Dec 03 15:51:47.181 INFO testing closures-0.1.2 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 15:51:47.181 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 03 15:51:47.400 INFO [stdout] ffdc0e91150ae5323b6d038223025b1c15229759a2ba1d7ea9d7671aaf434aba
Dec 03 15:51:47.402 INFO running `"docker" "start" "-a" "ffdc0e91150ae5323b6d038223025b1c15229759a2ba1d7ea9d7671aaf434aba"`
Dec 03 15:51:47.783 INFO [stderr] usermod: no changes
Dec 03 15:51:47.818 INFO [stderr]    Compiling closures v0.1.2 (/source)
Dec 03 15:51:47.999 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 15:51:47.999 INFO [stderr]  --> src/lib.rs:1:1
Dec 03 15:51:47.999 INFO [stderr]   |
Dec 03 15:51:47.999 INFO [stderr] 1 | #![feature(unboxed_closures,fn_traits)]
Dec 03 15:51:47.999 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 15:51:47.999 INFO [stderr] 
Dec 03 15:51:48.002 INFO [stderr] error: aborting due to previous error
Dec 03 15:51:48.002 INFO [stderr] 
Dec 03 15:51:48.002 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 15:51:48.009 INFO [stderr] error: Could not compile `closures`.
Dec 03 15:51:48.010 INFO [stderr] 
Dec 03 15:51:48.010 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 15:51:48.010 INFO [stderr] su: No module specific data is present
Dec 03 15:51:48.346 INFO running `"docker" "inspect" "ffdc0e91150ae5323b6d038223025b1c15229759a2ba1d7ea9d7671aaf434aba"`
Dec 03 15:51:48.448 INFO running `"docker" "rm" "-f" "ffdc0e91150ae5323b6d038223025b1c15229759a2ba1d7ea9d7671aaf434aba"`
Dec 03 15:51:48.540 INFO [stdout] ffdc0e91150ae5323b6d038223025b1c15229759a2ba1d7ea9d7671aaf434aba
