[INFO] fetching crate run-down 0.1.1...
[INFO] testing run-down-0.1.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate run-down 0.1.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate run-down 0.1.1 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 run-down 0.1.1
[INFO] finished tweaking crates.io crate run-down 0.1.1
[INFO] tweaked toml for crates.io crate run-down 0.1.1 written to /workspace/builds/worker-9/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lazy-init v0.3.0
[INFO] [stderr]   Downloaded rsevents v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] a076fc8f468ff1b0b75419d98fa5f9a9d33bf3bf12d5fb2bb2d32f4d775f8d2b
[INFO] running `Command { std: "docker" "start" "-a" "a076fc8f468ff1b0b75419d98fa5f9a9d33bf3bf12d5fb2bb2d32f4d775f8d2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a076fc8f468ff1b0b75419d98fa5f9a9d33bf3bf12d5fb2bb2d32f4d775f8d2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a076fc8f468ff1b0b75419d98fa5f9a9d33bf3bf12d5fb2bb2d32f4d775f8d2b", kill_on_drop: false }`
[INFO] [stdout] a076fc8f468ff1b0b75419d98fa5f9a9d33bf3bf12d5fb2bb2d32f4d775f8d2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 3f00c258530a82eb4f27f2b584e574964cf1a2fb1ed5c1eb0e6409ef13277d9a
[INFO] running `Command { std: "docker" "start" "-a" "3f00c258530a82eb4f27f2b584e574964cf1a2fb1ed5c1eb0e6409ef13277d9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy-init v0.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling rsevents v0.2.1
[INFO] [stderr]    Compiling run-down v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.14s
[INFO] running `Command { std: "docker" "inspect" "3f00c258530a82eb4f27f2b584e574964cf1a2fb1ed5c1eb0e6409ef13277d9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f00c258530a82eb4f27f2b584e574964cf1a2fb1ed5c1eb0e6409ef13277d9a", kill_on_drop: false }`
[INFO] [stdout] 3f00c258530a82eb4f27f2b584e574964cf1a2fb1ed5c1eb0e6409ef13277d9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 34cc2f7f97b6f1864185c9d9d87c213b16bcdbec0e64c21940e10ff77bf3756e
[INFO] running `Command { std: "docker" "start" "-a" "34cc2f7f97b6f1864185c9d9d87c213b16bcdbec0e64c21940e10ff77bf3756e", kill_on_drop: false }`
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling run-down v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: bounds on `T: Drop` are most likely incorrect, consider instead using `std::mem::needs_drop` to detect whether a type can be trivially dropped
[INFO] [stdout]   --> tests/unit-tests.rs:19:24
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn is_droppable<T: Drop>() {}
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(drop_bounds)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "34cc2f7f97b6f1864185c9d9d87c213b16bcdbec0e64c21940e10ff77bf3756e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34cc2f7f97b6f1864185c9d9d87c213b16bcdbec0e64c21940e10ff77bf3756e", kill_on_drop: false }`
[INFO] [stdout] 34cc2f7f97b6f1864185c9d9d87c213b16bcdbec0e64c21940e10ff77bf3756e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] d6c447bd3f3a5b4a74aeeb5334c21228f53087a47e5d63f3c4823f6f455115b9
[INFO] running `Command { std: "docker" "start" "-a" "d6c447bd3f3a5b4a74aeeb5334c21228f53087a47e5d63f3c4823f6f455115b9", kill_on_drop: false }`
[INFO] [stderr] warning: bounds on `T: Drop` are most likely incorrect, consider instead using `std::mem::needs_drop` to detect whether a type can be trivially dropped
[INFO] [stderr]   --> tests/unit-tests.rs:19:24
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn is_droppable<T: Drop>() {}
[INFO] [stderr]    |                        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(drop_bounds)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `run-down` (test "unit-tests") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/run_down-eaf1aa070942843f)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test flags::test_rundown_flags_set_in_progress ... ok
[INFO] [stdout] test flags::test_to_flags ... ok
[INFO] [stdout] test flags::test_rundown_flags_refcount ... ok
[INFO] [stdout] test flags::test_rundown_flags_underflow_panic - should panic ... ok
[INFO] [stdout] test flags::test_rundown_flags_overflow_panic - should panic ... ok
[INFO] [stderr]      Running tests/unit-tests.rs (/opt/rustwide/target/debug/deps/unit_tests-dd12886d100b1da0)
[INFO] [stdout] test rundown_ref::test_wait_when_protected ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_acquisition_when_not_rundown ... ok
[INFO] [stdout] test test_re_init ... ok
[INFO] [stdout] test test_multiple_successive_waits ... ok
[INFO] [stdout] test test_acquisition_when_rundown ... ok
[INFO] [stdout] test test_rundown_guard_implements_drop ... ok
[INFO] [stdout] test test_usage_with_concurrency ... ok
[INFO] [stderr]    Doc-tests run-down
[INFO] [stdout] test test_re_init_panic_on_ref - should panic ... ok
[INFO] [stdout] test test_re_init_panic_without_rundown - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - readme_examples (line 116) ... ok
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d6c447bd3f3a5b4a74aeeb5334c21228f53087a47e5d63f3c4823f6f455115b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6c447bd3f3a5b4a74aeeb5334c21228f53087a47e5d63f3c4823f6f455115b9", kill_on_drop: false }`
[INFO] [stdout] d6c447bd3f3a5b4a74aeeb5334c21228f53087a47e5d63f3c4823f6f455115b9