Dec 18 15:50:33.881 INFO checking google-cloudtasks2_beta2-1.0.8+20180913 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 15:50:33.881 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/google-cloudtasks2_beta2/1.0.8+20180913:/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=forbid" "-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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 15:50:34.405 INFO [stdout] 6b21a9647fd045c92e87d014febcd1c38cf134b9f62cb835da49c9eaa2a62aec
Dec 18 15:50:34.407 INFO running `"docker" "start" "-a" "6b21a9647fd045c92e87d014febcd1c38cf134b9f62cb835da49c9eaa2a62aec"`
Dec 18 15:50:36.422 INFO [stderr]     Checking google-cloudtasks2_beta2 v1.0.8+20180913 (/opt/crater/workdir)
Dec 18 15:50:40.556 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 15:50:40.556 INFO [stderr]    --> src/cmn.rs:344:46
Dec 18 15:50:40.556 INFO [stderr]     |
Dec 18 15:50:40.556 INFO [stderr] 344 |             Error::HttpError(ref err) => err.cause(),
Dec 18 15:50:40.556 INFO [stderr]     |                                              ^^^^^
Dec 18 15:50:40.556 INFO [stderr]     |
Dec 18 15:50:40.556 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 18 15:50:40.556 INFO [stderr] 
Dec 18 15:50:40.556 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 15:50:40.556 INFO [stderr]    --> src/cmn.rs:345:55
Dec 18 15:50:40.556 INFO [stderr]     |
Dec 18 15:50:40.556 INFO [stderr] 345 |             Error::JsonDecodeError(_, ref err) => err.cause(),
Dec 18 15:50:40.556 INFO [stderr]     |                                                       ^^^^^
Dec 18 15:50:40.556 INFO [stderr] 
Dec 18 15:50:40.992 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 15:50:40.992 INFO [stderr]    --> src/cmn.rs:344:46
Dec 18 15:50:40.992 INFO [stderr]     |
Dec 18 15:50:40.993 INFO [stderr] 344 |             Error::HttpError(ref err) => err.cause(),
Dec 18 15:50:40.993 INFO [stderr]     |                                              ^^^^^
Dec 18 15:50:40.993 INFO [stderr]     |
Dec 18 15:50:40.993 INFO [stderr]     = note: #[warn(deprecated)] on by default
Dec 18 15:50:40.993 INFO [stderr] 
Dec 18 15:50:40.994 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 15:50:40.994 INFO [stderr]    --> src/cmn.rs:345:55
Dec 18 15:50:40.994 INFO [stderr]     |
Dec 18 15:50:40.994 INFO [stderr] 345 |             Error::JsonDecodeError(_, ref err) => err.cause(),
Dec 18 15:50:40.994 INFO [stderr]     |                                                       ^^^^^
Dec 18 15:50:40.994 INFO [stderr] 
Dec 18 15:50:42.810 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.52s
Dec 18 15:50:43.666 INFO running `"docker" "inspect" "6b21a9647fd045c92e87d014febcd1c38cf134b9f62cb835da49c9eaa2a62aec"`
Dec 18 15:50:44.030 INFO running `"docker" "rm" "-f" "6b21a9647fd045c92e87d014febcd1c38cf134b9f62cb835da49c9eaa2a62aec"`
Dec 18 15:50:44.444 INFO [stdout] 6b21a9647fd045c92e87d014febcd1c38cf134b9f62cb835da49c9eaa2a62aec