[INFO] cloning repository https://github.com/d-sonuga/mathevaluator [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/d-sonuga/mathevaluator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd-sonuga%2Fmathevaluator", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd-sonuga%2Fmathevaluator'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 83c280f0fbe3126c39563fddc16928e04147edc4 [INFO] building d-sonuga/mathevaluator against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fd-sonuga%2Fmathevaluator" "/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/d-sonuga/mathevaluator on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/d-sonuga/mathevaluator [INFO] finished tweaking git repo https://github.com/d-sonuga/mathevaluator [INFO] tweaked toml for git repo https://github.com/d-sonuga/mathevaluator written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/d-sonuga/mathevaluator 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a2df646cc64a88b4a8c734c89a2bd07437d91545150c6989dab3f930e17a9e27 [INFO] running `Command { std: "docker" "start" "-a" "a2df646cc64a88b4a8c734c89a2bd07437d91545150c6989dab3f930e17a9e27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a2df646cc64a88b4a8c734c89a2bd07437d91545150c6989dab3f930e17a9e27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a2df646cc64a88b4a8c734c89a2bd07437d91545150c6989dab3f930e17a9e27", kill_on_drop: false }` [INFO] [stdout] a2df646cc64a88b4a8c734c89a2bd07437d91545150c6989dab3f930e17a9e27 [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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8edc972e731e90bea87d1782885664da52dbe4fa2a28a924f5176f32f0cc1d60 [INFO] running `Command { std: "docker" "start" "-a" "8edc972e731e90bea87d1782885664da52dbe4fa2a28a924f5176f32f0cc1d60", kill_on_drop: false }` [INFO] [stderr] Compiling calc v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/main.rs:38:23 [INFO] [stdout] | [INFO] [stdout] 37 | let mut parser = Parser::new(tokens); [INFO] [stdout] | ---------- [INFO] [stdout] | | [INFO] [stdout] | `parser` calls a custom destructor [INFO] [stdout] | `parser` will be dropped later as of Edition 2024 [INFO] [stdout] 38 | match parser.parse() { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this value will be stored in a temporary; let us call it `#1` [INFO] [stdout] | up until Edition 2021 `#1` is dropped last but will be dropped earlier in Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 48 | }, [INFO] [stdout] | - now the temporary value is dropped here, before the local variables in the block or statement [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#1` may invoke a custom destructor because it contains a trait object [INFO] [stdout] = note: `parser` may invoke a custom destructor because it contains a trait object [INFO] [stdout] = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `binding_power` is never read [INFO] [stdout] --> src/main.rs:439:5 [INFO] [stdout] | [INFO] [stdout] 438 | struct NameParselet { [INFO] [stdout] | ------------ field in this struct [INFO] [stdout] 439 | binding_power: i32 [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `NameParselet` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `calc` (bin "calc") due to 1 previous error; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "8edc972e731e90bea87d1782885664da52dbe4fa2a28a924f5176f32f0cc1d60", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8edc972e731e90bea87d1782885664da52dbe4fa2a28a924f5176f32f0cc1d60", kill_on_drop: false }` [INFO] [stdout] 8edc972e731e90bea87d1782885664da52dbe4fa2a28a924f5176f32f0cc1d60