Dec 02 09:25:16.100 INFO testing ArdaXi/tahoe-backup against 1.30.1 for beta-1.31-5
Dec 02 09:25:16.100 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 09:25:16.680 INFO [stdout] 8a798995e1b4ba0bca44587a1be7a1f592fba348469366d91018680304d2f83b
Dec 02 09:25:16.687 INFO running `"docker" "start" "-a" "8a798995e1b4ba0bca44587a1be7a1f592fba348469366d91018680304d2f83b"`
Dec 02 09:25:17.971 INFO [stderr] usermod: no changes
Dec 02 09:25:18.256 INFO [stderr]    Compiling seahash v3.0.5
Dec 02 09:25:18.256 INFO [stderr]    Compiling memchr v2.0.1
Dec 02 09:25:18.256 INFO [stderr]    Compiling termios v0.2.2
Dec 02 09:25:18.256 INFO [stderr]    Compiling filetime v0.1.15
Dec 02 09:25:18.256 INFO [stderr]    Compiling clicolors-control v0.2.0
Dec 02 09:25:18.258 INFO [stderr]    Compiling base64 v0.9.0
Dec 02 09:25:18.259 INFO [stderr]    Compiling serde_json v1.0.10
Dec 02 09:25:18.261 INFO [stderr]    Compiling syn v0.11.11
Dec 02 09:25:20.945 INFO [stderr]    Compiling bytes v0.4.6
Dec 02 09:25:21.171 INFO [stderr]    Compiling parking_lot_core v0.2.13
Dec 02 09:25:23.623 INFO [stderr]    Compiling threadpool v1.7.1
Dec 02 09:25:23.815 INFO [stderr]    Compiling libsqlite3-sys v0.9.1
Dec 02 09:25:23.916 INFO [stderr]    Compiling aho-corasick v0.6.4
Dec 02 09:25:30.655 INFO [stderr]    Compiling tokio-io v0.1.5
Dec 02 09:25:30.655 INFO [stderr]    Compiling regex v0.2.6
Dec 02 09:25:30.723 INFO [stderr]    Compiling parking_lot v0.5.4
Dec 02 09:25:37.616 INFO [stderr]    Compiling tokio-core v0.1.12
Dec 02 09:25:53.000 INFO [stderr]    Compiling diesel_derives v1.1.0
Dec 02 09:25:53.001 INFO [stderr]    Compiling serde_derive_internals v0.19.0
Dec 02 09:25:53.047 INFO [stderr]    Compiling derive-error-chain v0.11.0
Dec 02 09:25:56.388 INFO [stderr]    Compiling tokio-proto v0.1.1
Dec 02 09:25:57.464 INFO [stderr]    Compiling console v0.6.1
Dec 02 09:25:57.465 INFO [stderr]    Compiling env_logger v0.5.4
Dec 02 09:25:57.465 INFO [stderr]    Compiling globset v0.3.0
Dec 02 09:26:09.752 INFO [stderr]    Compiling indicatif v0.9.0
Dec 02 09:26:10.529 INFO [stderr]    Compiling serde_derive v1.0.27
Dec 02 09:26:10.815 INFO [stderr]    Compiling hyper v0.11.21
Dec 02 09:26:15.295 INFO [stderr]    Compiling diesel v1.1.1
Dec 02 09:26:19.107 INFO [stderr]    Compiling dotenv v0.11.0
Dec 02 09:26:30.059 INFO [stderr]    Compiling tahoe v0.1.0 (/source/tahoe)
Dec 02 09:26:32.613 INFO [stderr]    Compiling migrations_internals v1.1.0
Dec 02 09:26:34.380 INFO [stderr] error[E0554]: #![feature] may not be used on the stable release channel
Dec 02 09:26:34.380 INFO [stderr]  --> tahoe/src/lib.rs:1:1
Dec 02 09:26:34.380 INFO [stderr]   |
Dec 02 09:26:34.380 INFO [stderr] 1 | #![feature(conservative_impl_trait)]
Dec 02 09:26:34.380 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 02 09:26:34.380 INFO [stderr] 
Dec 02 09:26:34.387 INFO [stderr] error: aborting due to previous error
Dec 02 09:26:34.387 INFO [stderr] 
Dec 02 09:26:34.387 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 09:26:34.392 INFO [stderr] error: Could not compile `tahoe`.
Dec 02 09:26:34.392 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 02 09:26:34.509 INFO [stderr] error: build failed
Dec 02 09:26:34.512 INFO [stderr] su: No module specific data is present
Dec 02 09:26:35.156 INFO running `"docker" "inspect" "8a798995e1b4ba0bca44587a1be7a1f592fba348469366d91018680304d2f83b"`
Dec 02 09:26:35.306 INFO running `"docker" "rm" "-f" "8a798995e1b4ba0bca44587a1be7a1f592fba348469366d91018680304d2f83b"`
Dec 02 09:26:35.493 INFO [stdout] 8a798995e1b4ba0bca44587a1be7a1f592fba348469366d91018680304d2f83b