[INFO] fetching crate vt 0.2.1... [INFO] checking vt-0.2.1 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate vt 0.2.1 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate vt 0.2.1 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 vt 0.2.1 [INFO] finished tweaking crates.io crate vt 0.2.1 [INFO] tweaked toml for crates.io crate vt 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate crates.io crate vt 0.2.1 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] 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] 70d75fd696017ad415e8b91713c2a2099d7eb64a9e2123d5febabe7f7f7cb0e8 [INFO] running `Command { std: "docker" "start" "-a" "70d75fd696017ad415e8b91713c2a2099d7eb64a9e2123d5febabe7f7f7cb0e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "70d75fd696017ad415e8b91713c2a2099d7eb64a9e2123d5febabe7f7f7cb0e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70d75fd696017ad415e8b91713c2a2099d7eb64a9e2123d5febabe7f7f7cb0e8", kill_on_drop: false }` [INFO] [stdout] 70d75fd696017ad415e8b91713c2a2099d7eb64a9e2123d5febabe7f7f7cb0e8 [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] d4cd50c059f48c83085e834899160dd7ab52e52cbfa877522c5e43275d4979c6 [INFO] running `Command { std: "docker" "start" "-a" "d4cd50c059f48c83085e834899160dd7ab52e52cbfa877522c5e43275d4979c6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling nix v0.15.0 [INFO] [stderr] Checking cfg-if v0.1.9 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking vt v0.2.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/ffi.rs:29:48 [INFO] [stdout] | [INFO] [stdout] 29 | let mut data: $t = ::std::mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 66 | ioctl_get_wrapper!(vt_openqry, VT_OPENQRY, c_int); [INFO] [stdout] | ------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/ffi.rs:29:48 [INFO] [stdout] | [INFO] [stdout] 29 | let mut data: $t = ::std::mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 67 | ioctl_get_wrapper!(vt_getstate, VT_GETSTATE, VtStat); [INFO] [stdout] | ---------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/ffi.rs:29:48 [INFO] [stdout] | [INFO] [stdout] 29 | let mut data: $t = ::std::mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 66 | ioctl_get_wrapper!(vt_openqry, VT_OPENQRY, c_int); [INFO] [stdout] | ------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead [INFO] [stdout] --> src/ffi.rs:29:48 [INFO] [stdout] | [INFO] [stdout] 29 | let mut data: $t = ::std::mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 67 | ioctl_get_wrapper!(vt_getstate, VT_GETSTATE, VtStat); [INFO] [stdout] | ---------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `i32` does not permit being left uninitialized [INFO] [stdout] --> src/ffi.rs:29:36 [INFO] [stdout] | [INFO] [stdout] 29 | let mut data: $t = ::std::mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] ... [INFO] [stdout] 66 | ioctl_get_wrapper!(vt_openqry, VT_OPENQRY, c_int); [INFO] [stdout] | ------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `VtStat` does not permit being left uninitialized [INFO] [stdout] --> src/ffi.rs:29:36 [INFO] [stdout] | [INFO] [stdout] 29 | let mut data: $t = ::std::mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] ... [INFO] [stdout] 67 | ioctl_get_wrapper!(vt_getstate, VT_GETSTATE, VtStat); [INFO] [stdout] | ---------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] note: integers must be initialized (in this struct field) [INFO] [stdout] --> src/ffi.rs:19:2 [INFO] [stdout] | [INFO] [stdout] 19 | pub v_active: c_ushort, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info) [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/console.rs:137:17 [INFO] [stdout] | [INFO] [stdout] 135 | .and_then(|mut f| { [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 136 | let mut s = String::new(); [INFO] [stdout] 137 | f.read_to_string(&mut s).map(|_| s.trim().parse().expect("Expected consoleblank to contain an unsigned integer")) [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] warning: the type `i32` does not permit being left uninitialized [INFO] [stdout] --> src/ffi.rs:29:36 [INFO] [stdout] | [INFO] [stdout] 29 | let mut data: $t = ::std::mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] ... [INFO] [stdout] 66 | ioctl_get_wrapper!(vt_openqry, VT_OPENQRY, c_int); [INFO] [stdout] | ------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: integers must be initialized [INFO] [stdout] = note: `#[warn(invalid_value)]` on by default [INFO] [stdout] = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the type `VtStat` does not permit being left uninitialized [INFO] [stdout] --> src/ffi.rs:29:36 [INFO] [stdout] | [INFO] [stdout] 29 | let mut data: $t = ::std::mem::uninitialized(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this code causes undefined behavior when executed [INFO] [stdout] | help: use `MaybeUninit` instead, and only call `assume_init` after initialization is done [INFO] [stdout] ... [INFO] [stdout] 67 | ioctl_get_wrapper!(vt_getstate, VT_GETSTATE, VtStat); [INFO] [stdout] | ---------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] note: integers must be initialized (in this struct field) [INFO] [stdout] --> src/ffi.rs:19:2 [INFO] [stdout] | [INFO] [stdout] 19 | pub v_active: c_ushort, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: this warning originates in the macro `ioctl_get_wrapper` (in Nightly builds, run with -Z macro-backtrace for more info) [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/console.rs:137:17 [INFO] [stdout] | [INFO] [stdout] 135 | .and_then(|mut f| { [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 136 | let mut s = String::new(); [INFO] [stdout] 137 | f.read_to_string(&mut s).map(|_| s.trim().parse().expect("Expected consoleblank to contain an unsigned integer")) [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; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `vt` (lib) due to 2 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `vt` (lib test) due to 2 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "d4cd50c059f48c83085e834899160dd7ab52e52cbfa877522c5e43275d4979c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4cd50c059f48c83085e834899160dd7ab52e52cbfa877522c5e43275d4979c6", kill_on_drop: false }` [INFO] [stdout] d4cd50c059f48c83085e834899160dd7ab52e52cbfa877522c5e43275d4979c6