[INFO] fetching crate flashcards 0.1.1... [INFO] checking flashcards-0.1.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate flashcards 0.1.1 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate flashcards 0.1.1 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 flashcards 0.1.1 [INFO] finished tweaking crates.io crate flashcards 0.1.1 [INFO] tweaked toml for crates.io crate flashcards 0.1.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate crates.io crate flashcards 0.1.1 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] ce4da4dfc7c5f0609a17f7e862f04c3444201c3376d13d0089fc8287a73885de [INFO] running `Command { std: "docker" "start" "-a" "ce4da4dfc7c5f0609a17f7e862f04c3444201c3376d13d0089fc8287a73885de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ce4da4dfc7c5f0609a17f7e862f04c3444201c3376d13d0089fc8287a73885de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce4da4dfc7c5f0609a17f7e862f04c3444201c3376d13d0089fc8287a73885de", kill_on_drop: false }` [INFO] [stdout] ce4da4dfc7c5f0609a17f7e862f04c3444201c3376d13d0089fc8287a73885de [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] 81f4e30fc10072701e9883a8c3fa68dea45b45577919ff8a031147ab3bea8608 [INFO] running `Command { std: "docker" "start" "-a" "81f4e30fc10072701e9883a8c3fa68dea45b45577919ff8a031147ab3bea8608", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.119 [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Checking fastrand v1.7.0 [INFO] [stderr] Checking fs_extra v1.2.0 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling quote v1.0.15 [INFO] [stderr] Checking xattr v0.2.2 [INFO] [stderr] Checking filetime v0.2.15 [INFO] [stderr] Checking getrandom v0.2.5 [INFO] [stderr] Checking flate2 v1.0.22 [INFO] [stderr] Checking tempfile v3.3.0 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Checking tar v0.4.38 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking flashcards v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: methods `close_fds`, `id`, and `name` are never used [INFO] [stdout] --> src/lib.rs:124:5 [INFO] [stdout] | [INFO] [stdout] 22 | impl Deck { [INFO] [stdout] | --------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 124 | fn close_fds(&self) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 130 | fn id(&self) -> &str { [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 134 | fn name(&self) -> &str { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `open`, `close`, and `is_opened` are never used [INFO] [stdout] --> src/lib.rs:163:5 [INFO] [stdout] | [INFO] [stdout] 159 | impl FileDesc { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 163 | fn new(path: impl AsRef, rc: u32) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 180 | fn open(&mut self, storage_path: impl AsRef) -> Result<()> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 195 | fn close(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 223 | fn is_opened(&self) -> bool { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `close_fds`, `id`, and `name` are never used [INFO] [stdout] --> src/lib.rs:124:5 [INFO] [stdout] | [INFO] [stdout] 22 | impl Deck { [INFO] [stdout] | --------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 124 | fn close_fds(&self) { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 130 | fn id(&self) -> &str { [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 134 | fn name(&self) -> &str { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `open`, `close`, and `is_opened` are never used [INFO] [stdout] --> src/lib.rs:163:5 [INFO] [stdout] | [INFO] [stdout] 159 | impl FileDesc { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] ... [INFO] [stdout] 163 | fn new(path: impl AsRef, rc: u32) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 180 | fn open(&mut self, storage_path: impl AsRef) -> Result<()> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 195 | fn close(&mut self) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 223 | fn is_opened(&self) -> bool { [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/lib.rs:289:12 [INFO] [stdout] | [INFO] [stdout] 279 | error: E, [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 289 | error: error.into(), [INFO] [stdout] | ^^^^^^^^^^^^ [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:289:12 [INFO] [stdout] | [INFO] [stdout] 279 | error: E, [INFO] [stdout] | -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 289 | error: error.into(), [INFO] [stdout] | ^^^^^^^^^^^^ [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; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `flashcards` (lib) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `flashcards` (lib test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "81f4e30fc10072701e9883a8c3fa68dea45b45577919ff8a031147ab3bea8608", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "81f4e30fc10072701e9883a8c3fa68dea45b45577919ff8a031147ab3bea8608", kill_on_drop: false }` [INFO] [stdout] 81f4e30fc10072701e9883a8c3fa68dea45b45577919ff8a031147ab3bea8608