Dec 03 04:52:09.596 INFO testing indexed_vec-1.1.1 against 1.30.1 for beta-1.31-5
Dec 03 04:52:09.596 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 03 04:52:10.091 INFO [stdout] 44b5e2e05c7615b51ba360b99c0a6ad035267172646943b04e65bd4dff0e1520
Dec 03 04:52:10.093 INFO running `"docker" "start" "-a" "44b5e2e05c7615b51ba360b99c0a6ad035267172646943b04e65bd4dff0e1520"`
Dec 03 04:52:11.627 INFO [stderr] usermod: no changes
Dec 03 04:52:11.688 INFO [stderr]    Compiling indexed_vec v1.1.1 (/source)
Dec 03 04:52:12.411 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 04:52:12.419 INFO [stderr]   --> src/lib.rs:11:1
Dec 03 04:52:12.419 INFO [stderr]    |
Dec 03 04:52:12.419 INFO [stderr] 11 | #![feature(unboxed_closures, fn_traits)]
Dec 03 04:52:12.419 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 04:52:12.419 INFO [stderr] 
Dec 03 04:52:12.419 INFO [stderr] error: aborting due to previous error
Dec 03 04:52:12.419 INFO [stderr] 
Dec 03 04:52:12.419 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 04:52:12.419 INFO [stderr] error: Could not compile `indexed_vec`.
Dec 03 04:52:12.419 INFO [stderr] 
Dec 03 04:52:12.419 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 04:52:12.419 INFO [stderr] su: No module specific data is present
Dec 03 04:52:13.069 INFO running `"docker" "inspect" "44b5e2e05c7615b51ba360b99c0a6ad035267172646943b04e65bd4dff0e1520"`
Dec 03 04:52:13.252 INFO running `"docker" "rm" "-f" "44b5e2e05c7615b51ba360b99c0a6ad035267172646943b04e65bd4dff0e1520"`
Dec 03 04:52:13.518 INFO [stdout] 44b5e2e05c7615b51ba360b99c0a6ad035267172646943b04e65bd4dff0e1520