travis: Cleanup code and check minimal versions

By using --package, we can make the testing scripts
much more readable. We also remove deprecated keys/functionality so
that the .travis.yml file validates without warnings.

Author: josephlr

.travis.yml

@@ -1,26 +1,32 @@
 language: rust
-sudo: false
+os: linux
 
-matrix:
+jobs:
   include:
-    - name: "Linux, 1.32.0"
+    - &minimal_version
+      name: "Linux, 1.32.0"
       rust: 1.32.0
-      os: linux
+      script:
+        - cargo test
+        # We can't run the tests on 1.32 due to rust-lang/rust#48216
+        - cargo build --package cpurand-getrandom
 
-    - name: "OSX, 1.32.0"
-      rust: 1.32.0
+    - <<: *minimal_version
+      name: "OSX, 1.32.0"
       os: osx
 
     - name: "Linux, stable"
       rust: stable
+      script:
+        - cargo test --package getrandom --package cpurand-getrandom
 
     - name: "OSX+iOS, stable"
       rust: stable
       os: osx
       install:
         - rustup target add aarch64-apple-ios
       script:
-        - cargo test
+        - cargo test --package getrandom --package cpurand-getrandom --tests
         - cargo build --target aarch64-apple-ios
 
     - name: "Linux, beta"
@@ -68,41 +74,41 @@ matrix:
         # This is actually useful as it finds stuff such as rust-random/rand#669
         - cargo web test --target wasm32-unknown-emscripten --no-run
         - cargo web test --target asmjs-unknown-emscripten --no-run
-        # wasi tests
         - cargo test --target wasm32-wasi
-        # stdweb tests (Node, Chrome)
-        - cd custom/stdweb
-        - cargo web test --nodejs --target=wasm32-unknown-unknown
-        - cargo web test --target=wasm32-unknown-unknown
-        # wasm-bindgen tests (Node, Firefox, Chrome)
-        - cd ../wasm-bindgen
-        - cargo test --target wasm32-unknown-unknown --test node
-        - GECKODRIVER=$HOME/geckodriver cargo test --target wasm32-unknown-unknown --test web
-        - CHROMEDRIVER=$HOME/chromedriver cargo test --target wasm32-unknown-unknown --test web
+        # stdweb (wasm32-unknown-unknown) tests (Node, Chrome)
+        - cargo web test --package stdweb-getrandom
+        - cargo web test --package stdweb-getrandom --nodejs
+        # wasm-bindgen (wasm32-unknown-unknown) tests (Node, Firefox, Chrome)
+        - cargo test --package wasm-bindgen-getrandom
+          --target wasm32-unknown-unknown --test node
+        - GECKODRIVER=$HOME/geckodriver
+          cargo test --package wasm-bindgen-getrandom
+          --target wasm32-unknown-unknown --test web
+        - CHROMEDRIVER=$HOME/chromedriver
+          cargo test --package wasm-bindgen-getrandom
+          --target wasm32-unknown-unknown --test web
 
     - &nightly_and_docs
       name: "Linux, nightly, docs"
       rust: nightly
-      os: linux
       install:
         - rustup target add wasm32-unknown-unknown
         - cargo --list | egrep "^\s*deadlinks$" -q || cargo install cargo-deadlinks
         - cargo deadlinks -V
       script:
-        # Check that our tests pass in the default configuration
-        - cargo test
-        - cargo test --benches
         # Check that setting various features does not break the build
         - cargo build --features=std
         - cargo build --features=custom
         # remove cached documentation, otherwise files from previous PRs can get included
         - rm -rf target/doc
         - cargo doc --no-deps --features=std,custom
-        - cargo doc --no-deps --manifest-path=custom/wasm-bindgen/Cargo.toml --target=wasm32-unknown-unknown
+        - cargo doc --no-deps --package cpurand-getrandom
+        - cargo doc --no-deps --package wasm-bindgen-getrandom --target=wasm32-unknown-unknown
         - cargo deadlinks --dir target/doc
-        # also test minimum dependency versions are usable
+        # Check that our tests pass in the default/minimal configuration
+        - cargo test --package getrandom --package cpurand-getrandom --tests --benches
         - cargo generate-lockfile -Z minimal-versions
-        - cargo test --features=std,custom
+        - cargo test --package getrandom --package cpurand-getrandom --tests --benches
 
     - <<: *nightly_and_docs
       name: "OSX, nightly, docs"
@@ -120,7 +126,7 @@ matrix:
         - rustup target add x86_64-fortanix-unknown-sgx
         # For no_std targets
         - rustup component add rust-src
-        - cargo install cargo-xbuild || true
+        - cargo --list | egrep "^\s*xbuild$" -q || cargo install cargo-xbuild
       script:
         # We test that getrandom and cpurand build for all x86 targets
         - cd custom/cpurand
@@ -155,7 +161,6 @@ matrix:
     - name: "Linux (MIPS, big-endian)"
       env: TARGET=mips-unknown-linux-gnu
       rust: stable
-      sudo: required
       dist: trusty
       services: docker
       install:
@@ -167,7 +172,6 @@ matrix:
     - name: "Android (ARMv7)"
       env: TARGET=armv7-linux-androideabi
       rust: stable
-      sudo: required
       dist: trusty
       services: docker
       install:
@@ -194,9 +198,6 @@ before_install:
 before_script:
   - export RUSTFLAGS="-D warnings"
 
-script:
-  - cargo test
-
 after_script: set +e
 
 cache:

benches/mod.rs

@@ -1,5 +1,4 @@
 #![feature(test)]
-extern crate getrandom;
 extern crate test;
 
 #[bench]