[INFO] crate hey_listen 0.4.0 is already in cache
[INFO] extracting crate hey_listen 0.4.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/hey_listen/0.4.0
[INFO] extracting crate hey_listen 0.4.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/hey_listen/0.4.0
[INFO] validating manifest of hey_listen-0.4.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of hey_listen-0.4.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing hey_listen-0.4.0
[INFO] finished frobbing hey_listen-0.4.0
[INFO] frobbed toml for hey_listen-0.4.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/hey_listen/0.4.0/Cargo.toml
[INFO] started frobbing hey_listen-0.4.0
[INFO] finished frobbing hey_listen-0.4.0
[INFO] frobbed toml for hey_listen-0.4.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/hey_listen/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing hey_listen-0.4.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/hey_listen/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] fa20e5c40042477ce316b4420c59ba4012db026ef6e229cccd72815f14f3ad1d
[INFO] running `"docker" "start" "-a" "fa20e5c40042477ce316b4420c59ba4012db026ef6e229cccd72815f14f3ad1d"`
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling hey_listen v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused boxed `std::ops::Fn` trait object that must be used
[INFO] [stderr]    --> src/sync/parallel_dispatcher.rs:259:17
[INFO] [stderr]     |
[INFO] [stderr] 259 |                 listener_collection.fns.swap_remove(*index);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: closures are lazy and do nothing unless called
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.30s
[INFO] running `"docker" "inspect" "fa20e5c40042477ce316b4420c59ba4012db026ef6e229cccd72815f14f3ad1d"`
[INFO] running `"docker" "rm" "-f" "fa20e5c40042477ce316b4420c59ba4012db026ef6e229cccd72815f14f3ad1d"`
[INFO] [stdout] fa20e5c40042477ce316b4420c59ba4012db026ef6e229cccd72815f14f3ad1d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/hey_listen/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 1bc97e2c48acb5e2c9a3db687299ff86c5cd7e0c94520d2bac8a144d31cbe92e
[INFO] running `"docker" "start" "-a" "1bc97e2c48acb5e2c9a3db687299ff86c5cd7e0c94520d2bac8a144d31cbe92e"`
[INFO] [stderr]    Compiling hey_listen v0.4.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused boxed `std::ops::Fn` trait object that must be used
[INFO] [stderr]    --> src/sync/parallel_dispatcher.rs:259:17
[INFO] [stderr]     |
[INFO] [stderr] 259 |                 listener_collection.fns.swap_remove(*index);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: closures are lazy and do nothing unless called
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.37s
[INFO] running `"docker" "inspect" "1bc97e2c48acb5e2c9a3db687299ff86c5cd7e0c94520d2bac8a144d31cbe92e"`
[INFO] running `"docker" "rm" "-f" "1bc97e2c48acb5e2c9a3db687299ff86c5cd7e0c94520d2bac8a144d31cbe92e"`
[INFO] [stdout] 1bc97e2c48acb5e2c9a3db687299ff86c5cd7e0c94520d2bac8a144d31cbe92e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/hey_listen/0.4.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 80512ecdd20507f3161ddab86ef12f80d1ea6f579b99c079b5e202b5b5b0ff80
[INFO] running `"docker" "start" "-a" "80512ecdd20507f3161ddab86ef12f80d1ea6f579b99c079b5e202b5b5b0ff80"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/hey_listen-1e443c666ebce70c
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test rc::tests::execute_sync_dispatcher_requests::empty_vec ... ok
[INFO] [stdout] test rc::tests::execute_sync_dispatcher_requests::stop_listening ... ok
[INFO] [stdout] test sync::tests::execute_sync_dispatcher_requests::empty_vec ... ok
[INFO] [stdout] test sync::tests::execute_sync_dispatcher_requests::stop_listening ... ok
[INFO] [stdout] test sync::tests::execute_sync_dispatcher_requests::removing_all ... ok
[INFO] [stdout] test sync::tests::execute_sync_dispatcher_requests::remove_one_element_and_stop ... ok
[INFO] [stdout] test rc::tests::execute_sync_dispatcher_requests::remove_one_element_and_stop ... ok
[INFO] [stdout] test rc::tests::execute_sync_dispatcher_requests::removing_all ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/parallel_dispatcher_test-7f768297b5af695c
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test is_send_and_sync ... ok
