[INFO] fetching crate workerpool 1.2.0... [INFO] testing workerpool-1.2.0 against master#61223975d46f794466efa832bc7562b9707ecc46+rustflags=-Copt-level=3 for pr-121282 [INFO] extracting crate workerpool 1.2.0 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate workerpool 1.2.0 on toolchain 61223975d46f794466efa832bc7562b9707ecc46 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate workerpool 1.2.0 [INFO] finished tweaking crates.io crate workerpool 1.2.0 [INFO] tweaked toml for crates.io crate workerpool 1.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ad608366fb99e5fe5e30db574db37543d3334bd01f55b590af739252b9c0d8d0 [INFO] running `Command { std: "docker" "start" "-a" "ad608366fb99e5fe5e30db574db37543d3334bd01f55b590af739252b9c0d8d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ad608366fb99e5fe5e30db574db37543d3334bd01f55b590af739252b9c0d8d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ad608366fb99e5fe5e30db574db37543d3334bd01f55b590af739252b9c0d8d0", kill_on_drop: false }` [INFO] [stdout] ad608366fb99e5fe5e30db574db37543d3334bd01f55b590af739252b9c0d8d0 [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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2bc14fd5ba7275fd53f262c6b948be01b39b63bcc0e250d1755b871a7945fcc3 [INFO] running `Command { std: "docker" "start" "-a" "2bc14fd5ba7275fd53f262c6b948be01b39b63bcc0e250d1755b871a7945fcc3", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling stable_deref_trait v1.2.0 [INFO] [stderr] Compiling scopeguard v0.3.3 [INFO] [stderr] Compiling num_cpus v1.16.0 [INFO] [stderr] Compiling owning_ref v0.4.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling lock_api v0.1.5 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling smallvec v0.6.14 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling parking_lot v0.7.1 [INFO] [stderr] Compiling workerpool v1.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/lib.rs:164:27 [INFO] [stdout] | [INFO] [stdout] 164 | fn execute(&mut self, Self::Input) -> Self::Output; [INFO] [stdout] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Input` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:1023:33 [INFO] [stdout] | [INFO] [stdout] 1023 | pub struct Thunk<'a, T>(Box + Send + 'a>); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 1023 | pub struct Thunk<'a, T>(Box + Send + 'a>); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:846:42 [INFO] [stdout] | [INFO] [stdout] 846 | self.shared_data.join_generation.compare_and_swap( [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.63s [INFO] running `Command { std: "docker" "inspect" "2bc14fd5ba7275fd53f262c6b948be01b39b63bcc0e250d1755b871a7945fcc3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2bc14fd5ba7275fd53f262c6b948be01b39b63bcc0e250d1755b871a7945fcc3", kill_on_drop: false }` [INFO] [stdout] 2bc14fd5ba7275fd53f262c6b948be01b39b63bcc0e250d1755b871a7945fcc3 [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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a17c3713c3c44a7e8702928ef18a3afd55941ef9e9d9b5daa650040ed1717105 [INFO] running `Command { std: "docker" "start" "-a" "a17c3713c3c44a7e8702928ef18a3afd55941ef9e9d9b5daa650040ed1717105", kill_on_drop: false }` [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/lib.rs:164:27 [INFO] [stdout] | [INFO] [stdout] 164 | fn execute(&mut self, Self::Input) -> Self::Output; [INFO] [stdout] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Input` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:1023:33 [INFO] [stdout] | [INFO] [stdout] 1023 | pub struct Thunk<'a, T>(Box + Send + 'a>); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 1023 | pub struct Thunk<'a, T>(Box + Send + 'a>); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:846:42 [INFO] [stdout] | [INFO] [stdout] 846 | self.shared_data.join_generation.compare_and_swap( [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling workerpool v1.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/lib.rs:164:27 [INFO] [stdout] | [INFO] [stdout] 164 | fn execute(&mut self, Self::Input) -> Self::Output; [INFO] [stdout] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Input` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/lib.rs:1023:33 [INFO] [stdout] | [INFO] [stdout] 1023 | pub struct Thunk<'a, T>(Box + Send + 'a>); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] help: if this is an object-safe trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 1023 | pub struct Thunk<'a, T>(Box + Send + 'a>); [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stdout] --> src/lib.rs:846:42 [INFO] [stdout] | [INFO] [stdout] 846 | self.shared_data.join_generation.compare_and_swap( [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stdout] --> src/lib.rs:1205:17 [INFO] [stdout] | [INFO] [stdout] 1205 | tx.send(1).is_ok(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 1205 | let _ = tx.send(1).is_ok(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 3.79s [INFO] running `Command { std: "docker" "inspect" "a17c3713c3c44a7e8702928ef18a3afd55941ef9e9d9b5daa650040ed1717105", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a17c3713c3c44a7e8702928ef18a3afd55941ef9e9d9b5daa650040ed1717105", kill_on_drop: false }` [INFO] [stdout] a17c3713c3c44a7e8702928ef18a3afd55941ef9e9d9b5daa650040ed1717105 [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=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 75324135ebe55e953d132614937db6ee3a882bb8b0cb79d3712e61ba97272359 [INFO] running `Command { std: "docker" "start" "-a" "75324135ebe55e953d132614937db6ee3a882bb8b0cb79d3712e61ba97272359", kill_on_drop: false }` [INFO] [stderr] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] [INFO] [stderr] --> src/lib.rs:164:27 [INFO] [stdout] running 21 tests [INFO] [stderr] | [INFO] [stderr] 164 | fn execute(&mut self, Self::Input) -> Self::Output; [INFO] [stderr] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: Self::Input` [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stderr] = note: for more information, see issue #41686 [INFO] [stderr] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/lib.rs:1023:33 [INFO] [stderr] | [INFO] [stderr] 1023 | pub struct Thunk<'a, T>(Box + Send + 'a>); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] help: if this is an object-safe trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 1023 | pub struct Thunk<'a, T>(Box + Send + 'a>); [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead [INFO] [stderr] --> src/lib.rs:846:42 [INFO] [stderr] | [INFO] [stderr] 846 | self.shared_data.join_generation.compare_and_swap( [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused return value of `Result::::is_ok` that must be used [INFO] [stderr] --> src/lib.rs:1205:17 [INFO] [stderr] | [INFO] [stderr] 1205 | tx.send(1).is_ok(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you intended to assert that this is ok, consider `.unwrap()` instead [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 1205 | let _ = tx.send(1).is_ok(); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `workerpool` (lib) generated 3 warnings (run `cargo fix --lib -p workerpool` to apply 2 suggestions) [INFO] [stderr] warning: `workerpool` (lib test) generated 4 warnings (3 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/workerpool-8ea40e745e9d1281) [INFO] [stdout] test test::test_send_shared_data ... ok [INFO] [stdout] test test::test_empty_pool ... ok [INFO] [stdout] test test::test_send ... ok [INFO] [stdout] test test::test_cloned_eq ... ok [INFO] [stdout] test test::test_sync_shared_data ... ok [INFO] [stdout] test test::test_shrink ... ok [INFO] [stdout] test test::test_works ... ok [INFO] [stdout] test test::test_zero_tasks_panic - should panic ... ok [INFO] [stdout] test test::test_multi_join ... FAILED [INFO] [stdout] test test::test_name ... ok [INFO] [stdout] test test::test_should_not_panic_on_drop_if_subtasks_panic_after_drop ... ok [INFO] [stdout] test test::test_recovery_from_subtask_panic ... ok [INFO] [stdout] test test::test_active_count ... ok [INFO] [stdout] test test::test_debug ... ok [INFO] [stdout] test test::test_massive_task_creation ... ok [INFO] [stdout] test test::test_join_wavesurfer ... ok [INFO] [stdout] test test::test_clone ... ok [INFO] [stdout] test test::test_no_fun_or_joy ... ok [INFO] [stdout] test test::test_set_num_threads_decreasing ... ok [INFO] [stdout] test test::test_repeated_join ... ok [INFO] [stdout] test test::test_set_num_threads_increasing ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- test::test_multi_join stdout ---- [INFO] [stdout] thread 'test::test_multi_join' panicked at src/lib.rs:1383:9: [INFO] [stdout] assertion `left == right` failed [INFO] [stdout] left: Ok(0) [INFO] [stdout] right: Err(Empty) [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x557808704056 - std::backtrace_rs::backtrace::libunwind::trace::h68e08e31a5edd928 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x557808704056 - std::backtrace_rs::backtrace::trace_unsynchronized::hc8e4d3186f828cab [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x557808704056 - std::sys_common::backtrace::_print_fmt::hdcdca1c0665ccefc [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x557808704056 - ::fmt::h752651e67cc277a4 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x55780872ba0c - core::fmt::rt::Argument::fmt::h4e7c3e22f7386287 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x55780872ba0c - core::fmt::write::hd44b1d45ba162e21 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x55780870145f - std::io::Write::write_fmt::hdb67a49a0754f939 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/io/mod.rs:1846:15 [INFO] [stdout] 7: 0x557808703e04 - std::sys_common::backtrace::_print::hbca331de1381491f [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x557808703e04 - std::sys_common::backtrace::print::hade58077d78c625d [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x557808705afb - std::panicking::default_hook::{{closure}}::hc9f80a2cdc6be4c4 [INFO] [stdout] 10: 0x5578087057cd - std::panicking::default_hook::h1fc68886dc215416 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x5578086cd7d7 - as core::ops::function::Fn>::call::ha16821620acc0367 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 12: 0x5578086cd7d7 - test::test_main::{{closure}}::h1a3ed7cd910c2945 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:137:21 [INFO] [stdout] 13: 0x557808706130 - as core::ops::function::Fn>::call::he260753ff79c0e70 