Dec 01 17:29:33.837 INFO testing fkaa/flu against 1.30.1 for beta-1.31-5
Dec 01 17:29:33.838 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 01 17:29:34.283 INFO [stdout] 3c5c81465eb44204827bbd8c680d4db6f29c7746e6af02ee2f92dc93aa2f3443
Dec 01 17:29:34.285 INFO running `"docker" "start" "-a" "3c5c81465eb44204827bbd8c680d4db6f29c7746e6af02ee2f92dc93aa2f3443"`
Dec 01 17:29:35.816 INFO [stderr] usermod: no changes
Dec 01 17:29:35.907 INFO [stderr]    Compiling gcc v0.3.11
Dec 01 17:29:35.907 INFO [stderr]    Compiling pkg-config v0.3.5
Dec 01 17:29:35.907 INFO [stderr]    Compiling libc v0.2.8
Dec 01 17:29:38.438 INFO [stderr]    Compiling flu v0.0.2 (/source)
Dec 01 17:29:43.423 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 17:29:43.423 INFO [stderr]  --> src/lib.rs:1:1
Dec 01 17:29:43.423 INFO [stderr]   |
Dec 01 17:29:43.423 INFO [stderr] 1 | #![feature(unboxed_closures)]
Dec 01 17:29:43.423 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 17:29:43.423 INFO [stderr] 
Dec 01 17:29:43.423 INFO [stderr] error: aborting due to previous error
Dec 01 17:29:43.423 INFO [stderr] 
Dec 01 17:29:43.423 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 01 17:29:43.433 INFO [stderr] error: Could not compile `flu`.
Dec 01 17:29:43.433 INFO [stderr] 
Dec 01 17:29:43.433 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 17:29:43.434 INFO [stderr] su: No module specific data is present
Dec 01 17:29:44.039 INFO running `"docker" "inspect" "3c5c81465eb44204827bbd8c680d4db6f29c7746e6af02ee2f92dc93aa2f3443"`
Dec 01 17:29:44.169 INFO running `"docker" "rm" "-f" "3c5c81465eb44204827bbd8c680d4db6f29c7746e6af02ee2f92dc93aa2f3443"`
Dec 01 17:29:44.311 INFO [stdout] 3c5c81465eb44204827bbd8c680d4db6f29c7746e6af02ee2f92dc93aa2f3443
