[INFO] fetching crate lifeguard 0.6.1... [INFO] checking lifeguard-0.6.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate lifeguard 0.6.1 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate lifeguard 0.6.1 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 lifeguard 0.6.1 [INFO] finished tweaking crates.io crate lifeguard 0.6.1 [INFO] tweaked toml for crates.io crate lifeguard 0.6.1 written to /workspace/builds/worker-6-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] Blocking waiting for file lock on package cache [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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5b930b02e5662b736262b58c1adedbcc42c76c0c54011da757ee49aa9ca6279c [INFO] running `Command { std: "docker" "start" "-a" "5b930b02e5662b736262b58c1adedbcc42c76c0c54011da757ee49aa9ca6279c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5b930b02e5662b736262b58c1adedbcc42c76c0c54011da757ee49aa9ca6279c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b930b02e5662b736262b58c1adedbcc42c76c0c54011da757ee49aa9ca6279c", kill_on_drop: false }` [INFO] [stdout] 5b930b02e5662b736262b58c1adedbcc42c76c0c54011da757ee49aa9ca6279c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] ef70759bbf3ec8fbc5e70ac887349ded2b5be899fc018251cc600cf4d0047d03 [INFO] running `Command { std: "docker" "start" "-a" "ef70759bbf3ec8fbc5e70ac887349ded2b5be899fc018251cc600cf4d0047d03", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking lifeguard v0.6.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/lib.rs:607:25 [INFO] [stdout] | [INFO] [stdout] 607 | fn set_option(self, T) -> T; [INFO] [stdout] | ^ help: try naming the parameter or explicitly ignoring it: `_: T` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/lib.rs:607:25 [INFO] [stdout] | [INFO] [stdout] 607 | fn set_option(self, T) -> T; [INFO] [stdout] | ^ help: try naming the parameter or explicitly ignoring it: `_: T` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `new` and `new_from` are never used [INFO] [stdout] --> src/lib.rs:167:8 [INFO] [stdout] | [INFO] [stdout] 166 | impl <'a, T> $typ where T: Recycleable { [INFO] [stdout] | -------------------------------------- associated functions in this implementation [INFO] [stdout] 167 | fn new(pool: $pool, value: T) -> $typ { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 172 | fn new_from(pool: $pool, value: T, source: A) -> $typ where T : InitializeWith { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 185 | impl_recycled!{ RcRecycled, RcRecycled, Rc>> } [INFO] [stdout] | ----------------------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] = note: this warning originates in the macro `impl_recycled` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `new` and `new_from` are never used [INFO] [stdout] --> src/lib.rs:167:8 [INFO] [stdout] | [INFO] [stdout] 166 | impl <'a, T> $typ where T: Recycleable { [INFO] [stdout] | -------------------------------------- associated functions in this implementation [INFO] [stdout] 167 | fn new(pool: $pool, value: T) -> $typ { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 172 | fn new_from(pool: $pool, value: T, source: A) -> $typ where T : InitializeWith { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 186 | impl_recycled!{ Recycled, Recycled<'a, T>, &'a RefCell> } [INFO] [stdout] | ----------------------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `impl_recycled` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `new` and `new_from` are never used [INFO] [stdout] --> src/lib.rs:167:8 [INFO] [stdout] | [INFO] [stdout] 166 | impl <'a, T> $typ where T: Recycleable { [INFO] [stdout] | -------------------------------------- associated functions in this implementation [INFO] [stdout] 167 | fn new(pool: $pool, value: T) -> $typ { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 172 | fn new_from(pool: $pool, value: T, source: A) -> $typ where T : InitializeWith { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 185 | impl_recycled!{ RcRecycled, RcRecycled, Rc>> } [INFO] [stdout] | ----------------------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] = note: this warning originates in the macro `impl_recycled` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated functions `new` and `new_from` are never used [INFO] [stdout] --> src/lib.rs:167:8 [INFO] [stdout] | [INFO] [stdout] 166 | impl <'a, T> $typ where T: Recycleable { [INFO] [stdout] | -------------------------------------- associated functions in this implementation [INFO] [stdout] 167 | fn new(pool: $pool, value: T) -> $typ { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 172 | fn new_from(pool: $pool, value: T, source: A) -> $typ where T : InitializeWith { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 186 | impl_recycled!{ Recycled, Recycled<'a, T>, &'a RefCell> } [INFO] [stdout] | ----------------------------------------------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this warning originates in the macro `impl_recycled` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `lifeguard::Recycled<'_, Vec>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> tests/lib.rs:193:17 [INFO] [stdout] | [INFO] [stdout] 187 | let vec_pool : Pool> = Pool::with_size(1); [INFO] [stdout] | -------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 193 | let vec3 = vec_pool.new_from(0..3); [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `lifeguard` (test "lib") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "ef70759bbf3ec8fbc5e70ac887349ded2b5be899fc018251cc600cf4d0047d03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ef70759bbf3ec8fbc5e70ac887349ded2b5be899fc018251cc600cf4d0047d03", kill_on_drop: false }` [INFO] [stdout] ef70759bbf3ec8fbc5e70ac887349ded2b5be899fc018251cc600cf4d0047d03