[INFO] fetching crate biheap 0.5.1...
[INFO] testing biheap-0.5.1 against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] extracting crate biheap 0.5.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate biheap 0.5.1
[INFO] finished tweaking crates.io crate biheap 0.5.1
[INFO] tweaked toml for crates.io crate biheap 0.5.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate biheap 0.5.1 on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38fbbb6b3aab8cb8c00567ce508a4dc1eb1f8e707174c2519cefdbf397c3d2c9
[INFO] running `Command { std: "docker" "start" "-a" "38fbbb6b3aab8cb8c00567ce508a4dc1eb1f8e707174c2519cefdbf397c3d2c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38fbbb6b3aab8cb8c00567ce508a4dc1eb1f8e707174c2519cefdbf397c3d2c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38fbbb6b3aab8cb8c00567ce508a4dc1eb1f8e707174c2519cefdbf397c3d2c9", kill_on_drop: false }`
[INFO] [stdout] 38fbbb6b3aab8cb8c00567ce508a4dc1eb1f8e707174c2519cefdbf397c3d2c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 647e98b32a9f5c96e3d55797487c344020b22408d0053fd3a608c22e2fe301db
[INFO] running `Command { std: "docker" "start" "-a" "647e98b32a9f5c96e3d55797487c344020b22408d0053fd3a608c22e2fe301db", kill_on_drop: false }`
[INFO] [stderr]    Compiling biheap v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/core/bubble.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout] 124 |             let mut this = unsafe { &mut *this.get() };
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/core/bubble.rs:125:17
[INFO] [stdout]     |
[INFO] [stdout] 125 |             let mut cell = unsafe { &mut *cell_ref.get() }; 
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/core/push.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         drop(borrow); 
[INFO] [stdout]    |         ^^^^^------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `&mut bivec::BiVec<std::rc::Rc<std::cell::UnsafeCell<core::Node<T>>>>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 25 -         drop(borrow); 
[INFO] [stdout] 25 +         let _ = borrow; 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/core/bubble.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |                         drop(left_ref); 
[INFO] [stdout]    |                         ^^^^^--------^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              argument has type `&mut core::Node<T>`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 89 -                         drop(left_ref); 
[INFO] [stdout] 89 +                         let _ = left_ref; 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/core/bubble.rs:93:25
[INFO] [stdout]    |
[INFO] [stdout] 93 |                         drop(right_ref); 
[INFO] [stdout]    |                         ^^^^^---------^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              argument has type `&mut core::Node<T>`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 93 -                         drop(right_ref); 
[INFO] [stdout] 93 +                         let _ = right_ref; 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/core/bubble.rs:99:25
[INFO] [stdout]    |
[INFO] [stdout] 99 |                         drop(left_ref); 
[INFO] [stdout]    |                         ^^^^^--------^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              argument has type `&mut core::Node<T>`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 99 -                         drop(left_ref); 
[INFO] [stdout] 99 +                         let _ = left_ref; 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/core/bubble.rs:103:25
[INFO] [stdout]     |
[INFO] [stdout] 103 |                         drop(right_ref); 
[INFO] [stdout]     |                         ^^^^^---------^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut core::Node<T>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 103 -                         drop(right_ref); 
[INFO] [stdout] 103 +                         let _ = right_ref; 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/core/peek.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         drop(bivec); 
[INFO] [stdout]     |         ^^^^^-----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut bivec::BiVec<std::rc::Rc<std::cell::UnsafeCell<core::Node<T>>>>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 117 -         drop(bivec); 
[INFO] [stdout] 117 +         let _ = bivec; 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/core/iter.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn iter(&self) -> RefIter<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn iter(&self) -> RefIter<'_, T> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "647e98b32a9f5c96e3d55797487c344020b22408d0053fd3a608c22e2fe301db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "647e98b32a9f5c96e3d55797487c344020b22408d0053fd3a608c22e2fe301db", kill_on_drop: false }`
[INFO] [stdout] 647e98b32a9f5c96e3d55797487c344020b22408d0053fd3a608c22e2fe301db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 61a34dbfaf92537a9e35a83d34c455df59a4c49f40c446a582796e989ce6d916
