[INFO] fetching crate clear_on_drop 0.2.4...
[INFO] testing clear_on_drop-0.2.4 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate clear_on_drop 0.2.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate clear_on_drop 0.2.4 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate clear_on_drop 0.2.4
[INFO] finished tweaking crates.io crate clear_on_drop 0.2.4
[INFO] tweaked toml for crates.io crate clear_on_drop 0.2.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 438bdb17100b0a8e4e9798a36bdcffdc5faa6896149fa5a53321cd3c9a8906fb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "438bdb17100b0a8e4e9798a36bdcffdc5faa6896149fa5a53321cd3c9a8906fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "438bdb17100b0a8e4e9798a36bdcffdc5faa6896149fa5a53321cd3c9a8906fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "438bdb17100b0a8e4e9798a36bdcffdc5faa6896149fa5a53321cd3c9a8906fb", kill_on_drop: false }`
[INFO] [stdout] 438bdb17100b0a8e4e9798a36bdcffdc5faa6896149fa5a53321cd3c9a8906fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4cf5d23f903295b8ee53302dcd7eedfc8335ef1c7047a4a13ea291b34753078
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b4cf5d23f903295b8ee53302dcd7eedfc8335ef1c7047a4a13ea291b34753078", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling clear_on_drop v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/clear_stack_on_return.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |     hide_ptr::<&mut FnMut() -> R>(&mut f)()
[INFO] [stdout]    |                     ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> R`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.71s
[INFO] running `Command { std: "docker" "inspect" "b4cf5d23f903295b8ee53302dcd7eedfc8335ef1c7047a4a13ea291b34753078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4cf5d23f903295b8ee53302dcd7eedfc8335ef1c7047a4a13ea291b34753078", kill_on_drop: false }`
[INFO] [stdout] b4cf5d23f903295b8ee53302dcd7eedfc8335ef1c7047a4a13ea291b34753078
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76c51c06d142537b0da8644e9785039b4fcbe8d697047d0684e83be706b6e21e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "76c51c06d142537b0da8644e9785039b4fcbe8d697047d0684e83be706b6e21e", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/clear_stack_on_return.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |     hide_ptr::<&mut FnMut() -> R>(&mut f)()
[INFO] [stdout]    |                     ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> R`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling clear_on_drop v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/clear_stack_on_return.rs:30:21
[INFO] [stdout]    |
[INFO] [stdout] 30 |     hide_ptr::<&mut FnMut() -> R>(&mut f)()
[INFO] [stdout]    |                     ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> R`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "76c51c06d142537b0da8644e9785039b4fcbe8d697047d0684e83be706b6e21e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76c51c06d142537b0da8644e9785039b4fcbe8d697047d0684e83be706b6e21e", kill_on_drop: false }`
[INFO] [stdout] 76c51c06d142537b0da8644e9785039b4fcbe8d697047d0684e83be706b6e21e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4110d3d5fd1458583c4916d134e71a80b611e5bc401985a42f0aad9add64d718
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4110d3d5fd1458583c4916d134e71a80b611e5bc401985a42f0aad9add64d718", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 13 tests
[INFO] [stderr]   --> src/clear_stack_on_return.rs:30:21
[INFO] [stdout] test clear_on_drop::tests::into_string ... ok
[INFO] [stderr]    |
[INFO] [stdout] test clear_on_drop::tests::into_uncleared_string ... ok
[INFO] [stderr] 30 |     hide_ptr::<&mut FnMut() -> R>(&mut f)()
[INFO] [stdout] test clear_on_drop::tests::into_box ... ok
[INFO] [stderr]    |                     ^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut() -> R`
[INFO] [stdout] test clear_on_drop::tests::on_str_slice ... ok
[INFO] [stderr]    |
[INFO] [stdout] test hide::tests::hide_mem ... ok
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] test clear_on_drop::tests::on_string ... ok
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout] test clear_on_drop::tests::on_boxed_slice ... ok
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] test clear_on_drop::tests::on_fixed_size_array ... ok
[INFO] [stderr] 
[INFO] [stdout] test clear_on_drop::tests::into_uncleared_box ... ok
[INFO] [stderr] warning: `clear_on_drop` (lib) generated 1 warning
[INFO] [stdout] test clear_on_drop::tests::on_slice ... ok
[INFO] [stderr] warning: `clear_on_drop` (lib test) generated 1 warning (1 duplicate)
[INFO] [stdout] test hide::tests::hide_ptr ... ok
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] test clear_on_drop::tests::on_stack ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/clear_on_drop-855f03fb0de74af9)
[INFO] [stdout] test clear_on_drop::tests::on_box ... ok
[INFO] [stderr]    Doc-tests clear_on_drop
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/clear_on_drop.rs - clear_on_drop::ClearOnDrop (line 20) ... ok
[INFO] [stdout] test src/clear.rs - clear (line 7) ... ok
[INFO] [stdout] test src/clear_stack_on_return.rs - clear_stack_on_return::clear_stack_on_return (line 17) ... ok
[INFO] [stdout] test src/clear.rs - clear (line 21) ... ok
[INFO] [stdout] test src/clear_stack_on_return.rs - clear_stack_on_return::clear_stack_on_return_fnonce (line 40) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.80s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4110d3d5fd1458583c4916d134e71a80b611e5bc401985a42f0aad9add64d718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4110d3d5fd1458583c4916d134e71a80b611e5bc401985a42f0aad9add64d718", kill_on_drop: false }`
[INFO] [stdout] 4110d3d5fd1458583c4916d134e71a80b611e5bc401985a42f0aad9add64d718