[INFO] fetching crate metrics-observer-prometheus 0.1.4...
[INFO] testing metrics-observer-prometheus-0.1.4 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate metrics-observer-prometheus 0.1.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate metrics-observer-prometheus 0.1.4 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-observer-prometheus 0.1.4
[INFO] finished tweaking crates.io crate metrics-observer-prometheus 0.1.4
[INFO] tweaked toml for crates.io crate metrics-observer-prometheus 0.1.4 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e04aecebf01e3bfa21e136b1d91027387c8e896bf74e6ac4873eb8f602b7bfda
[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" "e04aecebf01e3bfa21e136b1d91027387c8e896bf74e6ac4873eb8f602b7bfda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e04aecebf01e3bfa21e136b1d91027387c8e896bf74e6ac4873eb8f602b7bfda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e04aecebf01e3bfa21e136b1d91027387c8e896bf74e6ac4873eb8f602b7bfda", kill_on_drop: false }`
[INFO] [stdout] e04aecebf01e3bfa21e136b1d91027387c8e896bf74e6ac4873eb8f602b7bfda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e20511bcf766987848d6b7484915a33b8ad9fe1f760e1b9c3e3a6cd6d46139ae
[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" "e20511bcf766987848d6b7484915a33b8ad9fe1f760e1b9c3e3a6cd6d46139ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling metrics-core v0.5.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling hdrhistogram v6.3.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling metrics-util v0.3.1
[INFO] [stderr]    Compiling metrics-observer-prometheus v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.31s
[INFO] running `Command { std: "docker" "inspect" "e20511bcf766987848d6b7484915a33b8ad9fe1f760e1b9c3e3a6cd6d46139ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e20511bcf766987848d6b7484915a33b8ad9fe1f760e1b9c3e3a6cd6d46139ae", kill_on_drop: false }`
[INFO] [stdout] e20511bcf766987848d6b7484915a33b8ad9fe1f760e1b9c3e3a6cd6d46139ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cbfaab3280bc9d4254bd1b90f6ee81d2de4b2dd44634cba685e40aae8470df8f
[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" "cbfaab3280bc9d4254bd1b90f6ee81d2de4b2dd44634cba685e40aae8470df8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling metrics-observer-prometheus v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "cbfaab3280bc9d4254bd1b90f6ee81d2de4b2dd44634cba685e40aae8470df8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbfaab3280bc9d4254bd1b90f6ee81d2de4b2dd44634cba685e40aae8470df8f", kill_on_drop: false }`
[INFO] [stdout] cbfaab3280bc9d4254bd1b90f6ee81d2de4b2dd44634cba685e40aae8470df8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e435f26f351caa9d4df4b3701a29334c38b8cb22c393676a0b05415604b34b08
[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" "e435f26f351caa9d4df4b3701a29334c38b8cb22c393676a0b05415604b34b08", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/metrics_observer_prometheus-5183daae5353314c
[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] [stderr]    Doc-tests metrics-observer-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" "e435f26f351caa9d4df4b3701a29334c38b8cb22c393676a0b05415604b34b08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e435f26f351caa9d4df4b3701a29334c38b8cb22c393676a0b05415604b34b08", kill_on_drop: false }`
[INFO] [stdout] e435f26f351caa9d4df4b3701a29334c38b8cb22c393676a0b05415604b34b08