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 14: 0x557808706130 - std::panicking::rust_panic_with_hook::heff73da0ddd67492 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:786:13 [INFO] [stdout] 15: 0x557808705e72 - std::panicking::begin_panic_handler::{{closure}}::h141137f9c7de1e02 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:660:13 [INFO] [stdout] 16: 0x557808704536 - std::sys_common::backtrace::__rust_end_short_backtrace::hbde4e66d30db627d [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x557808705ba4 - rust_begin_unwind [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:648:5 [INFO] [stdout] 18: 0x557808676715 - core::panicking::panic_fmt::h92fcc83e4972ca9b [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x557808676a5b - core::panicking::assert_failed_inner::h25ff1575da1dfede [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/panicking.rs:342:17 [INFO] [stdout] 20: 0x55780867212f - core::panicking::assert_failed::h7ad180ef6655cadf [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/panicking.rs:297:5 [INFO] [stdout] 21: 0x5578086903f1 - workerpool::test::test_multi_join::heb299475b0e42652 [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:1383:9 [INFO] [stdout] 22: 0x557808697a19 - workerpool::test::test_multi_join::{{closure}}::he1f711509ac2945f [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:1352:25 [INFO] [stdout] 23: 0x557808697a19 - core::ops::function::FnOnce::call_once::h24ff5ecc5e405bc6 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5578086d2f3f - core::ops::function::FnOnce::call_once::hb5d425830acba2e8 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x5578086d2f3f - test::__rust_begin_short_backtrace::h8054e86d0f5ccc86 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:620:18 [INFO] [stdout] 26: 0x5578086d1b50 - test::run_test_in_process::{{closure}}::h85d13cb166c10721 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:643:60 [INFO] [stdout] 27: 0x5578086d1b50 - as core::ops::function::FnOnce<()>>::call_once::hc3dc86b8d5205a04 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x5578086d1b50 - std::panicking::try::do_call::hc17666b06748adad [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:555:40 [INFO] [stdout] 29: 0x5578086d1b50 - std::panicking::try::h1e9fba0c97684d1d [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:519:19 [INFO] [stdout] 30: 0x5578086d1b50 - std::panic::catch_unwind::h8328c2da9899627c [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x5578086d1b50 - test::run_test_in_process::hf19a99f254958c9c [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:643:27 [INFO] [stdout] 32: 0x5578086d1b50 - test::run_test::{{closure}}::hba6ab6b94e515411 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:566:43 [INFO] [stdout] 33: 0x557808699e93 - test::run_test::{{closure}}::h6ac7c2253cb9cc0f [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:594:41 [INFO] [stdout] 34: 0x557808699e93 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb4fbc53b7e758a6f [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x55780869ebbf - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha24970823708ac98 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/thread/mod.rs:528:17 [INFO] [stdout] 36: 0x55780869ebbf - as core::ops::function::FnOnce<()>>::call_once::h16db0733eff2a03c [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x55780869ebbf - std::panicking::try::do_call::hc2890dbc9a490eee [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:555:40 [INFO] [stdout] 38: 0x55780869ebbf - std::panicking::try::ha67ad75b01f98422 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:519:19 [INFO] [stdout] 39: 0x55780869ebbf - std::panic::catch_unwind::h26725df9ddb3fcd2 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x55780869ebbf - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0e59407b0ff3ed8 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/thread/mod.rs:527:30 [INFO] [stdout] 41: 0x55780869ebbf - core::ops::function::FnOnce::call_once{{vtable.shim}}::hd4eb105f82d3bb8e [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x55780870a3d5 - as core::ops::function::FnOnce>::call_once::h28564f61ef15890d [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 43: 0x55780870a3d5 - as core::ops::function::FnOnce>::call_once::h03728738d990d027 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 44: 0x55780870a3d5 - std::sys::pal::unix::thread::Thread::new::thread_start::heb455c9485795637 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys/pal/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f8ee8307ac3 - [INFO] [stdout] 46: 0x7f8ee8398bf4 - __clone [INFO] [stdout] 47: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] test::test_multi_join [INFO] [stdout] [INFO] [stdout] test result: FAILED. 20 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 24.09s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--lib` [INFO] running `Command { std: "docker" "inspect" "75324135ebe55e953d132614937db6ee3a882bb8b0cb79d3712e61ba97272359", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "75324135ebe55e953d132614937db6ee3a882bb8b0cb79d3712e61ba97272359", kill_on_drop: false }` [INFO] [stdout] 75324135ebe55e953d132614937db6ee3a882bb8b0cb79d3712e61ba97272359