Dec 02 22:51:48.084 INFO testing persistentcache_procmacro-0.0.3 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 22:51:48.084 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 22:51:48.280 INFO [stdout] 4a33af246df5407897daa7f929110eb6015f3023aa20cd3dd58e58af5792db8e
Dec 02 22:51:48.283 INFO running `"docker" "start" "-a" "4a33af246df5407897daa7f929110eb6015f3023aa20cd3dd58e58af5792db8e"`
Dec 02 22:51:48.859 INFO [stderr] usermod: no changes
Dec 02 22:51:48.911 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 02 22:51:48.963 INFO [stderr]    Compiling futures-await-quote v0.4.0
Dec 02 22:51:53.235 INFO [stderr]    Compiling futures-await-synom v0.12.0
Dec 02 22:51:58.767 INFO [stderr]    Compiling futures-await-syn v0.12.0
Dec 02 22:52:13.911 INFO [stderr]    Compiling persistentcache_procmacro v0.0.3 (/source)
Dec 02 22:52:17.219 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 22:52:17.219 INFO [stderr]   --> src/lib.rs:15:1
Dec 02 22:52:17.219 INFO [stderr]    |
Dec 02 22:52:17.219 INFO [stderr] 15 | #![feature(proc_macro)]
Dec 02 22:52:17.219 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 22:52:17.219 INFO [stderr] 
Dec 02 22:52:17.219 INFO [stderr] error: aborting due to previous error
Dec 02 22:52:17.219 INFO [stderr] 
Dec 02 22:52:17.219 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 22:52:17.225 INFO [stderr] error: Could not compile `persistentcache_procmacro`.
Dec 02 22:52:17.225 INFO [stderr] 
Dec 02 22:52:17.225 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 22:52:17.225 INFO [stderr] su: No module specific data is present
Dec 02 22:52:17.925 INFO running `"docker" "inspect" "4a33af246df5407897daa7f929110eb6015f3023aa20cd3dd58e58af5792db8e"`
Dec 02 22:52:18.177 INFO running `"docker" "rm" "-f" "4a33af246df5407897daa7f929110eb6015f3023aa20cd3dd58e58af5792db8e"`
Dec 02 22:52:18.425 INFO [stdout] 4a33af246df5407897daa7f929110eb6015f3023aa20cd3dd58e58af5792db8e