[INFO] cloning repository https://github.com/thomasebsmith/advent-of-code [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thomasebsmith/advent-of-code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasebsmith%2Fadvent-of-code", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasebsmith%2Fadvent-of-code'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f120eeea41499ec22cbe2a718611f85e12c07aa8 [INFO] building thomasebsmith/advent-of-code 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%2Fthomasebsmith%2Fadvent-of-code" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/thomasebsmith/advent-of-code 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] removed /workspace/builds/worker-4-tc1/source/rust-toolchain [INFO] started tweaking git repo https://github.com/thomasebsmith/advent-of-code [INFO] finished tweaking git repo https://github.com/thomasebsmith/advent-of-code [INFO] tweaked toml for git repo https://github.com/thomasebsmith/advent-of-code written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/thomasebsmith/advent-of-code 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1af7bd3e9ee71e26cd772e176a6df2c3b78c54e3c0705d712c5973b970678bb5 [INFO] running `Command { std: "docker" "start" "-a" "1af7bd3e9ee71e26cd772e176a6df2c3b78c54e3c0705d712c5973b970678bb5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1af7bd3e9ee71e26cd772e176a6df2c3b78c54e3c0705d712c5973b970678bb5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1af7bd3e9ee71e26cd772e176a6df2c3b78c54e3c0705d712c5973b970678bb5", kill_on_drop: false }` [INFO] [stdout] 1af7bd3e9ee71e26cd772e176a6df2c3b78c54e3c0705d712c5973b970678bb5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 3696107c189c74853b34fd19aee85e378100c954190145ecb6c8abd5582ee744 [INFO] running `Command { std: "docker" "start" "-a" "3696107c189c74853b34fd19aee85e378100c954190145ecb6c8abd5582ee744", kill_on_drop: false }` [INFO] [stderr] Compiling advent-of-code v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/iter.rs:15:11 [INFO] [stdout] | [INFO] [stdout] 14 | let result = iter.next()?; [INFO] [stdout] | ------ [INFO] [stdout] | | [INFO] [stdout] | `result` calls a custom destructor [INFO] [stdout] | `result` will be dropped later as of Edition 2024 [INFO] [stdout] 15 | match iter.next() { [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] 19 | } [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: 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] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/iter.rs:97:32 [INFO] [stdout] | [INFO] [stdout] 97 | while let Some(item) = self.iter.next() { [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] | `item` calls a custom destructor [INFO] [stdout] | `item` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 103 | } [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: 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] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/year2023/day03.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 12 | Symbol(char), [INFO] [stdout] | ------ ^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Bit` 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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 12 | Symbol(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `advent-of-code` (bin "advent-of-code") due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "3696107c189c74853b34fd19aee85e378100c954190145ecb6c8abd5582ee744", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3696107c189c74853b34fd19aee85e378100c954190145ecb6c8abd5582ee744", kill_on_drop: false }` [INFO] [stdout] 3696107c189c74853b34fd19aee85e378100c954190145ecb6c8abd5582ee744