[INFO] fetching crate atomicbox_nostd 0.3.1...
[INFO] checking atomicbox_nostd-0.3.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate atomicbox_nostd 0.3.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate atomicbox_nostd 0.3.1 on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate atomicbox_nostd 0.3.1
[INFO] finished tweaking crates.io crate atomicbox_nostd 0.3.1
[INFO] tweaked toml for crates.io crate atomicbox_nostd 0.3.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09b0ca1a547d84a42edad3e5d1fd7997825acfc5dcfc1802476f93b495002926
[INFO] running `Command { std: "docker" "start" "-a" "09b0ca1a547d84a42edad3e5d1fd7997825acfc5dcfc1802476f93b495002926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09b0ca1a547d84a42edad3e5d1fd7997825acfc5dcfc1802476f93b495002926", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09b0ca1a547d84a42edad3e5d1fd7997825acfc5dcfc1802476f93b495002926", kill_on_drop: false }`
[INFO] [stdout] 09b0ca1a547d84a42edad3e5d1fd7997825acfc5dcfc1802476f93b495002926
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c4bac0b135d976887736e013f27d4004bffc4d89db4795cfffe728fcb772bf0
[INFO] running `Command { std: "docker" "start" "-a" "2c4bac0b135d976887736e013f27d4004bffc4d89db4795cfffe728fcb772bf0", kill_on_drop: false }`
[INFO] [stderr]     Checking atomicbox_nostd v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/atomic_box.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             Box::from_raw(ptr);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 139 |             let _ = Box::from_raw(ptr);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::boxed::Box::<T>::from_raw` that must be used
[INFO] [stdout]    --> src/atomic_box.rs:139:13
[INFO] [stdout]     |
[INFO] [stdout] 139 |             Box::from_raw(ptr);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 139 |             let _ = Box::from_raw(ptr);
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/atomic_box.rs:244:23
[INFO] [stdout]     |
[INFO] [stdout] 242 |                   let my_gate = gate.clone();
[INFO] [stdout]     |                       ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 243 |                   let my_box = abox.clone();
[INFO] [stdout]     |                       ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 244 |                   spawn(move || {
[INFO] [stdout]     |  _______________________^
[INFO] [stdout] 245 | |                     my_gate.wait();
[INFO] [stdout] 246 | |                     let mut my_vec = Box::new(vec![]);
[INFO] [stdout] 247 | |                     for _ in 0..100 {
[INFO] [stdout] ...   |
[INFO] [stdout] 251 | |                     my_vec
[INFO] [stdout] 252 | |                 })
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/123739>
[INFO] [stdout]     = note: requested on the command line with `-D tail-expr-drop-order`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `atomicbox_nostd` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "2c4bac0b135d976887736e013f27d4004bffc4d89db4795cfffe728fcb772bf0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c4bac0b135d976887736e013f27d4004bffc4d89db4795cfffe728fcb772bf0", kill_on_drop: false }`
[INFO] [stdout] 2c4bac0b135d976887736e013f27d4004bffc4d89db4795cfffe728fcb772bf0