Dec 02 22:52:00.101 INFO testing persistentcache-0.1.6 against 1.30.1 for beta-1.31-5
Dec 02 22:52:00.101 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-7/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/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 22:52:00.716 INFO [stdout] b31c44fb15cb71d8d689a8d59c7f9668d9985d78721963f0ee709d7cbc56bb01
Dec 02 22:52:00.718 INFO running `"docker" "start" "-a" "b31c44fb15cb71d8d689a8d59c7f9668d9985d78721963f0ee709d7cbc56bb01"`
Dec 02 22:52:02.333 INFO [stderr] usermod: no changes
Dec 02 22:52:02.431 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 02 22:52:02.678 INFO [stderr]    Compiling futures-await-quote v0.4.0
Dec 02 22:52:02.678 INFO [stderr]    Compiling bincode v1.0.1
Dec 02 22:52:02.679 INFO [stderr]    Compiling regex v0.2.11
Dec 02 22:52:09.852 INFO [stderr]    Compiling futures-await-synom v0.12.0
Dec 02 22:52:19.641 INFO [stderr]    Compiling futures-await-syn v0.12.0
Dec 02 22:52:34.867 INFO [stderr]    Compiling persistentcache_procmacro v0.0.3
Dec 02 22:52:38.810 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 22:52:38.810 INFO [stderr]   --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/persistentcache_procmacro-0.0.3/src/lib.rs:15:1
Dec 02 22:52:38.810 INFO [stderr]    |
Dec 02 22:52:38.810 INFO [stderr] 15 | #![feature(proc_macro)]
Dec 02 22:52:38.810 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 22:52:38.810 INFO [stderr] 
Dec 02 22:52:38.810 INFO [stderr] error: aborting due to previous error
Dec 02 22:52:38.810 INFO [stderr] 
Dec 02 22:52:38.810 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 22:52:38.823 INFO [stderr] error: Could not compile `persistentcache_procmacro`.
Dec 02 22:52:38.823 INFO [stderr] 
Dec 02 22:52:38.823 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 22:52:38.827 INFO [stderr] su: No module specific data is present
Dec 02 22:52:39.411 INFO running `"docker" "inspect" "b31c44fb15cb71d8d689a8d59c7f9668d9985d78721963f0ee709d7cbc56bb01"`
Dec 02 22:52:39.679 INFO running `"docker" "rm" "-f" "b31c44fb15cb71d8d689a8d59c7f9668d9985d78721963f0ee709d7cbc56bb01"`
Dec 02 22:52:40.051 INFO [stdout] b31c44fb15cb71d8d689a8d59c7f9668d9985d78721963f0ee709d7cbc56bb01