[INFO] fetching crate diff 0.1.13... [INFO] checking diff-0.1.13 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] extracting crate diff 0.1.13 into /workspace/builds/worker-5-tc2/source [INFO] validating manifest of crates.io crate diff 0.1.13 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 crates.io crate diff 0.1.13 [INFO] finished tweaking crates.io crate diff 0.1.13 [INFO] tweaked toml for crates.io crate diff 0.1.13 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate crates.io crate diff 0.1.13 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b284ae71f9aa75f247044ffd8f42b6927251f74b601c501113f1292187d296df [INFO] running `Command { std: "docker" "start" "-a" "b284ae71f9aa75f247044ffd8f42b6927251f74b601c501113f1292187d296df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b284ae71f9aa75f247044ffd8f42b6927251f74b601c501113f1292187d296df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b284ae71f9aa75f247044ffd8f42b6927251f74b601c501113f1292187d296df", kill_on_drop: false }` [INFO] [stdout] b284ae71f9aa75f247044ffd8f42b6927251f74b601c501113f1292187d296df [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] dac13502b2fba00d98eb8155568faa96a2ad034d186c171860f82dbe4462ca44 [INFO] running `Command { std: "docker" "start" "-a" "dac13502b2fba00d98eb8155568faa96a2ad034d186c171860f82dbe4462ca44", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling semver v1.0.10 [INFO] [stderr] Compiling crossbeam-utils v0.8.10 [INFO] [stderr] Compiling serde v1.0.137 [INFO] [stderr] Checking once_cell v1.12.0 [INFO] [stderr] Compiling crossbeam-epoch v0.9.9 [INFO] [stderr] Compiling proc-macro2 v1.0.40 [INFO] [stderr] Compiling unicode-ident v1.0.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling quote v1.0.20 [INFO] [stderr] Compiling rayon-core v1.9.3 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Checking regex-syntax v0.6.26 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Checking ryu v1.0.10 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling rayon v1.5.3 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking itoa v1.0.2 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Compiling serde_derive v1.0.137 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking diff v0.1.13 (/opt/rustwide/workdir) [INFO] [stderr] Compiling rustc_version v0.4.0 [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/lib.rs:99:40 [INFO] [stdout] | [INFO] [stdout] 99 | .map(|(l, r)| Result::Both(mapper(l), mapper(r))), [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/lib.rs:99:51 [INFO] [stdout] | [INFO] [stdout] 99 | .map(|(l, r)| Result::Both(mapper(l), mapper(r))), [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:131:40 [INFO] [stdout] | [INFO] [stdout] 131 | .map(|(l, r)| Result::Both(mapper(l), mapper(r))), [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/lib.rs:131:51 [INFO] [stdout] | [INFO] [stdout] 131 | .map(|(l, r)| Result::Both(mapper(l), mapper(r))), [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 4 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `diff` (lib) due to 5 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "dac13502b2fba00d98eb8155568faa96a2ad034d186c171860f82dbe4462ca44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dac13502b2fba00d98eb8155568faa96a2ad034d186c171860f82dbe4462ca44", kill_on_drop: false }` [INFO] [stdout] dac13502b2fba00d98eb8155568faa96a2ad034d186c171860f82dbe4462ca44