[INFO] cloning repository https://github.com/dstaatz/ackermann
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dstaatz/ackermann" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdstaatz%2Fackermann", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdstaatz%2Fackermann'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36ac557be0ee7545c27ae22eb1b4b3f75f9eae9f
[INFO] testing dstaatz/ackermann against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdstaatz%2Fackermann" "/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/dstaatz/ackermann on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dstaatz/ackermann
[INFO] finished tweaking git repo https://github.com/dstaatz/ackermann
[INFO] tweaked toml for git repo https://github.com/dstaatz/ackermann written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/dstaatz/ackermann already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 30ef35de0a35da3e6619648a3d9dc16f6858b42501040c92c4162ab8d3e52818
[INFO] running `Command { std: "docker" "start" "-a" "30ef35de0a35da3e6619648a3d9dc16f6858b42501040c92c4162ab8d3e52818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30ef35de0a35da3e6619648a3d9dc16f6858b42501040c92c4162ab8d3e52818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30ef35de0a35da3e6619648a3d9dc16f6858b42501040c92c4162ab8d3e52818", kill_on_drop: false }`
[INFO] [stdout] 30ef35de0a35da3e6619648a3d9dc16f6858b42501040c92c4162ab8d3e52818
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 29c723f46ea61eed1c0431a7eb64f59593754e3ae5bba0099ecfdef23b015db4
[INFO] running `Command { std: "docker" "start" "-a" "29c723f46ea61eed1c0431a7eb64f59593754e3ae5bba0099ecfdef23b015db4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling ron v0.6.2
[INFO] [stderr]    Compiling ackermann v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.39s
[INFO] running `Command { std: "docker" "inspect" "29c723f46ea61eed1c0431a7eb64f59593754e3ae5bba0099ecfdef23b015db4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29c723f46ea61eed1c0431a7eb64f59593754e3ae5bba0099ecfdef23b015db4", kill_on_drop: false }`
[INFO] [stdout] 29c723f46ea61eed1c0431a7eb64f59593754e3ae5bba0099ecfdef23b015db4
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b889e4d38f724484a6dc7cd1dd0ee04879ded5eb5b52eaa40051d90b0f5d3cac
[INFO] running `Command { std: "docker" "start" "-a" "b889e4d38f724484a6dc7cd1dd0ee04879ded5eb5b52eaa40051d90b0f5d3cac", kill_on_drop: false }`
[INFO] [stderr]    Compiling ackermann v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "b889e4d38f724484a6dc7cd1dd0ee04879ded5eb5b52eaa40051d90b0f5d3cac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b889e4d38f724484a6dc7cd1dd0ee04879ded5eb5b52eaa40051d90b0f5d3cac", kill_on_drop: false }`
[INFO] [stdout] b889e4d38f724484a6dc7cd1dd0ee04879ded5eb5b52eaa40051d90b0f5d3cac
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5bc30e65f1078ac3d6f2f765d6caf2035673f09e9b09b648c039666ffba9b9c9
[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" "5bc30e65f1078ac3d6f2f765d6caf2035673f09e9b09b648c039666ffba9b9c9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ackermann-3efbcb639010ff8d
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5bc30e65f1078ac3d6f2f765d6caf2035673f09e9b09b648c039666ffba9b9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bc30e65f1078ac3d6f2f765d6caf2035673f09e9b09b648c039666ffba9b9c9", kill_on_drop: false }`
[INFO] [stdout] 5bc30e65f1078ac3d6f2f765d6caf2035673f09e9b09b648c039666ffba9b9c9