Use 'serde' 'derive' feature, not 'serde_derive'.

examples/content_types/Cargo.toml

@@ -8,6 +8,5 @@ publish = false
 [dependencies]
 tokio = { version = "0.2.0", features = ["io-util"] }
 rocket = { path = "../../core/lib" }
-serde = "1.0"
+serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-serde_derive = "1.0"

examples/content_types/src/main.rs

@@ -1,15 +1,15 @@
 #[macro_use] extern crate rocket;
-#[macro_use] extern crate serde_derive;
 
 #[cfg(test)] mod tests;
 
 use std::io;
 
-use tokio::io::AsyncReadExt;
-
+use rocket::tokio::io::AsyncReadExt;
 use rocket::{Request, data::Data};
 use rocket::response::{Debug, content::{Json, Html}};
 
+use serde::{Serialize, Deserialize};
+
 // NOTE: This example explicitly uses the `Json` type from `response::content`
 // for demonstration purposes. In a real application, _always_ prefer to use
 // `rocket_contrib::json::Json` instead!

examples/handlebars_templates/Cargo.toml

@@ -7,8 +7,7 @@ publish = false
 
 [dependencies]
 rocket = { path = "../../core/lib" }
-serde = "1.0"
-serde_derive = "1.0"
+serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 
 [dependencies.rocket_contrib]

examples/handlebars_templates/src/main.rs

@@ -1,5 +1,4 @@
 #[macro_use] extern crate rocket;
-#[macro_use] extern crate serde_derive;
 
 #[cfg(test)] mod tests;
 
@@ -7,7 +6,7 @@ use rocket::Request;
 use rocket::response::Redirect;
 use rocket_contrib::templates::{Template, handlebars};
 
-#[derive(Serialize)]
+#[derive(serde::Serialize)]
 struct TemplateContext {
     title: &'static str,
     name: Option<String>,

examples/json/Cargo.toml

@@ -7,9 +7,8 @@ publish = false
 
 [dependencies]
 rocket = { path = "../../core/lib" }
-serde = "1.0"
+serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-serde_derive = "1.0"
 
 [dependencies.rocket_contrib]
 path = "../../contrib/lib"

examples/json/src/main.rs

@@ -1,6 +1,5 @@
 #[macro_use] extern crate rocket;
 #[macro_use] extern crate rocket_contrib;
-#[macro_use] extern crate serde_derive;
 
 #[cfg(test)] mod tests;
 
@@ -10,6 +9,8 @@ use std::collections::HashMap;
 use rocket::State;
 use rocket_contrib::json::{Json, JsonValue};
 
+use serde::{Serialize, Deserialize};
+
 // The type to represent the ID of a message.
 type ID = usize;
 

examples/msgpack/Cargo.toml

@@ -7,8 +7,7 @@ publish = false
 
 [dependencies]
 rocket = { path = "../../core/lib" }
-serde = "1.0"
-serde_derive = "1.0"
+serde = { version = "1.0", features = ["derive"] }
 
 [dependencies.rocket_contrib]
 path = "../../contrib/lib"

examples/msgpack/src/main.rs

@@ -1,10 +1,11 @@
 #[macro_use] extern crate rocket;
-#[macro_use] extern crate serde_derive;
 
 #[cfg(test)] mod tests;
 
 use rocket_contrib::msgpack::MsgPack;
 
+use serde::{Serialize, Deserialize};
+
 #[derive(Serialize, Deserialize)]
 struct Message<'r> {
     id: usize,

examples/msgpack/src/tests.rs

@@ -2,6 +2,8 @@ use crate::rocket;
 use rocket::local::blocking::Client;
 use rocket::http::{Status, ContentType};
 
+use serde::{Serialize, Deserialize};
+
 #[derive(Serialize, Deserialize)]
 struct Message {
     id: usize,

examples/tera_templates/Cargo.toml

@@ -7,8 +7,7 @@ publish = false
 
 [dependencies]
 rocket = { path = "../../core/lib" }
-serde = "1.0"
-serde_derive = "1.0"
+serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 
 [dependencies.rocket_contrib]

examples/tera_templates/src/main.rs

@@ -1,5 +1,4 @@
 #[macro_use] extern crate rocket;
-#[macro_use] extern crate serde_derive;
 
 #[cfg(test)] mod tests;
 
@@ -9,7 +8,7 @@ use rocket::Request;
 use rocket::response::Redirect;
 use rocket_contrib::templates::Template;
 
-#[derive(Serialize)]
+#[derive(serde::Serialize)]
 struct TemplateContext {
     name: String,
     items: Vec<&'static str>

examples/todo/Cargo.toml

@@ -7,9 +7,8 @@ publish = false
 
 [dependencies]
 rocket = { path = "../../core/lib" }
-serde = "1.0"
+serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-serde_derive = "1.0"
 diesel = { version = "1.3", features = ["sqlite", "r2d2"] }
 diesel_migrations = "1.3"
 log = "0.4"

examples/todo/src/main.rs

@@ -2,7 +2,6 @@
 #[macro_use] extern crate diesel;
 #[macro_use] extern crate diesel_migrations;
 #[macro_use] extern crate log;
-#[macro_use] extern crate serde_derive;
 #[macro_use] extern crate rocket_contrib;
 
 mod task;
@@ -25,7 +24,7 @@ embed_migrations!();
 #[database("sqlite_database")]
 pub struct DbConn(SqliteConnection);
 
-#[derive(Debug, Serialize)]
+#[derive(Debug, serde::Serialize)]
 struct Context<'a> {
     msg: Option<(&'a str, &'a str)>,
     tasks: Vec<Task>

examples/todo/src/task.rs

@@ -14,7 +14,7 @@ use self::schema::tasks;
 use self::schema::tasks::dsl::{tasks as all_tasks, completed as task_completed};
 
 #[table_name="tasks"]
-#[derive(Serialize, Queryable, Insertable, Debug, Clone)]
+#[derive(serde::Serialize, Queryable, Insertable, Debug, Clone)]
 pub struct Task {
     pub id: Option<i32>,
     pub description: String,