[INFO] fetching crate widestring 0.4.3...
[INFO] building widestring-0.4.3 against try#d5c88c22807925c189328ef9d923c5d2b11a95b8+rustflags=-Zprofile-closures for pr-87066-3
[INFO] extracting crate widestring 0.4.3 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate widestring 0.4.3 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate widestring 0.4.3
[INFO] finished tweaking crates.io crate widestring 0.4.3
[INFO] tweaked toml for crates.io crate widestring 0.4.3 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c40fbe1da7b387dd190fdfff8a295f9cfed28be080473c40cc65ee92817069b7
[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" "c40fbe1da7b387dd190fdfff8a295f9cfed28be080473c40cc65ee92817069b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c40fbe1da7b387dd190fdfff8a295f9cfed28be080473c40cc65ee92817069b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c40fbe1da7b387dd190fdfff8a295f9cfed28be080473c40cc65ee92817069b7", kill_on_drop: false }`
[INFO] [stdout] c40fbe1da7b387dd190fdfff8a295f9cfed28be080473c40cc65ee92817069b7
[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=forbid -Zprofile-closures" "-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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2eed4ab1790a8479271f643d77b2dfdc67f8ae0189b4aacb9f94e7f5b42d3b8a
[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" "2eed4ab1790a8479271f643d77b2dfdc67f8ae0189b4aacb9f94e7f5b42d3b8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling widestring v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ucstring.rs:784:13
[INFO] [stdout]     |
[INFO] [stdout] 784 |             ManuallyDrop::new(chars);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 184 |     unused,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` implied by `#[warn(unused)]`
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ucstring.rs:826:13
[INFO] [stdout]     |
[INFO] [stdout] 826 |             ManuallyDrop::new(chars);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ucstring.rs:848:13
[INFO] [stdout]     |
[INFO] [stdout] 848 |             ManuallyDrop::new(chars);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ucstring.rs:868:13
[INFO] [stdout]     |
[INFO] [stdout] 868 |             ManuallyDrop::new(chars);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ustring.rs:402:17
[INFO] [stdout]     |
[INFO] [stdout] 402 |                 ManuallyDrop::new(chars);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (d1a57972805b87ff, da6ed7b24b6e4120), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (2fb982743b841b0c, 37b319c05dcf95d0), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (56f47c178ff78d92, c0ca2e33a179c0d6), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (f9bcc68f63c27bd, d260b58c743a310d), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (6b182fb6f17065a7, 2061b5b1d6fafb56), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (c8c4dbb25eb177ae, af6f6e2f93c2f5a7), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (1590d5dbcf0854d, dd4094ea6bcd82c7), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (a78354c6e77392e6, 3090ff7bfe6639f7), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (3f0940037be2a2c, 2d8b18976a385b7d), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (fbffb903bf1ecbfc, b74ee9d28c75b664), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (5ff831b6b017f333, aa09ec7a26a79c84), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (16e040969a0c65c8, 604999700965db64), 0, 0
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "2eed4ab1790a8479271f643d77b2dfdc67f8ae0189b4aacb9f94e7f5b42d3b8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eed4ab1790a8479271f643d77b2dfdc67f8ae0189b4aacb9f94e7f5b42d3b8a", kill_on_drop: false }`
[INFO] [stdout] 2eed4ab1790a8479271f643d77b2dfdc67f8ae0189b4aacb9f94e7f5b42d3b8a
[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=forbid -Zprofile-closures" "-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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76e35b109a7d4a3766387da64b34fb98238a011b53be9717bc786f4b86302db7
[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" "76e35b109a7d4a3766387da64b34fb98238a011b53be9717bc786f4b86302db7", kill_on_drop: false }`
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ucstring.rs:784:13
[INFO] [stdout]     |
[INFO] [stdout] 784 |             ManuallyDrop::new(chars);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 184 |     unused,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` implied by `#[warn(unused)]`
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ucstring.rs:826:13
[INFO] [stdout]     |
[INFO] [stdout] 826 |             ManuallyDrop::new(chars);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (d1a57972805b87ff, da6ed7b24b6e4120), 0, 0
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ucstring.rs:848:13
[INFO] [stdout]     |
[INFO] [stdout] 848 |             ManuallyDrop::new(chars);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (2fb982743b841b0c, 37b319c05dcf95d0), 0, 0
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ucstring.rs:868:13
[INFO] [stdout]     |
[INFO] [stdout] 868 |             ManuallyDrop::new(chars);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (56f47c178ff78d92, c0ca2e33a179c0d6), 0, 0
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ustring.rs:402:17
[INFO] [stdout]     |
[INFO] [stdout] 402 |                 ManuallyDrop::new(chars);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (f9bcc68f63c27bd, d260b58c743a310d), 0, 0
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (6b182fb6f17065a7, 2061b5b1d6fafb56), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (c8c4dbb25eb177ae, af6f6e2f93c2f5a7), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (1590d5dbcf0854d, dd4094ea6bcd82c7), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (a78354c6e77392e6, 3090ff7bfe6639f7), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (3f0940037be2a2c, 2d8b18976a385b7d), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (fbffb903bf1ecbfc, b74ee9d28c75b664), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (5ff831b6b017f333, aa09ec7a26a79c84), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: widestring, (16e040969a0c65c8, 604999700965db64), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: build_script_build, (1a08b09c9006267c, 586e7532e828082f), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: build_script_build, (4259c165e6546415, 2b5a7175a495a9df), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: build_script_build, (29299d895c10ecd9, 23863cbe4fcf4edd), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: build_script_build, (a2e09d845b56c4fc, dbe368aece914ec8), 0, 0
[INFO] [stderr] SG_CR_Eslkdjf: build_script_build, (931d1c49a641aa4e, be2d5f492095bb08), 0, 0
[INFO] [stderr]    Compiling widestring v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ucstring.rs:784:13
[INFO] [stdout]     |
[INFO] [stdout] 784 |             ManuallyDrop::new(chars);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:184:5
[INFO] [stdout]     |
[INFO] [stdout] 184 |     unused,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` implied by `#[warn(unused)]`
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ucstring.rs:826:13
[INFO] [stdout]     |
[INFO] [stdout] 826 |             ManuallyDrop::new(chars);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ucstring.rs:848:13
[INFO] [stdout]     |
[INFO] [stdout] 848 |             ManuallyDrop::new(chars);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ucstring.rs:868:13
[INFO] [stdout]     |
[INFO] [stdout] 868 |             ManuallyDrop::new(chars);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `ManuallyDrop::<T>::new` that must be used
[INFO] [stdout]    --> src/ustring.rs:402:17
[INFO] [stdout]     |
[INFO] [stdout] 402 |                 ManuallyDrop::new(chars);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the wrapper, you can use `mem::forget` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `Command { std: "docker" "inspect" "76e35b109a7d4a3766387da64b34fb98238a011b53be9717bc786f4b86302db7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76e35b109a7d4a3766387da64b34fb98238a011b53be9717bc786f4b86302db7", kill_on_drop: false }`
[INFO] [stdout] 76e35b109a7d4a3766387da64b34fb98238a011b53be9717bc786f4b86302db7