Dec 03 13:49:28.044 INFO testing docker4rs-0.0.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 13:49:28.044 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 13:49:28.617 INFO [stdout] 9703efb15df995aedbf3feb3414067b333b197d65d8dba515a2ce3d6e5503db2
Dec 03 13:49:28.619 INFO running `"docker" "start" "-a" "9703efb15df995aedbf3feb3414067b333b197d65d8dba515a2ce3d6e5503db2"`
Dec 03 13:49:30.694 INFO [stderr] usermod: no changes
Dec 03 13:49:30.956 INFO [stderr]    Compiling docker4rs v0.0.1 (/source)
Dec 03 13:49:34.694 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 03 13:49:34.695 INFO [stderr]  --> src/lib.rs:2:1
Dec 03 13:49:34.695 INFO [stderr]   |
Dec 03 13:49:34.695 INFO [stderr] 2 | #![feature(proc_macro, plugin, custom_derive)]
Dec 03 13:49:34.695 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 13:49:34.699 INFO [stderr] 
Dec 03 13:49:34.699 INFO [stderr] error: aborting due to previous error
Dec 03 13:49:34.699 INFO [stderr] 
Dec 03 13:49:34.699 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 13:49:34.711 INFO [stderr] error: Could not compile `docker4rs`.
Dec 03 13:49:34.711 INFO [stderr] 
Dec 03 13:49:34.711 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 13:49:34.712 INFO [stderr] su: No module specific data is present
Dec 03 13:49:35.835 INFO running `"docker" "inspect" "9703efb15df995aedbf3feb3414067b333b197d65d8dba515a2ce3d6e5503db2"`
Dec 03 13:49:36.108 INFO running `"docker" "rm" "-f" "9703efb15df995aedbf3feb3414067b333b197d65d8dba515a2ce3d6e5503db2"`
Dec 03 13:49:36.398 INFO [stdout] 9703efb15df995aedbf3feb3414067b333b197d65d8dba515a2ce3d6e5503db2