[INFO] fetching crate makeflow 0.0.0...
[INFO] testing makeflow-0.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate makeflow 0.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate makeflow 0.0.0 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 crates.io crate makeflow 0.0.0
[INFO] finished tweaking crates.io crate makeflow 0.0.0
[INFO] tweaked toml for crates.io crate makeflow 0.0.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate makeflow 0.0.0 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d409853e8cb7a4f4f2afbdb6eb73d2c29ccd345ae27604894ce059e8662b459
[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" "4d409853e8cb7a4f4f2afbdb6eb73d2c29ccd345ae27604894ce059e8662b459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d409853e8cb7a4f4f2afbdb6eb73d2c29ccd345ae27604894ce059e8662b459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d409853e8cb7a4f4f2afbdb6eb73d2c29ccd345ae27604894ce059e8662b459", kill_on_drop: false }`
[INFO] [stdout] 4d409853e8cb7a4f4f2afbdb6eb73d2c29ccd345ae27604894ce059e8662b459
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/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] 6d199051d7dd0684c48a349bc2264124eab1dbdd3b146e2fc5eb9361561934b6
[INFO] running `Command { std: "docker" "start" "-a" "6d199051d7dd0684c48a349bc2264124eab1dbdd3b146e2fc5eb9361561934b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling makeflow v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `Command { std: "docker" "inspect" "6d199051d7dd0684c48a349bc2264124eab1dbdd3b146e2fc5eb9361561934b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d199051d7dd0684c48a349bc2264124eab1dbdd3b146e2fc5eb9361561934b6", kill_on_drop: false }`
[INFO] [stdout] 6d199051d7dd0684c48a349bc2264124eab1dbdd3b146e2fc5eb9361561934b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d512821b7d6ba9e8c0803ad8606ec4268e54b91b30404a559bda2e4c8d1459d6
[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" "d512821b7d6ba9e8c0803ad8606ec4268e54b91b30404a559bda2e4c8d1459d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling makeflow v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "d512821b7d6ba9e8c0803ad8606ec4268e54b91b30404a559bda2e4c8d1459d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d512821b7d6ba9e8c0803ad8606ec4268e54b91b30404a559bda2e4c8d1459d6", kill_on_drop: false }`
[INFO] [stdout] d512821b7d6ba9e8c0803ad8606ec4268e54b91b30404a559bda2e4c8d1459d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 92e1e1814c1f36073f48017b0de9ce9e78067e108f6523224446ddcf41648caf
[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" "92e1e1814c1f36073f48017b0de9ce9e78067e108f6523224446ddcf41648caf", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/makeflow-be962a9c11241257
[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" "92e1e1814c1f36073f48017b0de9ce9e78067e108f6523224446ddcf41648caf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92e1e1814c1f36073f48017b0de9ce9e78067e108f6523224446ddcf41648caf", kill_on_drop: false }`
[INFO] [stdout] 92e1e1814c1f36073f48017b0de9ce9e78067e108f6523224446ddcf41648caf