[INFO] fetching crate wuf 0.1.2...
[INFO] testing wuf-0.1.2 against 1.49.0 for beta-1.50-1
[INFO] extracting crate wuf 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate wuf 0.1.2 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 wuf 0.1.2
[INFO] finished tweaking crates.io crate wuf 0.1.2
[INFO] tweaked toml for crates.io crate wuf 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8692145b36c9ad11537e3eca70a504f2fd90303d99f9f370a8bed11ab19d559f
[INFO] running `Command { std: "docker" "start" "-a" "8692145b36c9ad11537e3eca70a504f2fd90303d99f9f370a8bed11ab19d559f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8692145b36c9ad11537e3eca70a504f2fd90303d99f9f370a8bed11ab19d559f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8692145b36c9ad11537e3eca70a504f2fd90303d99f9f370a8bed11ab19d559f", kill_on_drop: false }`
[INFO] [stdout] 8692145b36c9ad11537e3eca70a504f2fd90303d99f9f370a8bed11ab19d559f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] 676312856a53039c590019fabd20c8b340d9e7b3919838c2aebfb4e90101592e
[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" "676312856a53039c590019fabd20c8b340d9e7b3919838c2aebfb4e90101592e", kill_on_drop: false }`
[INFO] [stderr]    Compiling wuf v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "676312856a53039c590019fabd20c8b340d9e7b3919838c2aebfb4e90101592e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "676312856a53039c590019fabd20c8b340d9e7b3919838c2aebfb4e90101592e", kill_on_drop: false }`
[INFO] [stdout] 676312856a53039c590019fabd20c8b340d9e7b3919838c2aebfb4e90101592e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] da7871c08a14988f76d1e5f9474c1aee8dac6d5a75faf56ba73627294305469a
[INFO] running `Command { std: "docker" "start" "-a" "da7871c08a14988f76d1e5f9474c1aee8dac6d5a75faf56ba73627294305469a", kill_on_drop: false }`
[INFO] [stderr]    Compiling wuf v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "da7871c08a14988f76d1e5f9474c1aee8dac6d5a75faf56ba73627294305469a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da7871c08a14988f76d1e5f9474c1aee8dac6d5a75faf56ba73627294305469a", kill_on_drop: false }`
[INFO] [stdout] da7871c08a14988f76d1e5f9474c1aee8dac6d5a75faf56ba73627294305469a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 19b119ae466357b651888f428df1315c77a2beecb76200b3f4104f8f27146ef1
[INFO] running `Command { std: "docker" "start" "-a" "19b119ae466357b651888f428df1315c77a2beecb76200b3f4104f8f27146ef1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/wuf-09c598f20af8d747
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::should_get_count ... ok
[INFO] [stdout] test tests::should_connect ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wuf
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] test src/lib.rs - Graph::connected (line 55) ... ok
[INFO] [stdout] test src/lib.rs - Graph::count (line 39) ... ok
[INFO] [stdout] test src/lib.rs - Graph::connect (line 73) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "19b119ae466357b651888f428df1315c77a2beecb76200b3f4104f8f27146ef1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19b119ae466357b651888f428df1315c77a2beecb76200b3f4104f8f27146ef1", kill_on_drop: false }`
[INFO] [stdout] 19b119ae466357b651888f428df1315c77a2beecb76200b3f4104f8f27146ef1