[INFO] crate zmq-rs 0.1.8 is already in cache
[INFO] testing zmq-rs-0.1.8 against 1.38.0 for beta-1.39-1
[INFO] extracting crate zmq-rs 0.1.8 into work/builds/worker-11/source
[INFO] validating manifest of crates.io crate zmq-rs 0.1.8 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate zmq-rs 0.1.8
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate zmq-rs 0.1.8
[INFO] tweaked toml for crates.io crate zmq-rs 0.1.8 written to work/builds/worker-11/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 7d9309a62080f85acf683f251a22ce4b1971c294653766188f2f2496ba7c9ae3
[INFO] running `"docker" "start" "-a" "7d9309a62080f85acf683f251a22ce4b1971c294653766188f2f2496ba7c9ae3"`
[INFO] [stderr]    Compiling zmq-ffi v0.1.3
[INFO] [stderr]    Compiling zmq-rs v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `"docker" "inspect" "7d9309a62080f85acf683f251a22ce4b1971c294653766188f2f2496ba7c9ae3"`
[INFO] running `"docker" "rm" "-f" "7d9309a62080f85acf683f251a22ce4b1971c294653766188f2f2496ba7c9ae3"`
[INFO] [stdout] 7d9309a62080f85acf683f251a22ce4b1971c294653766188f2f2496ba7c9ae3
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4139305fe057054df6e2d4ea80d51c38bfed20f9e5776d82a606e8f3b5b8a569
[INFO] running `"docker" "start" "-a" "4139305fe057054df6e2d4ea80d51c38bfed20f9e5776d82a606e8f3b5b8a569"`
[INFO] [stderr]    Compiling zmq-rs v0.1.8 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> examples/zguide/hwserver.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let mut context = zmq::Context::new().unwrap();
[INFO] [stderr]   |         ----^^^^^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::option::Option::<T>::is_some` that must be used
[INFO] [stderr]   --> tests/lib.rs:72:5
[INFO] [stderr]    |
[INFO] [stderr] 72 |     empty.get_meta("Socket-Type").is_some();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you intended to assert that this has a value, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::option::Option::<T>::is_some` that must be used
[INFO] [stderr]   --> tests/lib.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     empty.get_meta("Identity").is_some();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this has a value, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::option::Option::<T>::is_some` that must be used
[INFO] [stderr]   --> tests/lib.rs:74:5
[INFO] [stderr]    |
[INFO] [stderr] 74 |     empty.get_meta("Resource").is_some();
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: if you intended to assert that this has a value, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.73s
[INFO] running `"docker" "inspect" "4139305fe057054df6e2d4ea80d51c38bfed20f9e5776d82a606e8f3b5b8a569"`
[INFO] running `"docker" "rm" "-f" "4139305fe057054df6e2d4ea80d51c38bfed20f9e5776d82a606e8f3b5b8a569"`
[INFO] [stdout] 4139305fe057054df6e2d4ea80d51c38bfed20f9e5776d82a606e8f3b5b8a569
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 7127c7f5848bd828ce23a1e1ae018691ee9e353ac89955ae5783efc2323f1610
[INFO] running `"docker" "start" "-a" "7127c7f5848bd828ce23a1e1ae018691ee9e353ac89955ae5783efc2323f1610"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/zmq_rs-e6de61ffadd9f166
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lib-7eea8c6bd76b614e
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test message_test ... ok
[INFO] [stdout] test version_test ... ok
[INFO] [stdout] test capability_test ... ok
[INFO] [stdout] test context_test ... ok
[INFO] [stdout] test socket_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zmq-rs
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7127c7f5848bd828ce23a1e1ae018691ee9e353ac89955ae5783efc2323f1610"`
[INFO] running `"docker" "rm" "-f" "7127c7f5848bd828ce23a1e1ae018691ee9e353ac89955ae5783efc2323f1610"`
[INFO] [stdout] 7127c7f5848bd828ce23a1e1ae018691ee9e353ac89955ae5783efc2323f1610