Dec 02 08:56:12.025 INFO testing CJP10/tail-reader against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 08:56:12.025 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 08:56:12.494 INFO [stdout] 9f50735cb622d38e2901ca826300a3f5d40b4fff95baeb80fce1bb6eb03f018e
Dec 02 08:56:12.500 INFO running `"docker" "start" "-a" "9f50735cb622d38e2901ca826300a3f5d40b4fff95baeb80fce1bb6eb03f018e"`
Dec 02 08:56:13.550 INFO [stderr] usermod: no changes
Dec 02 08:56:13.766 INFO [stderr]    Compiling crossbeam-epoch v0.6.0
Dec 02 08:56:13.771 INFO [stderr]    Compiling tokio-reactor v0.1.5
Dec 02 08:56:13.775 INFO [stderr]    Compiling pretty_env_logger v0.2.4
Dec 02 08:56:17.228 INFO [stderr]    Compiling crossbeam-channel v0.2.6
Dec 02 08:56:20.233 INFO [stderr]    Compiling inotify v0.6.1
Dec 02 08:56:23.411 INFO [stderr]    Compiling notify v4.0.6
Dec 02 08:56:29.782 INFO [stderr]    Compiling tail-reader v2.1.3 (/source)
Dec 02 08:56:32.906 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 08:56:32.906 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 08:56:32.906 INFO [stderr]   |
Dec 02 08:56:32.906 INFO [stderr] 1 | #![feature(test)]
Dec 02 08:56:32.906 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 02 08:56:32.906 INFO [stderr] 
Dec 02 08:56:32.911 INFO [stderr] error: aborting due to previous error
Dec 02 08:56:32.911 INFO [stderr] 
Dec 02 08:56:32.911 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 08:56:32.919 INFO [stderr] error: Could not compile `tail-reader`.
Dec 02 08:56:32.919 INFO [stderr] 
Dec 02 08:56:32.919 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 08:56:32.921 INFO [stderr] su: No module specific data is present
Dec 02 08:56:33.628 INFO running `"docker" "inspect" "9f50735cb622d38e2901ca826300a3f5d40b4fff95baeb80fce1bb6eb03f018e"`
Dec 02 08:56:33.895 INFO running `"docker" "rm" "-f" "9f50735cb622d38e2901ca826300a3f5d40b4fff95baeb80fce1bb6eb03f018e"`
Dec 02 08:56:34.299 INFO [stdout] 9f50735cb622d38e2901ca826300a3f5d40b4fff95baeb80fce1bb6eb03f018e
