[INFO] cloning repository https://github.com/kevinmcfarlane/rust-digit-recognizer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kevinmcfarlane/rust-digit-recognizer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevinmcfarlane%2Frust-digit-recognizer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevinmcfarlane%2Frust-digit-recognizer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23cfeaa24fb926dfe29ec40811e99fe3d9b08d69
[INFO] testing kevinmcfarlane/rust-digit-recognizer against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkevinmcfarlane%2Frust-digit-recognizer" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kevinmcfarlane/rust-digit-recognizer 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 git repo https://github.com/kevinmcfarlane/rust-digit-recognizer
[INFO] finished tweaking git repo https://github.com/kevinmcfarlane/rust-digit-recognizer
[INFO] tweaked toml for git repo https://github.com/kevinmcfarlane/rust-digit-recognizer written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/kevinmcfarlane/rust-digit-recognizer 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]  Downloading crates ...
[INFO] [stderr]   Downloaded simple-stopwatch v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] f22dff91598a5fd025b9f663b36c70bbe62fa1bf968dd5a9528f03325e88e789
[INFO] running `Command { std: "docker" "start" "-a" "f22dff91598a5fd025b9f663b36c70bbe62fa1bf968dd5a9528f03325e88e789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f22dff91598a5fd025b9f663b36c70bbe62fa1bf968dd5a9528f03325e88e789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f22dff91598a5fd025b9f663b36c70bbe62fa1bf968dd5a9528f03325e88e789", kill_on_drop: false }`
[INFO] [stdout] f22dff91598a5fd025b9f663b36c70bbe62fa1bf968dd5a9528f03325e88e789
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 95022d5eb25ca5e7f6ab1062e08f66347548661cef397cac734e96cf77b0a1ec
[INFO] running `Command { std: "docker" "start" "-a" "95022d5eb25ca5e7f6ab1062e08f66347548661cef397cac734e96cf77b0a1ec", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling simple-stopwatch v0.1.4
[INFO] [stderr]    Compiling rust-digit-recognizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.32s
[INFO] running `Command { std: "docker" "inspect" "95022d5eb25ca5e7f6ab1062e08f66347548661cef397cac734e96cf77b0a1ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95022d5eb25ca5e7f6ab1062e08f66347548661cef397cac734e96cf77b0a1ec", kill_on_drop: false }`
[INFO] [stdout] 95022d5eb25ca5e7f6ab1062e08f66347548661cef397cac734e96cf77b0a1ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 54560257584a1108feaea469d021f3039514d34f9de062cfc09f4ce6067e68d8
[INFO] running `Command { std: "docker" "start" "-a" "54560257584a1108feaea469d021f3039514d34f9de062cfc09f4ce6067e68d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-digit-recognizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "54560257584a1108feaea469d021f3039514d34f9de062cfc09f4ce6067e68d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54560257584a1108feaea469d021f3039514d34f9de062cfc09f4ce6067e68d8", kill_on_drop: false }`
[INFO] [stdout] 54560257584a1108feaea469d021f3039514d34f9de062cfc09f4ce6067e68d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] 8f8e43046be5d1ec60dd4bc0b512671c45217e6b033b70124f55a6cf16ea38ac
[INFO] running `Command { std: "docker" "start" "-a" "8f8e43046be5d1ec60dd4bc0b512671c45217e6b033b70124f55a6cf16ea38ac", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_digit_recognizer-393dd83dd11a92f8)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_digit_recognizer-f234662ab4bc09f5)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    Doc-tests rust-digit-recognizer
[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] [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" "8f8e43046be5d1ec60dd4bc0b512671c45217e6b033b70124f55a6cf16ea38ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f8e43046be5d1ec60dd4bc0b512671c45217e6b033b70124f55a6cf16ea38ac", kill_on_drop: false }`
[INFO] [stdout] 8f8e43046be5d1ec60dd4bc0b512671c45217e6b033b70124f55a6cf16ea38ac