[INFO] fetching crate puff 0.1.7... [INFO] checking puff-0.1.7 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate puff 0.1.7 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate puff 0.1.7 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 puff 0.1.7 [INFO] finished tweaking crates.io crate puff 0.1.7 [INFO] tweaked toml for crates.io crate puff 0.1.7 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate crates.io crate puff 0.1.7 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3e2514f9d5339296eec4e53b554ca7ffb17e131bb9be6c764482e0f9d94c279f [INFO] running `Command { std: "docker" "start" "-a" "3e2514f9d5339296eec4e53b554ca7ffb17e131bb9be6c764482e0f9d94c279f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3e2514f9d5339296eec4e53b554ca7ffb17e131bb9be6c764482e0f9d94c279f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3e2514f9d5339296eec4e53b554ca7ffb17e131bb9be6c764482e0f9d94c279f", kill_on_drop: false }` [INFO] [stdout] 3e2514f9d5339296eec4e53b554ca7ffb17e131bb9be6c764482e0f9d94c279f [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 -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] c37f47bd0c11b19a641bb2d082c2252131938b230035a2a41c9401e791232bec [INFO] running `Command { std: "docker" "start" "-a" "c37f47bd0c11b19a641bb2d082c2252131938b230035a2a41c9401e791232bec", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling syn v1.0.85 [INFO] [stderr] Compiling serde_derive v1.0.133 [INFO] [stderr] Compiling serde v1.0.133 [INFO] [stderr] Compiling serde_json v1.0.74 [INFO] [stderr] Checking fastrand v1.6.0 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking directories v4.0.1 [INFO] [stderr] Checking tempfile v3.3.0 [INFO] [stderr] Compiling quote v1.0.14 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Checking structopt v0.3.25 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Checking puff v0.1.7 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:4:21 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct AppError(pub(crate) String); [INFO] [stdout] | -------- ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `AppError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/error.rs:4:21 [INFO] [stdout] | [INFO] [stdout] 4 | pub struct AppError(pub(crate) String); [INFO] [stdout] | -------- ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `AppError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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/project_init/existing.rs:136:35 [INFO] [stdout] | [INFO] [stdout] 136 | .map(|f| String::from(f.unwrap().path().to_str().unwrap())) [INFO] [stdout] | - ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #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 `puff` (bin "puff" test) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "c37f47bd0c11b19a641bb2d082c2252131938b230035a2a41c9401e791232bec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c37f47bd0c11b19a641bb2d082c2252131938b230035a2a41c9401e791232bec", kill_on_drop: false }` [INFO] [stdout] c37f47bd0c11b19a641bb2d082c2252131938b230035a2a41c9401e791232bec