Upgrade to Tokio 1.0 and remove async-std (#120)

* feat(providers): tokio 1.0

BREAKING: This removes async-std as a compatibility option

* feat: tokio 1.0 in rest of crates

* fix: patch Cargo.toml until deps are released

* fix(contract): load ws deps

* feat: bytes 1.0 (#121)

* feat(core): move to bytes::Bytes

* feat: adjust rest of crates to Bytes

* chore: bump deps

CI fails due to:
snapview/tokio-tungstenite#142 (comment)

* chore: use latest tokio-tungstenite

* ci: split tests into jobs (#129)

* Switch to `hex` (#128)

* fix(core): replace rustc_hex with hex

* fix(providers): replace rustc_hex with hex

* chore: replace rustc-hex with hex

* chore: cargo fmt

* fix(ledger): copy address from string correctly

* chore: fix flaky tests

Fixes #105

.github/workflows/ci.yml

@@ -15,16 +15,12 @@ jobs:
     steps:
       - name: Checkout sources
         uses: actions/checkout@v2
-
       - name: Install ganache-cli
         uses: actions/setup-node@v1
         with:
           node-version: 10
       - name: Install ganache
         run: npm install -g ganache-cli
-      - name: Install libusb (for Ledger)
-        run: sudo apt update && sudo apt install pkg-config libudev-dev
-
       - name: Install Solc
         run: |
             mkdir -p "$HOME/bin"
@@ -42,27 +38,76 @@ jobs:
             chmod u+x "$HOME/bin/geth"
             export PATH=$HOME/bin:$PATH
             geth version
-
       - name: Install stable toolchain
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
           toolchain: stable
           override: true
           components: rustfmt, clippy
-
       - name: cargo test
         run: |
             export PATH=$HOME/bin:$PATH
             cargo test
 
+  feature-tests:
+    name: Check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v2
+      - name: Install ganache-cli
+        uses: actions/setup-node@v1
+        with:
+          node-version: 10
+      # TODO: can we combine these shared steps in github actions?
+      - name: Install ganache
+        run: npm install -g ganache-cli
+      - name: Install Solc
+        run: |
+            mkdir -p "$HOME/bin"
+            wget -q https://github.com/ethereum/solidity/releases/download/v0.6.6/solc-static-linux -O $HOME/bin/solc
+            chmod u+x "$HOME/bin/solc"
+            export PATH=$HOME/bin:$PATH
+            solc --version
+      - name: Install geth
+        run: |
+            mkdir -p "$HOME/bin"
+            wget -q https://gethstore.blob.core.windows.net/builds/geth-linux-amd64-1.9.23-8c2f2715.tar.gz
+            tar -xvf geth-linux-amd64-1.9.23-8c2f2715.tar.gz
+            mv geth-linux-amd64-1.9.23-8c2f2715/geth $HOME/bin/geth
+            chmod u+x "$HOME/bin/geth"
+            export PATH=$HOME/bin:$PATH
+            geth version
+
+      - name: Install libusb (for Ledger)
+        run: sudo apt update && sudo apt install pkg-config libudev-dev
+      - name: Install stable toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+          components: rustfmt, clippy
       - name: cargo test (Celo)
         run: |
             export PATH=$HOME/bin:$PATH
             cargo test --all-features
 
+  lint:
+    name: Check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v2
+      - name: Install stable toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+          components: rustfmt, clippy
       - name: cargo fmt
         run: cargo fmt --all -- --check
-
       - name: cargo clippy
         run: cargo clippy -- -D warnings