[INFO] running `Command { std: "docker" "start" "-a" "61a34dbfaf92537a9e35a83d34c455df59a4c49f40c446a582796e989ce6d916", kill_on_drop: false }`
[INFO] [stderr]    Compiling biheap v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/core/bubble.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout] 124 |             let mut this = unsafe { &mut *this.get() };
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/core/bubble.rs:125:17
[INFO] [stdout]     |
[INFO] [stdout] 125 |             let mut cell = unsafe { &mut *cell_ref.get() }; 
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/core/push.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         drop(borrow); 
[INFO] [stdout]    |         ^^^^^------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `&mut bivec::BiVec<std::rc::Rc<std::cell::UnsafeCell<core::Node<T>>>>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 25 -         drop(borrow); 
[INFO] [stdout] 25 +         let _ = borrow; 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/core/bubble.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |                         drop(left_ref); 
[INFO] [stdout]    |                         ^^^^^--------^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              argument has type `&mut core::Node<T>`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 89 -                         drop(left_ref); 
[INFO] [stdout] 89 +                         let _ = left_ref; 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/core/bubble.rs:93:25
[INFO] [stdout]    |
[INFO] [stdout] 93 |                         drop(right_ref); 
[INFO] [stdout]    |                         ^^^^^---------^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              argument has type `&mut core::Node<T>`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 93 -                         drop(right_ref); 
[INFO] [stdout] 93 +                         let _ = right_ref; 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/core/bubble.rs:99:25
[INFO] [stdout]    |
[INFO] [stdout] 99 |                         drop(left_ref); 
[INFO] [stdout]    |                         ^^^^^--------^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              argument has type `&mut core::Node<T>`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 99 -                         drop(left_ref); 
[INFO] [stdout] 99 +                         let _ = left_ref; 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/core/bubble.rs:103:25
[INFO] [stdout]     |
[INFO] [stdout] 103 |                         drop(right_ref); 
[INFO] [stdout]     |                         ^^^^^---------^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut core::Node<T>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 103 -                         drop(right_ref); 
[INFO] [stdout] 103 +                         let _ = right_ref; 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/core/peek.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         drop(bivec); 
[INFO] [stdout]     |         ^^^^^-----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut bivec::BiVec<std::rc::Rc<std::cell::UnsafeCell<core::Node<T>>>>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 117 -         drop(bivec); 
[INFO] [stdout] 117 +         let _ = bivec; 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/core/iter.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn iter(&self) -> RefIter<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn iter(&self) -> RefIter<'_, T> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/core/bubble.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout] 124 |             let mut this = unsafe { &mut *this.get() };
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/core/bubble.rs:125:17
[INFO] [stdout]     |
[INFO] [stdout] 125 |             let mut cell = unsafe { &mut *cell_ref.get() }; 
[INFO] [stdout]     |                 ----^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/core/push.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         drop(borrow); 
[INFO] [stdout]    |         ^^^^^------^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              argument has type `&mut bivec::BiVec<std::rc::Rc<std::cell::UnsafeCell<core::Node<T>>>>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 25 -         drop(borrow); 
[INFO] [stdout] 25 +         let _ = borrow; 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/core/bubble.rs:89:25
[INFO] [stdout]    |
[INFO] [stdout] 89 |                         drop(left_ref); 
[INFO] [stdout]    |                         ^^^^^--------^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              argument has type `&mut core::Node<T>`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 89 -                         drop(left_ref); 
[INFO] [stdout] 89 +                         let _ = left_ref; 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/core/bubble.rs:93:25
[INFO] [stdout]    |
[INFO] [stdout] 93 |                         drop(right_ref); 
