[INFO] updating cached repository sadkovoy/protego
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/sadkovoy/protego
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/sadkovoy/protego" "work/ex/beta-1.38-1/sources/1.37.0/gh/sadkovoy/protego"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/sadkovoy/protego'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/sadkovoy/protego" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sadkovoy/protego"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sadkovoy/protego'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 659027e2f31e223b20760b3b13064c1d0592389a
[INFO] sha for GitHub repo sadkovoy/protego: 659027e2f31e223b20760b3b13064c1d0592389a
[INFO] validating manifest of sadkovoy/protego on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of sadkovoy/protego on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing sadkovoy/protego
[INFO] finished frobbing sadkovoy/protego
[INFO] frobbed toml for sadkovoy/protego written to work/ex/beta-1.38-1/sources/1.37.0/gh/sadkovoy/protego/Cargo.toml
[INFO] started frobbing sadkovoy/protego
[INFO] finished frobbing sadkovoy/protego
[INFO] frobbed toml for sadkovoy/protego written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/sadkovoy/protego/Cargo.toml
[INFO] crate sadkovoy/protego already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing sadkovoy/protego against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/sadkovoy/protego:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 60f415671143425ae1d9ed07f5b4d1da42939f17c5a5e199aab569616d6fcfcf
[INFO] running `"docker" "start" "-a" "60f415671143425ae1d9ed07f5b4d1da42939f17c5a5e199aab569616d6fcfcf"`
[INFO] [stderr]    Compiling actix-web v0.7.13
[INFO] [stderr]    Compiling backoff v0.1.2
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]    Compiling syn v0.15.16
[INFO] [stderr]    Compiling redis-async v0.4.3
[INFO] [stderr] error[E0283]: type annotations required: cannot resolve `std::string::String: std::convert::AsRef<_>`
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/redis-async-0.4.3/src/client/pubsub.rs:293:41
[INFO] [stderr]     |
[INFO] [stderr] 293 |         self.con.unsubscribe(self.topic.as_ref());
[INFO] [stderr]     |                                         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0283`.
[INFO] [stderr] error: Could not compile `redis-async`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "60f415671143425ae1d9ed07f5b4d1da42939f17c5a5e199aab569616d6fcfcf"`
[INFO] running `"docker" "rm" "-f" "60f415671143425ae1d9ed07f5b4d1da42939f17c5a5e199aab569616d6fcfcf"`
[INFO] [stdout] 60f415671143425ae1d9ed07f5b4d1da42939f17c5a5e199aab569616d6fcfcf