[INFO] fetching crate tokio-icmp-echo 0.4.1... [INFO] checking tokio-icmp-echo-0.4.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate tokio-icmp-echo 0.4.1 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate tokio-icmp-echo 0.4.1 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate tokio-icmp-echo 0.4.1 [INFO] finished tweaking crates.io crate tokio-icmp-echo 0.4.1 [INFO] tweaked toml for crates.io crate tokio-icmp-echo 0.4.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate crates.io crate tokio-icmp-echo 0.4.1 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 346d070cfb35d432853efcd96fe3266df2b9a9139ebb7389fce2ad1f73019861 [INFO] running `Command { std: "docker" "start" "-a" "346d070cfb35d432853efcd96fe3266df2b9a9139ebb7389fce2ad1f73019861", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "346d070cfb35d432853efcd96fe3266df2b9a9139ebb7389fce2ad1f73019861", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "346d070cfb35d432853efcd96fe3266df2b9a9139ebb7389fce2ad1f73019861", kill_on_drop: false }` [INFO] [stdout] 346d070cfb35d432853efcd96fe3266df2b9a9139ebb7389fce2ad1f73019861 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 76f5011622c1eafb36c5599c46c93ad32fa6fdcfcd571056761686c0997a5caf [INFO] running `Command { std: "docker" "start" "-a" "76f5011622c1eafb36c5599c46c93ad32fa6fdcfcd571056761686c0997a5caf", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.120 [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.89 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Compiling futures-task v0.3.21 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling futures-channel v0.3.21 [INFO] [stderr] Compiling futures-util v0.3.21 [INFO] [stderr] Checking pin-project-lite v0.2.8 [INFO] [stderr] Checking futures-sink v0.3.21 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking slab v0.4.5 [INFO] [stderr] Compiling parking_lot_core v0.9.1 [INFO] [stderr] Checking futures-io v0.3.21 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Checking lock_api v0.4.6 [INFO] [stderr] Checking getrandom v0.2.5 [INFO] [stderr] Checking mio v0.8.1 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking socket2 v0.4.4 [INFO] [stderr] Compiling quote v1.0.15 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking parking_lot v0.12.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Compiling futures-macro v0.3.21 [INFO] [stderr] Compiling thiserror-impl v1.0.30 [INFO] [stderr] Compiling tokio-macros v1.7.0 [INFO] [stderr] Checking tokio v1.17.0 [INFO] [stderr] Checking thiserror v1.0.30 [INFO] [stderr] Checking futures-executor v0.3.21 [INFO] [stderr] Checking futures v0.3.21 [INFO] [stderr] Checking tokio-icmp-echo v0.4.1 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `std::task::Poll, errors::Error>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/ping.rs:226:15 [INFO] [stdout] | [INFO] [stdout] 221 | let mut future = self [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 226 | match future.as_mut().poll(cx) { [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] warning: fields `ident` and `seq_cnt` are never read [INFO] [stdout] --> src/packet/icmp.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 62 | pub struct EchoReply<'a> { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] 63 | pub ident: u16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 64 | pub seq_cnt: u16, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `std::task::Poll, errors::Error>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/ping.rs:226:15 [INFO] [stdout] | [INFO] [stdout] 221 | let mut future = self [INFO] [stdout] | ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 226 | match future.as_mut().poll(cx) { [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] [stderr] error: could not compile `tokio-icmp-echo` (lib test) due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: fields `ident` and `seq_cnt` are never read [INFO] [stdout] --> src/packet/icmp.rs:63:9 [INFO] [stdout] | [INFO] [stdout] 62 | pub struct EchoReply<'a> { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] 63 | pub ident: u16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 64 | pub seq_cnt: u16, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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 `tokio-icmp-echo` (lib) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "76f5011622c1eafb36c5599c46c93ad32fa6fdcfcd571056761686c0997a5caf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76f5011622c1eafb36c5599c46c93ad32fa6fdcfcd571056761686c0997a5caf", kill_on_drop: false }` [INFO] [stdout] 76f5011622c1eafb36c5599c46c93ad32fa6fdcfcd571056761686c0997a5caf