Dec 02 09:56:54.276 INFO testing 29rou/c-som against 1.30.1 for beta-1.31-5
Dec 02 09:56:54.276 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-4/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 09:56:54.731 INFO [stdout] b25be0ed2cb50465b4c297976cc965200ac7bf0882f6e346c83bb3c512ad2f7c
Dec 02 09:56:54.733 INFO running `"docker" "start" "-a" "b25be0ed2cb50465b4c297976cc965200ac7bf0882f6e346c83bb3c512ad2f7c"`
Dec 02 09:56:56.015 INFO [stderr] usermod: no changes
Dec 02 09:56:56.071 INFO [stderr] warning: `panic` setting is ignored for `test` profile
Dec 02 09:56:56.115 INFO [stderr]    Compiling libc v0.2.40
Dec 02 09:56:56.115 INFO [stderr]    Compiling num-traits v0.2.2
Dec 02 09:56:56.115 INFO [stderr]    Compiling typenum v1.10.0
Dec 02 09:56:56.115 INFO [stderr]    Compiling rustc-serialize v0.3.24
Dec 02 09:56:56.119 INFO [stderr]    Compiling either v1.5.0
Dec 02 09:56:56.844 INFO [stderr]    Compiling itertools v0.7.8
Dec 02 09:57:01.647 INFO [stderr]    Compiling rand v0.4.2
Dec 02 09:57:02.266 INFO [stderr]    Compiling num-integer v0.1.36
Dec 02 09:57:04.599 INFO [stderr]    Compiling num-iter v0.1.35
Dec 02 09:57:06.227 INFO [stderr]    Compiling generic-array v0.11.0
Dec 02 09:57:09.203 INFO [stderr]    Compiling num-bigint v0.1.43
Dec 02 09:57:09.203 INFO [stderr]    Compiling num-complex v0.1.43
Dec 02 09:57:12.336 INFO [stderr]    Compiling num-rational v0.1.42
Dec 02 09:57:14.287 INFO [stderr]    Compiling num v0.1.42
Dec 02 09:57:15.006 INFO [stderr]    Compiling c-som v0.1.0 (/source)
Dec 02 09:57:17.160 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 09:57:17.160 INFO [stderr]  --> src/main.rs:1:1
Dec 02 09:57:17.160 INFO [stderr]   |
Dec 02 09:57:17.160 INFO [stderr] 1 | #![feature(core_intrinsics)]
Dec 02 09:57:17.160 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:57:17.160 INFO [stderr] 
Dec 02 09:57:17.160 INFO [stderr] error: aborting due to previous error
Dec 02 09:57:17.160 INFO [stderr] 
Dec 02 09:57:17.160 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 09:57:17.167 INFO [stderr] error: Could not compile `c-som`.
Dec 02 09:57:17.167 INFO [stderr] 
Dec 02 09:57:17.167 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 09:57:17.169 INFO [stderr] su: No module specific data is present
Dec 02 09:57:17.481 INFO running `"docker" "inspect" "b25be0ed2cb50465b4c297976cc965200ac7bf0882f6e346c83bb3c512ad2f7c"`
Dec 02 09:57:17.608 INFO running `"docker" "rm" "-f" "b25be0ed2cb50465b4c297976cc965200ac7bf0882f6e346c83bb3c512ad2f7c"`
Dec 02 09:57:17.735 INFO [stdout] b25be0ed2cb50465b4c297976cc965200ac7bf0882f6e346c83bb3c512ad2f7c