[INFO] [stdout]    |                         ^^^^^---------^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              argument has type `&mut core::Node<T>`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 93 -                         drop(right_ref); 
[INFO] [stdout] 93 +                         let _ = right_ref; 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]   --> src/core/bubble.rs:99:25
[INFO] [stdout]    |
[INFO] [stdout] 99 |                         drop(left_ref); 
[INFO] [stdout]    |                         ^^^^^--------^
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              argument has type `&mut core::Node<T>`
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]    |
[INFO] [stdout] 99 -                         drop(left_ref); 
[INFO] [stdout] 99 +                         let _ = left_ref; 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/core/bubble.rs:103:25
[INFO] [stdout]     |
[INFO] [stdout] 103 |                         drop(right_ref); 
[INFO] [stdout]     |                         ^^^^^---------^
[INFO] [stdout]     |                              |
[INFO] [stdout]     |                              argument has type `&mut core::Node<T>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 103 -                         drop(right_ref); 
[INFO] [stdout] 103 +                         let _ = right_ref; 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/core/peek.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         drop(bivec); 
[INFO] [stdout]     |         ^^^^^-----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `&mut bivec::BiVec<std::rc::Rc<std::cell::UnsafeCell<core::Node<T>>>>`
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 117 -         drop(bivec); 
[INFO] [stdout] 117 +         let _ = bivec; 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/core/iter.rs:36:17
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn iter(&self) -> RefIter<T> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn iter(&self) -> RefIter<'_, T> {
[INFO] [stdout]    |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "61a34dbfaf92537a9e35a83d34c455df59a4c49f40c446a582796e989ce6d916", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61a34dbfaf92537a9e35a83d34c455df59a4c49f40c446a582796e989ce6d916", kill_on_drop: false }`
[INFO] [stdout] 61a34dbfaf92537a9e35a83d34c455df59a4c49f40c446a582796e989ce6d916
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] cdf9864bf3f6ff41d585e793942f9b7cffb973752c872fc76109501eef610e3c
[INFO] running `Command { std: "docker" "start" "-a" "cdf9864bf3f6ff41d585e793942f9b7cffb973752c872fc76109501eef610e3c", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] 
[INFO] [stderr]    --> src/core/bubble.rs:124:17
[INFO] [stdout] running 31 tests
[INFO] [stderr]     |
[INFO] [stderr] 124 |             let mut this = unsafe { &mut *this.get() };
[INFO] [stderr]     |                 ----^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/core/bubble.rs:125:17
[INFO] [stderr]     |
[INFO] [stderr] 125 |             let mut cell = unsafe { &mut *cell_ref.get() }; 
[INFO] [stderr]     |                 ----^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]   --> src/core/push.rs:25:9
[INFO] [stderr]    |
[INFO] [stderr] 25 |         drop(borrow); 
[INFO] [stderr]    |         ^^^^^------^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              argument has type `&mut bivec::BiVec<std::rc::Rc<std::cell::UnsafeCell<core::Node<T>>>>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dropping_references)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 25 -         drop(borrow); 
[INFO] [stderr] 25 +         let _ = borrow; 
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]   --> src/core/bubble.rs:89:25
[INFO] [stderr]    |
[INFO] [stderr] 89 |                         drop(left_ref); 
[INFO] [stderr]    |                         ^^^^^--------^
[INFO] [stderr]    |                              |
[INFO] [stderr]    |                              argument has type `&mut core::Node<T>`
[INFO] [stderr]    |
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 89 -                         drop(left_ref); 
[INFO] [stderr] 89 +                         let _ = left_ref; 
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]   --> src/core/bubble.rs:93:25
[INFO] [stderr]    |
[INFO] [stderr] 93 |                         drop(right_ref); 
[INFO] [stderr]    |                         ^^^^^---------^
[INFO] [stderr]    |                              |
[INFO] [stderr]    |                              argument has type `&mut core::Node<T>`
[INFO] [stderr]    |
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 93 -                         drop(right_ref); 
[INFO] [stderr] 93 +                         let _ = right_ref; 
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]   --> src/core/bubble.rs:99:25
[INFO] [stderr]    |
[INFO] [stderr] 99 |                         drop(left_ref); 
[INFO] [stderr]    |                         ^^^^^--------^
[INFO] [stderr]    |                              |
[INFO] [stderr]    |                              argument has type `&mut core::Node<T>`
[INFO] [stderr]    |
