Dec 02 17:41:40.732 INFO testing searchspot-0.16.0 against 1.30.1 for beta-1.31-5
Dec 02 17:41:40.733 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 02 17:41:41.291 INFO [stdout] 3e86f7f39e5c32b3cbd1b6ad89d5769f0666c8a7a4cf26d26d7135cc538db1d9
Dec 02 17:41:41.293 INFO running `"docker" "start" "-a" "3e86f7f39e5c32b3cbd1b6ad89d5769f0666c8a7a4cf26d26d7135cc538db1d9"`
Dec 02 17:41:42.332 INFO [stderr] usermod: no changes
Dec 02 17:41:42.723 INFO [stderr]    Compiling rustc-hex v1.0.0
Dec 02 17:41:42.734 INFO [stderr]    Compiling memchr v1.0.2
Dec 02 17:41:42.739 INFO [stderr]    Compiling generic-array v0.7.3
Dec 02 17:41:42.742 INFO [stderr]    Compiling twoway v0.1.8
Dec 02 17:41:42.744 INFO [stderr]    Compiling num-bigint v0.1.44
Dec 02 17:41:42.746 INFO [stderr]    Compiling chrono v0.4.6
Dec 02 17:41:42.748 INFO [stderr]    Compiling backtrace v0.2.3
Dec 02 17:41:42.750 INFO [stderr]    Compiling hyper-openssl v0.2.7
Dec 02 17:41:44.151 INFO [stderr]    Compiling digest-buffer v0.3.1
Dec 02 17:41:44.843 INFO [stderr]    Compiling digest v0.5.2
Dec 02 17:41:44.887 INFO [stderr]    Compiling crypto-mac v0.3.0
Dec 02 17:41:45.867 INFO [stderr]    Compiling sha2 v0.5.3
Dec 02 17:41:45.887 INFO [stderr]    Compiling sha-1 v0.3.4
Dec 02 17:41:45.887 INFO [stderr]    Compiling hmac v0.1.1
Dec 02 17:41:45.903 INFO [stderr]    Compiling buf_redux v0.6.3
Dec 02 17:41:46.745 INFO [stderr]    Compiling iron v0.6.0
Dec 02 17:41:48.209 INFO [stderr]    Compiling oath v0.10.2
Dec 02 17:41:49.439 INFO [stderr]    Compiling multipart v0.13.6
Dec 02 17:41:52.771 INFO [stderr]    Compiling num-rational v0.1.42
Dec 02 17:41:53.403 INFO [stderr]    Compiling rs-es v0.10.5
Dec 02 17:41:53.403 INFO [stderr]    Compiling rollbar v0.4.0
Dec 02 17:41:57.827 INFO [stderr]    Compiling persistent v0.4.0
Dec 02 17:41:57.835 INFO [stderr]    Compiling router v0.6.0
Dec 02 17:41:57.875 INFO [stderr]    Compiling logger v0.4.0
Dec 02 17:41:59.485 INFO [stderr]    Compiling num v0.1.42
Dec 02 17:42:06.471 INFO [stderr]    Compiling bodyparser v0.8.0
Dec 02 17:42:11.856 INFO [stderr]    Compiling urlencoded v0.6.0
Dec 02 17:42:18.503 INFO [stderr]    Compiling params v0.8.0
Dec 02 17:42:24.771 INFO [stderr]    Compiling searchspot v0.16.0 (/source)
Dec 02 17:42:32.721 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 17:42:32.721 INFO [stderr]  --> src/lib.rs:1:1
Dec 02 17:42:32.721 INFO [stderr]   |
Dec 02 17:42:32.721 INFO [stderr] 1 | #![feature(conservative_impl_trait, iterator_for_each)]
Dec 02 17:42:32.721 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 17:42:32.721 INFO [stderr] 
Dec 02 17:42:32.729 INFO [stderr] error: aborting due to previous error
Dec 02 17:42:32.729 INFO [stderr] 
Dec 02 17:42:32.729 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 17:42:32.759 INFO [stderr] error: Could not compile `searchspot`.
Dec 02 17:42:32.759 INFO [stderr] 
Dec 02 17:42:32.759 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 17:42:32.760 INFO [stderr] su: No module specific data is present
Dec 02 17:42:33.122 INFO running `"docker" "inspect" "3e86f7f39e5c32b3cbd1b6ad89d5769f0666c8a7a4cf26d26d7135cc538db1d9"`
Dec 02 17:42:33.210 INFO running `"docker" "rm" "-f" "3e86f7f39e5c32b3cbd1b6ad89d5769f0666c8a7a4cf26d26d7135cc538db1d9"`
Dec 02 17:42:33.337 INFO [stdout] 3e86f7f39e5c32b3cbd1b6ad89d5769f0666c8a7a4cf26d26d7135cc538db1d9