[INFO] fetching crate par-stream 0.2.1...
[INFO] testing par-stream-0.2.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate par-stream 0.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate par-stream 0.2.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate par-stream 0.2.1
[INFO] finished tweaking crates.io crate par-stream 0.2.1
[INFO] tweaked toml for crates.io crate par-stream 0.2.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate par-stream 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 53a455b53960829c63aa047388c4d19898c38d54064c185f55b2a3a8e2bcd407
[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" "53a455b53960829c63aa047388c4d19898c38d54064c185f55b2a3a8e2bcd407", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53a455b53960829c63aa047388c4d19898c38d54064c185f55b2a3a8e2bcd407", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53a455b53960829c63aa047388c4d19898c38d54064c185f55b2a3a8e2bcd407", kill_on_drop: false }`
[INFO] [stdout] 53a455b53960829c63aa047388c4d19898c38d54064c185f55b2a3a8e2bcd407
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 099b15db44d9b5d75159dfb7a63a173acd6f3e94ace2c9643a6d14db779411c2
[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" "099b15db44d9b5d75159dfb7a63a173acd6f3e94ace2c9643a6d14db779411c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling fastrand v1.4.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling vec-arena v1.0.0
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling futures-task v0.3.8
[INFO] [stderr]    Compiling tokio v0.3.5
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling futures-lite v1.11.2
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling polling v2.0.2
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-io v1.3.1
[INFO] [stderr]    Compiling async-executor v1.4.0
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling async-global-executor v1.4.3
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling tokio-macros v0.3.1
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling async-std v1.7.0
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling par-stream v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.16s
[INFO] running `Command { std: "docker" "inspect" "099b15db44d9b5d75159dfb7a63a173acd6f3e94ace2c9643a6d14db779411c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "099b15db44d9b5d75159dfb7a63a173acd6f3e94ace2c9643a6d14db779411c2", kill_on_drop: false }`
[INFO] [stdout] 099b15db44d9b5d75159dfb7a63a173acd6f3e94ace2c9643a6d14db779411c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f37a5873fd98f0ca13cc364f04c130ae8e45ea3543f5692333d057489ea41f5
[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" "0f37a5873fd98f0ca13cc364f04c130ae8e45ea3543f5692333d057489ea41f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling par-stream v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 22.16s
[INFO] running `Command { std: "docker" "inspect" "0f37a5873fd98f0ca13cc364f04c130ae8e45ea3543f5692333d057489ea41f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f37a5873fd98f0ca13cc364f04c130ae8e45ea3543f5692333d057489ea41f5", kill_on_drop: false }`
[INFO] [stdout] 0f37a5873fd98f0ca13cc364f04c130ae8e45ea3543f5692333d057489ea41f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f73a5d1a95e4096075b09f5ef89f5ecbcfef586c11fbb8d942e0dda2ceb39f87
[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" "f73a5d1a95e4096075b09f5ef89f5ecbcfef586c11fbb8d942e0dda2ceb39f87", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/par_stream-c5cba802ac10bd42
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test try_stream::tests::try_par_then_test ... ok
[INFO] [stdout] test try_stream::tests::try_par_for_each_test ... ok
[INFO] [stdout] test stream::tests::for_each_test ... ok
[INFO] [stdout] test stream::tests::enumerate_reorder_test ... ok
[INFO] [stdout] test stream::tests::par_then_output_is_ordered_test ... ok
[INFO] [stdout] test stream::tests::par_then_unordered_test ... ok
[INFO] [stdout] test stream::tests::tokio_compatibility_test ... ok
[INFO] [stdout] test try_stream::tests::try_reorder_enumerated_test ... ok
[INFO] [stdout] test stream::tests::par_reduce_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests par-stream
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/future.rs - future::ParFuture (line 7) ... ok
[INFO] [stdout] test src/stream.rs - stream::ParStreamExt::par_then_unordered (line 160) ... ok
[INFO] [stdout] test src/stream.rs - stream::ParStreamExt::par_scatter (line 790) ... ok
[INFO] [stdout] test src/stream.rs - stream::ParStreamExt::par_reduce (line 386) ... ok
[INFO] [stdout] test src/stream.rs - stream::ParStreamExt::par_map_unordered (line 305) ... ok
[INFO] [stdout] test src/stream.rs - stream::ParStreamExt::par_then (line 72) ... ok
[INFO] [stdout] test src/stream.rs - stream::par_gather (line 10) ... ok
[INFO] [stdout] test src/stream.rs - stream::ParStreamExt::par_map (line 231) ... ok
[INFO] [stdout] test src/stream.rs - stream::ParStreamExt::par_routing (line 518) ... ok
[INFO] [stdout] test src/stream.rs - stream::ParStreamExt::reorder_enumerated (line 743) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f73a5d1a95e4096075b09f5ef89f5ecbcfef586c11fbb8d942e0dda2ceb39f87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f73a5d1a95e4096075b09f5ef89f5ecbcfef586c11fbb8d942e0dda2ceb39f87", kill_on_drop: false }`
[INFO] [stdout] f73a5d1a95e4096075b09f5ef89f5ecbcfef586c11fbb8d942e0dda2ceb39f87