Dec 15 00:23:48.730 INFO testing r2d2-memcache-0.1.1 against try#aa49d8ef14939ddec0e34b346b60174a5673d48f for pr-56550
Dec 15 00:23:48.730 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 15 00:23:48.968 INFO [stdout] 531675305a8b55da6c99cf1bbd2c1eac70653e98d1beb5a8403682c1d8b70090
Dec 15 00:23:48.970 INFO running `"docker" "start" "-a" "531675305a8b55da6c99cf1bbd2c1eac70653e98d1beb5a8403682c1d8b70090"`
Dec 15 00:23:50.094 INFO [stderr] usermod: no changes
Dec 15 00:23:50.167 INFO [stderr]    Compiling r2d2 v0.7.4
Dec 15 00:23:50.168 INFO [stderr]    Compiling memcache v0.7.1
Dec 15 00:23:52.291 INFO [stderr]    Compiling r2d2-memcache v0.1.1 (/source)
Dec 15 00:23:53.578 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.46s
Dec 15 00:23:53.582 INFO [stderr] su: No module specific data is present
Dec 15 00:23:53.864 INFO running `"docker" "inspect" "531675305a8b55da6c99cf1bbd2c1eac70653e98d1beb5a8403682c1d8b70090"`
Dec 15 00:23:53.944 INFO running `"docker" "rm" "-f" "531675305a8b55da6c99cf1bbd2c1eac70653e98d1beb5a8403682c1d8b70090"`
Dec 15 00:23:54.004 INFO [stdout] 531675305a8b55da6c99cf1bbd2c1eac70653e98d1beb5a8403682c1d8b70090
Dec 15 00:23:54.006 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/try#aa49d8ef14939ddec0e34b346b60174a5673d48f:/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 +aa49d8ef14939ddec0e34b346b60174a5673d48f-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 15 00:23:54.202 INFO [stdout] 7e464ad9ab8df9805fca2c8c737bf8fb5c0ec2e9b8a1b09655c11b1a838e6b56
Dec 15 00:23:54.204 INFO running `"docker" "start" "-a" "7e464ad9ab8df9805fca2c8c737bf8fb5c0ec2e9b8a1b09655c11b1a838e6b56"`
Dec 15 00:23:54.817 INFO [stderr] usermod: no changes
Dec 15 00:23:54.864 INFO [stderr]    Compiling r2d2-memcache v0.1.1 (/source)
Dec 15 00:23:57.971 INFO [stderr] warning: unused variable: `pool`
Dec 15 00:23:57.971 INFO [stderr]   --> tests/test_connection.rs:12:9
Dec 15 00:23:57.971 INFO [stderr]    |
Dec 15 00:23:57.971 INFO [stderr] 12 |     let pool = r2d2::Pool::new(config, manager).unwrap();
Dec 15 00:23:57.971 INFO [stderr]    |         ^^^^ help: consider using `_pool` instead
Dec 15 00:23:58.013 INFO [stderr]    |
Dec 15 00:23:58.013 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 15 00:23:58.013 INFO [stderr] 
Dec 15 00:24:00.216 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.38s
Dec 15 00:24:00.216 INFO [stderr] su: No module specific data is present
Dec 15 00:24:00.844 INFO running `"docker" "inspect" "7e464ad9ab8df9805fca2c8c737bf8fb5c0ec2e9b8a1b09655c11b1a838e6b56"`
Dec 15 00:24:01.012 INFO running `"docker" "rm" "-f" "7e464ad9ab8df9805fca2c8c737bf8fb5c0ec2e9b8a1b09655c11b1a838e6b56"`
Dec 15 00:24:01.274 INFO [stdout] 7e464ad9ab8df9805fca2c8c737bf8fb5c0ec2e9b8a1b09655c11b1a838e6b56