Merge #172

172: 171 enable debug symbols in release build r=jrvanwhy a=bcantrill

This fixes https://github.com/tock/libtock-rs/issues/171

Co-authored-by: Bryan Cantrill <bryan@oxide.computer>

Cargo.toml

diff --git a/Cargo.toml b/Cargo.toml
index 0f3a704..ee68117 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -50,10 +50,12 @@
 [profile.dev]
 panic = "abort"
 lto = true
+debug = true
 
 [profile.release]
 panic = "abort"
 lto = true
+debug = true
 
 [workspace]
 members = [