[INFO] fetching crate tracing-allocations 0.1.0... [INFO] checking tracing-allocations-0.1.0 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] extracting crate tracing-allocations 0.1.0 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate tracing-allocations 0.1.0 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate tracing-allocations 0.1.0 [INFO] finished tweaking crates.io crate tracing-allocations 0.1.0 [INFO] tweaked toml for crates.io crate tracing-allocations 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate crates.io crate tracing-allocations 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded parking_lot_core v0.9.1 [INFO] [stderr] Downloaded tracing v0.1.31 [INFO] [stderr] Downloaded tracing-attributes v0.1.19 [INFO] [stderr] Downloaded tracing-subscriber v0.3.9 [INFO] [stderr] Downloaded windows-sys v0.32.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7585b1f1b81799a9fe9cbd6bde9cd7158647c2556c3759bd290db29ec1e3ea03 [INFO] running `Command { std: "docker" "start" "-a" "7585b1f1b81799a9fe9cbd6bde9cd7158647c2556c3759bd290db29ec1e3ea03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7585b1f1b81799a9fe9cbd6bde9cd7158647c2556c3759bd290db29ec1e3ea03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7585b1f1b81799a9fe9cbd6bde9cd7158647c2556c3759bd290db29ec1e3ea03", kill_on_drop: false }` [INFO] [stdout] 7585b1f1b81799a9fe9cbd6bde9cd7158647c2556c3759bd290db29ec1e3ea03 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 39377532f32d802fb37b38da8ea901e9c8c71dc843eac1e37236deadbf06636f [INFO] running `Command { std: "docker" "start" "-a" "39377532f32d802fb37b38da8ea901e9c8c71dc843eac1e37236deadbf06636f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.119 [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Checking tracing-core v0.1.22 [INFO] [stderr] Compiling parking_lot_core v0.9.1 [INFO] [stderr] Checking once_cell v1.10.0 [INFO] [stderr] Compiling quote v1.0.15 [INFO] [stderr] Checking pin-project-lite v0.2.8 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking thread_local v1.1.4 [INFO] [stderr] Checking lock_api v0.4.6 [INFO] [stderr] Checking sharded-slab v0.1.4 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Checking tracing-subscriber v0.3.9 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking socket2 v0.4.4 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking mio v0.8.0 [INFO] [stderr] Checking parking_lot v0.12.0 [INFO] [stderr] Compiling tracing-attributes v0.1.19 [INFO] [stderr] Compiling tokio-macros v1.7.0 [INFO] [stderr] Checking tokio v1.17.0 [INFO] [stderr] Checking tracing v0.1.31 [INFO] [stderr] Checking tracing-allocations v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/lib.rs:84:17 [INFO] [stdout] | [INFO] [stdout] 84 | drop(guard); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&RefCell` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 84 - drop(guard); [INFO] [stdout] 84 + let _ = guard; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Instrument` and `trace_span` [INFO] [stdout] --> examples/simple.rs:1:15 [INFO] [stdout] | [INFO] [stdout] 1 | use tracing::{trace_span, Instrument}; [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/lib.rs:84:17 [INFO] [stdout] | [INFO] [stdout] 84 | drop(guard); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&RefCell` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 84 - drop(guard); [INFO] [stdout] 84 + let _ = guard; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.21s [INFO] running `Command { std: "docker" "inspect" "39377532f32d802fb37b38da8ea901e9c8c71dc843eac1e37236deadbf06636f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "39377532f32d802fb37b38da8ea901e9c8c71dc843eac1e37236deadbf06636f", kill_on_drop: false }` [INFO] [stdout] 39377532f32d802fb37b38da8ea901e9c8c71dc843eac1e37236deadbf06636f [INFO] checking tracing-allocations-0.1.0 against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] extracting crate tracing-allocations 0.1.0 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate tracing-allocations 0.1.0 on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate tracing-allocations 0.1.0 [INFO] finished tweaking crates.io crate tracing-allocations 0.1.0 [INFO] tweaked toml for crates.io crate tracing-allocations 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate crates.io crate tracing-allocations 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 630d1f77b34183ba7ad63bc0412d121b503600e03b443855ef33fa26df1c06fb [INFO] running `Command { std: "docker" "start" "-a" "630d1f77b34183ba7ad63bc0412d121b503600e03b443855ef33fa26df1c06fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "630d1f77b34183ba7ad63bc0412d121b503600e03b443855ef33fa26df1c06fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "630d1f77b34183ba7ad63bc0412d121b503600e03b443855ef33fa26df1c06fb", kill_on_drop: false }` [INFO] [stdout] 630d1f77b34183ba7ad63bc0412d121b503600e03b443855ef33fa26df1c06fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d4947935715849bb198ef4e5d7116f24bacdba60fb9a0a7b63176b0602780a3d [INFO] running `Command { std: "docker" "start" "-a" "d4947935715849bb198ef4e5d7116f24bacdba60fb9a0a7b63176b0602780a3d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.119 [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling parking_lot_core v0.9.1 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Checking tracing-core v0.1.22 [INFO] [stderr] Checking once_cell v1.10.0 [INFO] [stderr] Compiling quote v1.0.15 [INFO] [stderr] Checking pin-project-lite v0.2.8 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking thread_local v1.1.4 [INFO] [stderr] Checking sharded-slab v0.1.4 [INFO] [stderr] Checking lock_api v0.4.6 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking tracing-subscriber v0.3.9 [INFO] [stderr] Checking socket2 v0.4.4 [INFO] [stderr] Checking mio v0.8.0 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking parking_lot v0.12.0 [INFO] [stderr] Compiling tracing-attributes v0.1.19 [INFO] [stderr] Compiling tokio-macros v1.7.0 [INFO] [stderr] Checking tokio v1.17.0 [INFO] [stderr] Checking tracing v0.1.31 [INFO] [stderr] Checking tracing-allocations v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing [INFO] [stdout] --> src/lib.rs:84:17 [INFO] [stdout] | [INFO] [stdout] 84 | drop(guard); [INFO] [stdout] | ^^^^^-----^ [INFO] [stdout] | | [INFO] [stdout] | argument has type `&RefCell` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dropping_references)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the expression or result [INFO] [stdout] | [INFO] [stdout] 84 - drop(guard); [INFO] [stdout] 84 + let _ = guard; [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:92:26 [INFO] [stdout] | [INFO] [stdout] 91 | pub fn trace_allocations R, R>(f: F) -> R { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 92 | TRACE_ALLOCATOR.with(|guard| { [INFO] [stdout] | __________________________^ [INFO] [stdout] 93 | | let mut previous_state = false; [INFO] [stdout] 94 | | if let Ok(mut trace_allocations) = guard.try_borrow_mut() { [INFO] [stdout] 95 | | previous_state = mem::replace(&mut trace_allocations, true); [INFO] [stdout] ... | [INFO] [stdout] 101 | | res [INFO] [stdout] 102 | | }) [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:107:26 [INFO] [stdout] | [INFO] [stdout] 106 | pub fn ignore_allocations R, R>(f: F) -> R { [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 107 | TRACE_ALLOCATOR.with(|guard| { [INFO] [stdout] | __________________________^ [INFO] [stdout] 108 | | let mut previous_state = true; [INFO] [stdout] 109 | | if let Ok(mut trace_allocations) = guard.try_borrow_mut() { [INFO] [stdout] 110 | | previous_state = mem::replace(&mut trace_allocations, false); [INFO] [stdout] ... | [INFO] [stdout] 116 | | res [INFO] [stdout] 117 | | }) [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; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tracing-allocations` (lib) due to 3 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "d4947935715849bb198ef4e5d7116f24bacdba60fb9a0a7b63176b0602780a3d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4947935715849bb198ef4e5d7116f24bacdba60fb9a0a7b63176b0602780a3d", kill_on_drop: false }` [INFO] [stdout] d4947935715849bb198ef4e5d7116f24bacdba60fb9a0a7b63176b0602780a3d