Dec 03 16:53:33.882 INFO testing cargo-snippet-0.2.5 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 16:53:33.882 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 03 16:53:34.248 INFO [stdout] 1d996f4441d8af39728aaed5b19b926716c1849484cadf38fcd1dd57b7578ab5
Dec 03 16:53:34.250 INFO running `"docker" "start" "-a" "1d996f4441d8af39728aaed5b19b926716c1849484cadf38fcd1dd57b7578ab5"`
Dec 03 16:53:35.708 INFO [stderr] usermod: no changes
Dec 03 16:53:35.931 INFO [stderr]    Compiling cargo-snippet v0.2.5 (/source)
Dec 03 16:53:41.025 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 16:53:41.025 INFO [stderr]  --> src/lib.rs:2:1
Dec 03 16:53:41.025 INFO [stderr]   |
Dec 03 16:53:41.025 INFO [stderr] 2 | #![feature(plugin_registrar, rustc_private)]
Dec 03 16:53:41.026 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 16:53:41.026 INFO [stderr] 
Dec 03 16:53:41.026 INFO [stderr] error: aborting due to previous error
Dec 03 16:53:41.026 INFO [stderr] 
Dec 03 16:53:41.026 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 16:53:41.047 INFO [stderr] error: Could not compile `cargo-snippet`.
Dec 03 16:53:41.047 INFO [stderr] 
Dec 03 16:53:41.047 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 16:53:41.049 INFO [stderr] su: No module specific data is present
Dec 03 16:53:41.401 INFO running `"docker" "inspect" "1d996f4441d8af39728aaed5b19b926716c1849484cadf38fcd1dd57b7578ab5"`
Dec 03 16:53:41.521 INFO running `"docker" "rm" "-f" "1d996f4441d8af39728aaed5b19b926716c1849484cadf38fcd1dd57b7578ab5"`
Dec 03 16:53:41.667 INFO [stdout] 1d996f4441d8af39728aaed5b19b926716c1849484cadf38fcd1dd57b7578ab5