[INFO] fetching crate fp_rust 0.3.5... [INFO] checking fp_rust-0.3.5 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate fp_rust 0.3.5 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate fp_rust 0.3.5 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate fp_rust 0.3.5 [INFO] finished tweaking crates.io crate fp_rust 0.3.5 [INFO] tweaked toml for crates.io crate fp_rust 0.3.5 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 24 packages to latest compatible versions [INFO] [stderr] Adding hermit-abi v0.3.9 (available: v0.4.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9a762055c21cb2b36f7afd820d4060ff09ed317b2ee8fb7adc9680ad6a583535 [INFO] running `Command { std: "docker" "start" "-a" "9a762055c21cb2b36f7afd820d4060ff09ed317b2ee8fb7adc9680ad6a583535", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9a762055c21cb2b36f7afd820d4060ff09ed317b2ee8fb7adc9680ad6a583535", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a762055c21cb2b36f7afd820d4060ff09ed317b2ee8fb7adc9680ad6a583535", kill_on_drop: false }` [INFO] [stdout] 9a762055c21cb2b36f7afd820d4060ff09ed317b2ee8fb7adc9680ad6a583535 [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] aa8e83249f8f33d7d2bcd932ba3cfda35e4add93412d2601966165da0980f635 [INFO] running `Command { std: "docker" "start" "-a" "aa8e83249f8f33d7d2bcd932ba3cfda35e4add93412d2601966165da0980f635", kill_on_drop: false }` [INFO] [stderr] Checking fp_rust v0.3.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/fp.rs:38:24 [INFO] [stdout] | [INFO] [stdout] 38 | $func($($x), *); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 226 | (compose!(reduce!(|a, b| a * b), filter!(|x| *x < 6), map!(|x| x * 2)))(vec![1, 2, 3, 4]); [INFO] [stdout] | --------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default [INFO] [stdout] = note: this warning originates in the macro `spread_and_call` which comes from the expansion of the macro `map` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/fp.rs:38:24 [INFO] [stdout] | [INFO] [stdout] 38 | $func($($x), *); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 226 | (compose!(reduce!(|a, b| a * b), filter!(|x| *x < 6), map!(|x| x * 2)))(vec![1, 2, 3, 4]); [INFO] [stdout] | ------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: this warning originates in the macro `spread_and_call` which comes from the expansion of the macro `filter` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/fp.rs:38:24 [INFO] [stdout] | [INFO] [stdout] 38 | $func($($x), *); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 226 | (compose!(reduce!(|a, b| a * b), filter!(|x| *x < 6), map!(|x| x * 2)))(vec![1, 2, 3, 4]); [INFO] [stdout] | --------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: this warning originates in the macro `spread_and_call` which comes from the expansion of the macro `reduce` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/fp.rs:38:24 [INFO] [stdout] | [INFO] [stdout] 38 | $func($($x), *); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 245 | map!(|x| x * 2) [INFO] [stdout] | --------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: this warning originates in the macro `spread_and_call` which comes from the expansion of the macro `map` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/fp.rs:38:24 [INFO] [stdout] | [INFO] [stdout] 38 | $func($($x), *); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 244 | filter!(|x| *x < 6), [INFO] [stdout] | ------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: this warning originates in the macro `spread_and_call` which comes from the expansion of the macro `filter` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/fp.rs:38:24 [INFO] [stdout] | [INFO] [stdout] 38 | $func($($x), *); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 235 | / foldl!( [INFO] [stdout] 236 | | |a, b| { [INFO] [stdout] 237 | | if a < 4 { [INFO] [stdout] 238 | | return a + b; [INFO] [stdout] ... | [INFO] [stdout] 242 | | 0 [INFO] [stdout] 243 | | ), [INFO] [stdout] | |_________- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: this warning originates in the macro `spread_and_call` which comes from the expansion of the macro `foldl` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/fp.rs:38:24 [INFO] [stdout] | [INFO] [stdout] 38 | $func($($x), *); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 262 | map!(|x| x * 2) [INFO] [stdout] | --------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: this warning originates in the macro `spread_and_call` which comes from the expansion of the macro `map` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/fp.rs:38:24 [INFO] [stdout] | [INFO] [stdout] 38 | $func($($x), *); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 261 | filter!(|x| *x < 6), [INFO] [stdout] | ------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: this warning originates in the macro `spread_and_call` which comes from the expansion of the macro `filter` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/fp.rs:38:24 [INFO] [stdout] | [INFO] [stdout] 38 | $func($($x), *); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 252 | / foldr!( [INFO] [stdout] 253 | | |a, b| { [INFO] [stdout] 254 | | if a < 4 { [INFO] [stdout] 255 | | return a + b; [INFO] [stdout] ... | [INFO] [stdout] 259 | | 0 [INFO] [stdout] 260 | | ), [INFO] [stdout] | |_________- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: this warning originates in the macro `spread_and_call` which comes from the expansion of the macro `foldr` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trailing semicolon in macro used in expression position [INFO] [stdout] --> src/fp.rs:38:24 [INFO] [stdout] | [INFO] [stdout] 38 | $func($($x), *); [INFO] [stdout] | ^ [INFO] [stdout] ... [INFO] [stdout] 270 | assert_eq!(true, contains!(&4)(vec![1, 2, 3, 4])); [INFO] [stdout] | ------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stdout] = note: for more information, see issue #79813 [INFO] [stdout] = note: this warning originates in the macro `spread_and_call` which comes from the expansion of the macro `contains` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `MutexGuard<'_, String>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/cor.rs:610:28 [INFO] [stdout] | [INFO] [stdout] 566 | let v = Arc::new(Mutex::new(String::from(""))); [INFO] [stdout] | - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 607 | let _v = v.clone(); [INFO] [stdout] | -- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 610 | assert_eq!("123", *_v.lock().unwrap()); [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; 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fp_rust` (lib test) due to 2 previous errors; 20 warnings emitted [INFO] running `Command { std: "docker" "inspect" "aa8e83249f8f33d7d2bcd932ba3cfda35e4add93412d2601966165da0980f635", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aa8e83249f8f33d7d2bcd932ba3cfda35e4add93412d2601966165da0980f635", kill_on_drop: false }` [INFO] [stdout] aa8e83249f8f33d7d2bcd932ba3cfda35e4add93412d2601966165da0980f635