[INFO] fetching crate run-down 0.1.1...
[INFO] testing run-down-0.1.1 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate run-down 0.1.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate run-down 0.1.1 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d74848cfc9c13ec9c2efa539ec72b8fb6bb1a849008db746d89f1df0217374f
[INFO] running `Command { std: "docker" "start" "-a" "7d74848cfc9c13ec9c2efa539ec72b8fb6bb1a849008db746d89f1df0217374f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d74848cfc9c13ec9c2efa539ec72b8fb6bb1a849008db746d89f1df0217374f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d74848cfc9c13ec9c2efa539ec72b8fb6bb1a849008db746d89f1df0217374f", kill_on_drop: false }`
[INFO] [stdout] 7d74848cfc9c13ec9c2efa539ec72b8fb6bb1a849008db746d89f1df0217374f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a3270c3633305e8360912887aa981a378505d19ccafb759ed6a10b03b084cf2
[INFO] running `Command { std: "docker" "start" "-a" "6a3270c3633305e8360912887aa981a378505d19ccafb759ed6a10b03b084cf2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[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 3.00s
[INFO] running `Command { std: "docker" "inspect" "6a3270c3633305e8360912887aa981a378505d19ccafb759ed6a10b03b084cf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a3270c3633305e8360912887aa981a378505d19ccafb759ed6a10b03b084cf2", kill_on_drop: false }`
[INFO] [stdout] 6a3270c3633305e8360912887aa981a378505d19ccafb759ed6a10b03b084cf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8626ab9c02534817083deae5a686f2ec5b4c40564e263da6d518c75699930595
[INFO] running `Command { std: "docker" "start" "-a" "8626ab9c02534817083deae5a686f2ec5b4c40564e263da6d518c75699930595", kill_on_drop: false }`
[INFO] [stderr]    Compiling ansi_term v0.11.0
[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 useless, consider instead using `std::mem::needs_drop` to detect if a type has a destructor
[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 2.12s
[INFO] running `Command { std: "docker" "inspect" "8626ab9c02534817083deae5a686f2ec5b4c40564e263da6d518c75699930595", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8626ab9c02534817083deae5a686f2ec5b4c40564e263da6d518c75699930595", kill_on_drop: false }`
[INFO] [stdout] 8626ab9c02534817083deae5a686f2ec5b4c40564e263da6d518c75699930595
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2ba83906b1330727f6d671cf1d46c69978fecd9a7a81d7056131e25e694bda24
[INFO] running `Command { std: "docker" "start" "-a" "2ba83906b1330727f6d671cf1d46c69978fecd9a7a81d7056131e25e694bda24", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: bounds on `T: Drop` are useless, consider instead using `std::mem::needs_drop` to detect if a type has a destructor
[INFO] [stdout] running 6 tests
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/run_down-282b5ae216e80c04)
[INFO] [stdout] test flags::test_to_flags ... ok
[INFO] [stdout] test flags::test_rundown_flags_set_in_progress ... ok
[INFO] [stdout] test flags::test_rundown_flags_refcount ... ok
[INFO] [stdout] test rundown_ref::test_wait_when_protected ... ok
[INFO] [stdout] test flags::test_rundown_flags_overflow_panic ... ok
[INFO] [stdout] test flags::test_rundown_flags_underflow_panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/unit-tests.rs (/opt/rustwide/target/debug/deps/unit_tests-19a6e19f1e85b972)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_multiple_successive_waits ... ok
[INFO] [stdout] test test_rundown_guard_implements_drop ... ok
[INFO] [stdout] test test_acquisition_when_rundown ... ok
[INFO] [stdout] test test_re_init ... ok
[INFO] [stdout] test test_acquisition_when_not_rundown ... ok
[INFO] [stdout] test test_re_init_panic_on_ref ... ok
[INFO] [stdout] test test_re_init_panic_without_rundown ... ok
[INFO] [stderr]    Doc-tests run-down
[INFO] [stdout] test test_usage_with_concurrency ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 16) ... ok
[INFO] [stdout] test src/lib.rs - readme_examples (line 116) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.54s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2ba83906b1330727f6d671cf1d46c69978fecd9a7a81d7056131e25e694bda24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ba83906b1330727f6d671cf1d46c69978fecd9a7a81d7056131e25e694bda24", kill_on_drop: false }`
[INFO] [stdout] 2ba83906b1330727f6d671cf1d46c69978fecd9a7a81d7056131e25e694bda24