[INFO] fetching crate rxr 0.1.11...
[INFO] testing rxr-0.1.11 against 1.93.0 for beta-1.94-1
[INFO] extracting crate rxr 0.1.11 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rxr 0.1.11
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rxr 0.1.11
[INFO] tweaked toml for crates.io crate rxr 0.1.11 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rxr 0.1.11 on toolchain 1.93.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.93.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rxr 0.1.11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.93.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.69
[INFO] [stderr]   Downloaded syn v2.0.38
[INFO] [stderr]   Downloaded tokio v1.44.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70bceb258f0ef08718fbcaee61e472cd05623a71b8765c15003b784e43ba7cde
[INFO] running `Command { std: "docker" "start" "-a" "70bceb258f0ef08718fbcaee61e472cd05623a71b8765c15003b784e43ba7cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70bceb258f0ef08718fbcaee61e472cd05623a71b8765c15003b784e43ba7cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70bceb258f0ef08718fbcaee61e472cd05623a71b8765c15003b784e43ba7cde", kill_on_drop: false }`
[INFO] [stdout] 70bceb258f0ef08718fbcaee61e472cd05623a71b8765c15003b784e43ba7cde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80b297edd65219a0cc0af01dca37813db3de74999004eea05b38ad16bf9df45f
[INFO] running `Command { std: "docker" "start" "-a" "80b297edd65219a0cc0af01dca37813db3de74999004eea05b38ad16bf9df45f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tokio v1.44.0
[INFO] [stderr]    Compiling rxr v0.1.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.94s
[INFO] running `Command { std: "docker" "inspect" "80b297edd65219a0cc0af01dca37813db3de74999004eea05b38ad16bf9df45f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80b297edd65219a0cc0af01dca37813db3de74999004eea05b38ad16bf9df45f", kill_on_drop: false }`
[INFO] [stdout] 80b297edd65219a0cc0af01dca37813db3de74999004eea05b38ad16bf9df45f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31b9218e2713322140b442f32914086f908acde0b4845e96a2c6c5f172f78142
[INFO] running `Command { std: "docker" "start" "-a" "31b9218e2713322140b442f32914086f908acde0b4845e96a2c6c5f172f78142", kill_on_drop: false }`
[INFO] [stderr]    Compiling rxr v0.1.11 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.36s
[INFO] running `Command { std: "docker" "inspect" "31b9218e2713322140b442f32914086f908acde0b4845e96a2c6c5f172f78142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31b9218e2713322140b442f32914086f908acde0b4845e96a2c6c5f172f78142", kill_on_drop: false }`
[INFO] [stdout] 31b9218e2713322140b442f32914086f908acde0b4845e96a2c6c5f172f78142
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dbdb4dd7a7b55f62ab9fa41da8662ff35c9e0abe4423d8ff41a8c705d823170b
[INFO] running `Command { std: "docker" "start" "-a" "dbdb4dd7a7b55f62ab9fa41da8662ff35c9e0abe4423d8ff41a8c705d823170b", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/rxr-21d19ec859f27e23)
[INFO] [stderr]      Running tests/async_subject.rs (/opt/rustwide/target/debug/deps/async_subject-2c507d7bd2df2a1e)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test async_subject_error ... ok
[INFO] [stdout] test async_subject_complete_empty ... ok
[INFO] [stdout] test async_subject_complete ... ok
[INFO] [stdout] test async_subject_error_empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/behavior_subject.rs (/opt/rustwide/target/debug/deps/behavior_subject-e27f29b3ca06edfd)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test behavior_subject_emit_than_complete ... ok
[INFO] [stdout] test behaviour_subject_emit_than_error ... 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/connectable.rs (/opt/rustwide/target/debug/deps/connectable-62819ed832187e7e)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test connectable_observable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/higher_order_operators.rs (/opt/rustwide/target/debug/deps/higher_order_operators-bcdb3bb41a5d8bbf)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test switch_map_observable ... FAILED
[INFO] [stdout] test debounce_map_observable_notify_all ... ok
[INFO] [stdout] test debounce_map_observable_notify_none ... FAILED
[INFO] [stdout] test merge_map_observable ... ok
[INFO] [stdout] test concat_map_observable ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- switch_map_observable stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread '<unnamed>' (132) panicked at tests/higher_order_operators.rs:72:25:
[INFO] [stdout] switch_map did not unsubscribed inner observable properly.
