[INFO] fetching crate quickjs_regex_derive 0.1.2...
[INFO] testing quickjs_regex_derive-0.1.2 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate quickjs_regex_derive 0.1.2 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate quickjs_regex_derive 0.1.2
[INFO] finished tweaking crates.io crate quickjs_regex_derive 0.1.2
[INFO] tweaked toml for crates.io crate quickjs_regex_derive 0.1.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate quickjs_regex_derive 0.1.2 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 24 packages to latest compatible versions
[INFO] [stderr]       Adding proc-macro-crate v1.3.1 (available: v3.5.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.117)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quickjs_regex_backend v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a35489ba51d75fb23c25bb4fc08b3819ab27e28f6c4f37a66d953489d08a9d48
[INFO] running `Command { std: "docker" "start" "-a" "a35489ba51d75fb23c25bb4fc08b3819ab27e28f6c4f37a66d953489d08a9d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a35489ba51d75fb23c25bb4fc08b3819ab27e28f6c4f37a66d953489d08a9d48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a35489ba51d75fb23c25bb4fc08b3819ab27e28f6c4f37a66d953489d08a9d48", kill_on_drop: false }`
[INFO] [stdout] a35489ba51d75fb23c25bb4fc08b3819ab27e28f6c4f37a66d953489d08a9d48
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcd29dca9ad4f24c4f5933f2d7682e39edad07aca4e15ef5a5e0bfd1e89447d4
[INFO] running `Command { std: "docker" "start" "-a" "bcd29dca9ad4f24c4f5933f2d7682e39edad07aca4e15ef5a5e0bfd1e89447d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]    Compiling equivalent v1.0.2
[INFO] [stderr]    Compiling hashbrown v0.17.0
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling indexmap v2.14.0
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling cc v1.2.60
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling quickjs_regex_backend v0.1.0
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling quickjs_regex_derive v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> 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().next() {
[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 -     for ch in param.chars().next() {
[INFO] [stdout] 21 +     if let Some(ch) = param.chars().next() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.99s
[INFO] running `Command { std: "docker" "inspect" "bcd29dca9ad4f24c4f5933f2d7682e39edad07aca4e15ef5a5e0bfd1e89447d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcd29dca9ad4f24c4f5933f2d7682e39edad07aca4e15ef5a5e0bfd1e89447d4", kill_on_drop: false }`
[INFO] [stdout] bcd29dca9ad4f24c4f5933f2d7682e39edad07aca4e15ef5a5e0bfd1e89447d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d83b3fdf2afe7e4a14468d5f0e6dc93a3c7e456def94f39c4fadc54e97ba7eea
[INFO] running `Command { std: "docker" "start" "-a" "d83b3fdf2afe7e4a14468d5f0e6dc93a3c7e456def94f39c4fadc54e97ba7eea", kill_on_drop: false }`
[INFO] [stderr]    Compiling quickjs_regex_derive v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> 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().next() {
[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 -     for ch in param.chars().next() {
[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]   --> 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().next() {
[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 -     for ch in param.chars().next() {
[INFO] [stdout] 21 +     if let Some(ch) = param.chars().next() {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "d83b3fdf2afe7e4a14468d5f0e6dc93a3c7e456def94f39c4fadc54e97ba7eea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d83b3fdf2afe7e4a14468d5f0e6dc93a3c7e456def94f39c4fadc54e97ba7eea", kill_on_drop: false }`
[INFO] [stdout] d83b3fdf2afe7e4a14468d5f0e6dc93a3c7e456def94f39c4fadc54e97ba7eea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b3e62fd29e7e51b464e9d9d74a27d255b9c5ef7c3e9b25244ff03548bf404414
[INFO] running `Command { std: "docker" "start" "-a" "b3e62fd29e7e51b464e9d9d74a27d255b9c5ef7c3e9b25244ff03548bf404414", kill_on_drop: false }`
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]   --> src/lib.rs:21:15
[INFO] [stderr]    |
[INFO] [stderr] 21 |     for ch in param.chars().next() {
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stderr] help: to iterate over `param.chars()` remove the call to `next`
[INFO] [stderr]    |
[INFO] [stderr] 21 -     for ch in param.chars().next() {
[INFO] [stderr] 21 +     for ch in param.chars().by_ref() {
[INFO] [stderr]    |
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]    |
[INFO] [stderr] 21 -     for ch in param.chars().next() {
[INFO] [stderr] 21 +     if let Some(ch) = param.chars().next() {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `quickjs_regex_derive` (lib) generated 1 warning
[INFO] [stderr] warning: `quickjs_regex_derive` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/quickjs_regex_derive-db27498d62e63f83)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests quickjs_regex_derive
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b3e62fd29e7e51b464e9d9d74a27d255b9c5ef7c3e9b25244ff03548bf404414", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3e62fd29e7e51b464e9d9d74a27d255b9c5ef7c3e9b25244ff03548bf404414", kill_on_drop: false }`
[INFO] [stdout] b3e62fd29e7e51b464e9d9d74a27d255b9c5ef7c3e9b25244ff03548bf404414