Dec 02 05:08:55.959 INFO testing Munksgaard/base64 against 1.30.1 for beta-1.31-5
Dec 02 05:08:55.959 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 05:08:56.304 INFO [stdout] caa14f94811e6a500320be30260cdb20209c2a3cc3cc5a0998708f2c60df5c42
Dec 02 05:08:56.306 INFO running `"docker" "start" "-a" "caa14f94811e6a500320be30260cdb20209c2a3cc3cc5a0998708f2c60df5c42"`
Dec 02 05:08:56.870 INFO [stderr] usermod: no changes
Dec 02 05:08:56.910 INFO [stderr]    Compiling libc v0.2.8
Dec 02 05:08:57.912 INFO [stderr]    Compiling rand v0.3.14
Dec 02 05:09:00.195 INFO [stderr]    Compiling base64 v0.0.1 (/source)
Dec 02 05:09:01.671 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 05:09:01.671 INFO [stderr]  --> src/main.rs:1:1
Dec 02 05:09:01.671 INFO [stderr]   |
Dec 02 05:09:01.671 INFO [stderr] 1 | #![feature(slice_patterns)]
Dec 02 05:09:01.671 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 05:09:01.671 INFO [stderr] 
Dec 02 05:09:01.671 INFO [stderr] error: aborting due to previous error
Dec 02 05:09:01.671 INFO [stderr] 
Dec 02 05:09:01.671 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 05:09:01.673 INFO [stderr] error: Could not compile `base64`.
Dec 02 05:09:01.673 INFO [stderr] 
Dec 02 05:09:01.673 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 05:09:01.674 INFO [stderr] su: No module specific data is present
Dec 02 05:09:02.180 INFO running `"docker" "inspect" "caa14f94811e6a500320be30260cdb20209c2a3cc3cc5a0998708f2c60df5c42"`
Dec 02 05:09:02.311 INFO running `"docker" "rm" "-f" "caa14f94811e6a500320be30260cdb20209c2a3cc3cc5a0998708f2c60df5c42"`
Dec 02 05:09:02.492 INFO [stdout] caa14f94811e6a500320be30260cdb20209c2a3cc3cc5a0998708f2c60df5c42