[INFO] cloning repository https://github.com/ainozaki/kvm-based-vmm [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ainozaki/kvm-based-vmm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fainozaki%2Fkvm-based-vmm", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fainozaki%2Fkvm-based-vmm'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 37800d81f58aaaefd9f129216bcaa3ca971bcfae [INFO] checking ainozaki/kvm-based-vmm/37800d81f58aaaefd9f129216bcaa3ca971bcfae 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%2Fainozaki%2Fkvm-based-vmm" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ainozaki/kvm-based-vmm 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/ainozaki/kvm-based-vmm [INFO] finished tweaking git repo https://github.com/ainozaki/kvm-based-vmm [INFO] tweaked toml for git repo https://github.com/ainozaki/kvm-based-vmm written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/ainozaki/kvm-based-vmm 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] caedc7d16f4ddc6696bae4dfded7742a5846dd5967bac2b0bbb7efcdf6e11c3f [INFO] running `Command { std: "docker" "start" "-a" "caedc7d16f4ddc6696bae4dfded7742a5846dd5967bac2b0bbb7efcdf6e11c3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "caedc7d16f4ddc6696bae4dfded7742a5846dd5967bac2b0bbb7efcdf6e11c3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "caedc7d16f4ddc6696bae4dfded7742a5846dd5967bac2b0bbb7efcdf6e11c3f", kill_on_drop: false }` [INFO] [stdout] caedc7d16f4ddc6696bae4dfded7742a5846dd5967bac2b0bbb7efcdf6e11c3f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 023b39b40bc3a4747707d81cfc3a8ce5b846b133304212ab5a61d0e3c970195f [INFO] running `Command { std: "docker" "start" "-a" "023b39b40bc3a4747707d81cfc3a8ce5b846b133304212ab5a61d0e3c970195f", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.148 [INFO] [stderr] Compiling kvm-ioctls v0.15.0 [INFO] [stderr] Checking vmm-sys-util v0.11.1 [INFO] [stderr] Checking kvm-bindings v0.6.0 [INFO] [stderr] Checking kvm-based-hypervisor v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/kvm/vm.rs:120:42 [INFO] [stdout] | [INFO] [stdout] 120 | VcpuExit::MmioRead(addr, data) => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/kvm/vm.rs:123:43 [INFO] [stdout] | [INFO] [stdout] 123 | VcpuExit::MmioWrite(addr, data) => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `guest_addr` is never read [INFO] [stdout] --> src/kvm/vm.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Vm { [INFO] [stdout] | -- field in this struct [INFO] [stdout] ... [INFO] [stdout] 11 | guest_addr: u64, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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/kvm/vm.rs:96:12 [INFO] [stdout] | [INFO] [stdout] 19 | let kvm = Kvm::new().unwrap(); [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 26 | let vm_fd = kvm.create_vm().unwrap(); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 76 | let vcpu_fd = vm_fd.create_vcpu(0).unwrap(); [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 96 | Ok(Vm { [INFO] [stdout] | ____________^ [INFO] [stdout] 97 | | vm_fd: vm_fd, [INFO] [stdout] 98 | | vcpu_fd: vcpu_fd, [INFO] [stdout] 99 | | mem_size: mem_size, [INFO] [stdout] 100 | | guest_addr: guest_addr, [INFO] [stdout] 101 | | }) [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; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `kvm-based-hypervisor` (bin "kvm-based-hypervisor") due to 2 previous errors; 3 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/kvm/vm.rs:120:42 [INFO] [stdout] | [INFO] [stdout] 120 | VcpuExit::MmioRead(addr, data) => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `data` [INFO] [stdout] --> src/kvm/vm.rs:123:43 [INFO] [stdout] | [INFO] [stdout] 123 | VcpuExit::MmioWrite(addr, data) => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `guest_addr` is never read [INFO] [stdout] --> src/kvm/vm.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Vm { [INFO] [stdout] | -- field in this struct [INFO] [stdout] ... [INFO] [stdout] 11 | guest_addr: u64, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` 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/kvm/vm.rs:96:12 [INFO] [stdout] | [INFO] [stdout] 19 | let kvm = Kvm::new().unwrap(); [INFO] [stdout] | --- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 26 | let vm_fd = kvm.create_vm().unwrap(); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 76 | let vcpu_fd = vm_fd.create_vcpu(0).unwrap(); [INFO] [stdout] | ------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 96 | Ok(Vm { [INFO] [stdout] | ____________^ [INFO] [stdout] 97 | | vm_fd: vm_fd, [INFO] [stdout] 98 | | vcpu_fd: vcpu_fd, [INFO] [stdout] 99 | | mem_size: mem_size, [INFO] [stdout] 100 | | guest_addr: guest_addr, [INFO] [stdout] 101 | | }) [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; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `kvm-based-hypervisor` (bin "kvm-based-hypervisor" test) due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "023b39b40bc3a4747707d81cfc3a8ce5b846b133304212ab5a61d0e3c970195f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "023b39b40bc3a4747707d81cfc3a8ce5b846b133304212ab5a61d0e3c970195f", kill_on_drop: false }` [INFO] [stdout] 023b39b40bc3a4747707d81cfc3a8ce5b846b133304212ab5a61d0e3c970195f