[INFO] fetching crate flo_binding 1.1.0...
[INFO] testing flo_binding-1.1.0 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate flo_binding 1.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate flo_binding 1.1.0 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flo_binding 1.1.0
[INFO] finished tweaking crates.io crate flo_binding 1.1.0
[INFO] tweaked toml for crates.io crate flo_binding 1.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 99e688ed68af9b743eb0b68cbddb050223dcb4c0c6f43998bd5bc96566af7c49
[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" "99e688ed68af9b743eb0b68cbddb050223dcb4c0c6f43998bd5bc96566af7c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99e688ed68af9b743eb0b68cbddb050223dcb4c0c6f43998bd5bc96566af7c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99e688ed68af9b743eb0b68cbddb050223dcb4c0c6f43998bd5bc96566af7c49", kill_on_drop: false }`
[INFO] [stdout] 99e688ed68af9b743eb0b68cbddb050223dcb4c0c6f43998bd5bc96566af7c49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cfc0b2c3b1a46b4bf59d1a97a4942d8c8d9cbfb2c165ad6afba2340231079e8
[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" "1cfc0b2c3b1a46b4bf59d1a97a4942d8c8d9cbfb2c165ad6afba2340231079e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[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 desync v0.5.0
[INFO] [stderr]    Compiling flo_binding v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `watcher`
[INFO] [stdout]   --> src/follow.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     watcher: Box<dyn Releasable>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.06s
[INFO] running `Command { std: "docker" "inspect" "1cfc0b2c3b1a46b4bf59d1a97a4942d8c8d9cbfb2c165ad6afba2340231079e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cfc0b2c3b1a46b4bf59d1a97a4942d8c8d9cbfb2c165ad6afba2340231079e8", kill_on_drop: false }`
[INFO] [stdout] 1cfc0b2c3b1a46b4bf59d1a97a4942d8c8d9cbfb2c165ad6afba2340231079e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--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] ec651b88ecfaab2e646242445e781729c7e6fc207057956db2f5ebf56221fddd
[INFO] running `Command { std: "docker" "start" "-a" "ec651b88ecfaab2e646242445e781729c7e6fc207057956db2f5ebf56221fddd", kill_on_drop: false }`
[INFO] [stderr]    Compiling flo_binding v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `watcher`
[INFO] [stdout]   --> src/follow.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     watcher: Box<dyn Releasable>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::prelude`
[INFO] [stdout]    --> src/follow.rs:118:9
[INFO] [stdout]     |
[INFO] [stdout] 118 |     use futures::prelude::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `watcher`
[INFO] [stdout]   --> src/follow.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     watcher: Box<dyn Releasable>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.62s
[INFO] running `Command { std: "docker" "inspect" "ec651b88ecfaab2e646242445e781729c7e6fc207057956db2f5ebf56221fddd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec651b88ecfaab2e646242445e781729c7e6fc207057956db2f5ebf56221fddd", kill_on_drop: false }`
[INFO] [stdout] ec651b88ecfaab2e646242445e781729c7e6fc207057956db2f5ebf56221fddd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a3349ebdf9c23c26eba0eee0a3f8ecdb72f735ce84d9c95125fe6b710c3bc992
[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" "a3349ebdf9c23c26eba0eee0a3f8ecdb72f735ce84d9c95125fe6b710c3bc992", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `watcher`
[INFO] [stderr]   --> src/follow.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     watcher: Box<dyn Releasable>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `futures::prelude`
[INFO] [stderr]    --> src/follow.rs:118:9
[INFO] [stderr]     |
[INFO] [stderr] 118 |     use futures::prelude::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `watcher`
[INFO] [stderr]   --> src/follow.rs:48:5
[INFO] [stderr]    |
[INFO] [stderr] 48 |     watcher: Box<dyn Releasable>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/flo_binding-14bef5895e4d298f
[INFO] [stdout] 
[INFO] [stdout] running 38 tests
[INFO] [stdout] test follow::test::follow_stream_has_initial_value ... ok
[INFO] [stdout] test bindref::test::bind_ref_from_computed ... ok
[INFO] [stdout] test bindref::test::bind_ref_from_value ... ok
[INFO] [stdout] test bindref::test::bindref_matches_core_value_when_created_from_ref ... ok
[INFO] [stdout] test bindref::test::bindref_matches_core_value ... ok
[INFO] [stdout] test follow::test::stream_is_unready_after_first_read ... ok
[INFO] [stdout] test follow::test::follow_stream_updates ... ok
[INFO] [stdout] test follow::test::stream_is_immediately_ready_after_write ... ok
[INFO] [stdout] test test::can_compute_value ... ok
[INFO] [stdout] test test::binding_context_is_notified ... ok
[INFO] [stdout] test bind_stream::test::no_notification_on_no_change ... ok
[INFO] [stdout] test bind_stream::test::stream_in_all_values ... ok
[INFO] [stdout] test test::can_create_binding ... ok
[INFO] [stdout] test bind_stream::test::stream_processes_updates ... ok
[INFO] [stdout] test test::can_recursively_compute_values_3 ... ok
[INFO] [stdout] test test::can_recursively_compute_values_2 ... ok
[INFO] [stdout] test test::can_recursively_compute_values ... ok
[INFO] [stdout] test test::can_update_binding ... ok
[INFO] [stdout] test test::can_recompute_value ... ok
[INFO] [stdout] test test::computed_notifies_of_changes ... ok
[INFO] [stdout] test test::computed_propagates_changes ... ok
[INFO] [stdout] test test::computed_doesnt_notify_more_than_once ... ok
[INFO] [stdout] test test::computed_caches_values ... ok
[INFO] [stdout] test test::dispatches_multiple_notifications ... ok
[INFO] [stdout] test test::computed_stops_notifying_once_out_of_scope ... ok
[INFO] [stdout] test test::computed_only_recomputes_as_needed ... ok
[INFO] [stdout] test test::computed_switches_dependencies ... ok
[INFO] [stdout] test test::computed_stops_notifying_when_released ... ok
[INFO] [stdout] test test::notifies_after_each_change ... ok
[INFO] [stdout] test test::not_notified_on_no_change ... ok
[INFO] [stdout] test test::notified_on_change ... ok
[INFO] [stdout] test test::release_only_affects_one_notification ... ok
[INFO] [stdout] test test::stops_notifying_after_release ... ok
[INFO] [stdout] test follow::test::will_wake_when_binding_is_updated ... ok
[INFO] [stderr] thread panicked while panicking. aborting.
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/flo_binding-14bef5895e4d298f` (signal: 4, SIGILL: illegal instruction)
[INFO] running `Command { std: "docker" "inspect" "a3349ebdf9c23c26eba0eee0a3f8ecdb72f735ce84d9c95125fe6b710c3bc992", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3349ebdf9c23c26eba0eee0a3f8ecdb72f735ce84d9c95125fe6b710c3bc992", kill_on_drop: false }`
[INFO] [stdout] a3349ebdf9c23c26eba0eee0a3f8ecdb72f735ce84d9c95125fe6b710c3bc992