[INFO] fetching crate generate-captcha 0.1.0...
[INFO] testing generate-captcha-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate generate-captcha 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate generate-captcha 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-12/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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] daf8fe7fc070a0068acb604e226bd2a2438301e270ef42527226e6d5f49f24e2
[INFO] running `Command { std: "docker" "start" "-a" "daf8fe7fc070a0068acb604e226bd2a2438301e270ef42527226e6d5f49f24e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "daf8fe7fc070a0068acb604e226bd2a2438301e270ef42527226e6d5f49f24e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "daf8fe7fc070a0068acb604e226bd2a2438301e270ef42527226e6d5f49f24e2", kill_on_drop: false }`
[INFO] [stdout] daf8fe7fc070a0068acb604e226bd2a2438301e270ef42527226e6d5f49f24e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7508ce97d9ee83ae0b19f050905291aca397462bd8d4cb1401f923a7820aa4a
[INFO] running `Command { std: "docker" "start" "-a" "c7508ce97d9ee83ae0b19f050905291aca397462bd8d4cb1401f923a7820aa4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling flate2 v1.0.21
[INFO] [stderr]    Compiling console v0.14.1
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling gif v0.11.2
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling indicatif v0.16.2
[INFO] [stderr]    Compiling fallible_collections v0.4.3
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling lodepng v3.4.6
[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 17.66s
[INFO] running `Command { std: "docker" "inspect" "c7508ce97d9ee83ae0b19f050905291aca397462bd8d4cb1401f923a7820aa4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7508ce97d9ee83ae0b19f050905291aca397462bd8d4cb1401f923a7820aa4a", kill_on_drop: false }`
[INFO] [stdout] c7508ce97d9ee83ae0b19f050905291aca397462bd8d4cb1401f923a7820aa4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a61691a96e7817cd04ba5329cc43039972012ab3ddd379c58c737f029a7759b
[INFO] running `Command { std: "docker" "start" "-a" "2a61691a96e7817cd04ba5329cc43039972012ab3ddd379c58c737f029a7759b", kill_on_drop: false }`
[INFO] [stderr]    Compiling generate-captcha v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "2a61691a96e7817cd04ba5329cc43039972012ab3ddd379c58c737f029a7759b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a61691a96e7817cd04ba5329cc43039972012ab3ddd379c58c737f029a7759b", kill_on_drop: false }`
[INFO] [stdout] 2a61691a96e7817cd04ba5329cc43039972012ab3ddd379c58c737f029a7759b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9b08ceeb81b89719f0dfd0f8f010afdb63183ce42b850c29262220cfadab5d67
[INFO] running `Command { std: "docker" "start" "-a" "9b08ceeb81b89719f0dfd0f8f010afdb63183ce42b850c29262220cfadab5d67", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/generate_captcha-c5177071e0710feb)
[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" "9b08ceeb81b89719f0dfd0f8f010afdb63183ce42b850c29262220cfadab5d67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b08ceeb81b89719f0dfd0f8f010afdb63183ce42b850c29262220cfadab5d67", kill_on_drop: false }`
[INFO] [stdout] 9b08ceeb81b89719f0dfd0f8f010afdb63183ce42b850c29262220cfadab5d67