Dec 03 00:27:23.025 INFO testing nodrop-union-0.1.10 against 1.30.1 for beta-1.31-5
Dec 03 00:27:23.026 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 03 00:27:23.458 INFO [stdout] beeff5e39af1f5f31caa1687aef408e81010c11a77614542a9c9cc7bccd1a000
Dec 03 00:27:23.460 INFO running `"docker" "start" "-a" "beeff5e39af1f5f31caa1687aef408e81010c11a77614542a9c9cc7bccd1a000"`
Dec 03 00:27:25.143 INFO [stderr] usermod: no changes
Dec 03 00:27:25.203 INFO [stderr]    Compiling nodrop-union v0.1.10 (/source)
Dec 03 00:27:25.308 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 00:27:25.308 INFO [stderr]   --> src/lib.rs:21:1
Dec 03 00:27:25.308 INFO [stderr]    |
Dec 03 00:27:25.308 INFO [stderr] 21 | #![feature(untagged_unions)]
Dec 03 00:27:25.308 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 00:27:25.308 INFO [stderr] 
Dec 03 00:27:25.308 INFO [stderr] error: aborting due to previous error
Dec 03 00:27:25.308 INFO [stderr] 
Dec 03 00:27:25.308 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 00:27:25.315 INFO [stderr] error: Could not compile `nodrop-union`.
Dec 03 00:27:25.315 INFO [stderr] 
Dec 03 00:27:25.315 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 00:27:25.315 INFO [stderr] su: No module specific data is present
Dec 03 00:27:26.159 INFO running `"docker" "inspect" "beeff5e39af1f5f31caa1687aef408e81010c11a77614542a9c9cc7bccd1a000"`
Dec 03 00:27:26.453 INFO running `"docker" "rm" "-f" "beeff5e39af1f5f31caa1687aef408e81010c11a77614542a9c9cc7bccd1a000"`
Dec 03 00:27:26.807 INFO [stdout] beeff5e39af1f5f31caa1687aef408e81010c11a77614542a9c9cc7bccd1a000