Dec 03 04:52:59.355 INFO testing incremental-topo-0.1.1 against 1.30.1 for beta-1.31-5
Dec 03 04:52:59.355 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 04:52:59.562 INFO [stdout] d0babc18b76d9cffba644b00f772807a44329d077a76e474231064c23e50ff1b
Dec 03 04:52:59.564 INFO running `"docker" "start" "-a" "d0babc18b76d9cffba644b00f772807a44329d077a76e474231064c23e50ff1b"`
Dec 03 04:52:59.931 INFO [stderr] usermod: no changes
Dec 03 04:53:00.013 INFO [stderr]    Compiling incremental-topo v0.1.1 (/source)
Dec 03 04:53:01.228 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 03 04:53:01.228 INFO [stderr]  --> src/lib.rs:1:1
Dec 03 04:53:01.228 INFO [stderr]   |
Dec 03 04:53:01.228 INFO [stderr] 1 | #![feature(nll)]
Dec 03 04:53:01.228 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 03 04:53:01.228 INFO [stderr] 
Dec 03 04:53:01.232 INFO [stderr] error: aborting due to previous error
Dec 03 04:53:01.232 INFO [stderr] 
Dec 03 04:53:01.232 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 03 04:53:01.243 INFO [stderr] error: Could not compile `incremental-topo`.
Dec 03 04:53:01.243 INFO [stderr] 
Dec 03 04:53:01.243 INFO [stderr] To learn more, run the command again with --verbose.
Dec 03 04:53:01.244 INFO [stderr] su: No module specific data is present
Dec 03 04:53:01.559 INFO running `"docker" "inspect" "d0babc18b76d9cffba644b00f772807a44329d077a76e474231064c23e50ff1b"`
Dec 03 04:53:01.633 INFO running `"docker" "rm" "-f" "d0babc18b76d9cffba644b00f772807a44329d077a76e474231064c23e50ff1b"`
Dec 03 04:53:01.712 INFO [stdout] d0babc18b76d9cffba644b00f772807a44329d077a76e474231064c23e50ff1b