[INFO] fetching crate fnq 0.3.1... [INFO] checking fnq-0.3.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate fnq 0.3.1 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate fnq 0.3.1 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 fnq 0.3.1 [INFO] finished tweaking crates.io crate fnq 0.3.1 [INFO] tweaked toml for crates.io crate fnq 0.3.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate crates.io crate fnq 0.3.1 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] [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-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c5dca4e1b111771e3ffa18de0bcaf73c6f88fd208cc4ce5fa46c66b4e6deabfe [INFO] running `Command { std: "docker" "start" "-a" "c5dca4e1b111771e3ffa18de0bcaf73c6f88fd208cc4ce5fa46c66b4e6deabfe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c5dca4e1b111771e3ffa18de0bcaf73c6f88fd208cc4ce5fa46c66b4e6deabfe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c5dca4e1b111771e3ffa18de0bcaf73c6f88fd208cc4ce5fa46c66b4e6deabfe", kill_on_drop: false }` [INFO] [stdout] c5dca4e1b111771e3ffa18de0bcaf73c6f88fd208cc4ce5fa46c66b4e6deabfe [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] aeb9701bd0c26589480afee821c29919d0adca8173c5e0959b949f843cbd10c6 [INFO] running `Command { std: "docker" "start" "-a" "aeb9701bd0c26589480afee821c29919d0adca8173c5e0959b949f843cbd10c6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking lazycell v1.3.0 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking filetime v0.2.14 [INFO] [stderr] Checking nix v0.20.0 [INFO] [stderr] Checking inotify v0.7.1 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Checking notify v4.0.16 [INFO] [stderr] Checking fnq v0.3.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/ops/queue.rs:201:24 [INFO] [stdout] | [INFO] [stdout] 201 | if let Err(err) = unistd::execvp(&cmd_c, &args_c) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: irrefutable `if let` pattern [INFO] [stdout] --> src/ops/queue.rs:201:24 [INFO] [stdout] | [INFO] [stdout] 201 | if let Err(err) = unistd::execvp(&cmd_c, &args_c) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this pattern will always match, so the `if let` is useless [INFO] [stdout] = help: consider replacing the `if let` with a `let` [INFO] [stdout] = note: `#[warn(irrefutable_let_patterns)]` 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/ops/queue.rs:162:55 [INFO] [stdout] | [INFO] [stdout] 162 | .map(|arg| arg.to_str().ok_or(OpsError::StringConv)) [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; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fnq` (bin "fnq") due to 2 previous errors; 1 warning emitted [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/ops/queue.rs:162:55 [INFO] [stdout] | [INFO] [stdout] 162 | .map(|arg| arg.to_str().ok_or(OpsError::StringConv)) [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; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fnq` (bin "fnq" test) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "aeb9701bd0c26589480afee821c29919d0adca8173c5e0959b949f843cbd10c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aeb9701bd0c26589480afee821c29919d0adca8173c5e0959b949f843cbd10c6", kill_on_drop: false }` [INFO] [stdout] aeb9701bd0c26589480afee821c29919d0adca8173c5e0959b949f843cbd10c6