[INFO] fetching crate mut-binary-heap 0.1.0...
[INFO] testing mut-binary-heap-0.1.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate mut-binary-heap 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate mut-binary-heap 0.1.0
[INFO] finished tweaking crates.io crate mut-binary-heap 0.1.0
[INFO] tweaked toml for crates.io crate mut-binary-heap 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mut-binary-heap 0.1.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mut-binary-heap 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.155
[INFO] [stderr]   Downloaded serde v1.0.155
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afa8b4372f5286dca198e286686f0069f37d1f7c690296b3ae772b079e6d90db
[INFO] running `Command { std: "docker" "start" "-a" "afa8b4372f5286dca198e286686f0069f37d1f7c690296b3ae772b079e6d90db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afa8b4372f5286dca198e286686f0069f37d1f7c690296b3ae772b079e6d90db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afa8b4372f5286dca198e286686f0069f37d1f7c690296b3ae772b079e6d90db", kill_on_drop: false }`
[INFO] [stdout] afa8b4372f5286dca198e286686f0069f37d1f7c690296b3ae772b079e6d90db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 5bebbfe5e955ae28f91aa0d6ea81fad2289e1def1511e09f7c34317ba3565965
[INFO] running `Command { std: "docker" "start" "-a" "5bebbfe5e955ae28f91aa0d6ea81fad2289e1def1511e09f7c34317ba3565965", kill_on_drop: false }`
[INFO] [stderr]    Compiling compare v0.1.0
[INFO] [stderr]    Compiling mut-binary-heap v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: casting `&T` to `&mut T` is undefined behavior, even if the reference is unused, consider instead using an `UnsafeCell`
[INFO] [stdout]     --> src/binary_heap.rs:2211:34
[INFO] [stdout]      |
[INFO] [stdout] 2204 |             let mut_ptr: *mut T = ptr as *mut T;
[INFO] [stdout]      |                                   ------------- casting happened here
[INFO] [stdout] ...
[INFO] [stdout] 2211 |             let value = unsafe { &mut *mut_ptr };
[INFO] [stdout]      |                                  ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: for more information, visit <https://doc.rust-lang.org/book/ch15-05-interior-mutability.html>
[INFO] [stdout]      = note: `#[deny(invalid_reference_casting)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mut-binary-heap` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "5bebbfe5e955ae28f91aa0d6ea81fad2289e1def1511e09f7c34317ba3565965", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bebbfe5e955ae28f91aa0d6ea81fad2289e1def1511e09f7c34317ba3565965", kill_on_drop: false }`
[INFO] [stdout] 5bebbfe5e955ae28f91aa0d6ea81fad2289e1def1511e09f7c34317ba3565965