Updating crates.io index
     Locking 200 packages to latest compatible versions
      Adding criterion v0.5.1 (available: v0.8.2)
      Adding generic-array v0.14.7 (available: v0.14.9)
   Compiling rustzmq2 v0.1.0 (/home/runner/work/rustzmq2/rustzmq2)
    Finished `bench` profile [optimized] target(s) in 8.63s
     Running benches/engine.rs (target/release/deps/engine-05ff6339d12588f7)
Gnuplot not found, using plotters backend
Benchmarking engine/pipelined_throughput/16
Benchmarking engine/pipelined_throughput/16: Warming up for 2.0000 s
Benchmarking engine/pipelined_throughput/16: Collecting 10 samples in estimated 8.2243 s (1595 iterations)
Benchmarking engine/pipelined_throughput/16: Analyzing
engine/pipelined_throughput/16
                        time:   [4.7423 ms 5.3575 ms 5.9684 ms]
                        thrpt:  [2.6180 MiB/s 2.9164 MiB/s 3.2948 MiB/s]
Benchmarking engine/pipelined_throughput/256
Benchmarking engine/pipelined_throughput/256: Warming up for 2.0000 s
Benchmarking engine/pipelined_throughput/256: Collecting 10 samples in estimated 8.0052 s (1980 iterations)
Benchmarking engine/pipelined_throughput/256: Analyzing
engine/pipelined_throughput/256
                        time:   [3.4422 ms 3.7734 ms 4.3685 ms]
                        thrpt:  [57.228 MiB/s 66.252 MiB/s 72.628 MiB/s]
Benchmarking engine/pipelined_throughput/4096
Benchmarking engine/pipelined_throughput/4096: Warming up for 2.0000 s
Benchmarking engine/pipelined_throughput/4096: Collecting 10 samples in estimated 8.0424 s (2750 iterations)
Benchmarking engine/pipelined_throughput/4096: Analyzing
engine/pipelined_throughput/4096
                        time:   [2.9350 ms 2.9838 ms 3.0616 ms]
                        thrpt:  [1.2759 GiB/s 1.3092 GiB/s 1.3309 GiB/s]
Found 1 outliers among 10 measurements (10.00%)
  1 (10.00%) high severe