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]    |
[INFO] [stderr] 99 -                         drop(left_ref); 
[INFO] [stderr] 99 +                         let _ = left_ref; 
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/core/bubble.rs:103:25
[INFO] [stderr]     |
[INFO] [stderr] 103 |                         drop(right_ref); 
[INFO] [stderr]     |                         ^^^^^---------^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              argument has type `&mut core::Node<T>`
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     |
[INFO] [stderr] 103 -                         drop(right_ref); 
[INFO] [stderr] 103 +                         let _ = right_ref; 
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stderr]    --> src/core/peek.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         drop(bivec); 
[INFO] [stderr]     |         ^^^^^-----^
[INFO] [stderr]     |              |
[INFO] [stderr]     |              argument has type `&mut bivec::BiVec<std::rc::Rc<std::cell::UnsafeCell<core::Node<T>>>>`
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the expression or result
[INFO] [stderr]     |
[INFO] [stderr] 117 -         drop(bivec); 
[INFO] [stderr] 117 +         let _ = bivec; 
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/core/iter.rs:36:17
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn iter(&self) -> RefIter<T> {
[INFO] [stderr]    |                 ^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn iter(&self) -> RefIter<'_, T> {
[INFO] [stderr]    |                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: `biheap` (lib) generated 9 warnings (run `cargo fix --lib -p biheap` to apply 3 suggestions)
[INFO] [stderr] warning: `biheap` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/biheap/dba54ff561e44e3a/deps/biheap-dba54ff561e44e3a)
[INFO] [stderr] 
[INFO] [stderr] thread 'bivec::extend::reserve_1' (29) panicked at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ptr/mod.rs:527:5:
[INFO] [stderr] unsafe precondition(s) violated: ptr::copy_nonoverlapping requires that both pointer arguments are aligned and non-null and the specified memory ranges do not overlap
[INFO] [stderr] 
[INFO] [stderr] This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x61cc13c4c742 - std[840933623431fd06]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x61cc13c4c742 - std[840933623431fd06]::backtrace_rs::backtrace::trace_unsynchronized::<std[840933623431fd06]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x61cc13c4c742 - std[840933623431fd06]::sys::backtrace::_print_fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]    3:     0x61cc13c4c742 - <<std[840933623431fd06]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[8f93d80df273fe75]::fmt::Display>::fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]    4:     0x61cc13c61aea - <core[8f93d80df273fe75]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]    5:     0x61cc13c61aea - core[8f93d80df273fe75]::fmt::write
[INFO] [stderr]    6:     0x61cc13c522d6 - std[840933623431fd06]::io::default_write_fmt::<std[840933623431fd06]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:639:11
[INFO] [stderr]    7:     0x61cc13c522d6 - <std[840933623431fd06]::sys::stdio::unix::Stderr as std[840933623431fd06]::io::Write>::write_fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]    8:     0x61cc13c2ac0f - <std[840933623431fd06]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]    9:     0x61cc13c2ac0f - std[840933623431fd06]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:292:27
[INFO] [stderr]   10:     0x61cc13c44a41 - std[840933623431fd06]::panicking::default_hook
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:319:9
[INFO] [stderr]   11:     0x61cc13be032e - <alloc[40b2bae28975ac47]::boxed::Box<dyn for<'a, 'b> core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9
[INFO] [stderr]   12:     0x61cc13be032e - test[2f1252070343a163]::test_main_with_exit_callback::<test[2f1252070343a163]::test_main::{closure#0}>::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:145:21
[INFO] [stderr]   13:     0x61cc13c44c32 - <alloc[40b2bae28975ac47]::boxed::Box<dyn for<'a, 'b> core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9
[INFO] [stderr]   14:     0x61cc13c44c32 - std[840933623431fd06]::panicking::panic_with_hook
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:833:13
[INFO] [stderr]   15:     0x61cc13c2acfa - std[840933623431fd06]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:691:13
[INFO] [stderr]   16:     0x61cc13c22699 - std[840933623431fd06]::sys::backtrace::__rust_end_short_backtrace::<std[840933623431fd06]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]   17:     0x61cc13c2bb1d - __rustc[5b4a0c6d8cc4a177]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:689:5
[INFO] [stderr]   18:     0x61cc13c61fdd - core[8f93d80df273fe75]::panicking::panic_nounwind_fmt::runtime
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:122:22
[INFO] [stderr]   19:     0x61cc13c61fdd - core[8f93d80df273fe75]::panicking::panic_nounwind_fmt
