[INFO] cloning repository https://github.com/data-pup/cargo-metadata-exercise [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/data-pup/cargo-metadata-exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdata-pup%2Fcargo-metadata-exercise", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdata-pup%2Fcargo-metadata-exercise'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 756fc3afe4e803d5bfd37de7d60ba1d616657ede [INFO] checking data-pup/cargo-metadata-exercise/756fc3afe4e803d5bfd37de7d60ba1d616657ede 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%2Fdata-pup%2Fcargo-metadata-exercise" "/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/data-pup/cargo-metadata-exercise 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/data-pup/cargo-metadata-exercise [INFO] finished tweaking git repo https://github.com/data-pup/cargo-metadata-exercise [INFO] tweaked toml for git repo https://github.com/data-pup/cargo-metadata-exercise written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/data-pup/cargo-metadata-exercise 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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [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] e20f45e2b0f1a71365cc0acffc5554a9a3ec222b96043ffdc4e0779d7ef4626f [INFO] running `Command { std: "docker" "start" "-a" "e20f45e2b0f1a71365cc0acffc5554a9a3ec222b96043ffdc4e0779d7ef4626f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e20f45e2b0f1a71365cc0acffc5554a9a3ec222b96043ffdc4e0779d7ef4626f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e20f45e2b0f1a71365cc0acffc5554a9a3ec222b96043ffdc4e0779d7ef4626f", kill_on_drop: false }` [INFO] [stdout] e20f45e2b0f1a71365cc0acffc5554a9a3ec222b96043ffdc4e0779d7ef4626f [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] 06ee2948fc2e1a4b5698c864eec1654b2d8f58e579a94e1fc8170c8536192f29 [INFO] running `Command { std: "docker" "start" "-a" "06ee2948fc2e1a4b5698c864eec1654b2d8f58e579a94e1fc8170c8536192f29", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling serde v1.0.76 [INFO] [stderr] Compiling cc v1.0.23 [INFO] [stderr] Compiling proc-macro2 v0.4.17 [INFO] [stderr] Checking libc v0.2.43 [INFO] [stderr] Compiling ryu v0.2.6 [INFO] [stderr] Checking rustc-demangle v0.1.9 [INFO] [stderr] Checking cfg-if v0.1.5 [INFO] [stderr] Checking itoa v0.4.2 [INFO] [stderr] Compiling backtrace-sys v0.1.24 [INFO] [stderr] Compiling quote v0.6.8 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Checking backtrace v0.3.9 [INFO] [stderr] Checking error-chain v0.12.0 [INFO] [stderr] Compiling serde_derive v1.0.76 [INFO] [stderr] Checking serde_json v1.0.26 [INFO] [stderr] Checking semver v0.9.0 [INFO] [stderr] Checking toml v0.4.6 [INFO] [stderr] Checking cargo_metadata v0.6.0 [INFO] [stderr] Checking cargo-metadata-ex v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `package` is never read [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 13 | struct _CargoLockfile { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] 14 | package: Vec<_CargoLockfileDependency>, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `_CargoLockfile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name`, `version`, `source`, and `dependencies` are never read [INFO] [stdout] --> src/main.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 19 | struct _CargoLockfileDependency { [INFO] [stdout] | ------------------------ fields in this struct [INFO] [stdout] 20 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 21 | version: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 22 | source: Option, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 23 | dependencies: Option> [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `_CargoLockfileDependency` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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/main.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 44 | let mut cargo_file = File::open(path).unwrap(); [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 48 | toml::from_str(&cargo_contents).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: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `cargo-metadata-ex` (bin "cargo-metadata-ex" test) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `package` is never read [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 13 | struct _CargoLockfile { [INFO] [stdout] | -------------- field in this struct [INFO] [stdout] 14 | package: Vec<_CargoLockfileDependency>, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `_CargoLockfile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name`, `version`, `source`, and `dependencies` are never read [INFO] [stdout] --> src/main.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 19 | struct _CargoLockfileDependency { [INFO] [stdout] | ------------------------ fields in this struct [INFO] [stdout] 20 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 21 | version: String, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 22 | source: Option, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 23 | dependencies: Option> [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `_CargoLockfileDependency` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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/main.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 44 | let mut cargo_file = File::open(path).unwrap(); [INFO] [stdout] | ---------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 48 | toml::from_str(&cargo_contents).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: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `cargo-metadata-ex` (bin "cargo-metadata-ex") due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "06ee2948fc2e1a4b5698c864eec1654b2d8f58e579a94e1fc8170c8536192f29", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "06ee2948fc2e1a4b5698c864eec1654b2d8f58e579a94e1fc8170c8536192f29", kill_on_drop: false }` [INFO] [stdout] 06ee2948fc2e1a4b5698c864eec1654b2d8f58e579a94e1fc8170c8536192f29