[INFO] cloning repository https://github.com/NoahJinnn/thirteen-turtle [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NoahJinnn/thirteen-turtle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNoahJinnn%2Fthirteen-turtle", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNoahJinnn%2Fthirteen-turtle'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1264cff6af6bf6230543de1189425f8502a88b48 [INFO] checking NoahJinnn/thirteen-turtle/1264cff6af6bf6230543de1189425f8502a88b48 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNoahJinnn%2Fthirteen-turtle" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NoahJinnn/thirteen-turtle 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 git repo https://github.com/NoahJinnn/thirteen-turtle [INFO] finished tweaking git repo https://github.com/NoahJinnn/thirteen-turtle [INFO] tweaked toml for git repo https://github.com/NoahJinnn/thirteen-turtle written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/NoahJinnn/thirteen-turtle 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8a415efc74bf1bca64d8cfff01a168bfb1cd1aa2f3e95161f27000c1223e6383 [INFO] running `Command { std: "docker" "start" "-a" "8a415efc74bf1bca64d8cfff01a168bfb1cd1aa2f3e95161f27000c1223e6383", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8a415efc74bf1bca64d8cfff01a168bfb1cd1aa2f3e95161f27000c1223e6383", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8a415efc74bf1bca64d8cfff01a168bfb1cd1aa2f3e95161f27000c1223e6383", kill_on_drop: false }` [INFO] [stdout] 8a415efc74bf1bca64d8cfff01a168bfb1cd1aa2f3e95161f27000c1223e6383 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] f381ed1ec557d2354161227b7873972a494233f91834cb5146109e1f61d99548 [INFO] running `Command { std: "docker" "start" "-a" "f381ed1ec557d2354161227b7873972a494233f91834cb5146109e1f61d99548", kill_on_drop: false }` [INFO] [stderr] Checking thirteen-turtle v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `color` is never read [INFO] [stdout] --> src/fp_tt.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct TurtleState { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 15 | pub color: PenColor, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Pointed` is never used [INFO] [stdout] --> src/state_monad_tt.rs:12:7 [INFO] [stdout] | [INFO] [stdout] 12 | trait Pointed [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Identity` is never constructed [INFO] [stdout] --> src/state_monad_tt.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | struct Identity(T); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Functor` is never used [INFO] [stdout] --> src/state_monad_tt.rs:33:7 [INFO] [stdout] | [INFO] [stdout] 33 | trait Functor: Pointed { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Monad` is never used [INFO] [stdout] --> src/state_monad_tt.rs:44:7 [INFO] [stdout] | [INFO] [stdout] 44 | trait Monad: Functor { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/api_oo_tt.rs:76:9 [INFO] [stdout] | [INFO] [stdout] 76 | turtle_oo_api("Move 100.0"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 76 | let _ = turtle_oo_api("Move 100.0"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/api_oo_tt.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 77 | turtle_oo_api("Turn 120.0"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 77 | let _ = turtle_oo_api("Turn 120.0"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/api_oo_tt.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | turtle_oo_api("Move 100.0"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 78 | let _ = turtle_oo_api("Move 100.0"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/api_oo_tt.rs:79:9 [INFO] [stdout] | [INFO] [stdout] 79 | turtle_oo_api("Turn 120.0"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 79 | let _ = turtle_oo_api("Turn 120.0"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/api_oo_tt.rs:80:9 [INFO] [stdout] | [INFO] [stdout] 80 | turtle_oo_api("Move 100.0"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 80 | let _ = turtle_oo_api("Move 100.0"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/api_oo_tt.rs:81:9 [INFO] [stdout] | [INFO] [stdout] 81 | turtle_oo_api("Turn 120.0"); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 81 | let _ = turtle_oo_api("Turn 120.0"); [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/state_monad_tt.rs:40:15 [INFO] [stdout] | [INFO] [stdout] 35 | fn map(self, f: F) -> B [INFO] [stdout] | ---- ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 40 | B::of(f(self.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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/state_monad_tt.rs:50:15 [INFO] [stdout] | [INFO] [stdout] 45 | fn chain(self, f: F) -> M [INFO] [stdout] | ---- ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 50 | f(self.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] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `thirteen-turtle` (bin "thirteen-turtle" test) due to 3 previous errors; 11 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: function `validate_distance` is never used [INFO] [stdout] --> src/api_oo_tt.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 25 | pub fn validate_distance(d: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `validate_angle` is never used [INFO] [stdout] --> src/api_oo_tt.rs:30:8 [INFO] [stdout] | [INFO] [stdout] 30 | pub fn validate_angle(a: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `validate_color` is never used [INFO] [stdout] --> src/api_oo_tt.rs:35:8 [INFO] [stdout] | [INFO] [stdout] 35 | pub fn validate_color(color: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `turtle_oo_api` is never used [INFO] [stdout] --> src/api_oo_tt.rs:40:8 [INFO] [stdout] | [INFO] [stdout] 40 | pub fn turtle_oo_api(command: &str) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `color` is never read [INFO] [stdout] --> src/fp_tt.rs:15:9 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct TurtleState { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 15 | pub color: PenColor, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Pointed` is never used [INFO] [stdout] --> src/state_monad_tt.rs:12:7 [INFO] [stdout] | [INFO] [stdout] 12 | trait Pointed [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Identity` is never constructed [INFO] [stdout] --> src/state_monad_tt.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | struct Identity(T); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Functor` is never used [INFO] [stdout] --> src/state_monad_tt.rs:33:7 [INFO] [stdout] | [INFO] [stdout] 33 | trait Functor: Pointed { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait `Monad` is never used [INFO] [stdout] --> src/state_monad_tt.rs:44:7 [INFO] [stdout] | [INFO] [stdout] 44 | trait Monad: Functor { [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/state_monad_tt.rs:40:15 [INFO] [stdout] | [INFO] [stdout] 35 | fn map(self, f: F) -> B [INFO] [stdout] | ---- ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 40 | B::of(f(self.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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/state_monad_tt.rs:50:15 [INFO] [stdout] | [INFO] [stdout] 45 | fn chain(self, f: F) -> M [INFO] [stdout] | ---- ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 50 | f(self.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] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `thirteen-turtle` (bin "thirteen-turtle") due to 3 previous errors; 9 warnings emitted [INFO] running `Command { std: "docker" "inspect" "f381ed1ec557d2354161227b7873972a494233f91834cb5146109e1f61d99548", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f381ed1ec557d2354161227b7873972a494233f91834cb5146109e1f61d99548", kill_on_drop: false }` [INFO] [stdout] f381ed1ec557d2354161227b7873972a494233f91834cb5146109e1f61d99548