Dec 02 21:41:40.604 INFO testing ptr-0.2.1 against 1.30.1 for beta-1.31-5
Dec 02 21:41:40.604 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 21:41:40.959 INFO [stdout] 7c85c87e8f8c59d563d712da4c319331cf6adfc5d400ff2b9b1a30b1315f7a70
Dec 02 21:41:40.965 INFO running `"docker" "start" "-a" "7c85c87e8f8c59d563d712da4c319331cf6adfc5d400ff2b9b1a30b1315f7a70"`
Dec 02 21:41:42.203 INFO [stderr] usermod: no changes
Dec 02 21:41:42.291 INFO [stderr]    Compiling ptr v0.2.1 (/source)
Dec 02 21:41:43.593 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 21:41:43.593 INFO [stderr]   --> src/lib.rs:13:1
Dec 02 21:41:43.593 INFO [stderr]    |
Dec 02 21:41:43.593 INFO [stderr] 13 | #![feature(const_fn)]
Dec 02 21:41:43.593 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 02 21:41:43.593 INFO [stderr] 
Dec 02 21:41:43.593 INFO [stderr] error: aborting due to previous error
Dec 02 21:41:43.593 INFO [stderr] 
Dec 02 21:41:43.593 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 21:41:43.603 INFO [stderr] error: Could not compile `ptr`.
Dec 02 21:41:43.603 INFO [stderr] 
Dec 02 21:41:43.603 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 21:41:43.604 INFO [stderr] su: No module specific data is present
Dec 02 21:41:44.404 INFO running `"docker" "inspect" "7c85c87e8f8c59d563d712da4c319331cf6adfc5d400ff2b9b1a30b1315f7a70"`
Dec 02 21:41:44.615 INFO running `"docker" "rm" "-f" "7c85c87e8f8c59d563d712da4c319331cf6adfc5d400ff2b9b1a30b1315f7a70"`
Dec 02 21:41:44.761 INFO [stdout] 7c85c87e8f8c59d563d712da4c319331cf6adfc5d400ff2b9b1a30b1315f7a70