Dec 02 16:34:36.606 INFO testing sleepfast-1.3.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 16:34:36.606 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt 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 02 16:34:36.995 INFO [stdout] 0732da32c453dcb6e081680e2898f244827b966e092c87b06e7942ef60203487
Dec 02 16:34:36.997 INFO running `"docker" "start" "-a" "0732da32c453dcb6e081680e2898f244827b966e092c87b06e7942ef60203487"`
Dec 02 16:34:38.057 INFO [stderr] usermod: no changes
Dec 02 16:34:38.126 INFO [stderr]    Compiling sleepfast v1.3.0 (/source)
Dec 02 16:34:38.719 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
Dec 02 16:34:38.725 INFO [stderr] su: No module specific data is present
Dec 02 16:34:39.331 INFO running `"docker" "inspect" "0732da32c453dcb6e081680e2898f244827b966e092c87b06e7942ef60203487"`
Dec 02 16:34:39.564 INFO running `"docker" "rm" "-f" "0732da32c453dcb6e081680e2898f244827b966e092c87b06e7942ef60203487"`
Dec 02 16:34:39.851 INFO [stdout] 0732da32c453dcb6e081680e2898f244827b966e092c87b06e7942ef60203487
Dec 02 16:34:39.863 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen --no-run" "-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 02 16:34:40.229 INFO [stdout] 2cb5141d6250dce78b918f6156c00b713cda5744314e9357fed8f0b7cc9f56af
Dec 02 16:34:40.236 INFO running `"docker" "start" "-a" "2cb5141d6250dce78b918f6156c00b713cda5744314e9357fed8f0b7cc9f56af"`
Dec 02 16:34:41.389 INFO [stderr] usermod: no changes
Dec 02 16:34:41.446 INFO [stderr]    Compiling sleepfast v1.3.0 (/source)
Dec 02 16:34:42.359 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 16:34:42.359 INFO [stderr]   --> tests/sleepfast-tests.rs:18:1
Dec 02 16:34:42.359 INFO [stderr]    |
Dec 02 16:34:42.359 INFO [stderr] 18 | #![feature(test)]
Dec 02 16:34:42.359 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 02 16:34:42.359 INFO [stderr] 
Dec 02 16:34:42.363 INFO [stderr] error: aborting due to previous error
Dec 02 16:34:42.363 INFO [stderr] 
Dec 02 16:34:42.363 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 16:34:42.363 INFO [stderr] error: Could not compile `sleepfast`.
Dec 02 16:34:42.363 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 16:34:42.891 INFO [stderr] error: build failed
Dec 02 16:34:42.893 INFO [stderr] su: No module specific data is present
Dec 02 16:34:43.627 INFO running `"docker" "inspect" "2cb5141d6250dce78b918f6156c00b713cda5744314e9357fed8f0b7cc9f56af"`
Dec 02 16:34:43.871 INFO running `"docker" "rm" "-f" "2cb5141d6250dce78b918f6156c00b713cda5744314e9357fed8f0b7cc9f56af"`
Dec 02 16:34:44.150 INFO [stdout] 2cb5141d6250dce78b918f6156c00b713cda5744314e9357fed8f0b7cc9f56af