Dec 01 14:38:41.049 INFO testing jacobgardner/chessAI against 1.30.1 for beta-1.31-5
Dec 01 14:38:41.049 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-2/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 01 14:38:41.504 INFO [stdout] 34396e51382e01b779cc4f0d4b1ef9e7a9efb862e13b466923da30126c0c8171
Dec 01 14:38:41.509 INFO running `"docker" "start" "-a" "34396e51382e01b779cc4f0d4b1ef9e7a9efb862e13b466923da30126c0c8171"`
Dec 01 14:38:43.327 INFO [stderr] usermod: no changes
Dec 01 14:38:43.579 INFO [stderr]    Compiling syn v0.14.5
Dec 01 14:38:43.591 INFO [stderr]    Compiling num-complex v0.2.0
Dec 01 14:38:43.603 INFO [stderr]    Compiling num-bigint v0.2.0
Dec 01 14:38:43.603 INFO [stderr]    Compiling num-iter v0.1.37
Dec 01 14:38:50.723 INFO [stderr]    Compiling num-rational v0.2.1
Dec 01 14:38:54.075 INFO [stderr]    Compiling num v0.2.0
Dec 01 14:39:02.995 INFO [stderr]    Compiling synstructure v0.9.0
Dec 01 14:39:02.995 INFO [stderr]    Compiling num-derive v0.2.2
Dec 01 14:39:09.899 INFO [stderr]    Compiling failure_derive v0.1.2
Dec 01 14:39:13.460 INFO [stderr]    Compiling failure v0.1.2
Dec 01 14:39:14.571 INFO [stderr]    Compiling chess v0.1.0 (/source)
Dec 01 14:39:15.619 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 14:39:15.619 INFO [stderr]  --> src/main.rs:1:1
Dec 01 14:39:15.619 INFO [stderr]   |
Dec 01 14:39:15.619 INFO [stderr] 1 | #![feature(generators, generator_trait)]
Dec 01 14:39:15.619 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 14:39:15.619 INFO [stderr] 
Dec 01 14:39:15.621 INFO [stderr] error: aborting due to previous error
Dec 01 14:39:15.621 INFO [stderr] 
Dec 01 14:39:15.621 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 01 14:39:15.639 INFO [stderr] error: Could not compile `chess`.
Dec 01 14:39:15.639 INFO [stderr] 
Dec 01 14:39:15.639 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 14:39:15.641 INFO [stderr] su: No module specific data is present
Dec 01 14:39:16.510 INFO running `"docker" "inspect" "34396e51382e01b779cc4f0d4b1ef9e7a9efb862e13b466923da30126c0c8171"`
Dec 01 14:39:16.917 INFO running `"docker" "rm" "-f" "34396e51382e01b779cc4f0d4b1ef9e7a9efb862e13b466923da30126c0c8171"`
Dec 01 14:39:17.266 INFO [stdout] 34396e51382e01b779cc4f0d4b1ef9e7a9efb862e13b466923da30126c0c8171
