[INFO] fetching crate zookeeper 0.5.9...
[INFO] checking zookeeper-0.5.9 against beta for pr-78714
[INFO] extracting crate zookeeper 0.5.9 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate zookeeper 0.5.9 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zookeeper 0.5.9
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate zookeeper 0.5.9
[INFO] tweaked toml for crates.io crate zookeeper 0.5.9 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate zookeeper 0.5.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other test targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a test target:
[INFO] [stderr] 
[INFO] [stderr] * /workspace/builds/worker-6/source/tests/test_recursive.rs
[INFO] [stderr] * /workspace/builds/worker-6/source/tests/test_cache.rs
[INFO] [stderr] * /workspace/builds/worker-6/source/tests/test_zk.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autotests = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ca758a852d356ad7c86498d3d0a03e83b6ae2c554235fbbfc34598ba236e079d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ca758a852d356ad7c86498d3d0a03e83b6ae2c554235fbbfc34598ba236e079d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca758a852d356ad7c86498d3d0a03e83b6ae2c554235fbbfc34598ba236e079d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca758a852d356ad7c86498d3d0a03e83b6ae2c554235fbbfc34598ba236e079d", kill_on_drop: false }`
[INFO] [stdout] ca758a852d356ad7c86498d3d0a03e83b6ae2c554235fbbfc34598ba236e079d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5a209fb713fc68363006cf1d3f167ca78bee0c0a1aeb4aaa19245a34f3cf51ea
[INFO] running `Command { std: "docker" "start" "-a" "5a209fb713fc68363006cf1d3f167ca78bee0c0a1aeb4aaa19245a34f3cf51ea", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other test targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a test target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/rustwide/workdir/tests/test_recursive.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/test_cache.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/test_zk.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autotests = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.7
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling zookeeper_derive v0.4.1
[INFO] [stderr]     Checking zookeeper v0.5.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Shutdown`
[INFO] [stdout]   --> src/recipes/cache.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Shutdown,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Shutdown`
[INFO] [stdout]   --> src/recipes/cache.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     Shutdown,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.01s
[INFO] running `Command { std: "docker" "inspect" "5a209fb713fc68363006cf1d3f167ca78bee0c0a1aeb4aaa19245a34f3cf51ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a209fb713fc68363006cf1d3f167ca78bee0c0a1aeb4aaa19245a34f3cf51ea", kill_on_drop: false }`
[INFO] [stdout] 5a209fb713fc68363006cf1d3f167ca78bee0c0a1aeb4aaa19245a34f3cf51ea