[INFO] cloning repository https://github.com/HulaTime/rust-fundamentals
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HulaTime/rust-fundamentals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHulaTime%2Frust-fundamentals", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHulaTime%2Frust-fundamentals'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0e50fbd4c3dacfda113bb38e4101206930abf79
[INFO] testing HulaTime/rust-fundamentals against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHulaTime%2Frust-fundamentals" "/workspace/builds/worker-113/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-113/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HulaTime/rust-fundamentals 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 git repo https://github.com/HulaTime/rust-fundamentals
[INFO] finished tweaking git repo https://github.com/HulaTime/rust-fundamentals
[INFO] tweaked toml for git repo https://github.com/HulaTime/rust-fundamentals written to /workspace/builds/worker-113/source/Cargo.toml
[INFO] crate git repo https://github.com/HulaTime/rust-fundamentals 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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] 2d9e4eda2d888be711a361c7f9b71f1072e586d46dd44aa11e70f686786bf65b
[INFO] running `Command { std: "docker" "start" "-a" "2d9e4eda2d888be711a361c7f9b71f1072e586d46dd44aa11e70f686786bf65b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d9e4eda2d888be711a361c7f9b71f1072e586d46dd44aa11e70f686786bf65b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d9e4eda2d888be711a361c7f9b71f1072e586d46dd44aa11e70f686786bf65b", kill_on_drop: false }`
[INFO] [stdout] 2d9e4eda2d888be711a361c7f9b71f1072e586d46dd44aa11e70f686786bf65b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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] a80d8143a7c434f215217e3f3cd961d6c77f012ef7dd2599a06a79849fdaeb9c
[INFO] running `Command { std: "docker" "start" "-a" "a80d8143a7c434f215217e3f3cd961d6c77f012ef7dd2599a06a79849fdaeb9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "a80d8143a7c434f215217e3f3cd961d6c77f012ef7dd2599a06a79849fdaeb9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a80d8143a7c434f215217e3f3cd961d6c77f012ef7dd2599a06a79849fdaeb9c", kill_on_drop: false }`
[INFO] [stdout] a80d8143a7c434f215217e3f3cd961d6c77f012ef7dd2599a06a79849fdaeb9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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] 9bfd87c085e9feef60f683d4f5385a25b4e35ee60940edbdd444e7cf15cd7f26
[INFO] running `Command { std: "docker" "start" "-a" "9bfd87c085e9feef60f683d4f5385a25b4e35ee60940edbdd444e7cf15cd7f26", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `Command { std: "docker" "inspect" "9bfd87c085e9feef60f683d4f5385a25b4e35ee60940edbdd444e7cf15cd7f26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bfd87c085e9feef60f683d4f5385a25b4e35ee60940edbdd444e7cf15cd7f26", kill_on_drop: false }`
[INFO] [stdout] 9bfd87c085e9feef60f683d4f5385a25b4e35ee60940edbdd444e7cf15cd7f26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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] c2e4e581269b79ec5e43b8fba5a082cba13b78704f5fbd11cfffd47ad214736c
[INFO] running `Command { std: "docker" "start" "-a" "c2e4e581269b79ec5e43b8fba5a082cba13b78704f5fbd11cfffd47ad214736c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_world-09a8353126102ced)
[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" "c2e4e581269b79ec5e43b8fba5a082cba13b78704f5fbd11cfffd47ad214736c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2e4e581269b79ec5e43b8fba5a082cba13b78704f5fbd11cfffd47ad214736c", kill_on_drop: false }`
[INFO] [stdout] c2e4e581269b79ec5e43b8fba5a082cba13b78704f5fbd11cfffd47ad214736c