[INFO] cloning repository https://github.com/charliesome/kvmlinux [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/charliesome/kvmlinux" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharliesome%2Fkvmlinux", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharliesome%2Fkvmlinux'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4840e44627510fc96b68ad084ee24d9313eef8d4 [INFO] checking charliesome/kvmlinux/4840e44627510fc96b68ad084ee24d9313eef8d4 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcharliesome%2Fkvmlinux" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/charliesome/kvmlinux 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 git repo https://github.com/charliesome/kvmlinux [INFO] finished tweaking git repo https://github.com/charliesome/kvmlinux [INFO] tweaked toml for git repo https://github.com/charliesome/kvmlinux written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/charliesome/kvmlinux 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] 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] f61e54a8c006f19b63e827da3d93dff70b48e7741716a5362c7afd91eeb8b117 [INFO] running `Command { std: "docker" "start" "-a" "f61e54a8c006f19b63e827da3d93dff70b48e7741716a5362c7afd91eeb8b117", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f61e54a8c006f19b63e827da3d93dff70b48e7741716a5362c7afd91eeb8b117", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f61e54a8c006f19b63e827da3d93dff70b48e7741716a5362c7afd91eeb8b117", kill_on_drop: false }` [INFO] [stdout] f61e54a8c006f19b63e827da3d93dff70b48e7741716a5362c7afd91eeb8b117 [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] 86ce2157d6f03c4a54ef8579e250030417be80bbb0c6c59db96b83834ada7155 [INFO] running `Command { std: "docker" "start" "-a" "86ce2157d6f03c4a54ef8579e250030417be80bbb0c6c59db96b83834ada7155", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.77 [INFO] [stderr] Compiling proc-macro2 v1.0.23 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling syn v1.0.42 [INFO] [stderr] Checking arc-swap v0.4.7 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Checking vmm-sys-util v0.6.1 [INFO] [stderr] Checking signal-hook-registry v1.2.1 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking signal-hook v0.1.16 [INFO] [stderr] Checking kvm-bindings v0.3.0 [INFO] [stderr] Checking kvm-ioctls v0.5.0 [INFO] [stderr] Compiling derive_more v0.99.10 [INFO] [stderr] Checking kvmlinux v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/kernel.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | Io(io::Error) [INFO] [stdout] | -- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `LoadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 33 | Io(()) [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/main.rs:40:12 [INFO] [stdout] | [INFO] [stdout] 34 | let kvm = Kvm::new()?; [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 35 | let vm = kvm.create_vm()?; [INFO] [stdout] | -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 38 | let cpu = vm.create_vcpu(0)?; [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 39 | [INFO] [stdout] 40 | Ok(Machine { [INFO] [stdout] | ____________^ [INFO] [stdout] 41 | | kvm, [INFO] [stdout] 42 | | vm, [INFO] [stdout] 43 | | cpu, [INFO] [stdout] 44 | | }) [INFO] [stdout] | | ^ [INFO] [stdout] | | | [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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 `kvmlinux` (bin "kvmlinux") due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/kernel.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | Io(io::Error) [INFO] [stdout] | -- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `LoadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 33 | Io(()) [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/main.rs:40:12 [INFO] [stdout] | [INFO] [stdout] 34 | let kvm = Kvm::new()?; [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 35 | let vm = kvm.create_vm()?; [INFO] [stdout] | -- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 38 | let cpu = vm.create_vcpu(0)?; [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 39 | [INFO] [stdout] 40 | Ok(Machine { [INFO] [stdout] | ____________^ [INFO] [stdout] 41 | | kvm, [INFO] [stdout] 42 | | vm, [INFO] [stdout] 43 | | cpu, [INFO] [stdout] 44 | | }) [INFO] [stdout] | | ^ [INFO] [stdout] | | | [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_________these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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 `kvmlinux` (bin "kvmlinux" test) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "86ce2157d6f03c4a54ef8579e250030417be80bbb0c6c59db96b83834ada7155", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "86ce2157d6f03c4a54ef8579e250030417be80bbb0c6c59db96b83834ada7155", kill_on_drop: false }` [INFO] [stdout] 86ce2157d6f03c4a54ef8579e250030417be80bbb0c6c59db96b83834ada7155