install minimal profile by default

Author: RalfJung

.appveyor.yml

@@ -21,7 +21,7 @@ install:
     - set /p RUSTC_HASH=<rust-version
     # Install Rust
     - curl -sSf --retry 3 -o rustup-init.exe https://win.rustup.rs/
-    - rustup-init.exe -y --default-host %TARGET% --default-toolchain stable
+    - rustup-init.exe -y --default-host %TARGET% --default-toolchain stable --profile minimal
     - set PATH=%USERPROFILE%\.cargo\bin;%PATH%
     - rustup default stable
     - rustup uninstall beta

.travis.yml

@@ -31,7 +31,7 @@ before_script:
     RUSTC_HASH=$(cat rust-version)
   fi
 # Install Rust ("stable" toolchain for better caching, it is just used to build rustup-toolchain-install-master)
-- curl https://build.travis-ci.org/files/rustup-init.sh -sSf | sh -s -- -y --default-toolchain stable
+- curl https://build.travis-ci.org/files/rustup-init.sh -sSf | sh -s -- -y --default-toolchain stable --profile minimal
 - export PATH=$HOME/.cargo/bin:$PATH
 - rustup default stable
 - rustup uninstall beta