[INFO] fetching crate prometheus-scrape 0.1.1...
[INFO] testing prometheus-scrape-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate prometheus-scrape 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate prometheus-scrape 0.1.1 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 prometheus-scrape 0.1.1
[INFO] finished tweaking crates.io crate prometheus-scrape 0.1.1
[INFO] tweaked toml for crates.io crate prometheus-scrape 0.1.1 written to /workspace/builds/worker-2/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-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] [stdout] ca1be5828f0f9e26e89c016988f36341e748d0957f02c02675367ac8ef573df5
[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" "ca1be5828f0f9e26e89c016988f36341e748d0957f02c02675367ac8ef573df5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca1be5828f0f9e26e89c016988f36341e748d0957f02c02675367ac8ef573df5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca1be5828f0f9e26e89c016988f36341e748d0957f02c02675367ac8ef573df5", kill_on_drop: false }`
[INFO] [stdout] ca1be5828f0f9e26e89c016988f36341e748d0957f02c02675367ac8ef573df5
[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] [stdout] e71ddea01def70333db4c1a4a3f4ecc1715f69f79b8eb722ae26107b84d6821d
[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" "e71ddea01def70333db4c1a4a3f4ecc1715f69f79b8eb722ae26107b84d6821d", kill_on_drop: false }`
[INFO] [stderr]    Compiling prometheus-scrape v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `Command { std: "docker" "inspect" "e71ddea01def70333db4c1a4a3f4ecc1715f69f79b8eb722ae26107b84d6821d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e71ddea01def70333db4c1a4a3f4ecc1715f69f79b8eb722ae26107b84d6821d", kill_on_drop: false }`
[INFO] [stdout] e71ddea01def70333db4c1a4a3f4ecc1715f69f79b8eb722ae26107b84d6821d
[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] [stdout] e288b9e6c683ffa01f2a9b5f8e19e1cd341b0abbafefbf0ea34a622b7deae485
[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" "e288b9e6c683ffa01f2a9b5f8e19e1cd341b0abbafefbf0ea34a622b7deae485", kill_on_drop: false }`
[INFO] [stderr]    Compiling prometheus-scrape v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `Command { std: "docker" "inspect" "e288b9e6c683ffa01f2a9b5f8e19e1cd341b0abbafefbf0ea34a622b7deae485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e288b9e6c683ffa01f2a9b5f8e19e1cd341b0abbafefbf0ea34a622b7deae485", kill_on_drop: false }`
[INFO] [stdout] e288b9e6c683ffa01f2a9b5f8e19e1cd341b0abbafefbf0ea34a622b7deae485
[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] 955459f86c110ac9686ea67d14f9335ba83486d86c138d2d358f5ec3a038b03a
[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" "955459f86c110ac9686ea67d14f9335ba83486d86c138d2d358f5ec3a038b03a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/prometheus_scrape-92eef14002e7d26a
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_golang_float ... ok
[INFO] [stdout] test tests::test_labels_parse ... ok
[INFO] [stderr]    Doc-tests prometheus-scrape
[INFO] [stdout] test tests::test_parse_samples ... ok
[INFO] [stdout] test tests::test_lineinfo_parse ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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" "955459f86c110ac9686ea67d14f9335ba83486d86c138d2d358f5ec3a038b03a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "955459f86c110ac9686ea67d14f9335ba83486d86c138d2d358f5ec3a038b03a", kill_on_drop: false }`
[INFO] [stdout] 955459f86c110ac9686ea67d14f9335ba83486d86c138d2d358f5ec3a038b03a