo/config.toml
+++ b/examples/arduino-nano/.cargo/config.toml
@@ -6,3 +6,4 @@ runner = "ravedude nano -cb 57600"
 
 [unstable]
 build-std = ["core"]
+build-std-features = ["compiler-builtins-mangled-names"]
diff --git a/examples/arduino-uno/.cargo/config.toml b/examples/arduino-uno/.cargo/config.toml
index e7a5f7c442..b6500e6df6 100644
--- a/examples/arduino-uno/.cargo/config.toml
+++ b/examples/arduino-uno/.cargo/config.toml
@@ -6,3 +6,4 @@ runner = "ravedude uno -cb 57600"
 
 [unstable]
 build-std = ["core"]
+build-std-features = ["compiler-builtins-mangled-names"]
diff --git a/examples/nano168/.cargo/config.toml b/examples/nano168/.cargo/config.toml
index f7452fb156..78da1e1b7d 100644
--- a/examples/nano168/.cargo/config.toml
+++ b/examples/nano168/.cargo/config.toml
@@ -6,3 +6,4 @@ runner = "ravedude nano168 -cb 57600"
 
 [unstable]
 build-std = ["core"]
+build-std-features = ["compiler-builtins-mangled-names"]
diff --git a/examples/sparkfun-promicro/.cargo/config.toml b/examples/sparkfun-promicro/.cargo/config.toml
index 4c5d2b5453..fc90c42e62 100644
--- a/examples/sparkfun-promicro/.cargo/config.toml
+++ b/examples/sparkfun-promicro/.cargo/config.toml
@@ -6,3 +6,4 @@ runner = "ravedude promicro"
 
 [unstable]
 build-std = ["core"]
+build-std-features = ["compiler-builtins-mangled-names"]
diff --git a/examples/trinket-pro/.cargo/config.toml b/examples/trinket-pro/.cargo/config.toml
index 75e8e82883..9660d5e3a0 100644
--- a/examples/trinket-pro/.cargo/config.toml
+++ b/examples/trinket-pro/.cargo/config.toml
@@ -6,3 +6,4 @@ runner = "ravedude trinket-pro"
 
 [unstable]
 build-std = ["core"]
+build-std-features = ["compiler-builtins-mangled-names"]
diff --git a/examples/trinket/.cargo/config.toml b/examples/trinket/.cargo/config.toml
index 49af361612..36a2a19664 100644
--- a/examples/trinket/.cargo/config.toml
+++ b/examples/trinket/.cargo/config.toml
@@ -6,3 +6,4 @@ runner = "ravedude trinket"
 
 [unstable]
 build-std = ["core"]
+build-std-features = ["compiler-builtins-mangled-names"]