Dec 01 09:14:29.450 INFO testing milesand/calculator-the-solver against 1.30.1 for beta-1.31-5
Dec 01 09:14:29.450 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 09:14:29.623 INFO [stdout] 31dcfa07faf14b16d08c7c8fd064d9f90a73fb4cb15aaacad077928c63a4732e
Dec 01 09:14:29.626 INFO running `"docker" "start" "-a" "31dcfa07faf14b16d08c7c8fd064d9f90a73fb4cb15aaacad077928c63a4732e"`
Dec 01 09:14:30.228 INFO [stderr] usermod: no changes
Dec 01 09:14:30.319 INFO [stderr]    Compiling rand v0.4.2
Dec 01 09:14:30.319 INFO [stderr]    Compiling memchr v2.0.1
Dec 01 09:14:30.319 INFO [stderr]    Compiling num-complex v0.1.41
Dec 01 09:14:31.623 INFO [stderr]    Compiling aho-corasick v0.6.4
Dec 01 09:14:32.964 INFO [stderr]    Compiling regex v0.2.5
Dec 01 09:14:35.475 INFO [stderr]    Compiling rand v0.3.22
Dec 01 09:14:36.127 INFO [stderr]    Compiling num-bigint v0.1.41
Dec 01 09:14:43.787 INFO [stderr]    Compiling num-rational v0.1.41
Dec 01 09:14:45.579 INFO [stderr]    Compiling num v0.1.41
Dec 01 09:14:45.945 INFO [stderr]    Compiling calculator-the-solver v0.0.1 (/source)
Dec 01 09:14:46.599 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 09:14:46.599 INFO [stderr]  --> src/lib.rs:1:1
Dec 01 09:14:46.599 INFO [stderr]   |
Dec 01 09:14:46.599 INFO [stderr] 1 | #![feature(option_filter)]
Dec 01 09:14:46.599 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 09:14:46.599 INFO [stderr] 
Dec 01 09:14:46.599 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 01 09:14:46.599 INFO [stderr]  --> src/lib.rs:2:1
Dec 01 09:14:46.599 INFO [stderr]   |
Dec 01 09:14:46.599 INFO [stderr] 2 | #![feature(try_from)]
Dec 01 09:14:46.599 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^
Dec 01 09:14:46.599 INFO [stderr] 
Dec 01 09:14:46.599 INFO [stderr] error: aborting due to 2 previous errors
Dec 01 09:14:46.599 INFO [stderr] 
Dec 01 09:14:46.599 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 01 09:14:46.611 INFO [stderr] error: Could not compile `calculator-the-solver`.
Dec 01 09:14:46.611 INFO [stderr] 
Dec 01 09:14:46.611 INFO [stderr] To learn more, run the command again with --verbose.
Dec 01 09:14:46.611 INFO [stderr] su: No module specific data is present
Dec 01 09:14:47.747 INFO running `"docker" "inspect" "31dcfa07faf14b16d08c7c8fd064d9f90a73fb4cb15aaacad077928c63a4732e"`
Dec 01 09:14:48.139 INFO running `"docker" "rm" "-f" "31dcfa07faf14b16d08c7c8fd064d9f90a73fb4cb15aaacad077928c63a4732e"`
Dec 01 09:14:48.522 INFO [stdout] 31dcfa07faf14b16d08c7c8fd064d9f90a73fb4cb15aaacad077928c63a4732e
