[INFO] fetching crate flo_stream 0.6.0...
[INFO] testing flo_stream-0.6.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate flo_stream 0.6.0 into /workspace/builds/worker-105/source
[INFO] validating manifest of crates.io crate flo_stream 0.6.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flo_stream 0.6.0
[INFO] finished tweaking crates.io crate flo_stream 0.6.0
[INFO] tweaked toml for crates.io crate flo_stream 0.6.0 written to /workspace/builds/worker-105/source/Cargo.toml
[INFO] crate crates.io crate flo_stream 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ef163271496c0edae67d92fc8d45fada4cc479a2e7cc68b614fc0d32a3addb9
[INFO] running `Command { std: "docker" "start" "-a" "7ef163271496c0edae67d92fc8d45fada4cc479a2e7cc68b614fc0d32a3addb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ef163271496c0edae67d92fc8d45fada4cc479a2e7cc68b614fc0d32a3addb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ef163271496c0edae67d92fc8d45fada4cc479a2e7cc68b614fc0d32a3addb9", kill_on_drop: false }`
[INFO] [stdout] 7ef163271496c0edae67d92fc8d45fada4cc479a2e7cc68b614fc0d32a3addb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42f0bcde415a955039442e06321ba0ee72a3c56b8d852a2f52947cfae128279a
[INFO] running `Command { std: "docker" "start" "-a" "42f0bcde415a955039442e06321ba0ee72a3c56b8d852a2f52947cfae128279a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling futures-core v0.3.12
[INFO] [stderr]    Compiling futures-sink v0.3.12
[INFO] [stderr]    Compiling pin-project-lite v0.2.4
[INFO] [stderr]    Compiling futures-io v0.3.12
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling futures-channel v0.3.12
[INFO] [stderr]    Compiling futures-task v0.3.12
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling futures-util v0.3.12
[INFO] [stderr]    Compiling futures-executor v0.3.12
[INFO] [stderr]    Compiling futures v0.3.12
[INFO] [stderr]    Compiling flo_stream v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.95s
[INFO] running `Command { std: "docker" "inspect" "42f0bcde415a955039442e06321ba0ee72a3c56b8d852a2f52947cfae128279a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f0bcde415a955039442e06321ba0ee72a3c56b8d852a2f52947cfae128279a", kill_on_drop: false }`
[INFO] [stdout] 42f0bcde415a955039442e06321ba0ee72a3c56b8d852a2f52947cfae128279a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e46ddd2eaaacbdc2ed31321d14240745e61fc9ee5145832e3e52cd7462c99e0
[INFO] running `Command { std: "docker" "start" "-a" "8e46ddd2eaaacbdc2ed31321d14240745e61fc9ee5145832e3e52cd7462c99e0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling desync v0.5.0
[INFO] [stderr]    Compiling flo_stream v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.30s
[INFO] running `Command { std: "docker" "inspect" "8e46ddd2eaaacbdc2ed31321d14240745e61fc9ee5145832e3e52cd7462c99e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e46ddd2eaaacbdc2ed31321d14240745e61fc9ee5145832e3e52cd7462c99e0", kill_on_drop: false }`
[INFO] [stdout] 8e46ddd2eaaacbdc2ed31321d14240745e61fc9ee5145832e3e52cd7462c99e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fd43f4495cc00f0e24d1120ce8acc5d2e4c36d4bfc126494bd0a364c9fa3c387
[INFO] running `Command { std: "docker" "start" "-a" "fd43f4495cc00f0e24d1120ce8acc5d2e4c36d4bfc126494bd0a364c9fa3c387", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flo_stream-8701b33062ba1f26)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/blocking.rs (/opt/rustwide/target/debug/deps/blocking-069f0970ecf5b82a)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test blocks_if_there_are_no_subscribers ... ok
[INFO] [stdout] test blocks_if_there_are_insufficient_subscribers ... ok
[INFO] [stdout] test read_from_subscribers ... ok
[INFO] [stdout] test unblocks_if_there_are_sufficient_subscribers ... ok
[INFO] [stderr]      Running tests/generator.rs (/opt/rustwide/target/debug/deps/generator-3794f0aca43b8e28)
[INFO] [stdout] test read_from_thread_late_start ... ok
[INFO] [stdout] test read_from_thread ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test number_generator ... ok
[INFO] [stdout] test add_one_generator ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/pubsub.rs (/opt/rustwide/target/debug/deps/pubsub-59ba25696cd22a4c)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test clone_subscribers_after_reading ... ok
[INFO] [stdout] test clone_subscribers ... ok
[INFO] [stdout] test blocks_if_subscribers_are_full ... ok
[INFO] [stdout] test complete_on_multiple_subscribers ... ok
[INFO] [stdout] test drop_publisher_after_send_all ... ok
[INFO] [stdout] test drop_publisher_with_weak_publisher_after_publish ... ok
[INFO] [stdout] test complete_when_empty ... ok
[INFO] [stdout] test expiring_removes_oldest_events_first ... ok
[INFO] [stdout] test drop_publisher_with_weak_publisher_after_send_all ... ok
[INFO] [stdout] test send_all_stream ... ok
[INFO] [stdout] test single_receive_on_one_subscriber ... ok
[INFO] [stdout] test receive_on_one_subscriber ... ok
[INFO] [stdout] test skip_messages_sent_before_subscription ... ok
[INFO] [stdout] test subscriber_closes_when_publisher_closes ... ok
[INFO] [stdout] test republish_3_times ... ok
[INFO] [stdout] test single_receive_on_two_subscribers ... ok
[INFO] [stdout] test read_on_multiple_subscribers ... ok
[INFO] [stdout] test send_all_drops_stream_when_publisher_dropped ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/sink.rs (/opt/rustwide/target/debug/deps/sink-7734057d9b7a1160)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test close_sink_same_thread ... ok
[INFO] [stdout] test close_sink ... ok
[INFO] [stdout] test send_stream_via_sink ... ok
[INFO] [stdout] test send_via_sink ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flo_stream
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/generator.rs - generator::generator_stream (line 88) ... ok
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.99s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fd43f4495cc00f0e24d1120ce8acc5d2e4c36d4bfc126494bd0a364c9fa3c387", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd43f4495cc00f0e24d1120ce8acc5d2e4c36d4bfc126494bd0a364c9fa3c387", kill_on_drop: false }`
[INFO] [stdout] fd43f4495cc00f0e24d1120ce8acc5d2e4c36d4bfc126494bd0a364c9fa3c387