Dec 02 13:52:39.393 INFO testing tk-redis-0.1.3 against 1.30.1 for beta-1.31-5
Dec 02 13:52:39.393 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 13:52:39.679 INFO [stdout] ff97e199ec9c322a5a9d8d5de7bcc8ae2963ef19260eea507c75ff8a4c9b736e
Dec 02 13:52:39.684 INFO running `"docker" "start" "-a" "ff97e199ec9c322a5a9d8d5de7bcc8ae2963ef19260eea507c75ff8a4c9b736e"`
Dec 02 13:52:40.955 INFO [stderr] usermod: no changes
Dec 02 13:52:41.112 INFO [stderr]    Compiling nodrop-union v0.1.10
Dec 02 13:52:41.114 INFO [stderr]    Compiling spin v0.4.10
Dec 02 13:52:41.204 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 13:52:41.204 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/nodrop-union-0.1.10/src/lib.rs:21:1
Dec 02 13:52:41.204 INFO [stderr]    |
Dec 02 13:52:41.204 INFO [stderr] 21 | #![feature(untagged_unions)]
Dec 02 13:52:41.204 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 13:52:41.204 INFO [stderr] 
Dec 02 13:52:41.204 INFO [stderr] error: aborting due to previous error
Dec 02 13:52:41.204 INFO [stderr] 
Dec 02 13:52:41.204 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 13:52:41.205 INFO [stderr] error: Could not compile `nodrop-union`.
Dec 02 13:52:41.205 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 13:52:41.259 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 13:52:41.259 INFO [stderr]  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.10/src/lib.rs:6:35
Dec 02 13:52:41.259 INFO [stderr]   |
Dec 02 13:52:41.259 INFO [stderr] 6 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
Dec 02 13:52:41.259 INFO [stderr]   |                                   ^^^^^^^^^^^^^^^^^^
Dec 02 13:52:41.259 INFO [stderr] 
Dec 02 13:52:41.259 INFO [stderr] error: aborting due to previous error
Dec 02 13:52:41.259 INFO [stderr] 
Dec 02 13:52:41.259 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 13:52:41.267 INFO [stderr] error: Could not compile `spin`.
Dec 02 13:52:41.267 INFO [stderr] 
Dec 02 13:52:41.267 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 13:52:41.272 INFO [stderr] su: No module specific data is present
Dec 02 13:52:41.749 INFO running `"docker" "inspect" "ff97e199ec9c322a5a9d8d5de7bcc8ae2963ef19260eea507c75ff8a4c9b736e"`
Dec 02 13:52:41.878 INFO running `"docker" "rm" "-f" "ff97e199ec9c322a5a9d8d5de7bcc8ae2963ef19260eea507c75ff8a4c9b736e"`
Dec 02 13:52:42.055 INFO [stdout] ff97e199ec9c322a5a9d8d5de7bcc8ae2963ef19260eea507c75ff8a4c9b736e