[INFO] cloning repository https://github.com/marcwenz/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/marcwenz/learning-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcwenz%2Flearning-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarcwenz%2Flearning-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a14f95e52d1b356a15eab75f802668ee15f9ca6
[INFO] testing marcwenz/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%2Fmarcwenz%2Flearning-rust" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/marcwenz/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/marcwenz/learning-rust
[INFO] finished tweaking git repo https://github.com/marcwenz/learning-rust
[INFO] tweaked toml for git repo https://github.com/marcwenz/learning-rust written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/marcwenz/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] bd8aa9db5e62383b9f70ba8550c47ea3cfcd288ca0061de4e98bd8a6b5722b68
[INFO] running `Command { std: "docker" "start" "-a" "bd8aa9db5e62383b9f70ba8550c47ea3cfcd288ca0061de4e98bd8a6b5722b68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd8aa9db5e62383b9f70ba8550c47ea3cfcd288ca0061de4e98bd8a6b5722b68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd8aa9db5e62383b9f70ba8550c47ea3cfcd288ca0061de4e98bd8a6b5722b68", kill_on_drop: false }`
[INFO] [stdout] bd8aa9db5e62383b9f70ba8550c47ea3cfcd288ca0061de4e98bd8a6b5722b68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 9c3aea3b7d6b3eb33a29e59db19d6f3e7ab869d7d6e47f9fcbfd37c64edb7100
[INFO] running `Command { std: "docker" "start" "-a" "9c3aea3b7d6b3eb33a29e59db19d6f3e7ab869d7d6e47f9fcbfd37c64edb7100", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "9c3aea3b7d6b3eb33a29e59db19d6f3e7ab869d7d6e47f9fcbfd37c64edb7100", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c3aea3b7d6b3eb33a29e59db19d6f3e7ab869d7d6e47f9fcbfd37c64edb7100", kill_on_drop: false }`
[INFO] [stdout] 9c3aea3b7d6b3eb33a29e59db19d6f3e7ab869d7d6e47f9fcbfd37c64edb7100
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] d70aa1efd8238b567704be2499c9fa7adacbe3dd3431d53ac87ad649fdb93b25
[INFO] running `Command { std: "docker" "start" "-a" "d70aa1efd8238b567704be2499c9fa7adacbe3dd3431d53ac87ad649fdb93b25", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "d70aa1efd8238b567704be2499c9fa7adacbe3dd3431d53ac87ad649fdb93b25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d70aa1efd8238b567704be2499c9fa7adacbe3dd3431d53ac87ad649fdb93b25", kill_on_drop: false }`
[INFO] [stdout] d70aa1efd8238b567704be2499c9fa7adacbe3dd3431d53ac87ad649fdb93b25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 95c465ec39a22efd297803bbd382cfb0d601195067920ebeabbf0b85e5da0829
[INFO] running `Command { std: "docker" "start" "-a" "95c465ec39a22efd297803bbd382cfb0d601195067920ebeabbf0b85e5da0829", kill_on_drop: false }`
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learning-e44b456d8a484e96)
[INFO] running `Command { std: "docker" "inspect" "95c465ec39a22efd297803bbd382cfb0d601195067920ebeabbf0b85e5da0829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95c465ec39a22efd297803bbd382cfb0d601195067920ebeabbf0b85e5da0829", kill_on_drop: false }`
[INFO] [stdout] 95c465ec39a22efd297803bbd382cfb0d601195067920ebeabbf0b85e5da0829