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/intrinsics/mod.rs:2431:9
[INFO] [stderr]   20:     0x61cc13bcb0fb - core[8f93d80df273fe75]::ptr::copy_nonoverlapping::precondition_check
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ub_checks.rs:73:21
[INFO] [stderr]   21:     0x61cc13bc34b0 - core[8f93d80df273fe75]::ptr::copy_nonoverlapping::<i32>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ub_checks.rs:78:17
[INFO] [stderr]   22:     0x61cc13bc34b0 - <biheap[7a4350c5d67feff0]::bivec::BiVec<i32>>::set_capacity_or_nothing
[INFO] [stderr]                                at /opt/rustwide/workdir/src/bivec/extend.rs:19:13
[INFO] [stderr]   23:     0x61cc13bc39c9 - <biheap[7a4350c5d67feff0]::bivec::BiVec<i32>>::reserve
[INFO] [stderr]                                at /opt/rustwide/workdir/src/bivec/extend.rs:84:14
[INFO] [stderr]   24:     0x61cc13bcd620 - biheap[7a4350c5d67feff0]::bivec::extend::reserve_1
[INFO] [stderr]                                at /opt/rustwide/workdir/src/bivec/extend.rs:92:11
[INFO] [stderr]   25:     0x61cc13bcccb7 - biheap[7a4350c5d67feff0]::bivec::extend::reserve_1::{closure#0}
[INFO] [stderr]                                at /opt/rustwide/workdir/src/bivec/extend.rs:89:15
[INFO] [stderr]   26:     0x61cc13bd3ea6 - <biheap[7a4350c5d67feff0]::bivec::extend::reserve_1::{closure#0} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   27:     0x61cc13bd46db - <fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   28:     0x61cc13bd46db - test[2f1252070343a163]::__rust_begin_short_backtrace::<core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>, fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:663:18
[INFO] [stderr]   29:     0x61cc13be0f3a - test[2f1252070343a163]::run_test_in_process::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:74
[INFO] [stderr]   30:     0x61cc13be0f3a - <core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stderr]   31:     0x61cc13be0f3a - std[840933623431fd06]::panicking::catch_unwind::do_call::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stderr]   32:     0x61cc13be0f3a - std[840933623431fd06]::panicking::catch_unwind::<core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>, core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stderr]   33:     0x61cc13be0f3a - std[840933623431fd06]::panic::catch_unwind::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<test[2f1252070343a163]::run_test_in_process::{closure#0}>, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stderr]   34:     0x61cc13be0f3a - test[2f1252070343a163]::run_test_in_process
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:27
[INFO] [stderr]   35:     0x61cc13be0f3a - test[2f1252070343a163]::run_test::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:607:43
[INFO] [stderr]   36:     0x61cc13bdb404 - test[2f1252070343a163]::run_test::{closure#1}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:637:41
[INFO] [stderr]   37:     0x61cc13bdb404 - std[840933623431fd06]::sys::backtrace::__rust_begin_short_backtrace::<test[2f1252070343a163]::run_test::{closure#1}, ()>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:166:18
[INFO] [stderr]   38:     0x61cc13be3a32 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stderr]   39:     0x61cc13be3a32 - <core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stderr]   40:     0x61cc13be3a32 - std[840933623431fd06]::panicking::catch_unwind::do_call::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40
[INFO] [stderr]   41:     0x61cc13be3a32 - std[840933623431fd06]::panicking::catch_unwind::<(), core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19
[INFO] [stderr]   42:     0x61cc13be3a32 - std[840933623431fd06]::panic::catch_unwind::<core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe<std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14
[INFO] [stderr]   43:     0x61cc13be3a32 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stderr]   44:     0x61cc13be3a32 - <std[840933623431fd06]::thread::lifecycle::spawn_unchecked<test[2f1252070343a163]::run_test::{closure#1}, ()>::{closure#1} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   45:     0x61cc13c4bfef - <alloc[40b2bae28975ac47]::boxed::Box<dyn core[8f93d80df273fe75]::ops::function::FnOnce<(), Output = ()> + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2206:9
[INFO] [stderr]   46:     0x61cc13c4bfef - <std[840933623431fd06]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]                                at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/thread/unix.rs:119:17
[INFO] [stderr]   47:     0x77e2351bdaa4 - <unknown>
[INFO] [stderr]   48:     0x77e23524aa64 - clone
[INFO] [stderr]   49:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/biheap/dba54ff561e44e3a/deps/biheap-dba54ff561e44e3a` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "cdf9864bf3f6ff41d585e793942f9b7cffb973752c872fc76109501eef610e3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf9864bf3f6ff41d585e793942f9b7cffb973752c872fc76109501eef610e3c", kill_on_drop: false }`
[INFO] [stdout] cdf9864bf3f6ff41d585e793942f9b7cffb973752c872fc76109501eef610e3c
