Dec 02 10:14:42.948 INFO testing zcfg_flag_parser-0.2.0 against 1.30.1 for beta-1.31-5
Dec 02 10:14:42.948 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 02 10:14:43.336 INFO [stdout] 941e11fda0f4f939fd16c469b3e96d6f7039e1d04fbedaebda213a6993aa2076
Dec 02 10:14:43.341 INFO running `"docker" "start" "-a" "941e11fda0f4f939fd16c469b3e96d6f7039e1d04fbedaebda213a6993aa2076"`
Dec 02 10:14:44.634 INFO [stderr] usermod: no changes
Dec 02 10:14:44.687 INFO [stderr]    Compiling zcfg v0.2.0
Dec 02 10:14:45.315 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 10:14:45.315 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/zcfg-0.2.0/src/lib.rs:1:1
Dec 02 10:14:45.315 INFO [stderr]   |
Dec 02 10:14:45.315 INFO [stderr] 1 | #![feature(used)]
Dec 02 10:14:45.315 INFO [stderr]   | ^^^^^^^^^^^^^^^^^
Dec 02 10:14:45.315 INFO [stderr] 
Dec 02 10:14:45.315 INFO [stderr] error: aborting due to previous error
Dec 02 10:14:45.315 INFO [stderr] 
Dec 02 10:14:45.315 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 10:14:45.319 INFO [stderr] error: Could not compile `zcfg`.
Dec 02 10:14:45.319 INFO [stderr] 
Dec 02 10:14:45.319 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 10:14:45.320 INFO [stderr] su: No module specific data is present
Dec 02 10:14:45.803 INFO running `"docker" "inspect" "941e11fda0f4f939fd16c469b3e96d6f7039e1d04fbedaebda213a6993aa2076"`
Dec 02 10:14:45.891 INFO running `"docker" "rm" "-f" "941e11fda0f4f939fd16c469b3e96d6f7039e1d04fbedaebda213a6993aa2076"`
Dec 02 10:14:45.987 INFO [stdout] 941e11fda0f4f939fd16c469b3e96d6f7039e1d04fbedaebda213a6993aa2076