Dec 02 08:30:52.814 INFO testing DD5HT/dxtracker against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 08:30:52.814 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 08:30:53.159 INFO [stdout] 0a4e1394bea24a05107cdaa61b8c15c6943e5c221ec2d9fed50d282e2e5d7153
Dec 02 08:30:53.160 INFO running `"docker" "start" "-a" "0a4e1394bea24a05107cdaa61b8c15c6943e5c221ec2d9fed50d282e2e5d7153"`
Dec 02 08:30:54.786 INFO [stderr] usermod: no changes
Dec 02 08:30:54.901 INFO [stderr]    Compiling csv-core v0.1.4
Dec 02 08:30:54.901 INFO [stderr]    Compiling syn v0.14.7
Dec 02 08:30:57.039 INFO [stderr]    Compiling csv v1.0.0
Dec 02 08:31:06.651 INFO [stderr]    Compiling serde_derive v1.0.70
Dec 02 08:31:19.747 INFO [stderr]    Compiling dxtracker v0.1.2 (/source)
Dec 02 08:31:21.003 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 08:31:21.003 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 08:31:21.003 INFO [stderr]   |
Dec 02 08:31:21.003 INFO [stderr] 1 | #![feature(rust_2018_preview)]
Dec 02 08:31:21.003 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:31:21.003 INFO [stderr] 
Dec 02 08:31:21.003 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 08:31:21.003 INFO [stderr]  --> src/lib.rs:2:1
Dec 02 08:31:21.003 INFO [stderr]   |
Dec 02 08:31:21.003 INFO [stderr] 2 | #![feature(vec_remove_item)]
Dec 02 08:31:21.003 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 08:31:21.003 INFO [stderr] 
Dec 02 08:31:21.007 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 08:31:21.007 INFO [stderr] 
Dec 02 08:31:21.007 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 08:31:21.019 INFO [stderr] error: Could not compile `dxtracker`.
Dec 02 08:31:21.019 INFO [stderr] 
Dec 02 08:31:21.019 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 08:31:21.019 INFO [stderr] su: No module specific data is present
Dec 02 08:31:21.567 INFO running `"docker" "inspect" "0a4e1394bea24a05107cdaa61b8c15c6943e5c221ec2d9fed50d282e2e5d7153"`
Dec 02 08:31:21.921 INFO running `"docker" "rm" "-f" "0a4e1394bea24a05107cdaa61b8c15c6943e5c221ec2d9fed50d282e2e5d7153"`
Dec 02 08:31:22.154 INFO [stdout] 0a4e1394bea24a05107cdaa61b8c15c6943e5c221ec2d9fed50d282e2e5d7153