[INFO] fetching crate generate-captcha 0.1.0...
[INFO] testing generate-captcha-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate generate-captcha 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate generate-captcha 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate generate-captcha 0.1.0
[INFO] finished tweaking crates.io crate generate-captcha 0.1.0
[INFO] tweaked toml for crates.io crate generate-captcha 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate generate-captcha 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fallible_collections v0.4.3
[INFO] [stderr]   Downloaded captcha v0.0.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0241dd6f00bfe251df3443cd5cfc32dbe1f20d6e8706351aceea1fed922e4a88
[INFO] running `Command { std: "docker" "start" "-a" "0241dd6f00bfe251df3443cd5cfc32dbe1f20d6e8706351aceea1fed922e4a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0241dd6f00bfe251df3443cd5cfc32dbe1f20d6e8706351aceea1fed922e4a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0241dd6f00bfe251df3443cd5cfc32dbe1f20d6e8706351aceea1fed922e4a88", kill_on_drop: false }`
[INFO] [stdout] 0241dd6f00bfe251df3443cd5cfc32dbe1f20d6e8706351aceea1fed922e4a88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 718e0cbb347a28f15fd3c5b17c9892199db0d6fc6f1fb8992cea974f8c39b81e
[INFO] running `Command { std: "docker" "start" "-a" "718e0cbb347a28f15fd3c5b17c9892199db0d6fc6f1fb8992cea974f8c39b81e", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling rgb v0.8.27
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling flate2 v1.0.21
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling console v0.14.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling fallible_collections v0.4.3
[INFO] [stderr]    Compiling lodepng v3.4.6
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling indicatif v0.16.2
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling captcha v0.0.8
[INFO] [stderr]    Compiling generate-captcha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.79s
[INFO] running `Command { std: "docker" "inspect" "718e0cbb347a28f15fd3c5b17c9892199db0d6fc6f1fb8992cea974f8c39b81e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "718e0cbb347a28f15fd3c5b17c9892199db0d6fc6f1fb8992cea974f8c39b81e", kill_on_drop: false }`
[INFO] [stdout] 718e0cbb347a28f15fd3c5b17c9892199db0d6fc6f1fb8992cea974f8c39b81e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cb683109ab40e9ff7237ed18989eae0927bbf65d8ad2b042ab6413c69a62280
[INFO] running `Command { std: "docker" "start" "-a" "8cb683109ab40e9ff7237ed18989eae0927bbf65d8ad2b042ab6413c69a62280", kill_on_drop: false }`
[INFO] [stderr]    Compiling generate-captcha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "8cb683109ab40e9ff7237ed18989eae0927bbf65d8ad2b042ab6413c69a62280", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cb683109ab40e9ff7237ed18989eae0927bbf65d8ad2b042ab6413c69a62280", kill_on_drop: false }`
[INFO] [stdout] 8cb683109ab40e9ff7237ed18989eae0927bbf65d8ad2b042ab6413c69a62280
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cb5bc568c9710ab331f9d138f8a44571bb3980331fb25ca7604c0011a764e6a2
[INFO] running `Command { std: "docker" "start" "-a" "cb5bc568c9710ab331f9d138f8a44571bb3980331fb25ca7604c0011a764e6a2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/generate_captcha-cf1175ec719905de)
[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" "cb5bc568c9710ab331f9d138f8a44571bb3980331fb25ca7604c0011a764e6a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb5bc568c9710ab331f9d138f8a44571bb3980331fb25ca7604c0011a764e6a2", kill_on_drop: false }`
[INFO] [stdout] cb5bc568c9710ab331f9d138f8a44571bb3980331fb25ca7604c0011a764e6a2