Dec 02 13:52:39.230 INFO testing tk-redis-0.1.3 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 13:52:39.231 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 13:52:39.486 INFO [stdout] 338043b16a7b1c4622a279e17f5dbec39408c29cc47ecfc429d907a2998e9770
Dec 02 13:52:39.489 INFO running `"docker" "start" "-a" "338043b16a7b1c4622a279e17f5dbec39408c29cc47ecfc429d907a2998e9770"`
Dec 02 13:52:40.503 INFO [stderr] usermod: no changes
Dec 02 13:52:40.826 INFO [stderr]    Compiling nodrop-union v0.1.10
Dec 02 13:52:40.831 INFO [stderr]    Compiling spin v0.4.10
Dec 02 13:52:40.932 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 13:52:40.932 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.10/src/lib.rs:6:35
Dec 02 13:52:40.933 INFO [stderr]   |
Dec 02 13:52:40.933 INFO [stderr] 6 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
Dec 02 13:52:40.933 INFO [stderr]   |                                   ^^^^^^^^^^^^^^^^^
Dec 02 13:52:40.933 INFO [stderr] 
Dec 02 13:52:40.939 INFO [stderr] error: aborting due to previous error
Dec 02 13:52:40.939 INFO [stderr] 
Dec 02 13:52:40.939 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 13:52:40.939 INFO [stderr] error: Could not compile `spin`.
Dec 02 13:52:40.939 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 13:52:40.987 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 13:52:40.987 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/nodrop-union-0.1.10/src/lib.rs:21:1
Dec 02 13:52:40.987 INFO [stderr]    |
Dec 02 13:52:40.987 INFO [stderr] 21 | #![feature(untagged_unions)]
Dec 02 13:52:40.987 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 13:52:40.987 INFO [stderr] 
Dec 02 13:52:40.987 INFO [stderr] error: aborting due to previous error
Dec 02 13:52:40.987 INFO [stderr] 
Dec 02 13:52:40.987 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 13:52:40.991 INFO [stderr] error: Could not compile `nodrop-union`.
Dec 02 13:52:40.991 INFO [stderr] 
Dec 02 13:52:40.991 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 13:52:40.991 INFO [stderr] su: No module specific data is present
Dec 02 13:52:41.518 INFO running `"docker" "inspect" "338043b16a7b1c4622a279e17f5dbec39408c29cc47ecfc429d907a2998e9770"`
Dec 02 13:52:41.671 INFO running `"docker" "rm" "-f" "338043b16a7b1c4622a279e17f5dbec39408c29cc47ecfc429d907a2998e9770"`
Dec 02 13:52:41.792 INFO [stdout] 338043b16a7b1c4622a279e17f5dbec39408c29cc47ecfc429d907a2998e9770