[INFO] fetching crate suspend_fn_proc_macro 0.1.0... [INFO] checking suspend_fn_proc_macro-0.1.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate suspend_fn_proc_macro 0.1.0 into /workspace/builds/worker-1-tc2/source [INFO] validating manifest of crates.io crate suspend_fn_proc_macro 0.1.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate suspend_fn_proc_macro 0.1.0 [INFO] finished tweaking crates.io crate suspend_fn_proc_macro 0.1.0 [INFO] tweaked toml for crates.io crate suspend_fn_proc_macro 0.1.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 5 packages to latest compatible versions [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.79) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 22a7eeb0d96725adaa002a16a6246c292b0847c6a75c942872d4c0da5a8712a9 [INFO] running `Command { std: "docker" "start" "-a" "22a7eeb0d96725adaa002a16a6246c292b0847c6a75c942872d4c0da5a8712a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "22a7eeb0d96725adaa002a16a6246c292b0847c6a75c942872d4c0da5a8712a9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22a7eeb0d96725adaa002a16a6246c292b0847c6a75c942872d4c0da5a8712a9", kill_on_drop: false }` [INFO] [stdout] 22a7eeb0d96725adaa002a16a6246c292b0847c6a75c942872d4c0da5a8712a9 [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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5006d1df13f3e1b8e40f9eecacca7355f46045fdc7f8a85e637faa8d7d14fe07 [INFO] running `Command { std: "docker" "start" "-a" "5006d1df13f3e1b8e40f9eecacca7355f46045fdc7f8a85e637faa8d7d14fe07", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking take_mut v0.2.2 [INFO] [stderr] Checking quote v1.0.37 [INFO] [stderr] Checking suspend_fn_proc_macro v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: for loop over a `&mut Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/expr.rs:231:26 [INFO] [stdout] | [INFO] [stdout] 231 | for (_, expr) in &mut self.guard { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 231 | while let Some((_, expr)) = &mut self.guard { [INFO] [stdout] | ~~~~~~~~~~~~~~~ ~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 231 | if let Some((_, expr)) = &mut self.guard { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over a `&mut Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/stmt.rs:17:26 [INFO] [stdout] | [INFO] [stdout] 17 | for (_, expr) in &mut self.init { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 17 | while let Some((_, expr)) = &mut self.init { [INFO] [stdout] | ~~~~~~~~~~~~~~~ ~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 17 | if let Some((_, expr)) = &mut self.init { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over a `&mut Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/expr.rs:231:26 [INFO] [stdout] | [INFO] [stdout] 231 | for (_, expr) in &mut self.guard { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 231 | while let Some((_, expr)) = &mut self.guard { [INFO] [stdout] | ~~~~~~~~~~~~~~~ ~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 231 | if let Some((_, expr)) = &mut self.guard { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over a `&mut Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/stmt.rs:17:26 [INFO] [stdout] | [INFO] [stdout] 17 | for (_, expr) in &mut self.init { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 17 | while let Some((_, expr)) = &mut self.init { [INFO] [stdout] | ~~~~~~~~~~~~~~~ ~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 17 | if let Some((_, expr)) = &mut self.init { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.51s [INFO] running `Command { std: "docker" "inspect" "5006d1df13f3e1b8e40f9eecacca7355f46045fdc7f8a85e637faa8d7d14fe07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5006d1df13f3e1b8e40f9eecacca7355f46045fdc7f8a85e637faa8d7d14fe07", kill_on_drop: false }` [INFO] [stdout] 5006d1df13f3e1b8e40f9eecacca7355f46045fdc7f8a85e637faa8d7d14fe07