[INFO] fetching crate vst 0.3.0...
[INFO] testing vst-0.3.0 against master#6c20ab744b0f82646d90ce9d25894823abc9c669 for pr-99093
[INFO] extracting crate vst 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate vst 0.3.0 on toolchain 6c20ab744b0f82646d90ce9d25894823abc9c669
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vst 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate vst 0.3.0
[INFO] tweaked toml for crates.io crate vst 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate vst 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38da14dd54ac87b63d30e736a2137f75095a33b93966ea387ee7c145b176a6b1
[INFO] running `Command { std: "docker" "start" "-a" "38da14dd54ac87b63d30e736a2137f75095a33b93966ea387ee7c145b176a6b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38da14dd54ac87b63d30e736a2137f75095a33b93966ea387ee7c145b176a6b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38da14dd54ac87b63d30e736a2137f75095a33b93966ea387ee7c145b176a6b1", kill_on_drop: false }`
[INFO] [stdout] 38da14dd54ac87b63d30e736a2137f75095a33b93966ea387ee7c145b176a6b1
[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=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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71435c7ad8e34c94c0be28390b8bb685b677525eb126fefcbb4cc16da5d6ff33
[INFO] running `Command { std: "docker" "start" "-a" "71435c7ad8e34c94c0be28390b8bb685b677525eb126fefcbb4cc16da5d6ff33", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling num_enum_derive v0.5.6
[INFO] [stderr]    Compiling num_enum v0.5.6
[INFO] [stderr]    Compiling vst v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.33s
[INFO] running `Command { std: "docker" "inspect" "71435c7ad8e34c94c0be28390b8bb685b677525eb126fefcbb4cc16da5d6ff33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71435c7ad8e34c94c0be28390b8bb685b677525eb126fefcbb4cc16da5d6ff33", kill_on_drop: false }`
[INFO] [stdout] 71435c7ad8e34c94c0be28390b8bb685b677525eb126fefcbb4cc16da5d6ff33
[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=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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8affdef37df9f955c33f4b850445391fab69107ae92d8e1aa1c5bd63e665fbff
[INFO] running `Command { std: "docker" "start" "-a" "8affdef37df9f955c33f4b850445391fab69107ae92d8e1aa1c5bd63e665fbff", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling vst v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.74s
[INFO] running `Command { std: "docker" "inspect" "8affdef37df9f955c33f4b850445391fab69107ae92d8e1aa1c5bd63e665fbff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8affdef37df9f955c33f4b850445391fab69107ae92d8e1aa1c5bd63e665fbff", kill_on_drop: false }`
[INFO] [stdout] 8affdef37df9f955c33f4b850445391fab69107ae92d8e1aa1c5bd63e665fbff
[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=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:ecb52c4cf6672b83cc996368a05b4a059042425f2b6ba9cd23a06cdead5d8d70" "/opt/rustwide/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 29ec80ca74a4603468988ed294b16f9ae206b5336105727dd468354ebce680fe
[INFO] running `Command { std: "docker" "start" "-a" "29ec80ca74a4603468988ed294b16f9ae206b5336105727dd468354ebce680fe", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/vst-4705207b0dd63bbd)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test api::tests::encode_and_decode_gives_back_original_message ... ok
[INFO] [stdout] test api::tests::message_survives_calling_events ... ok
[INFO] [stdout] test buffer::tests::buffer_zip ... ok
[INFO] [stdout] test buffer::tests::buffer_zip_fewer_inputs_than_outputs ... ok
[INFO] [stdout] test buffer::tests::from_raw ... ok
[INFO] [stdout] test plugin::tests::host_callbacks ... ok
[INFO] [stdout] test buffer::tests::buffer_zip_more_inputs_than_outputs ... ok
[INFO] [stdout] test tests::aeffect_created ... ok
[INFO] [stdout] test tests::aeffect_params ... ok
[INFO] [stdout] test tests::host_callback ... ok
[INFO] [stdout] test tests::plugin_deref ... ok
[INFO] [stdout] test tests::plugin_drop ... ok
[INFO] [stdout] test tests::plugin_no_drop ... ok
[INFO] [stdout] test plugin::tests::null_panic - should panic ... ok
[INFO] [stdout] test host::tests::host_buffer ... ok
[INFO] [stdout] test util::parameter_transfer::tests::parameter_transfer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.29s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests vst
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/api.rs - api::AEffect::flags (line 86) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 36) - compile ... ok
[INFO] [stdout] test src/plugin.rs - plugin::Plugin::process_f64 (line 607) - compile ... ok
[INFO] [stdout] test src/plugin.rs - plugin::Plugin::process (line 564) - compile ... ok
[INFO] [stdout] test src/buffer.rs - buffer::SendEventBuffer::send_events (line 413) - compile ... ok
[INFO] [stdout] test src/api.rs - api::Events::events (line 452) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 72) - compile ... ok
[INFO] [stdout] test src/host.rs - host::PluginLoader<T>::load (line 384) - compile ... ok
[INFO] [stdout] test src/plugin.rs - plugin::Plugin::new (line 483) ... ok
[INFO] [stdout] test src/api.rs - api::Event::event_type (line 527) ... ok
[INFO] [stdout] test src/api.rs - api::Event (line 514) ... ok
[INFO] [stdout] test src/host.rs - host::HostBuffer (line 789) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.21s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "29ec80ca74a4603468988ed294b16f9ae206b5336105727dd468354ebce680fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29ec80ca74a4603468988ed294b16f9ae206b5336105727dd468354ebce680fe", kill_on_drop: false }`
[INFO] [stdout] 29ec80ca74a4603468988ed294b16f9ae206b5336105727dd468354ebce680fe