[INFO] fetching crate teacup 0.1.0... [INFO] checking teacup-0.1.0 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate teacup 0.1.0 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate teacup 0.1.0 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 teacup 0.1.0 [INFO] finished tweaking crates.io crate teacup 0.1.0 [INFO] tweaked toml for crates.io crate teacup 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate teacup 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 56761b99c0fce10cba7d13cdb343e5098b63365629b44f04882a6f895514d298 [INFO] running `Command { std: "docker" "start" "-a" "56761b99c0fce10cba7d13cdb343e5098b63365629b44f04882a6f895514d298", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "56761b99c0fce10cba7d13cdb343e5098b63365629b44f04882a6f895514d298", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "56761b99c0fce10cba7d13cdb343e5098b63365629b44f04882a6f895514d298", kill_on_drop: false }` [INFO] [stdout] 56761b99c0fce10cba7d13cdb343e5098b63365629b44f04882a6f895514d298 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cef01c4766be0c3fb1f0a265236816d1ce0a5da7c5c075284c9658a2f4f0862d [INFO] running `Command { std: "docker" "start" "-a" "cef01c4766be0c3fb1f0a265236816d1ce0a5da7c5c075284c9658a2f4f0862d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.73 [INFO] [stderr] Compiling libc v0.2.97 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Compiling structopt-derive v0.4.14 [INFO] [stderr] Checking structopt v0.3.21 [INFO] [stderr] Checking teacup v0.1.0 (/opt/rustwide/workdir) [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/conn.rs:6:19 [INFO] [stdout] | [INFO] [stdout] 5 | fn write_from_stdin(mut w: TcpStream) -> JoinHandle<()> { [INFO] [stdout] | ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 6 | thread::spawn(move || loop { [INFO] [stdout] | ___________________^ [INFO] [stdout] 7 | | let mut input = String::new(); [INFO] [stdout] 8 | | std::io::stdin().read_line(&mut input).unwrap(); [INFO] [stdout] 9 | | w.write_all(input.as_bytes()).unwrap(); [INFO] [stdout] 10 | | w.flush().unwrap(); [INFO] [stdout] 11 | | }) [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/conn.rs:15:19 [INFO] [stdout] | [INFO] [stdout] 14 | fn read_to_stdout(mut r: TcpStream) -> JoinHandle<()> { [INFO] [stdout] | ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 15 | thread::spawn(move || loop { [INFO] [stdout] | ___________________^ [INFO] [stdout] 16 | | let mut buf = [0u8; 128]; [INFO] [stdout] 17 | | match r.read(&mut buf) { [INFO] [stdout] 18 | | Ok(0) => break, [INFO] [stdout] ... | [INFO] [stdout] 31 | | } [INFO] [stdout] 32 | | }) [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `teacup` (bin "teacup") due to 3 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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/conn.rs:6:19 [INFO] [stdout] | [INFO] [stdout] 5 | fn write_from_stdin(mut w: TcpStream) -> JoinHandle<()> { [INFO] [stdout] | ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 6 | thread::spawn(move || loop { [INFO] [stdout] | ___________________^ [INFO] [stdout] 7 | | let mut input = String::new(); [INFO] [stdout] 8 | | std::io::stdin().read_line(&mut input).unwrap(); [INFO] [stdout] 9 | | w.write_all(input.as_bytes()).unwrap(); [INFO] [stdout] 10 | | w.flush().unwrap(); [INFO] [stdout] 11 | | }) [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/conn.rs:15:19 [INFO] [stdout] | [INFO] [stdout] 14 | fn read_to_stdout(mut r: TcpStream) -> JoinHandle<()> { [INFO] [stdout] | ---------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 15 | thread::spawn(move || loop { [INFO] [stdout] | ___________________^ [INFO] [stdout] 16 | | let mut buf = [0u8; 128]; [INFO] [stdout] 17 | | match r.read(&mut buf) { [INFO] [stdout] 18 | | Ok(0) => break, [INFO] [stdout] ... | [INFO] [stdout] 31 | | } [INFO] [stdout] 32 | | }) [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `teacup` (bin "teacup" test) due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "cef01c4766be0c3fb1f0a265236816d1ce0a5da7c5c075284c9658a2f4f0862d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cef01c4766be0c3fb1f0a265236816d1ce0a5da7c5c075284c9658a2f4f0862d", kill_on_drop: false }` [INFO] [stdout] cef01c4766be0c3fb1f0a265236816d1ce0a5da7c5c075284c9658a2f4f0862d