[INFO] [stdout] Outer value is 10 which is not last value emitted by outer observable. Inner observable reached
[INFO] [stdout] 10 which is its last value
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x62d677baf082 - std::backtrace_rs::backtrace::libunwind::trace::h90e89fac33585832
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x62d677baf082 - std::backtrace_rs::backtrace::trace_unsynchronized::heebcf2380a8e7359
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x62d677baf082 - std::sys::backtrace::_print_fmt::hdf3e2a22d2f810db
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:68:9
[INFO] [stdout]    3:     0x62d677baf082 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hac1d885928ba8582
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:38:26
[INFO] [stdout]    4:     0x62d677bbf167 - core::fmt::rt::Argument::fmt::h6901eb7c19abebe8
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x62d677bbf167 - core::fmt::write::h83ebb4d32483be9e
[INFO] [stdout]    6:     0x62d677b7d8e6 - std::io::default_write_fmt::h751a79cdae495f10
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x62d677b7d8e6 - std::io::Write::write_fmt::h9ef514f8700ff7b2
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x62d677b8e2d9 - std::sys::backtrace::BacktraceLock::print::hcc2e1a3ac996c911
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:41:9
[INFO] [stdout]    9:     0x62d677b8e2d9 - std::panicking::default_hook::{{closure}}::h8e9c4d1276f0925f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x62d677b8e171 - std::panicking::default_hook::h2b2078d38b534dfb
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x62d677a8289e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39d051e7dedac6a7
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x62d677a8289e - test::test_main_with_exit_callback::{{closure}}::h4b005fe75814c302
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x62d677b8e602 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd426070722c13cbf
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x62d677b8e602 - std::panicking::panic_with_hook::h39b739724e701bfd
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x62d677b8e398 - std::panicking::panic_handler::{{closure}}::he540c4833054e458
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x62d677b897c9 - std::sys::backtrace::__rust_end_short_backtrace::hfa179d89deec8aed
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:176:18
[INFO] [stdout]   17:     0x62d677b7269d - __rustc[d131491b17107b07]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x62d677bc684c - core::panicking::panic_fmt::ha564519d657d9c46
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x62d677a422dc - higher_order_operators::switch_map_observable::{{closure}}::{{closure}}::{{closure}}::he8f297bc9867abde
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/higher_order_operators.rs:72:25
[INFO] [stdout]   20:     0x62d677a038c2 - std::panicking::catch_unwind::do_call::h8520a824ab5450a5
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   21:     0x62d6779efbeb - __rust_try
[INFO] [stdout]   22:     0x62d6779ee12e - std::panicking::catch_unwind::he96cf9e8d7846f17
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   23:     0x62d6779ee12e - std::panic::catch_unwind::hbad39d0772eae2d3
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   24:     0x62d677a41bc2 - higher_order_operators::switch_map_observable::{{closure}}::{{closure}}::h806322d9d66358b4
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/higher_order_operators.rs:71:60
[INFO] [stdout]   25:     0x62d677a3425f - higher_order_operators::generate_observable::generate_u32_observable::{{closure}}::{{closure}}::hf30662eb302e053b
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/generate_observable/mod.rs:42:13
[INFO] [stdout]   26:     0x62d677a16ac6 - std::sys::backtrace::__rust_begin_short_backtrace::h33c4eb5eff6abeb3
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:160:18
[INFO] [stdout]   27:     0x62d6779fc717 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::hf3109f3990a85f18
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:92:13
[INFO] [stdout]   28:     0x62d677a48a83 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf0b549d3a3e0146d
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   29:     0x62d677a035bc - std::panicking::catch_unwind::do_call::h6bcf2b3e3f5d179d
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   30:     0x62d6779fca6b - __rust_try
[INFO] [stdout]   31:     0x62d6779f7f00 - std::panicking::catch_unwind::h942a52071eba6617
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   32:     0x62d6779f7f00 - std::panic::catch_unwind::hf26fb0d8d7acf56e
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   33:     0x62d6779f7f00 - std::thread::lifecycle::spawn_unchecked::{{closure}}::h3de7344bc47700fe
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:90:26
[INFO] [stdout]   34:     0x62d677a0aa2e - core::ops::function::FnOnce::call_once{{vtable.shim}}::h086455fc0deec918
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   35:     0x62d677b84e5f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h22a27d165e4e871d
