[INFO] fetching crate hotmic-prometheus 0.1.0...
[INFO] testing hotmic-prometheus-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate hotmic-prometheus 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate hotmic-prometheus 0.1.0 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 hotmic-prometheus 0.1.0
[INFO] finished tweaking crates.io crate hotmic-prometheus 0.1.0
[INFO] tweaked toml for crates.io crate hotmic-prometheus 0.1.0 written to /workspace/builds/worker-5/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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] a7657dade714e666a83de4f91020b3903dd203065022b813826ff101316eb531
[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" "a7657dade714e666a83de4f91020b3903dd203065022b813826ff101316eb531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7657dade714e666a83de4f91020b3903dd203065022b813826ff101316eb531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7657dade714e666a83de4f91020b3903dd203065022b813826ff101316eb531", kill_on_drop: false }`
[INFO] [stdout] a7657dade714e666a83de4f91020b3903dd203065022b813826ff101316eb531
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 1883b2d064b5b0052cf883616c3c660296b340426fd8fa64953b44f312b00f61
[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" "1883b2d064b5b0052cf883616c3c660296b340426fd8fa64953b44f312b00f61", kill_on_drop: false }`
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling quanta v0.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling hdrhistogram v6.3.4
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling hotmic v0.8.2
[INFO] [stderr]    Compiling hotmic-prometheus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.93s
[INFO] running `Command { std: "docker" "inspect" "1883b2d064b5b0052cf883616c3c660296b340426fd8fa64953b44f312b00f61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1883b2d064b5b0052cf883616c3c660296b340426fd8fa64953b44f312b00f61", kill_on_drop: false }`
[INFO] [stdout] 1883b2d064b5b0052cf883616c3c660296b340426fd8fa64953b44f312b00f61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 5e017b6e0f2130adde9360a7cb0489c9a3d52aae20b8f7128ff315d9211514b3
[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" "5e017b6e0f2130adde9360a7cb0489c9a3d52aae20b8f7128ff315d9211514b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling hotmic-prometheus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "5e017b6e0f2130adde9360a7cb0489c9a3d52aae20b8f7128ff315d9211514b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e017b6e0f2130adde9360a7cb0489c9a3d52aae20b8f7128ff315d9211514b3", kill_on_drop: false }`
[INFO] [stdout] 5e017b6e0f2130adde9360a7cb0489c9a3d52aae20b8f7128ff315d9211514b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 171180209d406d84c405dd228fdcce25287bc1563cc79d246afaf2be57d6e4fb
[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" "171180209d406d84c405dd228fdcce25287bc1563cc79d246afaf2be57d6e4fb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hotmic_prometheus-a8a15e801bb88147
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hotmic-prometheus
[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" "171180209d406d84c405dd228fdcce25287bc1563cc79d246afaf2be57d6e4fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "171180209d406d84c405dd228fdcce25287bc1563cc79d246afaf2be57d6e4fb", kill_on_drop: false }`
[INFO] [stdout] 171180209d406d84c405dd228fdcce25287bc1563cc79d246afaf2be57d6e4fb