[INFO] fetching crate ring-channel 0.8.3...
[INFO] testing ring-channel-0.8.3 against 1.54.0 for beta-1.55-1
[INFO] extracting crate ring-channel 0.8.3 into /workspace/builds/worker-94/source
[INFO] validating manifest of crates.io crate ring-channel 0.8.3 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ring-channel 0.8.3
[INFO] finished tweaking crates.io crate ring-channel 0.8.3
[INFO] tweaked toml for crates.io crate ring-channel 0.8.3 written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37bcc2aed48e3919ae466685a2803606e9d6ce56a7ebea5171071f1e668ac0b2
[INFO] running `Command { std: "docker" "start" "-a" "37bcc2aed48e3919ae466685a2803606e9d6ce56a7ebea5171071f1e668ac0b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37bcc2aed48e3919ae466685a2803606e9d6ce56a7ebea5171071f1e668ac0b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37bcc2aed48e3919ae466685a2803606e9d6ce56a7ebea5171071f1e668ac0b2", kill_on_drop: false }`
[INFO] [stdout] 37bcc2aed48e3919ae466685a2803606e9d6ce56a7ebea5171071f1e668ac0b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0e50eb66240ed13d02fef02014a78278676386d99db0dcc356a472338d6b149
[INFO] running `Command { std: "docker" "start" "-a" "f0e50eb66240ed13d02fef02014a78278676386d99db0dcc356a472338d6b149", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling spinning_top v0.2.4
[INFO] [stderr]    Compiling futures-executor v0.3.16
[INFO] [stderr]    Compiling futures v0.3.16
[INFO] [stderr]    Compiling ring-channel v0.8.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.03s
[INFO] running `Command { std: "docker" "inspect" "f0e50eb66240ed13d02fef02014a78278676386d99db0dcc356a472338d6b149", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0e50eb66240ed13d02fef02014a78278676386d99db0dcc356a472338d6b149", kill_on_drop: false }`
[INFO] [stdout] f0e50eb66240ed13d02fef02014a78278676386d99db0dcc356a472338d6b149
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcc17cd4132c6ebd975c140bad2e77090b034e4a2c7f560ac6cf749cec257430
[INFO] running `Command { std: "docker" "start" "-a" "dcc17cd4132c6ebd975c140bad2e77090b034e4a2c7f560ac6cf749cec257430", 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] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling fastrand v1.5.0
[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 regex-syntax v0.6.25
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling predicates-core v1.0.2
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling fragile v1.0.0
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling downcast v0.10.0
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling polling v2.1.0
[INFO] [stderr]    Compiling socket2 v0.4.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling mockall_derive v0.9.1
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling predicates-tree v1.0.3
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rusty-fork v0.3.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling async-process v1.2.0
[INFO] [stderr]    Compiling async-net v1.6.1
[INFO] [stderr]    Compiling async-fs v1.5.0
[INFO] [stderr]    Compiling smol v1.2.5
[INFO] [stderr]    Compiling float-cmp v0.8.0
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling proptest v0.10.1
[INFO] [stderr]    Compiling predicates v1.0.8
[INFO] [stderr]    Compiling mockall v0.9.1
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling proptest-derive v0.2.0
[INFO] [stderr]    Compiling ring-channel v0.8.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 42.34s
[INFO] running `Command { std: "docker" "inspect" "dcc17cd4132c6ebd975c140bad2e77090b034e4a2c7f560ac6cf749cec257430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcc17cd4132c6ebd975c140bad2e77090b034e4a2c7f560ac6cf749cec257430", kill_on_drop: false }`
[INFO] [stdout] dcc17cd4132c6ebd975c140bad2e77090b034e4a2c7f560ac6cf749cec257430
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1a7e6a622ccf393be6b99f68eb7bdbf858e1798fcff577dccfe59c2579b14d88
[INFO] running `Command { std: "docker" "start" "-a" "1a7e6a622ccf393be6b99f68eb7bdbf858e1798fcff577dccfe59c2579b14d88", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ring_channel-25d8e15e16db15dc)
[INFO] [stdout] running 43 tests