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   36:     0x62d677b84e5f - std::sys::thread::unix::Thread::new::thread_start::h45cc87bb053add0f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   37:     0x76832cb76aa4 - <unknown>
[INFO] [stdout]   38:     0x76832cc03a64 - clone
[INFO] [stdout]   39:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- debounce_map_observable_notify_none stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'debounce_map_observable_notify_none' (40) panicked at tests/higher_order_operators.rs:517:5:
[INFO] [stdout] assertion `left == right` failed: debounced observable should have emitted one value upon complete, emitted 2
[INFO] [stdout]   left: 2
[INFO] [stdout]  right: 1
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x62d677baf082 - std::backtrace_rs::backtrace::libunwind::trace::h90e89fac33585832
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x62d677baf082 - std::backtrace_rs::backtrace::trace_unsynchronized::heebcf2380a8e7359
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x62d677baf082 - std::sys::backtrace::_print_fmt::hdf3e2a22d2f810db
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:68:9
[INFO] [stdout]    3:     0x62d677baf082 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hac1d885928ba8582
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:38:26
[INFO] [stdout]    4:     0x62d677bbf167 - core::fmt::rt::Argument::fmt::h6901eb7c19abebe8
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x62d677bbf167 - core::fmt::write::h83ebb4d32483be9e
[INFO] [stdout]    6:     0x62d677b7d8e6 - std::io::default_write_fmt::h751a79cdae495f10
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x62d677b7d8e6 - std::io::Write::write_fmt::h9ef514f8700ff7b2
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x62d677b8e2d9 - std::sys::backtrace::BacktraceLock::print::hcc2e1a3ac996c911
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:41:9
[INFO] [stdout]    9:     0x62d677b8e2d9 - std::panicking::default_hook::{{closure}}::h8e9c4d1276f0925f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x62d677b8e171 - std::panicking::default_hook::h2b2078d38b534dfb
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x62d677a8289e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39d051e7dedac6a7
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x62d677a8289e - test::test_main_with_exit_callback::{{closure}}::h4b005fe75814c302
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x62d677b8e602 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd426070722c13cbf
[INFO] [stderr] error: test failed, to rerun pass `--test higher_order_operators`
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x62d677b8e602 - std::panicking::panic_with_hook::h39b739724e701bfd
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x62d677b8e398 - std::panicking::panic_handler::{{closure}}::he540c4833054e458
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x62d677b897c9 - std::sys::backtrace::__rust_end_short_backtrace::hfa179d89deec8aed
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:176:18
[INFO] [stdout]   17:     0x62d677b7269d - __rustc[d131491b17107b07]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x62d677bc684c - core::panicking::panic_fmt::ha564519d657d9c46
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x62d677bc6763 - core::panicking::assert_failed_inner::h6fc38e43be639d33
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:434:23
[INFO] [stdout]   20:     0x62d677bc655e - core::panicking::assert_failed::h1b59b321e00be21b
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:394:5
[INFO] [stdout]   21:     0x62d677a444a0 - higher_order_operators::debounce_map_observable_notify_none::{{closure}}::h525a2a34c3e42e93
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/higher_order_operators.rs:517:5
[INFO] [stdout]   22:     0x62d677a51fe2 - <core::pin::Pin<P> as core::future::future::Future>::poll::ha1f7b9860e886c90
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/future/future.rs:133:9
[INFO] [stdout]   23:     0x62d677a1913d - tokio::runtime::park::CachedParkThread::block_on::{{closure}}::h1e9d8c1903c5d4a1
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.0/src/runtime/park.rs:284:71
[INFO] [stdout]   24:     0x62d677a18bd2 - tokio::task::coop::with_budget::heaa2e0fc307486b1
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.0/src/task/coop/mod.rs:167:5
[INFO] [stdout]   25:     0x62d677a18bd2 - tokio::task::coop::budget::hf56508cd1528951e
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.0/src/task/coop/mod.rs:133:5
[INFO] [stdout]   26:     0x62d677a18bd2 - tokio::runtime::park::CachedParkThread::block_on::hd12491bdf2975f24
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.0/src/runtime/park.rs:284:31
[INFO] [stdout]   27:     0x62d677a5bbf4 - tokio::runtime::context::blocking::BlockingRegionGuard::block_on::h8b3a456e4dc8499f
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.0/src/runtime/context/blocking.rs:66:14
[INFO] [stdout]   28:     0x62d677a4fe48 - tokio::runtime::scheduler::multi_thread::MultiThread::block_on::{{closure}}::hc16937b7fe6256e7
