[INFO] fetching crate snap-coin-miner 9.1.0...
[INFO] testing snap-coin-miner-9.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate snap-coin-miner 9.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate snap-coin-miner 9.1.0
[INFO] finished tweaking crates.io crate snap-coin-miner 9.1.0
[INFO] tweaked toml for crates.io crate snap-coin-miner 9.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate snap-coin-miner 9.1.0 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 snap-coin-miner 9.1.0 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9853e4e691a9fa7f39486f988fa6144ad0581a80ac91b191a13630562934ef11
[INFO] running `Command { std: "docker" "start" "-a" "9853e4e691a9fa7f39486f988fa6144ad0581a80ac91b191a13630562934ef11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9853e4e691a9fa7f39486f988fa6144ad0581a80ac91b191a13630562934ef11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9853e4e691a9fa7f39486f988fa6144ad0581a80ac91b191a13630562934ef11", kill_on_drop: false }`
[INFO] [stdout] 9853e4e691a9fa7f39486f988fa6144ad0581a80ac91b191a13630562934ef11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7f53ef76092c994b807aba49955091d799c5c3d72a177231bd6060c1bab81d22
[INFO] running `Command { std: "docker" "start" "-a" "7f53ef76092c994b807aba49955091d799c5c3d72a177231bd6060c1bab81d22", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.22
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling crunchy v0.2.4
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[INFO] [stderr]    Compiling serde v1.0.228
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[INFO] [stderr]    Compiling parking_lot_core v0.8.6
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[INFO] [stderr]    Compiling unicode-truncate v2.0.1
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[INFO] [stderr]    Compiling yaml-rust2 v0.10.4
[INFO] [stderr]    Compiling sled v0.34.7
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[INFO] [stderr]    Compiling get_if_addrs v0.5.3
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[INFO] [stderr]    Compiling convert_case v0.6.0
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[INFO] [stderr]    Compiling bitflags v2.10.0
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[INFO] [stderr]    Compiling serde_spanned v1.0.3
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[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling toml v0.9.8
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling darling_core v0.23.0
[INFO] [stderr]    Compiling pest_generator v2.8.4
[INFO] [stderr]    Compiling serde-untagged v0.1.9
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[INFO] [stderr]    Compiling strum_macros v0.27.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
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[INFO] [stderr]    Compiling derive_more-impl v2.1.1
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[INFO] [stderr]    Compiling pest_derive v2.8.4
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling tokio-macros v2.6.0
[INFO] [stderr]    Compiling futures-util v0.3.31
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[INFO] [stderr]    Compiling derive_more v2.1.1
[INFO] [stderr]    Compiling crossterm v0.29.0
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling thiserror v2.0.17
[INFO] [stderr]    Compiling kasuari v0.4.11
[INFO] [stderr]    Compiling flexi_logger v0.31.7
[INFO] [stderr]    Compiling darling_macro v0.23.0
[INFO] [stderr]    Compiling strum v0.27.2
[INFO] [stderr]    Compiling ed25519-dalek v2.2.0
[INFO] [stderr]    Compiling ratatui-core v0.1.0
[INFO] [stderr]    Compiling darling v0.23.0
[INFO] [stderr]    Compiling ratatui-widgets v0.3.0
[INFO] [stderr]    Compiling ratatui-crossterm v0.1.0
[INFO] [stderr]    Compiling ratatui-macros v0.7.0
[INFO] [stderr]    Compiling json5 v0.4.1
[INFO] [stderr]    Compiling ron v0.12.0
[INFO] [stderr]    Compiling ratatui v0.30.0
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling config v0.15.19
[INFO] [stderr]    Compiling snap-coin v13.1.1
[INFO] [stderr]    Compiling snap-coin-miner v9.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `Command { std: "docker" "inspect" "7f53ef76092c994b807aba49955091d799c5c3d72a177231bd6060c1bab81d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f53ef76092c994b807aba49955091d799c5c3d72a177231bd6060c1bab81d22", kill_on_drop: false }`
[INFO] [stdout] 7f53ef76092c994b807aba49955091d799c5c3d72a177231bd6060c1bab81d22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4c9e1af35c443603f280be3070da56e14c15dca10fbb412f4ce63cddfae4ced1
[INFO] running `Command { std: "docker" "start" "-a" "4c9e1af35c443603f280be3070da56e14c15dca10fbb412f4ce63cddfae4ced1", kill_on_drop: false }`
[INFO] [stderr]    Compiling snap-coin-miner v9.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `Command { std: "docker" "inspect" "4c9e1af35c443603f280be3070da56e14c15dca10fbb412f4ce63cddfae4ced1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c9e1af35c443603f280be3070da56e14c15dca10fbb412f4ce63cddfae4ced1", kill_on_drop: false }`
[INFO] [stdout] 4c9e1af35c443603f280be3070da56e14c15dca10fbb412f4ce63cddfae4ced1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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", kill_on_drop: false }`
[INFO] [stdout] 4a0e72a5f615f2f54a5ae0b14e85d06ca28366cd14fe3a899766c2bb35b47a70
[INFO] running `Command { std: "docker" "start" "-a" "4a0e72a5f615f2f54a5ae0b14e85d06ca28366cd14fe3a899766c2bb35b47a70", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/snap_coin_miner-2eed8b006a6fb49a)
[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" "4a0e72a5f615f2f54a5ae0b14e85d06ca28366cd14fe3a899766c2bb35b47a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a0e72a5f615f2f54a5ae0b14e85d06ca28366cd14fe3a899766c2bb35b47a70", kill_on_drop: false }`
[INFO] [stdout] 4a0e72a5f615f2f54a5ae0b14e85d06ca28366cd14fe3a899766c2bb35b47a70