diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index d00cc4bcb1..0000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,50 +0,0 @@
-# Travis CI script borrows heavily from CraneStation/wasmtime project.
-os:
-  - linux
-  - osx
-  - windows
-language: rust
-rust:
-    - 1.36.0
-    - stable
-    - beta
-    - nightly
-matrix:
-  allow_failures:
-    # We try to be compatible with beta and nightly, but they occasionally
-    # fail, so we don't allow them to hold up people using stable.
-    - rust: beta
-    - rust: nightly
-  # Similarly, we don't need to hold up people using stable while we wait
-  # for the results which may fail.
-  fast_finish: true
-dist: xenial
-sudo: false
-# Caching done according to pointers found in
-# https://levans.fr/rust_travis_cache.html
-cache:
-  directories:
-    - $HOME/.cargo
-before_cache:
-  - rm -rf /home/travis/.cargo/registry
-before_install:
-  - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then choco install python3; fi
-  - if [[ "$TRAVIS_OS_NAME" == "windows" ]]; then export PATH="/c/Python37:/c/Python37/Scripts:$PATH"; fi
-before_script:
-  # If an old version of rustfmt from cargo is already installed, uninstall
-  # it, since it can prevent the installation of the new version from rustup.
-  - cargo uninstall rustfmt || true
-  - cargo install --list
-  # If we're testing beta or nightly, we still need to install the stable
-  # toolchain so that we can run the stable version of rustfmt.
-  - rustup toolchain install stable
-  # Install the stable version of rustfmt.
-  - rustup component add --toolchain=stable rustfmt-preview
-  - rustup component list --toolchain=stable
-  - rustup show
-  - rustfmt +stable --version || echo fail
-  # Sometimes the component isn't actually ready after being installed, and
-  # rustup update makes it ready.
-  - rustup update
-  - rustfmt +stable --version
-script: ./test-all.sh
diff --git a/format-all.sh b/format-all.sh
deleted file mode 100755
index be988166fe..0000000000
--- a/format-all.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/bash
-set -euo pipefail
-
-# Format all sources using rustfmt.
-# This script borrows heavily from CraneStation/wasmtime project.
-
-topdir=$(dirname "$0")
-cd "$topdir"
-
-# Make sure we can find rustfmt.
-export PATH="$PATH:$HOME/.cargo/bin"
-
-exec cargo +stable fmt --all -- "$@"
diff --git a/test-all.sh b/test-all.sh
deleted file mode 100755
index 0054f6939d..0000000000
--- a/test-all.sh
+++ /dev/null
@@ -1,53 +0,0 @@
-#!/bin/bash
-set -euo pipefail
-
-# This is the top-level test script borrows heavily from CraneStation/wasmtime project:
-#
-# - Check code formatting.
-# - Make a debug build.
-# - Make a release build.
-# - Run unit tests for all Rust crates
-# - Build API documentation.
-#
-# All tests run by this script should be passing at all times.
-
-# Repository top-level directory.
-topdir=$(dirname "$0")
-cd "$topdir"
-
-function banner {
-    echo "======  $*  ======"
-}
-
-# Run rustfmt if we have it.
-banner "Rust formatting"
-if cargo +stable fmt -- --version > /dev/null ; then
-    if ! "$topdir/format-all.sh" --check ; then
-        echo "Formatting diffs detected! Run \"cargo fmt --all\" to correct."
-        exit 1
-    fi
-else
-    echo "cargo-fmt not available; formatting not checked!"
-    echo
-    echo "If you are using rustup, rustfmt can be installed via"
-    echo "\"rustup component add --toolchain=stable rustfmt-preview\", or see"
-    echo "https://github.com/rust-lang-nursery/rustfmt for more information."
-fi
-
-# Make sure the code builds in release mode.
-banner "Rust release build"
-cargo build --release
-
-# Make sure the code builds in debug mode.
-banner "Rust debug build"
-cargo build
-
-# Run the tests. We run these in debug mode so that assertions are enabled.
-banner "Rust unit and integration tests"
-RUST_BACKTRACE=1 cargo test --all
-
-# Make sure the documentation builds.
-banner "Rust documentation: $topdir/target/doc/wasi-common/index.html"
-cargo doc
-
-banner "OK"