Dec 03 12:22:26.020 INFO testing ezing-0.2.1 against 1.30.1 for beta-1.31-5
Dec 03 12:22:26.020 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 03 12:22:26.480 INFO [stdout] d1f556f0c387a22b6d53b915f341d0ee2d1419ca0065fce42bc332ed44469fb9
Dec 03 12:22:26.482 INFO running `"docker" "start" "-a" "d1f556f0c387a22b6d53b915f341d0ee2d1419ca0065fce42bc332ed44469fb9"`
Dec 03 12:22:28.131 INFO [stderr] usermod: no changes
Dec 03 12:22:28.271 INFO [stderr]    Compiling ezing v0.2.1 (/source)
Dec 03 12:22:29.295 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
Dec 03 12:22:29.300 INFO [stderr] su: No module specific data is present
Dec 03 12:22:30.500 INFO running `"docker" "inspect" "d1f556f0c387a22b6d53b915f341d0ee2d1419ca0065fce42bc332ed44469fb9"`
Dec 03 12:22:30.859 INFO running `"docker" "rm" "-f" "d1f556f0c387a22b6d53b915f341d0ee2d1419ca0065fce42bc332ed44469fb9"`
Dec 03 12:22:31.215 INFO [stdout] d1f556f0c387a22b6d53b915f341d0ee2d1419ca0065fce42bc332ed44469fb9
Dec 03 12:22:31.223 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 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 03 12:22:31.715 INFO [stdout] a3e319fe110153742a7cdb70c9eb9330df7c4fc3f51426f14bf0dc34e2d7e732
Dec 03 12:22:31.718 INFO running `"docker" "start" "-a" "a3e319fe110153742a7cdb70c9eb9330df7c4fc3f51426f14bf0dc34e2d7e732"`
Dec 03 12:22:33.373 INFO [stderr] usermod: no changes
Dec 03 12:22:33.620 INFO [stderr]    Compiling freetype-sys v0.6.0
Dec 03 12:22:36.091 INFO [stderr]    Compiling glium_text v0.12.0
Dec 03 12:22:41.067 INFO [stderr]    Compiling ezing v0.2.1 (/source)
Dec 03 12:22:42.402 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 12:22:42.402 INFO [stderr]  --> src/lib.rs:5:19
Dec 03 12:22:42.402 INFO [stderr]   |
Dec 03 12:22:42.402 INFO [stderr] 5 | #![cfg_attr(test, feature(concat_idents))]
Dec 03 12:22:42.402 INFO [stderr]   |                   ^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 12:22:42.402 INFO [stderr] 
Dec 03 12:22:42.404 INFO [stderr] error: aborting due to previous error
Dec 03 12:22:42.404 INFO [stderr] 
Dec 03 12:22:42.404 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 12:22:42.410 INFO [stderr] error: Could not compile `ezing`.
Dec 03 12:22:42.410 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 03 12:22:52.087 INFO [stderr] error: build failed
Dec 03 12:22:52.089 INFO [stderr] su: No module specific data is present
Dec 03 12:22:53.745 INFO running `"docker" "inspect" "a3e319fe110153742a7cdb70c9eb9330df7c4fc3f51426f14bf0dc34e2d7e732"`
Dec 03 12:22:54.145 INFO running `"docker" "rm" "-f" "a3e319fe110153742a7cdb70c9eb9330df7c4fc3f51426f14bf0dc34e2d7e732"`
Dec 03 12:22:54.496 INFO [stdout] a3e319fe110153742a7cdb70c9eb9330df7c4fc3f51426f14bf0dc34e2d7e732