[INFO] [stdout] test channel::tests::channel_is_disconnected_if_there_are_no_receivers ... ok
[INFO] [stdout] test channel::tests::cloning_receiver_increments_receivers_counter ... ok
[INFO] [stdout] test channel::tests::channel_is_disconnected_if_there_are_no_senders ... ok
[INFO] [stdout] test buffer::tests::cell ... ok
[INFO] [stdout] test buffer::tests::queue ... ok
[INFO] [stdout] test channel::tests::dropping_receiver_decrements_receivers_counter ... ok
[INFO] [stdout] test channel::tests::dropping_sender_decrements_senders_counter ... ok
[INFO] [stdout] test channel::tests::cloning_sender_increments_senders ... ok
[INFO] [stdout] test channel::tests::receivers_are_equal_if_they_are_associated_with_the_same_ring_channel ... ok
[INFO] [stdout] test channel::tests::ring_channel_is_associated_with_a_single_control_block ... ok
[INFO] [stdout] test buffer::tests::capacity ... ok
[INFO] [stdout] test channel::tests::senders_are_equal_if_they_are_associated_with_the_same_ring_channel ... ok
[INFO] [stdout] test buffer::tests::overflow ... ok
[INFO] [stdout] test control::tests::control_block_starts_with_reference_counters_equal_to_one ... ok
[INFO] [stdout] test control::tests::control_block_starts_connected ... ok
[INFO] [stdout] test error::tests::send_error_implements_error_trait ... ok
[INFO] [stdout] test waitlist::tests::waitlist_starts_empty ... ok
[INFO] [stdout] test error::tests::try_recv_error_implements_error_trait ... ok
[INFO] [stdout] test control::tests::control_block_allocates_buffer_given_capacity ... ok
[INFO] [stdout] test error::tests::recv_error_implements_error_trait ... ok
[INFO] [stdout] test waitlist::tests::wait_ignores_redundant_wakers ... ok
[INFO] [stdout] test channel::tests::stream ... ok
[INFO] [stdout] test channel::tests::send_overwrites_old_messages ... ok
[INFO] [stdout] test waitlist::tests::wait_stores_wakers ... ok
[INFO] [stdout] test channel::tests::sink ... ok
[INFO] [stdout] test channel::tests::try_recv_fails_on_empty_disconnected_channel ... ok
[INFO] [stdout] test waitlist::tests::wakers_are_woken_exactly_once ... ok
[INFO] [stdout] test channel::tests::stream_wakes_on_disconnect ... ok
[INFO] [stdout] test channel::tests::try_recv_fails_on_empty_connected_channel ... ok
[INFO] [stdout] test channel::tests::recv_wakes_on_disconnect ... ok
[INFO] [stdout] test channel::tests::recv_fails_on_empty_disconnected_channel ... ok
[INFO] [stdout] test channel::tests::endpoints_are_safe_to_send_across_threads ... ok
[INFO] [stdout] test channel::tests::stream_wakes_on_send_all ... ok
[INFO] [stdout] test channel::tests::recv_wakes_on_send_all ... ok
[INFO] [stdout] test channel::tests::stream_wakes_on_send ... ok
[INFO] [stdout] test channel::tests::recv_wakes_on_send ... ok
[INFO] [stdout] test channel::tests::recv_succeeds_on_non_empty_connected_channel ... ok
[INFO] [stdout] test channel::tests::send_fails_on_disconnected_channel ... ok
[INFO] [stdout] test channel::tests::try_recv_succeeds_on_non_empty_disconnected_channel ... ok
[INFO] [stdout] test channel::tests::send_succeeds_on_connected_channel ... ok
[INFO] [stdout] test channel::tests::try_recv_succeeds_on_non_empty_connected_channel ... ok
[INFO] [stdout] test channel::tests::recv_succeeds_on_non_empty_disconnected_channel ... ok
[INFO] [stdout] test waitlist::tests::waitlist_is_thread_safe ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 43 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 17.63s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ring-channel
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/channel.rs - channel::ring_channel (line 201) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/lib.rs - (line 100) ... ok
[INFO] [stdout] test src/lib.rs - (line 67) ... ok
[INFO] [stdout] test src/lib.rs - (line 41) ... ok
[INFO] [stdout] test src/lib.rs - (line 133) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1a7e6a622ccf393be6b99f68eb7bdbf858e1798fcff577dccfe59c2579b14d88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7e6a622ccf393be6b99f68eb7bdbf858e1798fcff577dccfe59c2579b14d88", kill_on_drop: false }`
[INFO] [stdout] 1a7e6a622ccf393be6b99f68eb7bdbf858e1798fcff577dccfe59c2579b14d88
