[INFO] cloning repository https://github.com/1234567panadol/linked_list [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/1234567panadol/linked_list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1234567panadol%2Flinked_list", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1234567panadol%2Flinked_list'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0c4bc61f791a8b641e1ab5185752932e54a2f520 [INFO] checking 1234567panadol/linked_list against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1234567panadol%2Flinked_list" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/1234567panadol/linked_list on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/1234567panadol/linked_list [INFO] finished tweaking git repo https://github.com/1234567panadol/linked_list [INFO] tweaked toml for git repo https://github.com/1234567panadol/linked_list written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/1234567panadol/linked_list 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 521f48b8648dee59943d881a50ea2b657fed1ce343497a01679dde65c11fb100 [INFO] running `Command { std: "docker" "start" "-a" "521f48b8648dee59943d881a50ea2b657fed1ce343497a01679dde65c11fb100", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "521f48b8648dee59943d881a50ea2b657fed1ce343497a01679dde65c11fb100", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "521f48b8648dee59943d881a50ea2b657fed1ce343497a01679dde65c11fb100", kill_on_drop: false }` [INFO] [stdout] 521f48b8648dee59943d881a50ea2b657fed1ce343497a01679dde65c11fb100 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e39aabd6d28eefcf251776cae97f4af314253a54ca7be6ea4356277adeef10f6 [INFO] running `Command { std: "docker" "start" "-a" "e39aabd6d28eefcf251776cae97f4af314253a54ca7be6ea4356277adeef10f6", kill_on_drop: false }` [INFO] [stderr] Checking linked-list v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function `new_nonnull` is never used [INFO] [stdout] --> src/linked_list.rs:59:8 [INFO] [stdout] | [INFO] [stdout] 57 | trait BoxToNonNull { [INFO] [stdout] | ------------ associated function in this trait [INFO] [stdout] 58 | type Item; [INFO] [stdout] 59 | fn new_nonnull(x: Self::Item) -> NonNull; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple methods are never used [INFO] [stdout] --> src/linked_list.rs:126:12 [INFO] [stdout] | [INFO] [stdout] 84 | impl List { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 126 | pub fn front(&self) -> Option<&T> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 134 | pub fn front_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | pub fn back(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 150 | pub fn back_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 158 | pub fn append_front(&mut self, other: &mut Self) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 168 | pub fn append_back(&mut self, other: &mut Self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 178 | pub fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new_nonnull` is never used [INFO] [stdout] --> src/linked_list.rs:59:8 [INFO] [stdout] | [INFO] [stdout] 57 | trait BoxToNonNull { [INFO] [stdout] | ------------ associated function in this trait [INFO] [stdout] 58 | type Item; [INFO] [stdout] 59 | fn new_nonnull(x: Self::Item) -> NonNull; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple methods are never used [INFO] [stdout] --> src/linked_list.rs:126:12 [INFO] [stdout] | [INFO] [stdout] 84 | impl List { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 126 | pub fn front(&self) -> Option<&T> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 134 | pub fn front_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | pub fn back(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 150 | pub fn back_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 158 | pub fn append_front(&mut self, other: &mut Self) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 168 | pub fn append_back(&mut self, other: &mut Self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 178 | pub fn iter(&self) -> Iter { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] running `Command { std: "docker" "inspect" "e39aabd6d28eefcf251776cae97f4af314253a54ca7be6ea4356277adeef10f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e39aabd6d28eefcf251776cae97f4af314253a54ca7be6ea4356277adeef10f6", kill_on_drop: false }` [INFO] [stdout] e39aabd6d28eefcf251776cae97f4af314253a54ca7be6ea4356277adeef10f6 [INFO] checking 1234567panadol/linked_list against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F1234567panadol%2Flinked_list" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/1234567panadol/linked_list