[INFO] cloning repository https://github.com/kamranajabbar/ch_03_common_concepts
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kamranajabbar/ch_03_common_concepts" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamranajabbar%2Fch_03_common_concepts", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamranajabbar%2Fch_03_common_concepts'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ef4c3a4394c56308265b9dfc3b2058df8acfdaa5
[INFO] testing kamranajabbar/ch_03_common_concepts against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkamranajabbar%2Fch_03_common_concepts" "/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/kamranajabbar/ch_03_common_concepts 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/kamranajabbar/ch_03_common_concepts
[INFO] finished tweaking git repo https://github.com/kamranajabbar/ch_03_common_concepts
[INFO] tweaked toml for git repo https://github.com/kamranajabbar/ch_03_common_concepts written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/kamranajabbar/ch_03_common_concepts 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] ff6055aae0692e498260c97c169c77d6e22ffeb78ed3cc528b50c49244388467
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ff6055aae0692e498260c97c169c77d6e22ffeb78ed3cc528b50c49244388467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff6055aae0692e498260c97c169c77d6e22ffeb78ed3cc528b50c49244388467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff6055aae0692e498260c97c169c77d6e22ffeb78ed3cc528b50c49244388467", kill_on_drop: false }`
[INFO] [stdout] ff6055aae0692e498260c97c169c77d6e22ffeb78ed3cc528b50c49244388467
[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] 07e1a2939ddf90d6bc65892a604f6663b95d99372f7d6d3ec631ed9451f3e701
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "07e1a2939ddf90d6bc65892a604f6663b95d99372f7d6d3ec631ed9451f3e701", kill_on_drop: false }`
[INFO] [stderr]    Compiling ch_03_common_concepts v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.49s
[INFO] running `Command { std: "docker" "inspect" "07e1a2939ddf90d6bc65892a604f6663b95d99372f7d6d3ec631ed9451f3e701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07e1a2939ddf90d6bc65892a604f6663b95d99372f7d6d3ec631ed9451f3e701", kill_on_drop: false }`
[INFO] [stdout] 07e1a2939ddf90d6bc65892a604f6663b95d99372f7d6d3ec631ed9451f3e701
[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] 1cb932525d2945f775c07d6e2068e605fe93d6cf556087c2a1a9e428db3b376c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1cb932525d2945f775c07d6e2068e605fe93d6cf556087c2a1a9e428db3b376c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ch_03_common_concepts v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "1cb932525d2945f775c07d6e2068e605fe93d6cf556087c2a1a9e428db3b376c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cb932525d2945f775c07d6e2068e605fe93d6cf556087c2a1a9e428db3b376c", kill_on_drop: false }`
[INFO] [stdout] 1cb932525d2945f775c07d6e2068e605fe93d6cf556087c2a1a9e428db3b376c
[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] c3bbe53a50a6f6e770960ae23cc555506148d1dc5a03e8fd6dbc2ba82cecb06d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c3bbe53a50a6f6e770960ae23cc555506148d1dc5a03e8fd6dbc2ba82cecb06d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ch_03_common_concepts-e77ec5a6ad50ab5f)
[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" "c3bbe53a50a6f6e770960ae23cc555506148d1dc5a03e8fd6dbc2ba82cecb06d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3bbe53a50a6f6e770960ae23cc555506148d1dc5a03e8fd6dbc2ba82cecb06d", kill_on_drop: false }`
[INFO] [stdout] c3bbe53a50a6f6e770960ae23cc555506148d1dc5a03e8fd6dbc2ba82cecb06d