[INFO] fetching crate pow-captcha-core 0.2.2...
[INFO] testing pow-captcha-core-0.2.2 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate pow-captcha-core 0.2.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate pow-captcha-core 0.2.2
[INFO] finished tweaking crates.io crate pow-captcha-core 0.2.2
[INFO] tweaked toml for crates.io crate pow-captcha-core 0.2.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pow-captcha-core 0.2.2 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pow-captcha-core 0.2.2 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc7969fd502a13f26240a3d06b0ef47d3f40bd3e40b71aed36a6ca6b904fafcb
[INFO] running `Command { std: "docker" "start" "-a" "cc7969fd502a13f26240a3d06b0ef47d3f40bd3e40b71aed36a6ca6b904fafcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc7969fd502a13f26240a3d06b0ef47d3f40bd3e40b71aed36a6ca6b904fafcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc7969fd502a13f26240a3d06b0ef47d3f40bd3e40b71aed36a6ca6b904fafcb", kill_on_drop: false }`
[INFO] [stdout] cc7969fd502a13f26240a3d06b0ef47d3f40bd3e40b71aed36a6ca6b904fafcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6aa05d1cbfecf0d2a3078e8e53b6b993449850e7015f6ecd8c67c6b29e6faed6
[INFO] running `Command { std: "docker" "start" "-a" "6aa05d1cbfecf0d2a3078e8e53b6b993449850e7015f6ecd8c67c6b29e6faed6", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling cpufeatures v0.2.17
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling pow-captcha-core v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.21s
[INFO] running `Command { std: "docker" "inspect" "6aa05d1cbfecf0d2a3078e8e53b6b993449850e7015f6ecd8c67c6b29e6faed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aa05d1cbfecf0d2a3078e8e53b6b993449850e7015f6ecd8c67c6b29e6faed6", kill_on_drop: false }`
[INFO] [stdout] 6aa05d1cbfecf0d2a3078e8e53b6b993449850e7015f6ecd8c67c6b29e6faed6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9459ea3febbcf5d537f3e3ab8cca01c7737c7e951bb7325296a684266a789dc5
[INFO] running `Command { std: "docker" "start" "-a" "9459ea3febbcf5d537f3e3ab8cca01c7737c7e951bb7325296a684266a789dc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling pow-captcha-core v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "9459ea3febbcf5d537f3e3ab8cca01c7737c7e951bb7325296a684266a789dc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9459ea3febbcf5d537f3e3ab8cca01c7737c7e951bb7325296a684266a789dc5", kill_on_drop: false }`
[INFO] [stdout] 9459ea3febbcf5d537f3e3ab8cca01c7737c7e951bb7325296a684266a789dc5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0a19577240fc796297ad50c9c39523d8a62293ef536188df8af56a03853b075f
[INFO] running `Command { std: "docker" "start" "-a" "0a19577240fc796297ad50c9c39523d8a62293ef536188df8af56a03853b075f", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/pow_captcha_core-2da94986c0bd8c26)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::it_rejects_an_incorrect_solution ... ok
[INFO] [stdout] test tests::it_generates_challenge ... ok
[INFO] [stdout] test tests::it_uses_default_difficulty ... ok
[INFO] [stderr]    Doc-tests pow_captcha_core
[INFO] [stdout] test tests::it_verifies_a_correct_solution ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[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" "0a19577240fc796297ad50c9c39523d8a62293ef536188df8af56a03853b075f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a19577240fc796297ad50c9c39523d8a62293ef536188df8af56a03853b075f", kill_on_drop: false }`
[INFO] [stdout] 0a19577240fc796297ad50c9c39523d8a62293ef536188df8af56a03853b075f