[INFO] fetching crate pi_lfstack 0.1.5...
[INFO] checking pi_lfstack-0.1.5 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] extracting crate pi_lfstack 0.1.5 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate pi_lfstack 0.1.5 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pi_lfstack 0.1.5
[INFO] finished tweaking crates.io crate pi_lfstack 0.1.5
[INFO] tweaked toml for crates.io crate pi_lfstack 0.1.5 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding cfg-if v0.1.10 (available: v1.0.0)
[INFO] [stderr]       Adding crossbeam-channel v0.3.9 (available: v0.5.13)
[INFO] [stderr]       Adding crossbeam-utils v0.6.6 (available: v0.8.20)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24ad7766e8519eb3b129613fc19aca3fa043ef59f3e19701249cddd75309f291
[INFO] running `Command { std: "docker" "start" "-a" "24ad7766e8519eb3b129613fc19aca3fa043ef59f3e19701249cddd75309f291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24ad7766e8519eb3b129613fc19aca3fa043ef59f3e19701249cddd75309f291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24ad7766e8519eb3b129613fc19aca3fa043ef59f3e19701249cddd75309f291", kill_on_drop: false }`
[INFO] [stdout] 24ad7766e8519eb3b129613fc19aca3fa043ef59f3e19701249cddd75309f291
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97e8f39ddc360972425c4b7b6cdbbe0ed6d024e0e2e6a3c110935d5ec30bd130
[INFO] running `Command { std: "docker" "start" "-a" "97e8f39ddc360972425c4b7b6cdbbe0ed6d024e0e2e6a3c110935d5ec30bd130", kill_on_drop: false }`
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking pi_lfstack v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable`
[INFO] [stdout]   --> src/lib.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(all(feature="unstable", any(target_arch = "x86", target_arch = "x86_64")))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `unstable` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable`
[INFO] [stdout]   --> src/lib.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[cfg(all(not(feature="unstable"), any(target_arch = "x86", target_arch = "x86_64")))]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `unstable` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable`
[INFO] [stdout]   --> src/lib.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(all(feature="unstable", any(target_arch = "x86", target_arch = "x86_64")))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `unstable` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `unstable`
[INFO] [stdout]   --> src/lib.rs:16:15
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[cfg(all(not(feature="unstable"), any(target_arch = "x86", target_arch = "x86_64")))]
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^ help: remove the condition
[INFO] [stdout]    |
[INFO] [stdout]    = note: no expected values for `feature`
[INFO] [stdout]    = help: consider adding `unstable` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:124:37
[INFO] [stdout]     |
[INFO] [stdout] 124 | ...                   Box::into_raw(last_frame); //将下一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 124 |                                     let _ = Box::into_raw(last_frame); //将下一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:124:37
[INFO] [stdout]     |
[INFO] [stdout] 124 | ...                   Box::into_raw(last_frame); //将下一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 124 |                                     let _ = Box::into_raw(last_frame); //将下一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:171:37
[INFO] [stdout]     |
[INFO] [stdout] 171 | ...                   Box::into_raw(last_frame); //将下一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 171 |                                     let _ = Box::into_raw(last_frame); //将下一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:171:37
[INFO] [stdout]     |
[INFO] [stdout] 171 | ...                   Box::into_raw(last_frame); //将下一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 171 |                                     let _ = Box::into_raw(last_frame); //将下一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:213:33
[INFO] [stdout]     |
[INFO] [stdout] 213 | ...                   Box::into_raw(last_frame); //将上一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 213 |                                 let _ = Box::into_raw(last_frame); //将上一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:213:33
[INFO] [stdout]     |
[INFO] [stdout] 213 | ...                   Box::into_raw(last_frame); //将上一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 213 |                                 let _ = Box::into_raw(last_frame); //将上一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:253:33
[INFO] [stdout]     |
[INFO] [stdout] 253 | ...                   Box::into_raw(last_frame); //将上一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 253 |                                 let _ = Box::into_raw(last_frame); //将上一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:253:33
[INFO] [stdout]     |
[INFO] [stdout] 253 | ...                   Box::into_raw(last_frame); //将上一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 253 |                                 let _ = Box::into_raw(last_frame); //将上一个顶帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:307:53
[INFO] [stdout]     |
[INFO] [stdout] 307 | ...                   Box::into_raw(next_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 307 |                                                     let _ = Box::into_raw(next_frame);
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:307:53
[INFO] [stdout]     |
[INFO] [stdout] 307 | ...                   Box::into_raw(next_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 307 |                                                     let _ = Box::into_raw(next_frame);
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:319:53
[INFO] [stdout]     |
[INFO] [stdout] 319 | ...                   Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 319 |                                                     let _ = Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:319:53
[INFO] [stdout]     |
[INFO] [stdout] 319 | ...                   Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 319 |                                                     let _ = Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:323:49
[INFO] [stdout]     |
[INFO] [stdout] 323 | ...                   Box::into_raw(last_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 323 |                                                 let _ = Box::into_raw(last_frame);
[INFO] [stdout]     |                                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:323:49
[INFO] [stdout]     |
[INFO] [stdout] 323 | ...                   Box::into_raw(last_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 323 |                                                 let _ = Box::into_raw(last_frame);
[INFO] [stdout]     |                                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:334:45
[INFO] [stdout]     |
[INFO] [stdout] 334 | ...                   Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 334 |                                             let _ = Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:334:45
[INFO] [stdout]     |
[INFO] [stdout] 334 | ...                   Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 334 |                                             let _ = Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:352:53
[INFO] [stdout]     |
[INFO] [stdout] 352 | ...                   Box::into_raw(next_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 352 |                                                     let _ = Box::into_raw(next_frame);
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:352:53
[INFO] [stdout]     |
[INFO] [stdout] 352 | ...                   Box::into_raw(next_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 352 |                                                     let _ = Box::into_raw(next_frame);
