[INFO] fetching crate flo_binding 2.0.0...
[INFO] testing flo_binding-2.0.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate flo_binding 2.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate flo_binding 2.0.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flo_binding 2.0.0
[INFO] finished tweaking crates.io crate flo_binding 2.0.0
[INFO] tweaked toml for crates.io crate flo_binding 2.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] acd90daee1a2d12ed0af5dc31158351806722f44107712dd3760bbb0e6898d2f
[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" "acd90daee1a2d12ed0af5dc31158351806722f44107712dd3760bbb0e6898d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "acd90daee1a2d12ed0af5dc31158351806722f44107712dd3760bbb0e6898d2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acd90daee1a2d12ed0af5dc31158351806722f44107712dd3760bbb0e6898d2f", kill_on_drop: false }`
[INFO] [stdout] acd90daee1a2d12ed0af5dc31158351806722f44107712dd3760bbb0e6898d2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e540e1455a16fdb24f0abe6fe40b763313052b09dcf7c725da71bb30d5375867
[INFO] running `Command { std: "docker" "start" "-a" "e540e1455a16fdb24f0abe6fe40b763313052b09dcf7c725da71bb30d5375867", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling flo_rope v0.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling flo_stream v0.4.0
[INFO] [stderr]    Compiling desync v0.7.0
[INFO] [stderr]    Compiling flo_binding v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.48s
[INFO] running `Command { std: "docker" "inspect" "e540e1455a16fdb24f0abe6fe40b763313052b09dcf7c725da71bb30d5375867", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e540e1455a16fdb24f0abe6fe40b763313052b09dcf7c725da71bb30d5375867", kill_on_drop: false }`
[INFO] [stdout] e540e1455a16fdb24f0abe6fe40b763313052b09dcf7c725da71bb30d5375867
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aed952e403d977f437e45275cdd78c2335978acd916dede9deea4d7b0aeb9c00
[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" "aed952e403d977f437e45275cdd78c2335978acd916dede9deea4d7b0aeb9c00", kill_on_drop: false }`
[INFO] [stderr]    Compiling flo_binding v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.42s
[INFO] running `Command { std: "docker" "inspect" "aed952e403d977f437e45275cdd78c2335978acd916dede9deea4d7b0aeb9c00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aed952e403d977f437e45275cdd78c2335978acd916dede9deea4d7b0aeb9c00", kill_on_drop: false }`
[INFO] [stdout] aed952e403d977f437e45275cdd78c2335978acd916dede9deea4d7b0aeb9c00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f973c46c74c49eab5f2e6cd4f6acdb5882e0963db6c402a3e4a1b5eaaef48461
[INFO] running `Command { std: "docker" "start" "-a" "f973c46c74c49eab5f2e6cd4f6acdb5882e0963db6c402a3e4a1b5eaaef48461", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flo_binding-dd04e8e0920b4fa3)
[INFO] [stdout] 
[INFO] [stdout] running 40 tests
[INFO] [stdout] test bindref::test::bind_ref_from_computed ... ok
[INFO] [stdout] test bindref::test::bindref_matches_core_value ... ok
[INFO] [stdout] test test::binding_context_is_notified ... ok
[INFO] [stdout] test test::can_compute_value ... ok
[INFO] [stdout] test follow::test::follow_stream_updates ... ok
[INFO] [stdout] test test::can_create_binding ... ok
[INFO] [stdout] test test::can_recompute_value ... ok
[INFO] [stdout] test test::can_recursively_compute_values_3 ... ok
[INFO] [stdout] test test::can_update_binding ... ok
[INFO] [stdout] test follow::test::stream_is_immediately_ready_after_write ... ok
[INFO] [stdout] test follow::test::follow_stream_has_initial_value ... ok
[INFO] [stdout] test test::can_recursively_compute_values_2 ... ok
[INFO] [stdout] test rope_binding::tests::pull_from_mutable_binding ... ok
[INFO] [stdout] test test::computed_caches_values ... ok
[INFO] [stdout] test test::computed_doesnt_notify_more_than_once ... ok
[INFO] [stdout] test test::computed_only_recomputes_as_needed ... ok
[INFO] [stdout] test test::computed_notifies_of_changes ... ok
[INFO] [stdout] test test::computed_propagates_changes ... ok
[INFO] [stdout] test test::computed_stops_notifying_once_out_of_scope ... ok
[INFO] [stdout] test test::computed_stops_notifying_when_released ... ok
[INFO] [stdout] test test::computed_switches_dependencies ... ok
[INFO] [stdout] test test::dispatches_multiple_notifications ... ok
[INFO] [stdout] test test::not_notified_on_no_change ... ok
[INFO] [stdout] test test::release_only_affects_one_notification ... ok
[INFO] [stdout] test test::notifies_after_each_change ... ok
[INFO] [stdout] test test::notified_on_change ... ok
[INFO] [stdout] test bind_stream::test::stream_processes_updates ... ok
[INFO] [stdout] test bindref::test::bind_ref_from_value ... ok
[INFO] [stdout] test test::stops_notifying_after_release ... ok
[INFO] [stdout] test rope_binding::tests::mutable_rope_sends_changes_to_stream ... ok
[INFO] [stdout] test test::can_recursively_compute_values ... ok
[INFO] [stdout] test follow::test::stream_is_unready_after_first_read ... ok
[INFO] [stdout] test bindref::test::bindref_matches_core_value_when_created_from_ref ... ok
[INFO] [stdout] test bind_stream::test::no_notification_on_no_change ... ok
[INFO] [stdout] test bind_stream::test::notifies_on_change ... ok
[INFO] [stdout] test follow::test::will_wake_when_binding_is_updated ... ok
[INFO] [stdout] test bind_stream::test::stream_in_all_values ... FAILED
[INFO] [stdout] test test::panics_if_computed_generated_during_binding - should panic ... ok
[INFO] [stdout] test test::change_during_computation_recomputes ... ok
[INFO] [stdout] test follow::test::computed_updates_during_read has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "f973c46c74c49eab5f2e6cd4f6acdb5882e0963db6c402a3e4a1b5eaaef48461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f973c46c74c49eab5f2e6cd4f6acdb5882e0963db6c402a3e4a1b5eaaef48461", kill_on_drop: false }`
[INFO] [stdout] f973c46c74c49eab5f2e6cd4f6acdb5882e0963db6c402a3e4a1b5eaaef48461