Changed travis to test only one thread at a time
Error can happen if SDL is initialized twice in a row. Testing only one
test at a time ensures that this use-case can't happen.
@@ -34,6 +34,7 @@ after_success:
- travis-cargo --only stable doc-upload
env:
global:
+ - RUST_TEST_THREADS=1
- TRAVIS_CARGO_NIGHTLY_FEATURE=""
- LD_LIBRARY_PATH: "/usr/local/lib"
- secure: MJhmVnQ2IM7+sVmc3vU4ndKOcQgLLeHUPW3qaQBQHKQmvoswCwQK60N17uSgWn1Ln8teqvSRHq4KclIjdMHI+VuQXJHQKHDgjcYbHxwmc3AM1Whnp0XB44ksKUmD109BGWSfZQxzF+6dA+YNOQ+mti+bpydMu8n2FMVjA/SXwQ8=