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.0/src/runtime/scheduler/multi_thread/mod.rs:87:22
[INFO] [stdout]   29:     0x62d677a2ec5b - tokio::runtime::context::runtime::enter_runtime::he00c6d9dd3bc4dfa
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.0/src/runtime/context/runtime.rs:65:16
[INFO] [stdout]   30:     0x62d677a4fd84 - tokio::runtime::scheduler::multi_thread::MultiThread::block_on::h41e98fa772485202
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.0/src/runtime/scheduler/multi_thread/mod.rs:86:9
[INFO] [stdout]   31:     0x62d677a46454 - tokio::runtime::runtime::Runtime::block_on_inner::hadc5e0337e6608fc
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.0/src/runtime/runtime.rs:370:50
[INFO] [stdout]   32:     0x62d677a46647 - tokio::runtime::runtime::Runtime::block_on::h914c061f10de5de5
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/tokio-1.44.0/src/runtime/runtime.rs:342:18
[INFO] [stdout]   33:     0x62d677a4371e - higher_order_operators::debounce_map_observable_notify_none::h25cb96edccbbd443
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/higher_order_operators.rs:520:6
[INFO] [stdout]   34:     0x62d677a44547 - higher_order_operators::debounce_map_observable_notify_none::{{closure}}::h5306d152cb735fdf
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/higher_order_operators.rs:478:47
[INFO] [stdout]   35:     0x62d677a0e526 - core::ops::function::FnOnce::call_once::hd2047cfe1f24b5b9
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   36:     0x62d677a826cb - core::ops::function::FnOnce::call_once::h0217b30cfdee2e67
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   37:     0x62d677a826cb - test::__rust_begin_short_backtrace::h6d98714a1e28f556
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:663:18
[INFO] [stdout]   38:     0x62d677a9605a - test::run_test_in_process::{{closure}}::he2c70d2634d3a3cc
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:686:74
[INFO] [stdout]   39:     0x62d677a9605a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h40a0a825bcf17fdd
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   40:     0x62d677a9605a - std::panicking::catch_unwind::do_call::h6c8eb5dd6e7b5975
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   41:     0x62d677a9605a - std::panicking::catch_unwind::h55455eac2972ad1e
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   42:     0x62d677a9605a - std::panic::catch_unwind::h0025465150a5e558
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   43:     0x62d677a9605a - test::run_test_in_process::hb61e682f9b630fbc
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:686:27
[INFO] [stdout]   44:     0x62d677a9605a - test::run_test::{{closure}}::hc2c2a7a38ab176e2
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:607:43
[INFO] [stdout]   45:     0x62d677a702f4 - test::run_test::{{closure}}::ha91867b85cd2a911
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:637:41
[INFO] [stdout]   46:     0x62d677a702f4 - std::sys::backtrace::__rust_begin_short_backtrace::ha00a9fe02049c339
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:160:18
[INFO] [stdout]   47:     0x62d677a73c22 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::hd629fba9153dfb55
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:92:13
[INFO] [stdout]   48:     0x62d677a73c22 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4189018816a5c5d9
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   49:     0x62d677a73c22 - std::panicking::catch_unwind::do_call::hf9fcdbca3c2e9877
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   50:     0x62d677a73c22 - std::panicking::catch_unwind::h97b92d88631c7c64
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   51:     0x62d677a73c22 - std::panic::catch_unwind::ha77cdbb68e725e5e
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   52:     0x62d677a73c22 - std::thread::lifecycle::spawn_unchecked::{{closure}}::h511f05bc1a132253
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:90:26
[INFO] [stdout]   53:     0x62d677a73c22 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6b68b31e9b685cb8
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   54:     0x62d677b84e5f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h22a27d165e4e871d
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   55:     0x62d677b84e5f - std::sys::thread::unix::Thread::new::thread_start::h45cc87bb053add0f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   56:     0x76832cb76aa4 - <unknown>
[INFO] [stdout]   57:     0x76832cc03a64 - clone
[INFO] [stdout]   58:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     debounce_map_observable_notify_none
[INFO] [stdout]     switch_map_observable
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 25.17s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "dbdb4dd7a7b55f62ab9fa41da8662ff35c9e0abe4423d8ff41a8c705d823170b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbdb4dd7a7b55f62ab9fa41da8662ff35c9e0abe4423d8ff41a8c705d823170b", kill_on_drop: false }`
[INFO] [stdout] dbdb4dd7a7b55f62ab9fa41da8662ff35c9e0abe4423d8ff41a8c705d823170b
