[INFO] fetching crate klogger 0.0.16... [INFO] checking klogger-0.0.16 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate klogger 0.0.16 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate klogger 0.0.16 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 klogger 0.0.16 [INFO] finished tweaking crates.io crate klogger 0.0.16 [INFO] tweaked toml for crates.io crate klogger 0.0.16 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 42 packages to latest compatible versions [INFO] [stderr] Adding aligned v0.3.5 (latest: v0.4.2) [INFO] [stderr] Adding as-slice v0.1.5 (latest: v0.2.1) [INFO] [stderr] Adding bare-metal v0.2.5 (latest: v1.0.0) [INFO] [stderr] Adding bitfield v0.13.2 (latest: v0.16.1) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.6.0) [INFO] [stderr] Adding cortex-m v0.6.7 (latest: v0.7.7) [INFO] [stderr] Adding embedded-hal v0.2.7 (latest: v1.0.0) [INFO] [stderr] Adding generic-array v0.12.4 (latest: v1.1.0) [INFO] [stderr] Adding generic-array v0.13.3 (latest: v1.1.0) [INFO] [stderr] Adding generic-array v0.14.7 (latest: v1.1.0) [INFO] [stderr] Adding hash32 v0.2.1 (latest: v0.3.1) [INFO] [stderr] Adding heapless v0.7.17 (latest: v0.8.0) [INFO] [stderr] Adding nb v0.1.3 (latest: v1.1.0) [INFO] [stderr] Adding raw-cpuid v10.7.0 (latest: v11.1.0) [INFO] [stderr] Adding rustc_version v0.2.3 (latest: v0.4.1) [INFO] [stderr] Adding semver v0.9.0 (latest: v1.0.23) [INFO] [stderr] Adding semver-parser v0.7.0 (latest: v0.10.2) [INFO] [stderr] Adding spin v0.5.2 (latest: v0.9.8) [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] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [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] 77a4c9d1b877b677cb8a015bb383312356c49b6b2640cc049bd41bdf6bbf04ba [INFO] running `Command { std: "docker" "start" "-a" "77a4c9d1b877b677cb8a015bb383312356c49b6b2640cc049bd41bdf6bbf04ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "77a4c9d1b877b677cb8a015bb383312356c49b6b2640cc049bd41bdf6bbf04ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "77a4c9d1b877b677cb8a015bb383312356c49b6b2640cc049bd41bdf6bbf04ba", kill_on_drop: false }` [INFO] [stdout] 77a4c9d1b877b677cb8a015bb383312356c49b6b2640cc049bd41bdf6bbf04ba [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] 12568ce4975f1dff401b69a52b13ae7a2117b4e64f8ff0699627ad09a0a23580 [INFO] running `Command { std: "docker" "start" "-a" "12568ce4975f1dff401b69a52b13ae7a2117b4e64f8ff0699627ad09a0a23580", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling x86 v0.52.0 [INFO] [stderr] Checking bit_field v0.10.2 [INFO] [stderr] Checking termcodes v0.0.1 [INFO] [stderr] Checking spin v0.5.2 [INFO] [stderr] Checking raw-cpuid v10.7.0 [INFO] [stderr] Compiling heapless v0.7.17 [INFO] [stderr] Checking klogger v0.0.16 (/opt/rustwide/workdir) [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:276:25 [INFO] [stdout] | [INFO] [stdout] 276 | log::set_logger(&LOGGER).map(|()| log::set_max_level(LOGGER.filter())) [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 276 | log::set_logger(addr_of!(LOGGER)).map(|()| log::set_max_level(LOGGER.filter())) [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:276:62 [INFO] [stdout] | [INFO] [stdout] 276 | log::set_logger(&LOGGER).map(|()| log::set_max_level(LOGGER.filter())) [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] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/lib.rs:276:25 [INFO] [stdout] | [INFO] [stdout] 276 | log::set_logger(&LOGGER).map(|()| log::set_max_level(LOGGER.filter())) [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 276 | log::set_logger(addr_of!(LOGGER)).map(|()| log::set_max_level(LOGGER.filter())) [INFO] [stdout] | ~~~~~~~~~ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `klogger` (lib) 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/lib.rs:276:62 [INFO] [stdout] | [INFO] [stdout] 276 | log::set_logger(&LOGGER).map(|()| log::set_max_level(LOGGER.filter())) [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 `klogger` (lib test) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "12568ce4975f1dff401b69a52b13ae7a2117b4e64f8ff0699627ad09a0a23580", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "12568ce4975f1dff401b69a52b13ae7a2117b4e64f8ff0699627ad09a0a23580", kill_on_drop: false }` [INFO] [stdout] 12568ce4975f1dff401b69a52b13ae7a2117b4e64f8ff0699627ad09a0a23580