[INFO] fetching crate signals2 0.3.1...
[INFO] testing signals2-0.3.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate signals2 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate signals2 0.3.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate signals2 0.3.1
[INFO] finished tweaking crates.io crate signals2 0.3.1
[INFO] tweaked toml for crates.io crate signals2 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02a6f4c3513ca364be5ce2dc2c741136ec6f549e52103457bb050979e72cb41b
[INFO] running `Command { std: "docker" "start" "-a" "02a6f4c3513ca364be5ce2dc2c741136ec6f549e52103457bb050979e72cb41b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02a6f4c3513ca364be5ce2dc2c741136ec6f549e52103457bb050979e72cb41b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02a6f4c3513ca364be5ce2dc2c741136ec6f549e52103457bb050979e72cb41b", kill_on_drop: false }`
[INFO] [stdout] 02a6f4c3513ca364be5ce2dc2c741136ec6f549e52103457bb050979e72cb41b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b16b72ad06ea3a0734fa7ff4801c6f56fe738a4445bd26cfad241200814a76a6
[INFO] running `Command { std: "docker" "start" "-a" "b16b72ad06ea3a0734fa7ff4801c6f56fe738a4445bd26cfad241200814a76a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling signals2 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.63s
[INFO] running `Command { std: "docker" "inspect" "b16b72ad06ea3a0734fa7ff4801c6f56fe738a4445bd26cfad241200814a76a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b16b72ad06ea3a0734fa7ff4801c6f56fe738a4445bd26cfad241200814a76a6", kill_on_drop: false }`
[INFO] [stdout] b16b72ad06ea3a0734fa7ff4801c6f56fe738a4445bd26cfad241200814a76a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f7976a30a2e3b6930ef88bb0e849f3bbd4685f3caa5b2cacf87053b714ae3bb
[INFO] running `Command { std: "docker" "start" "-a" "5f7976a30a2e3b6930ef88bb0e849f3bbd4685f3caa5b2cacf87053b714ae3bb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling signals2 v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.01s
[INFO] running `Command { std: "docker" "inspect" "5f7976a30a2e3b6930ef88bb0e849f3bbd4685f3caa5b2cacf87053b714ae3bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f7976a30a2e3b6930ef88bb0e849f3bbd4685f3caa5b2cacf87053b714ae3bb", kill_on_drop: false }`
[INFO] [stdout] 5f7976a30a2e3b6930ef88bb0e849f3bbd4685f3caa5b2cacf87053b714ae3bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 87864ea0f8e92f61a4478f8d31db317cd613fb5a72b9fb8c8ebf362e75df594e
[INFO] running `Command { std: "docker" "start" "-a" "87864ea0f8e92f61a4478f8d31db317cd613fb5a72b9fb8c8ebf362e75df594e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/signals2-005883c730db3298)
[INFO] [stdout] running 3 tests
[INFO] [stdout] test combiner::tests::default_combiner_test ... ok
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-97d04eeff6a8ca9d)
[INFO] [stdout] test combiner::tests::sum_combiner_test ... ok
[INFO] [stdout] test combiner::tests::vec_combiner_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test connection_block_test ... ok
[INFO] [stdout] test emit_handle_test ... ok
[INFO] [stdout] test connect_handle_test ... ok
[INFO] [stdout] test block_while_emitting ... ok
[INFO] [stdout] test disconnect_test ... ok
[INFO] [stdout] test connect_while_emitting ... ok
[INFO] [stdout] test basic_signal_test ... ok
[INFO] [stdout] test mutually_recursive_connect_test ... ok
[INFO] [stdout] test position_group_order_test ... ok
[INFO] [stdout] test weak_signal_test ... ok
[INFO] [stdout] test recursive_connect_test ... ok
[INFO] [stdout] test lazy_slots_test ... ok
[INFO] [stdout] test disconnect_while_emitting ... ok
[INFO] [stdout] test async_emit_test ... ok
[INFO] [stdout] test async_disconnect_test ... ok
[INFO] [stdout] test signal_emitting_cloned_block_test ... ok
[INFO] [stderr]    Doc-tests signals2
[INFO] [stdout] test async_connect_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.08s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/connect.rs - connect::SharedConnectionBlock (line 355) ... ok
[INFO] [stdout] test src/lib.rs - WeakSignal (line 200) ... ok
[INFO] [stdout] test src/lib.rs - Signal (line 49) ... ok
[INFO] [stdout] test src/lib.rs - Signal (line 69) ... ok
[INFO] [stdout] test src/connect.rs - connect::Connection (line 322) ... ok
[INFO] [stdout] test src/lib.rs - Signal (line 79) ... ok
[INFO] [stdout] test src/lib.rs - Signal (line 59) ... ok
[INFO] [stdout] test src/connect.rs - connect::ScopedConnection (line 338) ... ok
[INFO] [stdout] test src/connect.rs - connect::SharedConnectionBlock (line 377) ... ok
[INFO] [stdout] test src/lib.rs - Signal<Args, R, C, G>::clone (line 109) ... ok
[INFO] [stdout] test src/lib.rs - EmitHandle (line 293) ... ok
[INFO] [stdout] test src/lib.rs - ConnectHandle (line 263) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.48s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "87864ea0f8e92f61a4478f8d31db317cd613fb5a72b9fb8c8ebf362e75df594e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87864ea0f8e92f61a4478f8d31db317cd613fb5a72b9fb8c8ebf362e75df594e", kill_on_drop: false }`
[INFO] [stdout] 87864ea0f8e92f61a4478f8d31db317cd613fb5a72b9fb8c8ebf362e75df594e