Dec 15 00:23:49.983 INFO testing r2d2-memcache-0.1.1 against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 15 00:23:49.983 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 00:23:50.328 INFO [stdout] c6a380fd328a1554a27b6ec6d99dc9460e3c4f9edc93ff4336e332aac6caaa88
Dec 15 00:23:50.330 INFO running `"docker" "start" "-a" "c6a380fd328a1554a27b6ec6d99dc9460e3c4f9edc93ff4336e332aac6caaa88"`
Dec 15 00:23:51.243 INFO [stderr] usermod: no changes
Dec 15 00:23:51.299 INFO [stderr]    Compiling r2d2 v0.7.4
Dec 15 00:23:51.299 INFO [stderr]    Compiling memcache v0.7.1
Dec 15 00:23:53.065 INFO [stderr]    Compiling r2d2-memcache v0.1.1 (/source)
Dec 15 00:23:54.169 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.90s
Dec 15 00:23:54.172 INFO [stderr] su: No module specific data is present
Dec 15 00:23:54.384 INFO running `"docker" "inspect" "c6a380fd328a1554a27b6ec6d99dc9460e3c4f9edc93ff4336e332aac6caaa88"`
Dec 15 00:23:54.547 INFO running `"docker" "rm" "-f" "c6a380fd328a1554a27b6ec6d99dc9460e3c4f9edc93ff4336e332aac6caaa88"`
Dec 15 00:23:54.715 INFO [stdout] c6a380fd328a1554a27b6ec6d99dc9460e3c4f9edc93ff4336e332aac6caaa88
Dec 15 00:23:54.718 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-3/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 00:23:54.878 INFO [stdout] 8f4d6c95219a6d32e1239ce99363aee86995c18a533e0222e359c7842b6d2c78
Dec 15 00:23:54.881 INFO running `"docker" "start" "-a" "8f4d6c95219a6d32e1239ce99363aee86995c18a533e0222e359c7842b6d2c78"`
Dec 15 00:23:56.009 INFO [stderr] usermod: no changes
Dec 15 00:23:56.082 INFO [stderr]    Compiling r2d2-memcache v0.1.1 (/source)
Dec 15 00:23:58.067 INFO [stderr] warning: unused variable: `pool`
Dec 15 00:23:58.067 INFO [stderr]   --> tests/test_connection.rs:12:9
Dec 15 00:23:58.067 INFO [stderr]    |
Dec 15 00:23:58.067 INFO [stderr] 12 |     let pool = r2d2::Pool::new(config, manager).unwrap();
Dec 15 00:23:58.067 INFO [stderr]    |         ^^^^ help: consider using `_pool` instead
Dec 15 00:23:58.067 INFO [stderr]    |
Dec 15 00:23:58.067 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 15 00:23:58.067 INFO [stderr] 
Dec 15 00:24:01.306 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.28s
Dec 15 00:24:01.312 INFO [stderr] su: No module specific data is present
Dec 15 00:24:02.119 INFO running `"docker" "inspect" "8f4d6c95219a6d32e1239ce99363aee86995c18a533e0222e359c7842b6d2c78"`
Dec 15 00:24:02.345 INFO running `"docker" "rm" "-f" "8f4d6c95219a6d32e1239ce99363aee86995c18a533e0222e359c7842b6d2c78"`
Dec 15 00:24:02.507 INFO [stdout] 8f4d6c95219a6d32e1239ce99363aee86995c18a533e0222e359c7842b6d2c78