Dec 05 03:47:50.425 INFO checking zookeeper-0.5.5 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 03:47:50.425 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-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 05 03:47:50.890 INFO [stdout] 17d70b3df47f326f8744ec3940a335dc57481abf0b1a659be94f5fe949ace51f
Dec 05 03:47:50.892 INFO running `"docker" "start" "-a" "17d70b3df47f326f8744ec3940a335dc57481abf0b1a659be94f5fe949ace51f"`
Dec 05 03:47:52.486 INFO [stderr] usermod: no changes
Dec 05 03:47:52.535 INFO [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
Dec 05 03:47:52.535 INFO [stderr] disables Cargo from automatically inferring other test targets.
Dec 05 03:47:52.535 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 05 03:47:52.535 INFO [stderr] files will be included as a test target:
Dec 05 03:47:52.535 INFO [stderr] 
Dec 05 03:47:52.535 INFO [stderr] * /source/tests/test_recursive.rs
Dec 05 03:47:52.535 INFO [stderr] * /source/tests/test_cache.rs
Dec 05 03:47:52.535 INFO [stderr] * /source/tests/test_zk.rs
Dec 05 03:47:52.535 INFO [stderr] 
Dec 05 03:47:52.535 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 05 03:47:52.535 INFO [stderr] ready to be compiled as a test target today. You can future-proof yourself
Dec 05 03:47:52.535 INFO [stderr] and disable this warning by adding `autotests = false` to your [package]
Dec 05 03:47:52.535 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 05 03:47:52.535 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 05 03:47:52.535 INFO [stderr] 
Dec 05 03:47:52.535 INFO [stderr] For more information on this warning you can consult
Dec 05 03:47:52.535 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 05 03:47:52.699 INFO [stderr]    Compiling proc-macro2 v0.4.24
Dec 05 03:47:52.743 INFO [stderr]     Checking mio-extras v2.0.5
Dec 05 03:47:52.751 INFO [stderr]     Checking env_logger v0.5.13
Dec 05 03:47:58.831 INFO [stderr]    Compiling quote v0.6.10
Dec 05 03:48:00.185 INFO [stderr]    Compiling syn v0.14.9
Dec 05 03:48:09.284 INFO [stderr]    Compiling zookeeper_derive v0.4.0
Dec 05 03:48:11.163 INFO [stderr]     Checking zookeeper v0.5.5 (/source)
Dec 05 03:48:12.751 INFO [stderr] warning: variant is never constructed: `Shutdown`
Dec 05 03:48:12.751 INFO [stderr]   --> src/recipes/cache.rs:41:5
Dec 05 03:48:12.751 INFO [stderr]    |
Dec 05 03:48:12.751 INFO [stderr] 41 |     Shutdown,
Dec 05 03:48:12.751 INFO [stderr]    |     ^^^^^^^^
Dec 05 03:48:12.751 INFO [stderr]    |
Dec 05 03:48:12.751 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 03:48:12.751 INFO [stderr] 
Dec 05 03:48:13.023 INFO [stderr] warning: variant is never constructed: `Shutdown`
Dec 05 03:48:13.023 INFO [stderr]   --> src/recipes/cache.rs:41:5
Dec 05 03:48:13.023 INFO [stderr]    |
Dec 05 03:48:13.023 INFO [stderr] 41 |     Shutdown,
Dec 05 03:48:13.023 INFO [stderr]    |     ^^^^^^^^
Dec 05 03:48:13.023 INFO [stderr]    |
Dec 05 03:48:13.023 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 03:48:13.023 INFO [stderr] 
Dec 05 03:48:15.664 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.15s
Dec 05 03:48:15.671 INFO [stderr] su: No module specific data is present
Dec 05 03:48:16.934 INFO running `"docker" "inspect" "17d70b3df47f326f8744ec3940a335dc57481abf0b1a659be94f5fe949ace51f"`
Dec 05 03:48:17.321 INFO running `"docker" "rm" "-f" "17d70b3df47f326f8744ec3940a335dc57481abf0b1a659be94f5fe949ace51f"`
Dec 05 03:48:17.641 INFO [stdout] 17d70b3df47f326f8744ec3940a335dc57481abf0b1a659be94f5fe949ace51f