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:363:53
[INFO] [stdout]     |
[INFO] [stdout] 363 | ...                   Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 363 |                                                     let _ = Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:363:53
[INFO] [stdout]     |
[INFO] [stdout] 363 | ...                   Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 363 |                                                     let _ = Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:367:49
[INFO] [stdout]     |
[INFO] [stdout] 367 | ...                   Box::into_raw(last_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 367 |                                                 let _ = Box::into_raw(last_frame);
[INFO] [stdout]     |                                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:367:49
[INFO] [stdout]     |
[INFO] [stdout] 367 | ...                   Box::into_raw(last_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 367 |                                                 let _ = Box::into_raw(last_frame);
[INFO] [stdout]     |                                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:379:45
[INFO] [stdout]     |
[INFO] [stdout] 379 | ...                   Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 379 |                                             let _ = Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:432:53
[INFO] [stdout]     |
[INFO] [stdout] 432 | ...                   Box::into_raw(next_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 432 |                                                     let _ = Box::into_raw(next_frame);
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:379:45
[INFO] [stdout]     |
[INFO] [stdout] 379 | ...                   Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 379 |                                             let _ = Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:444:53
[INFO] [stdout]     |
[INFO] [stdout] 444 | ...                   Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 444 |                                                     let _ = Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:432:53
[INFO] [stdout]     |
[INFO] [stdout] 432 | ...                   Box::into_raw(next_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 432 |                                                     let _ = Box::into_raw(next_frame);
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:448:49
[INFO] [stdout]     |
[INFO] [stdout] 448 | ...                   Box::into_raw(last_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 448 |                                                 let _ = Box::into_raw(last_frame);
[INFO] [stdout]     |                                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:459:45
[INFO] [stdout]     |
[INFO] [stdout] 459 | ...                   Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 459 |                                             let _ = Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:477:53
[INFO] [stdout]     |
[INFO] [stdout] 477 | ...                   Box::into_raw(next_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 477 |                                                     let _ = Box::into_raw(next_frame);
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:488:53
[INFO] [stdout]     |
[INFO] [stdout] 488 | ...                   Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 488 |                                                     let _ = Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:444:53
[INFO] [stdout]     |
[INFO] [stdout] 444 | ...                   Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 444 |                                                     let _ = Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:492:49
[INFO] [stdout]     |
[INFO] [stdout] 492 | ...                   Box::into_raw(last_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 492 |                                                 let _ = Box::into_raw(last_frame);
[INFO] [stdout]     |                                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:504:45
[INFO] [stdout]     |
[INFO] [stdout] 504 | ...                   Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 504 |                                             let _ = Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:448:49
[INFO] [stdout]     |
[INFO] [stdout] 448 | ...                   Box::into_raw(last_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 448 |                                                 let _ = Box::into_raw(last_frame);
[INFO] [stdout]     |                                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:459:45
[INFO] [stdout]     |
[INFO] [stdout] 459 | ...                   Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 459 |                                             let _ = Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:477:53
[INFO] [stdout]     |
[INFO] [stdout] 477 | ...                   Box::into_raw(next_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 477 |                                                     let _ = Box::into_raw(next_frame);
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:488:53
[INFO] [stdout]     |
[INFO] [stdout] 488 | ...                   Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 488 |                                                     let _ = Box::into_raw(next_frame); //将下一个栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:492:49
[INFO] [stdout]     |
[INFO] [stdout] 492 | ...                   Box::into_raw(last_frame);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 492 |                                                 let _ = Box::into_raw(last_frame);
[INFO] [stdout]     |                                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Box::<T, A>::into_raw` that must be used
[INFO] [stdout]    --> src/lib.rs:504:45
[INFO] [stdout]     |
[INFO] [stdout] 504 | ...                   Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the pointer will leak memory
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 504 |                                             let _ = Box::into_raw(frame); //将当前栈帧转化为栈指针，防止被移除
[INFO] [stdout]     |                                             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `lfstack`
[INFO] [stdout]  --> tests/test.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate lfstack;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> tests/test.rs:258:50
[INFO] [stdout]     |
[INFO] [stdout] 258 |                 cache_clone.lock().unwrap().push((*frame));
[INFO] [stdout]     |                                                  ^      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 258 -                 cache_clone.lock().unwrap().push((*frame));
[INFO] [stdout] 258 +                 cache_clone.lock().unwrap().push(*frame);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> tests/test.rs:297:50
[INFO] [stdout]     |
[INFO] [stdout] 297 |                 cache_clone.lock().unwrap().push((*frame));
[INFO] [stdout]     |                                                  ^      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 297 -                 cache_clone.lock().unwrap().push((*frame));
[INFO] [stdout] 297 +                 cache_clone.lock().unwrap().push(*frame);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pi_lfstack` (test "test") due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "97e8f39ddc360972425c4b7b6cdbbe0ed6d024e0e2e6a3c110935d5ec30bd130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97e8f39ddc360972425c4b7b6cdbbe0ed6d024e0e2e6a3c110935d5ec30bd130", kill_on_drop: false }`
[INFO] [stdout] 97e8f39ddc360972425c4b7b6cdbbe0ed6d024e0e2e6a3c110935d5ec30bd130