Ignore dead code warnings until visibility has been explained (#232)

exercises/03_ticket_v1/00_intro/Cargo.toml

@@ -2,3 +2,9 @@
 name = "intro_02"
 version = "0.1.0"
 edition = "2021"
+
+[lints.rust]
+# We silence dead code warnings for the time being in order to reduce
+# compiler noise.
+# We'll re-enable them again once we explain how visibility works in Rust.
+dead_code = "allow"

exercises/03_ticket_v1/01_struct/Cargo.toml

@@ -2,3 +2,9 @@
 name = "struct_"
 version = "0.1.0"
 edition = "2021"
+
+[lints.rust]
+# We silence dead code warnings for the time being in order to reduce
+# compiler noise.
+# We'll re-enable them again once we explain how visibility works in Rust.
+dead_code = "allow"

exercises/03_ticket_v1/02_validation/Cargo.toml

@@ -5,3 +5,9 @@ edition = "2021"
 
 [dev-dependencies]
 common = { path = "../../../helpers/common" }
+
+[lints.rust]
+# We silence dead code warnings for the time being in order to reduce
+# compiler noise.
+# We'll re-enable them again once we explain how visibility works in Rust.
+dead_code = "allow"

exercises/03_ticket_v1/03_modules/Cargo.toml

@@ -2,3 +2,9 @@
 name = "modules"
 version = "0.1.0"
 edition = "2021"
+
+[lints.rust]
+# We silence dead code warnings for the time being in order to reduce
+# compiler noise.
+# We'll re-enable them again once we explain how visibility works in Rust.
+dead_code = "allow"