Dec 02 20:34:54.068 INFO testing render-tree-0.1.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 20:34:54.068 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 20:34:54.537 INFO [stdout] 60ccd8e1306d52d50b6201d2e79bb66008c31872dcafffa23a7d2b3a182f0415
Dec 02 20:34:54.544 INFO running `"docker" "start" "-a" "60ccd8e1306d52d50b6201d2e79bb66008c31872dcafffa23a7d2b3a182f0415"`
Dec 02 20:34:55.916 INFO [stderr] usermod: no changes
Dec 02 20:34:55.991 INFO [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
Dec 02 20:34:56.042 INFO [stderr]    Compiling render-tree v0.1.0 (/source)
Dec 02 20:34:56.179 INFO [stderr] warning[E0705]: the feature `rust_2018_preview` is included in the Rust 2018 edition
Dec 02 20:34:56.179 INFO [stderr]  --> src/lib.rs:1:12
Dec 02 20:34:56.179 INFO [stderr]   |
Dec 02 20:34:56.179 INFO [stderr] 1 | #![feature(rust_2018_preview)]
Dec 02 20:34:56.179 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^
Dec 02 20:34:56.179 INFO [stderr] 
Dec 02 20:34:56.768 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 20:34:56.768 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 20:34:56.768 INFO [stderr]   |
Dec 02 20:34:56.768 INFO [stderr] 1 | #![feature(rust_2018_preview)]
Dec 02 20:34:56.768 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 20:34:56.768 INFO [stderr] 
Dec 02 20:34:56.773 INFO [stderr] error: aborting due to previous error
Dec 02 20:34:56.773 INFO [stderr] 
Dec 02 20:34:56.773 INFO [stderr] Some errors occurred: E0554, E0705.
Dec 02 20:34:56.773 INFO [stderr] For more information about an error, try `rustc --explain E0554`.
Dec 02 20:34:56.783 INFO [stderr] error: Could not compile `render-tree`.
Dec 02 20:34:56.783 INFO [stderr] 
Dec 02 20:34:56.783 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 20:34:56.784 INFO [stderr] su: No module specific data is present
Dec 02 20:34:57.160 INFO running `"docker" "inspect" "60ccd8e1306d52d50b6201d2e79bb66008c31872dcafffa23a7d2b3a182f0415"`
Dec 02 20:34:57.278 INFO running `"docker" "rm" "-f" "60ccd8e1306d52d50b6201d2e79bb66008c31872dcafffa23a7d2b3a182f0415"`
Dec 02 20:34:57.418 INFO [stdout] 60ccd8e1306d52d50b6201d2e79bb66008c31872dcafffa23a7d2b3a182f0415
