[INFO] cloning repository https://github.com/furkanksl/Learning-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/furkanksl/Learning-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffurkanksl%2FLearning-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffurkanksl%2FLearning-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9beaadd204dacd2c7cbb0848e2b109cdfb5c8164
[INFO] testing furkanksl/Learning-Rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffurkanksl%2FLearning-Rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/furkanksl/Learning-Rust 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/furkanksl/Learning-Rust
[INFO] finished tweaking git repo https://github.com/furkanksl/Learning-Rust
[INFO] tweaked toml for git repo https://github.com/furkanksl/Learning-Rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/furkanksl/Learning-Rust 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] 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] 1e889a5b2fe25de7f253b30f3d80f746aa077ddffd54ec3c65958a9dc038ad89
[INFO] running `Command { std: "docker" "start" "-a" "1e889a5b2fe25de7f253b30f3d80f746aa077ddffd54ec3c65958a9dc038ad89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e889a5b2fe25de7f253b30f3d80f746aa077ddffd54ec3c65958a9dc038ad89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e889a5b2fe25de7f253b30f3d80f746aa077ddffd54ec3c65958a9dc038ad89", kill_on_drop: false }`
[INFO] [stdout] 1e889a5b2fe25de7f253b30f3d80f746aa077ddffd54ec3c65958a9dc038ad89
[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] 32062ecdb1676725f019e9a68642626837d7a39cb4c36d814b4a70619e38b829
[INFO] running `Command { std: "docker" "start" "-a" "32062ecdb1676725f019e9a68642626837d7a39cb4c36d814b4a70619e38b829", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.94s
[INFO] running `Command { std: "docker" "inspect" "32062ecdb1676725f019e9a68642626837d7a39cb4c36d814b4a70619e38b829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32062ecdb1676725f019e9a68642626837d7a39cb4c36d814b4a70619e38b829", kill_on_drop: false }`
[INFO] [stdout] 32062ecdb1676725f019e9a68642626837d7a39cb4c36d814b4a70619e38b829
[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] cbf5fc00a1ec1539a68bb3491029eb4388dcf7b0ed5780a52f0333bd7dd22322
[INFO] running `Command { std: "docker" "start" "-a" "cbf5fc00a1ec1539a68bb3491029eb4388dcf7b0ed5780a52f0333bd7dd22322", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "cbf5fc00a1ec1539a68bb3491029eb4388dcf7b0ed5780a52f0333bd7dd22322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbf5fc00a1ec1539a68bb3491029eb4388dcf7b0ed5780a52f0333bd7dd22322", kill_on_drop: false }`
[INFO] [stdout] cbf5fc00a1ec1539a68bb3491029eb4388dcf7b0ed5780a52f0333bd7dd22322
[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] adea4d198b0a6593e7c5ef811a84bd6f4d3a4bd8ec7c92761fdc0e9df36227bf
[INFO] running `Command { std: "docker" "start" "-a" "adea4d198b0a6593e7c5ef811a84bd6f4d3a4bd8ec7c92761fdc0e9df36227bf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_rust-aacc4c89483fef46)
[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" "adea4d198b0a6593e7c5ef811a84bd6f4d3a4bd8ec7c92761fdc0e9df36227bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adea4d198b0a6593e7c5ef811a84bd6f4d3a4bd8ec7c92761fdc0e9df36227bf", kill_on_drop: false }`
[INFO] [stdout] adea4d198b0a6593e7c5ef811a84bd6f4d3a4bd8ec7c92761fdc0e9df36227bf