Dec 18 12:37:50.696 INFO checking r2d2-memcache-0.1.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 12:37:50.696 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/r2d2-memcache/0.1.1:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 12:37:50.955 INFO [stdout] 300da352c7b157f8a926696df2471bc16339f4e7e26b728d79b09cde5d960687
Dec 18 12:37:50.962 INFO running `"docker" "start" "-a" "300da352c7b157f8a926696df2471bc16339f4e7e26b728d79b09cde5d960687"`
Dec 18 12:37:51.692 INFO [stderr]     Checking memcache v0.7.1
Dec 18 12:37:52.258 INFO [stderr]     Checking r2d2-memcache v0.1.1 (/opt/crater/workdir)
Dec 18 12:37:52.652 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 12:37:52.652 INFO [stderr]   --> src/error.rs:16:20
Dec 18 12:37:52.652 INFO [stderr]    |
Dec 18 12:37:52.652 INFO [stderr] 16 |         match self.cause() {
Dec 18 12:37:52.652 INFO [stderr]    |                    ^^^^^
Dec 18 12:37:52.652 INFO [stderr]    |
Dec 18 12:37:52.652 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 12:37:52.652 INFO [stderr] 
Dec 18 12:37:52.652 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 12:37:52.652 INFO [stderr]   --> src/error.rs:32:42
Dec 18 12:37:52.652 INFO [stderr]    |
Dec 18 12:37:52.652 INFO [stderr] 32 |             Error::Other(ref err) => err.cause()
Dec 18 12:37:52.652 INFO [stderr]    |                                          ^^^^^
Dec 18 12:37:52.652 INFO [stderr] 
Dec 18 12:37:52.660 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 12:37:52.660 INFO [stderr]   --> src/error.rs:16:20
Dec 18 12:37:52.660 INFO [stderr]    |
Dec 18 12:37:52.660 INFO [stderr] 16 |         match self.cause() {
Dec 18 12:37:52.660 INFO [stderr]    |                    ^^^^^
Dec 18 12:37:52.660 INFO [stderr]    |
Dec 18 12:37:52.660 INFO [stderr]    = note: #[warn(deprecated)] on by default
Dec 18 12:37:52.660 INFO [stderr] 
Dec 18 12:37:52.661 INFO [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
Dec 18 12:37:52.661 INFO [stderr]   --> src/error.rs:32:42
Dec 18 12:37:52.661 INFO [stderr]    |
Dec 18 12:37:52.661 INFO [stderr] 32 |             Error::Other(ref err) => err.cause()
Dec 18 12:37:52.661 INFO [stderr]    |                                          ^^^^^
Dec 18 12:37:52.661 INFO [stderr] 
Dec 18 12:37:53.144 INFO [stderr] warning: unused variable: `pool`
Dec 18 12:37:53.144 INFO [stderr]   --> tests/test_connection.rs:12:9
Dec 18 12:37:53.144 INFO [stderr]    |
Dec 18 12:37:53.144 INFO [stderr] 12 |     let pool = r2d2::Pool::new(config, manager).unwrap();
Dec 18 12:37:53.144 INFO [stderr]    |         ^^^^ help: consider using `_pool` instead
Dec 18 12:37:53.144 INFO [stderr]    |
Dec 18 12:37:53.144 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 18 12:37:53.144 INFO [stderr] 
Dec 18 12:37:53.297 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.64s
Dec 18 12:37:53.550 INFO running `"docker" "inspect" "300da352c7b157f8a926696df2471bc16339f4e7e26b728d79b09cde5d960687"`
Dec 18 12:37:53.666 INFO running `"docker" "rm" "-f" "300da352c7b157f8a926696df2471bc16339f4e7e26b728d79b09cde5d960687"`
Dec 18 12:37:53.752 INFO [stdout] 300da352c7b157f8a926696df2471bc16339f4e7e26b728d79b09cde5d960687