Add CI on stable 1.42
diff --git a/.travis.yml b/.travis.yml
index aa158b7..1cc7806 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,7 @@
 rust:
   - nightly
   - beta
+  - stable
 
 script:
   - cargo run --manifest-path demo-rs/Cargo.toml
diff --git a/README.md b/README.md
index 801c14d..ea82afb 100644
--- a/README.md
+++ b/README.md
@@ -20,8 +20,7 @@
 cxx = "0.2"
 ```
 
-*Compiler support: requires rustc 1.42+ (beta on January 30, stable on March
-12)*
+*Compiler support: requires rustc 1.42+*
 
 <br>
 
diff --git a/WORKSPACE b/WORKSPACE
index 3e3baed..4357b70 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -24,17 +24,15 @@
 load("@io_bazel_rules_rust//rust:repositories.bzl", "rust_repository_set")
 
 rust_repository_set(
-    name = "rust_1_42_beta_linux",
+    name = "rust_1_42_linux",
     exec_triple = "x86_64-unknown-linux-gnu",
     extra_target_triples = [],
-    iso_date = "2020-02-08",
-    version = "beta",
+    version = "1.42.0",
 )
 
 rust_repository_set(
-    name = "rust_1_42_beta_darwin",
+    name = "rust_1_42_darwin",
     exec_triple = "x86_64-apple-darwin",
     extra_target_triples = [],
-    iso_date = "2020-02-08",
-    version = "beta",
+    version = "1.42.0",
 )
diff --git a/src/lib.rs b/src/lib.rs
index 24c5eaf..48c3b72 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -10,8 +10,7 @@
 //!
 //! <br>
 //!
-//! *Compiler support: requires rustc 1.42+ (beta on January 30, stable on March
-//! 12)*
+//! *Compiler support: requires rustc 1.42+*
 //!
 //! <br>
 //!