Dec 02 22:27:04.752 INFO testing plex-0.2.3 against 1.30.1 for beta-1.31-5
Dec 02 22:27:04.752 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-1/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 22:27:05.074 INFO [stdout] a9704ed43a9b038a13df5ef53079d673282dba90aa71c38f0ea361a337a75e41
Dec 02 22:27:05.076 INFO running `"docker" "start" "-a" "a9704ed43a9b038a13df5ef53079d673282dba90aa71c38f0ea361a337a75e41"`
Dec 02 22:27:05.702 INFO [stderr] usermod: no changes
Dec 02 22:27:05.764 INFO [stderr]    Compiling vec_map v0.6.0
Dec 02 22:27:05.764 INFO [stderr]    Compiling lalr v0.0.2
Dec 02 22:27:05.766 INFO [stderr]    Compiling syn v0.14.9
Dec 02 22:27:06.724 INFO [stderr]    Compiling redfa v0.0.2
Dec 02 22:27:22.671 INFO [stderr]    Compiling plex v0.2.3 (/source)
Dec 02 22:27:26.288 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 22:27:26.288 INFO [stderr]  --> src/lib.rs:2:1
Dec 02 22:27:26.288 INFO [stderr]   |
Dec 02 22:27:26.288 INFO [stderr] 2 | #![feature(proc_macro_diagnostic)]
Dec 02 22:27:26.288 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 22:27:26.288 INFO [stderr] 
Dec 02 22:27:26.288 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 22:27:26.288 INFO [stderr]  --> src/lib.rs:3:1
Dec 02 22:27:26.288 INFO [stderr]   |
Dec 02 22:27:26.288 INFO [stderr] 3 | #![feature(proc_macro_span)]
Dec 02 22:27:26.288 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 22:27:26.288 INFO [stderr] 
Dec 02 22:27:26.292 INFO [stderr] error: aborting due to 2 previous errors
Dec 02 22:27:26.292 INFO [stderr] 
Dec 02 22:27:26.292 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 22:27:26.301 INFO [stderr] error: Could not compile `plex`.
Dec 02 22:27:26.301 INFO [stderr] 
Dec 02 22:27:26.301 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 22:27:26.302 INFO [stderr] su: No module specific data is present
Dec 02 22:27:26.554 INFO running `"docker" "inspect" "a9704ed43a9b038a13df5ef53079d673282dba90aa71c38f0ea361a337a75e41"`
Dec 02 22:27:26.677 INFO running `"docker" "rm" "-f" "a9704ed43a9b038a13df5ef53079d673282dba90aa71c38f0ea361a337a75e41"`
Dec 02 22:27:26.795 INFO [stdout] a9704ed43a9b038a13df5ef53079d673282dba90aa71c38f0ea361a337a75e41