[INFO] [stdout] test dispatch_parallel_to_functions ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/priority_listener_test-74b2170db81dca71
[INFO] [stdout] test dispatch_parallel_to_dyn_traits ... ok
[INFO] [stdout] test stop_listening_parallel_for_dyn_traits ... ok
[INFO] [stdout] test stop_listening_parallel_for_fns ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test stop_listening_and_propagation_of_fns ... ok
[INFO] [stdout] test stop_listening_and_propagation ... ok
[INFO] [stdout] test is_send_and_sync ... ok
[INFO] [stderr]      Running /opt/crater/target/debug/deps/skeptic-d34277a4d5d24762
[INFO] [stdout] test stop_listening_of_fns ... ok
[INFO] [stdout] test stop_propagation ... ok
[INFO] [stdout] test stop_propagation_of_fns ... ok
[INFO] [stdout] test stop_listening ... ok
[INFO] [stdout] test listeners_dispatch_in_correct_order ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] I'm listening! :)
[INFO] [stdout] test readme_sect_example_line_21 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/sync_listener_test-7f26bb6828e9b3ff
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test dispatch_enum_variant_with_field ... ok
[INFO] [stdout] test dispatch_to_function ... ok
[INFO] [stdout] test is_send_and_sync ... ok
[INFO] [stdout] test register_one_listener_for_one_event_variant_but_dispatch_two_variants ... ok
[INFO] [stdout] test register_one_enum_listener_for_one_event_variant_but_dispatch_two_variants ... ok
[INFO] [stdout] test stop_listening_and_propagation_on_sync_dispatcher ... ok
[INFO] [stdout] test stop_listening_on_sync_dispatcher_of_fns ... ok
[INFO] [stdout] test register_one_listener_for_two_event_variants_and_dispatch_two_variants ... ok
[INFO] [stdout] test stop_propagation_and_listening_on_sync_dispatcher_of_fns ... ok
[INFO] [stdout] test register_and_request_stop_listening ... ok
[INFO] [stdout] test stop_propagation_on_sync_dispatcher_of_fns ... ok
[INFO] [stdout] test stop_propagation_on_sync_dispatcher ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hey_listen
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test src/rc/priority_dispatcher.rs - rc::priority_dispatcher::PriorityDispatcher<P, T>::add_listener (line 93) ... ok
[INFO] [stdout] test src/rc/dispatcher.rs - rc::dispatcher::Dispatcher<T>::add_listener (line 75) ... ok
[INFO] [stdout] test src/sync/dispatcher.rs - sync::dispatcher::Dispatcher<T>::add_listener (line 78) ... ok
[INFO] [stdout] test src/rc/dispatcher.rs - rc::dispatcher::Dispatcher<T>::add_fn (line 132) ... ok
[INFO] [stdout] test src/rc/dispatcher.rs - rc::dispatcher::Dispatcher<T>::add_listener (line 49) ... ok
[INFO] [stdout] test src/lib.rs -  (line 19) ... ok
[INFO] [stdout] test src/rc/priority_dispatcher.rs - rc::priority_dispatcher::PriorityDispatcher<P, T>::add_listener (line 64) ... ok
[INFO] [stdout] test src/sync/dispatcher.rs - sync::dispatcher::Dispatcher<T>::add_listener (line 49) ... ok
[INFO] [stdout] test src/sync/dispatcher.rs - sync::dispatcher::Dispatcher<T>::add_fn (line 135) ... ok
[INFO] [stdout] test src/sync/parallel_dispatcher.rs - sync::parallel_dispatcher::ParallelDispatcher<T>::add_listener (line 82) ... ok
[INFO] [stdout] test src/rc/priority_dispatcher.rs - rc::priority_dispatcher::PriorityDispatcher<P, T>::add_fn (line 164) ... ok
[INFO] [stdout] test src/sync/priority_dispatcher.rs - sync::priority_dispatcher::PriorityDispatcher<P, T>::add_listener (line 93) ... ok
[INFO] [stdout] test src/sync/parallel_dispatcher.rs - sync::parallel_dispatcher::ParallelDispatcher<T>::add_fn (line 141) ... ok
[INFO] [stdout] test src/sync/parallel_dispatcher.rs - sync::parallel_dispatcher::ParallelDispatcher<T>::add_listener (line 53) ... ok
[INFO] [stdout] test src/sync/priority_dispatcher.rs - sync::priority_dispatcher::PriorityDispatcher<P, T>::add_listener (line 64) ... ok
[INFO] [stdout] test src/sync/priority_dispatcher.rs - sync::priority_dispatcher::PriorityDispatcher<P, T>::add_fn (line 164) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "80512ecdd20507f3161ddab86ef12f80d1ea6f579b99c079b5e202b5b5b0ff80"`
[INFO] running `"docker" "rm" "-f" "80512ecdd20507f3161ddab86ef12f80d1ea6f579b99c079b5e202b5b5b0ff80"`
[INFO] [stdout] 80512ecdd20507f3161ddab86ef12f80d1ea6f579b99c079b5e202b5b5b0ff80