[INFO] fetching crate float16 0.1.3...
[INFO] building float16-0.1.3 against try#9b5e8b16bd1c4acf4cf8e6880368314cf021a987+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] extracting crate float16 0.1.3 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate float16 0.1.3 on toolchain 9b5e8b16bd1c4acf4cf8e6880368314cf021a987
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate float16 0.1.3
[INFO] finished tweaking crates.io crate float16 0.1.3
[INFO] tweaked toml for crates.io crate float16 0.1.3 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "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 rustc_version v0.2.3 (available: v0.4.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f1af3b4554990261f3decf44dc5fef6af6993e405a3207f520f8576a5dd8094
[INFO] running `Command { std: "docker" "start" "-a" "6f1af3b4554990261f3decf44dc5fef6af6993e405a3207f520f8576a5dd8094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f1af3b4554990261f3decf44dc5fef6af6993e405a3207f520f8576a5dd8094", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f1af3b4554990261f3decf44dc5fef6af6993e405a3207f520f8576a5dd8094", kill_on_drop: false }`
[INFO] [stdout] 6f1af3b4554990261f3decf44dc5fef6af6993e405a3207f520f8576a5dd8094
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80da29a77b127be091018f8cf4a56d3129a683287cd7be20699a37c39b46fdc1
[INFO] running `Command { std: "docker" "start" "-a" "80da29a77b127be091018f8cf4a56d3129a683287cd7be20699a37c39b46fdc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling float16 v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: a temporary value will be dropped here before the execution exits the block in Edition 2024, which will raise borrow checking error
[INFO] [stdout]    --> src/binary16/arch.rs:422:46
[INFO] [stdout]     |
[INFO] [stdout] 422 |         d.copy_from_slice(unsafe { &fn8(chunk) });
[INFO] [stdout]     |                                    ----------^
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    consider using a `let` binding to create a longer lived value; or replacing the `{ .. }` block with curly brackets `( .. )`; or folding the rest of the expression into the surrounding `unsafe { .. }`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/temporary-tail-expr-scope.html>
[INFO] [stdout]     = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: a temporary value will be dropped here before the execution exits the block in Edition 2024, which will raise borrow checking error
[INFO] [stdout]    --> src/binary16/arch.rs:457:44
[INFO] [stdout]     |
[INFO] [stdout] 457 |         d.copy_from_slice(unsafe { &f(chunk) });
[INFO] [stdout]     |                                    --------^
[INFO] [stdout]     |                                    |
[INFO] [stdout]     |                                    consider using a `let` binding to create a longer lived value; or replacing the `{ .. }` block with curly brackets `( .. )`; or folding the rest of the expression into the surrounding `unsafe { .. }`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/temporary-tail-expr-scope.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `float16` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "80da29a77b127be091018f8cf4a56d3129a683287cd7be20699a37c39b46fdc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80da29a77b127be091018f8cf4a56d3129a683287cd7be20699a37c39b46fdc1", kill_on_drop: false }`
[INFO] [stdout] 80da29a77b127be091018f8cf4a56d3129a683287cd7be20699a37c39b46fdc1