Dec 02 15:07:57.378 INFO testing stutter-rs-0.1.1 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 15:07:57.378 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt 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 15:07:57.832 INFO [stdout] 569a96542316d4761cb08581ffea5abea13efa75fe8aa8437a4dc9a964ebd3f6
Dec 02 15:07:57.836 INFO running `"docker" "start" "-a" "569a96542316d4761cb08581ffea5abea13efa75fe8aa8437a4dc9a964ebd3f6"`
Dec 02 15:07:58.939 INFO [stderr] usermod: no changes
Dec 02 15:07:58.991 INFO [stderr] warning: only one of `license` or `license-file` is necessary
Dec 02 15:07:59.011 INFO [stderr]    Compiling cactus v1.0.3
Dec 02 15:07:59.018 INFO [stderr]    Compiling memchr v2.1.1
Dec 02 15:08:01.108 INFO [stderr]    Compiling nom v4.1.1
Dec 02 15:08:04.679 INFO [stderr]    Compiling stutter-rs v0.1.1 (/source)
Dec 02 15:08:05.451 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 15:08:05.451 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 15:08:05.451 INFO [stderr]   |
Dec 02 15:08:05.451 INFO [stderr] 1 | #![feature(box_syntax, box_patterns, fn_traits, nll, iterator_step_by)]
Dec 02 15:08:05.451 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 15:08:05.451 INFO [stderr] 
Dec 02 15:08:05.459 INFO [stderr] error: aborting due to previous error
Dec 02 15:08:05.459 INFO [stderr] 
Dec 02 15:08:05.459 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 15:08:05.463 INFO [stderr] error: Could not compile `stutter-rs`.
Dec 02 15:08:05.463 INFO [stderr] 
Dec 02 15:08:05.463 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 15:08:05.463 INFO [stderr] su: No module specific data is present
Dec 02 15:08:06.143 INFO running `"docker" "inspect" "569a96542316d4761cb08581ffea5abea13efa75fe8aa8437a4dc9a964ebd3f6"`
Dec 02 15:08:06.423 INFO running `"docker" "rm" "-f" "569a96542316d4761cb08581ffea5abea13efa75fe8aa8437a4dc9a964ebd3f6"`
Dec 02 15:08:06.838 INFO [stdout] 569a96542316d4761cb08581ffea5abea13efa75fe8aa8437a4dc9a964ebd3f6