[INFO] fetching crate regula-core 0.1.0...
[INFO] testing regula-core-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate regula-core 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate regula-core 0.1.0
[INFO] finished tweaking crates.io crate regula-core 0.1.0
[INFO] tweaked toml for crates.io crate regula-core 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate regula-core 0.1.0 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 regula-core 0.1.0 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 6d05a3a173ac533f3c18bbb1b56104724b63d4ccea71335e5160f43f6db93296
[INFO] running `Command { std: "docker" "start" "-a" "6d05a3a173ac533f3c18bbb1b56104724b63d4ccea71335e5160f43f6db93296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d05a3a173ac533f3c18bbb1b56104724b63d4ccea71335e5160f43f6db93296", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d05a3a173ac533f3c18bbb1b56104724b63d4ccea71335e5160f43f6db93296", kill_on_drop: false }`
[INFO] [stdout] 6d05a3a173ac533f3c18bbb1b56104724b63d4ccea71335e5160f43f6db93296
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 5df60566d1467bc590fb25a03de700f78675269c3b872d4d3bc3a425ad2a5c51
[INFO] running `Command { std: "docker" "start" "-a" "5df60566d1467bc590fb25a03de700f78675269c3b872d4d3bc3a425ad2a5c51", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.104
[INFO] [stderr]    Compiling libc v0.2.179
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling zmij v1.0.11
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling indexmap v2.12.1
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling serde_json v1.0.148
[INFO] [stderr]    Compiling syn v2.0.113
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling socket2 v0.6.1
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling uuid v1.19.0
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling tokio v1.49.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling regula-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NumericReducer` is never constructed
[INFO] [stdout]    --> src/channel/reducer.rs:204:12
[INFO] [stdout]     |
[INFO] [stdout] 204 | pub struct NumericReducer<V> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/channel/reducer.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 210 | impl<V> NumericReducer<V> {
[INFO] [stdout]     | ------------------------- associated function in this implementation
[INFO] [stdout] 211 |     /// Create a new numeric reducer with the Add reducer type.
[INFO] [stdout] 212 |     pub fn new(initial: Option<V>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.48s
[INFO] running `Command { std: "docker" "inspect" "5df60566d1467bc590fb25a03de700f78675269c3b872d4d3bc3a425ad2a5c51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5df60566d1467bc590fb25a03de700f78675269c3b872d4d3bc3a425ad2a5c51", kill_on_drop: false }`
[INFO] [stdout] 5df60566d1467bc590fb25a03de700f78675269c3b872d4d3bc3a425ad2a5c51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f8b35b0f61c4a9502a9af66b16fb90892399af0ed584048ed5c65cf272c7c5d4
[INFO] running `Command { std: "docker" "start" "-a" "f8b35b0f61c4a9502a9af66b16fb90892399af0ed584048ed5c65cf272c7c5d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling regula-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `NumericReducer` is never constructed
[INFO] [stdout]    --> src/channel/reducer.rs:204:12
[INFO] [stdout]     |
[INFO] [stdout] 204 | pub struct NumericReducer<V> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/channel/reducer.rs:212:12
[INFO] [stdout]     |
[INFO] [stdout] 210 | impl<V> NumericReducer<V> {
[INFO] [stdout]     | ------------------------- associated function in this implementation
[INFO] [stdout] 211 |     /// Create a new numeric reducer with the Add reducer type.
[INFO] [stdout] 212 |     pub fn new(initial: Option<V>) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `RouteOutput` in this scope
[INFO] [stdout]    --> src/graph.rs:619:17
[INFO] [stdout]     |
[INFO] [stdout] 619 |                 RouteOutput::end()
[INFO] [stdout]     |                 ^^^^^^^^^^^ use of undeclared type `RouteOutput`
[INFO] [stdout]     |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 619 -                 RouteOutput::end()
[INFO] [stdout] 619 +                 NodeOutput::end()
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this enum through its public re-export
[INFO] [stdout]     |
[INFO] [stdout] 528 +     use crate::RouteOutput;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `RouteOutput` in this scope
[INFO] [stdout]    --> src/graph.rs:621:17
[INFO] [stdout]     |
[INFO] [stdout] 621 |                 RouteOutput::one("agent")
[INFO] [stdout]     |                 ^^^^^^^^^^^ use of undeclared type `RouteOutput`
[INFO] [stdout]     |
[INFO] [stdout] help: an enum with a similar name exists
[INFO] [stdout]     |
[INFO] [stdout] 621 -                 RouteOutput::one("agent")
[INFO] [stdout] 621 +                 NodeOutput::one("agent")
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this enum through its public re-export
[INFO] [stdout]     |
[INFO] [stdout] 528 +     use crate::RouteOutput;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/channel/last_value.rs:203:13
[INFO] [stdout]     |
[INFO] [stdout] 203 |         let mut channel = LastValue::with_value("test".to_string());
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `regula-core` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f8b35b0f61c4a9502a9af66b16fb90892399af0ed584048ed5c65cf272c7c5d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8b35b0f61c4a9502a9af66b16fb90892399af0ed584048ed5c65cf272c7c5d4", kill_on_drop: false }`
[INFO] [stdout] f8b35b0f61c4a9502a9af66b16fb90892399af0ed584048ed5c65cf272c7c5d4
