[INFO] updating cached repository myhyh/myblog-backend
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/myhyh/myblog-backend
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/myhyh/myblog-backend" "work/ex/beta-1.37-6/sources/1.36.0/gh/myhyh/myblog-backend"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/myhyh/myblog-backend'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/myhyh/myblog-backend" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/myhyh/myblog-backend"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/myhyh/myblog-backend'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6a0abc84837c6653c80a029deca5611b9b0c88eb
[INFO] sha for GitHub repo myhyh/myblog-backend: 6a0abc84837c6653c80a029deca5611b9b0c88eb
[INFO] validating manifest of myhyh/myblog-backend on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of myhyh/myblog-backend on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing myhyh/myblog-backend
[INFO] finished frobbing myhyh/myblog-backend
[INFO] frobbed toml for myhyh/myblog-backend written to work/ex/beta-1.37-6/sources/1.36.0/gh/myhyh/myblog-backend/Cargo.toml
[INFO] started frobbing myhyh/myblog-backend
[INFO] finished frobbing myhyh/myblog-backend
[INFO] frobbed toml for myhyh/myblog-backend written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/myhyh/myblog-backend/Cargo.toml
[INFO] crate myhyh/myblog-backend already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing myhyh/myblog-backend against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/myhyh/myblog-backend:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 637238d6634d87f488a61965488ec7473a489b04e307916321ac69d4e955ab4d
[INFO] running `"docker" "start" "-a" "637238d6634d87f488a61965488ec7473a489b04e307916321ac69d4e955ab4d"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling futures v0.1.26
[INFO] [stderr]    Compiling v_escape v0.7.2
[INFO] [stderr]    Compiling actix-web v0.7.19
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling miniz-sys v0.1.11
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling mysqlclient-sys v0.2.4
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling signal-hook-registry v1.0.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling socket2 v0.3.8
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling resolv-conf v0.6.2
[INFO] [stderr]    Compiling signal-hook v0.1.9
[INFO] [stderr]    Compiling tokio-sync v0.1.5
[INFO] [stderr]    Compiling tokio-executor v0.1.7
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling tower-service v0.1.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling serde_urlencoded v0.5.5
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling flate2 v1.0.7
[INFO] [stderr]    Compiling tokio-threadpool v0.1.14
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling tokio-timer v0.2.10
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-async-await v0.1.7
[INFO] [stderr] error[E0432]: unresolved import `std::await`
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-async-await-0.1.7/src/lib.rs:35:9
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub use std::await as std_await;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^ no `await` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-async-await-0.1.7/src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(rust_2018_preview, async_await, await_macro, futures_api)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling h2 v0.1.18
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr] error: Could not compile `tokio-async-await`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "637238d6634d87f488a61965488ec7473a489b04e307916321ac69d4e955ab4d"`
[INFO] running `"docker" "rm" "-f" "637238d6634d87f488a61965488ec7473a489b04e307916321ac69d4e955ab4d"`
[INFO] [stdout] 637238d6634d87f488a61965488ec7473a489b04e307916321ac69d4e955ab4d