Dec 03 00:33:56.504 INFO testing nibble-0.1.0 against 1.30.1 for beta-1.31-5
Dec 03 00:33:56.504 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 03 00:33:56.972 INFO [stdout] aad798daedadaa0805aa7b6549e1eb04be0825cca52e76cfc21a5dff51d4901b
Dec 03 00:33:56.979 INFO running `"docker" "start" "-a" "aad798daedadaa0805aa7b6549e1eb04be0825cca52e76cfc21a5dff51d4901b"`
Dec 03 00:33:58.219 INFO [stderr] usermod: no changes
Dec 03 00:33:58.287 INFO [stderr]    Compiling arrayvec v0.4.8
Dec 03 00:33:59.819 INFO [stderr]    Compiling nibble v0.1.0 (/source)
Dec 03 00:34:00.681 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 00:34:00.681 INFO [stderr]  --> src/lib.rs:6:1
Dec 03 00:34:00.681 INFO [stderr]   |
Dec 03 00:34:00.681 INFO [stderr] 6 | #![feature(try_from)]
Dec 03 00:34:00.681 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Dec 03 00:34:00.681 INFO [stderr] 
Dec 03 00:34:00.681 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 00:34:00.681 INFO [stderr]  --> src/lib.rs:8:1
Dec 03 00:34:00.681 INFO [stderr]   |
Dec 03 00:34:00.681 INFO [stderr] 8 | #![feature(trace_macros)]
Dec 03 00:34:00.681 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 03 00:34:00.681 INFO [stderr] 
Dec 03 00:34:00.687 INFO [stderr] error: aborting due to 2 previous errors
Dec 03 00:34:00.687 INFO [stderr] 
Dec 03 00:34:00.687 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 00:34:00.693 INFO [stderr] error: Could not compile `nibble`.
Dec 03 00:34:00.693 INFO [stderr] 
Dec 03 00:34:00.693 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 00:34:00.699 INFO [stderr] su: No module specific data is present
Dec 03 00:34:01.455 INFO running `"docker" "inspect" "aad798daedadaa0805aa7b6549e1eb04be0825cca52e76cfc21a5dff51d4901b"`
Dec 03 00:34:01.751 INFO running `"docker" "rm" "-f" "aad798daedadaa0805aa7b6549e1eb04be0825cca52e76cfc21a5dff51d4901b"`
Dec 03 00:34:02.091 INFO [stdout] aad798daedadaa0805aa7b6549e1eb04be0825cca52e76cfc21a5dff51d4901b