on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/1234567panadol/linked_list [INFO] finished tweaking git repo https://github.com/1234567panadol/linked_list [INFO] tweaked toml for git repo https://github.com/1234567panadol/linked_list written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/1234567panadol/linked_list 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cec3c43fb0c1d135c0eeacea8f3abd5a8485f086a5a5bb23e2c9ed2326169642 [INFO] running `Command { std: "docker" "start" "-a" "cec3c43fb0c1d135c0eeacea8f3abd5a8485f086a5a5bb23e2c9ed2326169642", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cec3c43fb0c1d135c0eeacea8f3abd5a8485f086a5a5bb23e2c9ed2326169642", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cec3c43fb0c1d135c0eeacea8f3abd5a8485f086a5a5bb23e2c9ed2326169642", kill_on_drop: false }` [INFO] [stdout] cec3c43fb0c1d135c0eeacea8f3abd5a8485f086a5a5bb23e2c9ed2326169642 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 393a5b78f3defb0a1e8406bbf161eca044d88f46fdf9cd74cb25483dd5660e3f [INFO] running `Command { std: "docker" "start" "-a" "393a5b78f3defb0a1e8406bbf161eca044d88f46fdf9cd74cb25483dd5660e3f", kill_on_drop: false }` [INFO] [stderr] Checking linked-list v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: associated function `new_nonnull` is never used [INFO] [stdout] --> src/linked_list.rs:59:8 [INFO] [stdout] | [INFO] [stdout] 57 | trait BoxToNonNull { [INFO] [stdout] | ------------ associated function in this trait [INFO] [stdout] 58 | type Item; [INFO] [stdout] 59 | fn new_nonnull(x: Self::Item) -> NonNull; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple methods are never used [INFO] [stdout] --> src/linked_list.rs:126:12 [INFO] [stdout] | [INFO] [stdout] 84 | impl List { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 126 | pub fn front(&self) -> Option<&T> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 134 | pub fn front_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | pub fn back(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 150 | pub fn back_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 158 | pub fn append_front(&mut self, other: &mut Self) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 168 | pub fn append_back(&mut self, other: &mut Self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 178 | pub fn iter(&self) -> Iter { [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/linked_list.rs:73:42 [INFO] [stdout] | [INFO] [stdout] 72 | let boxed = Box::new_uninit(); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 73 | NonNull::new_unchecked(Box::leak(boxed.assume_init())) [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: associated function `new_nonnull` is never used [INFO] [stdout] --> src/linked_list.rs:59:8 [INFO] [stdout] | [INFO] [stdout] 57 | trait BoxToNonNull { [INFO] [stdout] | ------------ associated function in this trait [INFO] [stdout] 58 | type Item; [INFO] [stdout] 59 | fn new_nonnull(x: Self::Item) -> NonNull; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple methods are never used [INFO] [stdout] --> src/linked_list.rs:126:12 [INFO] [stdout] | [INFO] [stdout] 84 | impl List { [INFO] [stdout] | --------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 126 | pub fn front(&self) -> Option<&T> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] ... [INFO] [stdout] 134 | pub fn front_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 142 | pub fn back(&self) -> Option<&T> { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 150 | pub fn back_mut(&mut self) -> Option<&mut T> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 158 | pub fn append_front(&mut self, other: &mut Self) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 168 | pub fn append_back(&mut self, other: &mut Self) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 178 | pub fn iter(&self) -> Iter { [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/linked_list.rs:73:42 [INFO] [stdout] | [INFO] [stdout] 72 | let boxed = Box::new_uninit(); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 73 | NonNull::new_unchecked(Box::leak(boxed.assume_init())) [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; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `linked-list` (bin "linked-list" test) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `linked-list` (bin "linked-list") due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "393a5b78f3defb0a1e8406bbf161eca044d88f46fdf9cd74cb25483dd5660e3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "393a5b78f3defb0a1e8406bbf161eca044d88f46fdf9cd74cb25483dd5660e3f", kill_on_drop: false }` [INFO] [stdout] 393a5b78f3defb0a1e8406bbf161eca044d88f46fdf9cd74cb25483dd5660e3f