[INFO] cloning repository https://github.com/hjiayz/quickjs_regex [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hjiayz/quickjs_regex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjiayz%2Fquickjs_regex", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjiayz%2Fquickjs_regex'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0d1f715aebc69b70bfc3f9a6509415891bb94175 [INFO] checking hjiayz/quickjs_regex against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjiayz%2Fquickjs_regex" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hjiayz/quickjs_regex on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hjiayz/quickjs_regex [INFO] finished tweaking git repo https://github.com/hjiayz/quickjs_regex [INFO] tweaked toml for git repo https://github.com/hjiayz/quickjs_regex written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/hjiayz/quickjs_regex 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded cast v0.2.7 [INFO] [stderr] Downloaded plotters-svg v0.3.1 [INFO] [stderr] Downloaded plotters-backend v0.3.2 [INFO] [stderr] Downloaded criterion-plot v0.4.4 [INFO] [stderr] Downloaded criterion v0.3.5 [INFO] [stderr] Downloaded plotters v0.3.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a3e426f93863c8d2ce0c111ba3466f025280228b98c0a032ccc4726b5e8fa86d [INFO] running `Command { std: "docker" "start" "-a" "a3e426f93863c8d2ce0c111ba3466f025280228b98c0a032ccc4726b5e8fa86d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a3e426f93863c8d2ce0c111ba3466f025280228b98c0a032ccc4726b5e8fa86d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3e426f93863c8d2ce0c111ba3466f025280228b98c0a032ccc4726b5e8fa86d", kill_on_drop: false }` [INFO] [stdout] a3e426f93863c8d2ce0c111ba3466f025280228b98c0a032ccc4726b5e8fa86d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 873e32305c18752ef0ae6bae3922e4a5428060299108bd6f9fd123928c06dd79 [INFO] running `Command { std: "docker" "start" "-a" "873e32305c18752ef0ae6bae3922e4a5428060299108bd6f9fd123928c06dd79", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.103 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling semver v1.0.4 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling serde_json v1.0.69 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking unicode-xid v0.2.2 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking proc-macro2 v1.0.32 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking quote v1.0.10 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Compiling jobserver v0.1.24 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Compiling cc v1.0.70 [INFO] [stderr] Checking criterion-plot v0.4.4 [INFO] [stderr] Compiling quickjs_regex_backend v0.1.0 (/opt/rustwide/workdir/quickjs_regex_backend) [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking toml v0.5.8 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Compiling thiserror-impl v1.0.30 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Compiling thiserror v1.0.30 [INFO] [stderr] Checking proc-macro-crate v1.1.0 [INFO] [stderr] Checking quickjs_regex_derive v0.1.2 (/opt/rustwide/workdir/quickjs_regex_derive) [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> quickjs_regex_derive/src/lib.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `param.chars()` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 21 | if let Some(ch) = param.chars().next() { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> quickjs_regex_derive/src/lib.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `param.chars()` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 21 | if let Some(ch) = param.chars().next() { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> quickjs_regex_derive/src/lib.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `param.chars()` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 21 | if let Some(ch) = param.chars().next() { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking quickjs_regex v0.2.3 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion v0.3.5 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.33s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "873e32305c18752ef0ae6bae3922e4a5428060299108bd6f9fd123928c06dd79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "873e32305c18752ef0ae6bae3922e4a5428060299108bd6f9fd123928c06dd79", kill_on_drop: false }` [INFO] [stdout] 873e32305c18752ef0ae6bae3922e4a5428060299108bd6f9fd123928c06dd79 [INFO] checking hjiayz/quickjs_regex against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjiayz%2Fquickjs_regex" "/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/hjiayz/quickjs_regex on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hjiayz/quickjs_regex [INFO] finished tweaking git repo https://github.com/hjiayz/quickjs_regex [INFO] tweaked toml for git repo https://github.com/hjiayz/quickjs_regex written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/hjiayz/quickjs_regex 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5aebada9a4513168c6d73ccaf3084c0e9d650e3af87cfc280c0befad64da5e81 [INFO] running `Command { std: "docker" "start" "-a" "5aebada9a4513168c6d73ccaf3084c0e9d650e3af87cfc280c0befad64da5e81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5aebada9a4513168c6d73ccaf3084c0e9d650e3af87cfc280c0befad64da5e81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5aebada9a4513168c6d73ccaf3084c0e9d650e3af87cfc280c0befad64da5e81", kill_on_drop: false }` [INFO] [stdout] 5aebada9a4513168c6d73ccaf3084c0e9d650e3af87cfc280c0befad64da5e81 [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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 04b98aec51e6d6333d41e53f189b1e934525e314a49eb3eb6283b0ec5a1a4695 [INFO] running `Command { std: "docker" "start" "-a" "04b98aec51e6d6333d41e53f189b1e934525e314a49eb3eb6283b0ec5a1a4695", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.103 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling crossbeam-utils v0.8.5 [INFO] [stderr] Compiling semver v1.0.4 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling serde_json v1.0.69 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking unicode-xid v0.2.2 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking proc-macro2 v1.0.32 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Checking quote v1.0.10 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Compiling jobserver v0.1.24 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Compiling cc v1.0.70 [INFO] [stderr] Checking criterion-plot v0.4.4 [INFO] [stderr] Compiling quickjs_regex_backend v0.1.0 (/opt/rustwide/workdir/quickjs_regex_backend) [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking toml v0.5.8 [INFO] [stderr] Compiling thiserror-impl v1.0.30 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Compiling thiserror v1.0.30 [INFO] [stderr] Checking proc-macro-crate v1.1.0 [INFO] [stderr] Checking quickjs_regex_derive v0.1.2 (/opt/rustwide/workdir/quickjs_regex_derive) [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> quickjs_regex_derive/src/lib.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `param.chars()` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 21 | if let Some(ch) = param.chars().next() { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> quickjs_regex_derive/src/lib.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `param.chars()` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 21 | if let Some(ch) = param.chars().next() { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> quickjs_regex_derive/src/lib.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().next() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `param.chars()` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 21 | for ch in param.chars().by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 21 | if let Some(ch) = param.chars().next() { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking quickjs_regex v0.2.3 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion v0.3.5 [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] --> benches/benchmark.rs:24:19 [INFO] [stdout] | [INFO] [stdout] 24 | b.iter(|| Regex::new(r"^bc(d|e)*$").unwrap().is_match(black_box(TEXT))) [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `quickjs_regex` (bench "benchmark") due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "04b98aec51e6d6333d41e53f189b1e934525e314a49eb3eb6283b0ec5a1a4695", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "04b98aec51e6d6333d41e53f189b1e934525e314a49eb3eb6283b0ec5a1a4695", kill_on_drop: false }` [INFO] [stdout] 04b98aec51e6d6333d41e53f189b1e934525e314a49eb3eb6283b0ec5a1a4695