[INFO] fetching crate radiate-engines 1.2.21...
[INFO] testing radiate-engines-1.2.21 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate radiate-engines 1.2.21 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate radiate-engines 1.2.21
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate radiate-engines 1.2.21
[INFO] tweaked toml for crates.io crate radiate-engines 1.2.21 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate radiate-engines 1.2.21 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate radiate-engines 1.2.21 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e06eb706f558f03bae6745d3a270b336a610a261421c3169d17b3bcada427a0f
[INFO] running `Command { std: "docker" "start" "-a" "e06eb706f558f03bae6745d3a270b336a610a261421c3169d17b3bcada427a0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e06eb706f558f03bae6745d3a270b336a610a261421c3169d17b3bcada427a0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e06eb706f558f03bae6745d3a270b336a610a261421c3169d17b3bcada427a0f", kill_on_drop: false }`
[INFO] [stdout] e06eb706f558f03bae6745d3a270b336a610a261421c3169d17b3bcada427a0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2787dd2e51f423680affc7d91b372f9af9fbd31c4763c5e25d5c005ee4e6a873
[INFO] running `Command { std: "docker" "start" "-a" "2787dd2e51f423680affc7d91b372f9af9fbd31c4763c5e25d5c005ee4e6a873", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling rand_core v0.10.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling getrandom v0.4.1
[INFO] [stderr]    Compiling thiserror v2.0.18
[INFO] [stderr]    Compiling cpufeatures v0.3.0
[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling foldhash v0.2.0
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling sharded-slab v0.1.7
[INFO] [stderr]    Compiling thread_local v1.1.9
[INFO] [stderr]    Compiling nu-ansi-term v0.50.1
[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling chacha20 v0.10.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling hashbrown v0.16.1
[INFO] [stderr]    Compiling slotmap v1.1.1
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling castaway v0.2.4
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling rand v0.10.0
[INFO] [stderr]    Compiling matchers v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling radiate-error v1.2.21
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling compact_str v0.9.0
[INFO] [stderr]    Compiling tracing-subscriber v0.3.22
[INFO] [stderr]    Compiling radiate-utils v1.2.21
[INFO] [stderr]    Compiling radiate-core v1.2.21
[INFO] [stderr]    Compiling radiate-selectors v1.2.21
[INFO] [stderr]    Compiling radiate-alters v1.2.21
[INFO] [stderr]    Compiling radiate-engines v1.2.21 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.35s
[INFO] running `Command { std: "docker" "inspect" "2787dd2e51f423680affc7d91b372f9af9fbd31c4763c5e25d5c005ee4e6a873", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2787dd2e51f423680affc7d91b372f9af9fbd31c4763c5e25d5c005ee4e6a873", kill_on_drop: false }`
[INFO] [stdout] 2787dd2e51f423680affc7d91b372f9af9fbd31c4763c5e25d5c005ee4e6a873
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca8e9b73bb9190331278ea302f32cd03a25a3da8068d928833daadc6d886ce2e
[INFO] running `Command { std: "docker" "start" "-a" "ca8e9b73bb9190331278ea302f32cd03a25a3da8068d928833daadc6d886ce2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling radiate-engines v1.2.21 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: cannot find module or crate `serde_json` in this scope
[INFO] [stdout]   --> tests/metrics_tests.rs:53:30
[INFO] [stdout]    |
[INFO] [stdout] 53 |         let loaded_metrics = serde_json::from_str::<MetricSet>(
[INFO] [stdout]    |                              ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `radiate-engines` (test "metrics_tests") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ca8e9b73bb9190331278ea302f32cd03a25a3da8068d928833daadc6d886ce2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca8e9b73bb9190331278ea302f32cd03a25a3da8068d928833daadc6d886ce2e", kill_on_drop: false }`
[INFO] [stdout] ca8e9b73bb9190331278ea302f32cd03a25a3da8068d928833daadc6d886ce2e
