Dec 02 20:37:38.360 INFO testing release-manager-0.1.4 against 1.30.1 for beta-1.31-5
Dec 02 20:37:38.360 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 20:37:38.514 INFO [stdout] f752b8ad1e84c77884fef0a032505113d871c54ada99f4705663172ba882b4d7
Dec 02 20:37:38.516 INFO running `"docker" "start" "-a" "f752b8ad1e84c77884fef0a032505113d871c54ada99f4705663172ba882b4d7"`
Dec 02 20:37:38.893 INFO [stderr] usermod: no changes
Dec 02 20:37:39.004 INFO [stderr]    Compiling structopt v0.1.7
Dec 02 20:37:39.967 INFO [stderr]    Compiling release-manager v0.1.4 (/source)
Dec 02 20:37:41.780 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 20:37:41.780 INFO [stderr]   --> src/lib.rs:16:1
Dec 02 20:37:41.780 INFO [stderr]    |
Dec 02 20:37:41.780 INFO [stderr] 16 | #![feature(entry_and_modify)]
Dec 02 20:37:41.780 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 20:37:41.780 INFO [stderr] 
Dec 02 20:37:41.780 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 20:37:41.780 INFO [stderr]   --> src/lib.rs:17:1
Dec 02 20:37:41.780 INFO [stderr]    |
Dec 02 20:37:41.780 INFO [stderr] 17 | #![feature(try_from)]
Dec 02 20:37:41.780 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
Dec 02 20:37:41.780 INFO [stderr] 
Dec 02 20:37:41.785 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 20:37:41.785 INFO [stderr] 
Dec 02 20:37:41.785 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 20:37:41.794 INFO [stderr] error: Could not compile `release-manager`.
Dec 02 20:37:41.794 INFO [stderr] 
Dec 02 20:37:41.794 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 20:37:41.795 INFO [stderr] su: No module specific data is present
Dec 02 20:37:42.010 INFO running `"docker" "inspect" "f752b8ad1e84c77884fef0a032505113d871c54ada99f4705663172ba882b4d7"`
Dec 02 20:37:42.090 INFO running `"docker" "rm" "-f" "f752b8ad1e84c77884fef0a032505113d871c54ada99f4705663172ba882b4d7"`
Dec 02 20:37:42.159 INFO [stdout] f752b8ad1e84c77884fef0a032505113d871c54ada99f4705663172ba882b4d7