[INFO] fetching crate rustytime 0.1.3... [INFO] checking rustytime-0.1.3 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] extracting crate rustytime 0.1.3 into /workspace/builds/worker-6-tc2/source [INFO] validating manifest of crates.io crate rustytime 0.1.3 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate rustytime 0.1.3 [INFO] finished tweaking crates.io crate rustytime 0.1.3 [INFO] tweaked toml for crates.io crate rustytime 0.1.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate crates.io crate rustytime 0.1.3 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 446259779e40e36f032eed97241ce5cd578326def8cb7e5912bf325fe812d932 [INFO] running `Command { std: "docker" "start" "-a" "446259779e40e36f032eed97241ce5cd578326def8cb7e5912bf325fe812d932", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "446259779e40e36f032eed97241ce5cd578326def8cb7e5912bf325fe812d932", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "446259779e40e36f032eed97241ce5cd578326def8cb7e5912bf325fe812d932", kill_on_drop: false }` [INFO] [stdout] 446259779e40e36f032eed97241ce5cd578326def8cb7e5912bf325fe812d932 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d49653f09a7d226a13167af207973df4a86e961066ccf19c55209ee2db01e6ee [INFO] running `Command { std: "docker" "start" "-a" "d49653f09a7d226a13167af207973df4a86e961066ccf19c55209ee2db01e6ee", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.196 [INFO] [stderr] Compiling once_cell v1.19.0 [INFO] [stderr] Compiling thiserror v1.0.57 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling ucd-trie v0.1.6 [INFO] [stderr] Checking memchr v2.7.1 [INFO] [stderr] Checking hashbrown v0.14.3 [INFO] [stderr] Checking itoa v1.0.10 [INFO] [stderr] Compiling syn v2.0.48 [INFO] [stderr] Checking ryu v1.0.16 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Checking anstyle v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.113 [INFO] [stderr] Checking hashbrown v0.13.2 [INFO] [stderr] Compiling async-trait v0.1.77 [INFO] [stderr] Checking winnow v0.6.1 [INFO] [stderr] Checking anstream v0.6.11 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking unicode-segmentation v1.11.0 [INFO] [stderr] Compiling generic-array v0.14.7 [INFO] [stderr] Checking clap_lex v0.6.0 [INFO] [stderr] Checking linked-hash-map v0.5.6 [INFO] [stderr] Checking unsafe-libyaml v0.2.10 [INFO] [stderr] Checking opaque-debug v0.3.0 [INFO] [stderr] Checking clap_builder v4.4.18 [INFO] [stderr] Checking pathdiff v0.2.1 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Checking nom v7.1.3 [INFO] [stderr] Checking cpufeatures v0.2.12 [INFO] [stderr] Checking convert_case v0.6.0 [INFO] [stderr] Checking indexmap v2.2.3 [INFO] [stderr] Checking iana-time-zone v0.1.60 [INFO] [stderr] Checking shellexpand v3.1.0 [INFO] [stderr] Checking glob v0.3.1 [INFO] [stderr] Checking log v0.4.20 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking block-buffer v0.9.0 [INFO] [stderr] Checking digest v0.9.0 [INFO] [stderr] Checking sha2 v0.9.9 [INFO] [stderr] Compiling getrandom v0.2.12 [INFO] [stderr] Compiling const-random-macro v0.1.16 [INFO] [stderr] Checking const-random v0.1.17 [INFO] [stderr] Checking dlv-list v0.5.2 [INFO] [stderr] Checking ordered-multimap v0.6.0 [INFO] [stderr] Checking rust-ini v0.19.0 [INFO] [stderr] Compiling serde_derive v1.0.196 [INFO] [stderr] Compiling thiserror-impl v1.0.57 [INFO] [stderr] Compiling clap_derive v4.4.7 [INFO] [stderr] Compiling pest v2.7.7 [INFO] [stderr] Checking clap v4.4.18 [INFO] [stderr] Compiling pest_meta v2.7.7 [INFO] [stderr] Compiling pest_generator v2.7.7 [INFO] [stderr] Compiling pest_derive v2.7.7 [INFO] [stderr] Checking serde_spanned v0.6.5 [INFO] [stderr] Checking toml_datetime v0.6.5 [INFO] [stderr] Checking bitflags v2.4.2 [INFO] [stderr] Checking json5 v0.4.1 [INFO] [stderr] Checking serde_yaml v0.9.31 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Checking chrono v0.4.33 [INFO] [stderr] Checking ron v0.8.1 [INFO] [stderr] Checking toml_edit v0.22.5 [INFO] [stderr] Checking toml v0.8.10 [INFO] [stderr] Checking config v0.14.0 [INFO] [stderr] Checking rustytime v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] error: this value of type `Result<(), serde_json::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/rtime.rs:169:21 [INFO] [stdout] | [INFO] [stdout] 163 | let file = OpenOptions::new() [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 169 | if let Err(e) = serde_json::to_writer(&file, &xs) { [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: this value of type `Result<(), serde_json::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/rtime.rs:169:21 [INFO] [stdout] | [INFO] [stdout] 163 | let file = OpenOptions::new() [INFO] [stdout] | ---- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 169 | if let Err(e) = serde_json::to_writer(&file, &xs) { [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: field `tags` is never read [INFO] [stdout] --> src/rtime.rs:63:5 [INFO] [stdout] | [INFO] [stdout] 62 | pub struct RTime { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 63 | tags: Vec, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RTime` 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: field `tags` is never read [INFO] [stdout] --> src/rtime.rs:63:5 [INFO] [stdout] | [INFO] [stdout] 62 | pub struct RTime { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 63 | tags: Vec, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `RTime` 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] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rustytime` (bin "rt" test) due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `rustytime` (bin "rt") due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "d49653f09a7d226a13167af207973df4a86e961066ccf19c55209ee2db01e6ee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d49653f09a7d226a13167af207973df4a86e961066ccf19c55209ee2db01e6ee", kill_on_drop: false }` [INFO] [stdout] d49653f09a7d226a13167af207973df4a86e961066ccf19c55209ee2db01e6ee