Dec 01 13:20:18.197 INFO testing jswrenn/basicb against 1.30.1 for beta-1.31-5
Dec 01 13:20:18.197 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/1.30.1:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 13:20:18.640 INFO [stdout] f9616bed295275f62d2b5aefd7223d0d41b7ba52f90f30ee8d246797293d7479
Dec 01 13:20:18.642 INFO running `"docker" "start" "-a" "f9616bed295275f62d2b5aefd7223d0d41b7ba52f90f30ee8d246797293d7479"`
Dec 01 13:20:21.353 INFO [stderr] usermod: no changes
Dec 01 13:20:21.484 INFO [stderr]    Compiling dimensioned v0.6.0
Dec 01 13:20:21.484 INFO [stderr]    Compiling nodrop v0.1.12
Dec 01 13:20:21.515 INFO [stderr]    Compiling structopt-derive v0.2.6
Dec 01 13:20:22.893 INFO [stderr]    Compiling generic-array v0.5.1
Dec 01 13:20:29.499 INFO [stderr]    Compiling structopt v0.2.6
Dec 01 13:20:36.829 INFO [stderr]    Compiling beep v0.2.0
Dec 01 13:20:37.323 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 13:20:37.323 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/beep-0.2.0/src/lib.rs:1:1
Dec 01 13:20:37.323 INFO [stderr]   |
Dec 01 13:20:37.323 INFO [stderr] 1 | #![feature(libc)]
Dec 01 13:20:37.323 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 01 13:20:37.323 INFO [stderr] 
Dec 01 13:20:37.324 INFO [stderr] error: aborting due to previous error
Dec 01 13:20:37.324 INFO [stderr] 
Dec 01 13:20:37.324 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 01 13:20:37.327 INFO [stderr] error: Could not compile `beep`.
Dec 01 13:20:37.327 INFO [stderr] 
Dec 01 13:20:37.327 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 13:20:37.329 INFO [stderr] su: No module specific data is present
Dec 01 13:20:38.151 INFO running `"docker" "inspect" "f9616bed295275f62d2b5aefd7223d0d41b7ba52f90f30ee8d246797293d7479"`
Dec 01 13:20:38.456 INFO running `"docker" "rm" "-f" "f9616bed295275f62d2b5aefd7223d0d41b7ba52f90f30ee8d246797293d7479"`
Dec 01 13:20:38.849 INFO [stdout] f9616bed295275f62d2b5aefd7223d0d41b7ba52f90f30ee8d246797293d7479
