[INFO] fetching crate metrics-exporter-log 0.4.0...
[INFO] testing metrics-exporter-log-0.4.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate metrics-exporter-log 0.4.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate metrics-exporter-log 0.4.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metrics-exporter-log 0.4.0
[INFO] finished tweaking crates.io crate metrics-exporter-log 0.4.0
[INFO] tweaked toml for crates.io crate metrics-exporter-log 0.4.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "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] e9eb3e3b2e513bac3c2917871669824f690c320f7c367ccfa328b6049a4b20b9
[INFO] running `Command { std: "docker" "start" "-a" "e9eb3e3b2e513bac3c2917871669824f690c320f7c367ccfa328b6049a4b20b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9eb3e3b2e513bac3c2917871669824f690c320f7c367ccfa328b6049a4b20b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9eb3e3b2e513bac3c2917871669824f690c320f7c367ccfa328b6049a4b20b9", kill_on_drop: false }`
[INFO] [stdout] e9eb3e3b2e513bac3c2917871669824f690c320f7c367ccfa328b6049a4b20b9
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "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] 3d2d444a9650e46dcde12fb60076d58f7a75c5d7a5ffa05ce23a6386ab7b35e1
[INFO] running `Command { std: "docker" "start" "-a" "3d2d444a9650e46dcde12fb60076d58f7a75c5d7a5ffa05ce23a6386ab7b35e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling metrics-core v0.5.2
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling metrics-exporter-log v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `Command { std: "docker" "inspect" "3d2d444a9650e46dcde12fb60076d58f7a75c5d7a5ffa05ce23a6386ab7b35e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d2d444a9650e46dcde12fb60076d58f7a75c5d7a5ffa05ce23a6386ab7b35e1", kill_on_drop: false }`
[INFO] [stdout] 3d2d444a9650e46dcde12fb60076d58f7a75c5d7a5ffa05ce23a6386ab7b35e1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 327e74ab53f9f275f31dbc71284104b88a9e731d5d1d83edccf678d14ca12140
[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" "327e74ab53f9f275f31dbc71284104b88a9e731d5d1d83edccf678d14ca12140", kill_on_drop: false }`
[INFO] [stderr]    Compiling metrics-exporter-log v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "327e74ab53f9f275f31dbc71284104b88a9e731d5d1d83edccf678d14ca12140", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "327e74ab53f9f275f31dbc71284104b88a9e731d5d1d83edccf678d14ca12140", kill_on_drop: false }`
[INFO] [stdout] 327e74ab53f9f275f31dbc71284104b88a9e731d5d1d83edccf678d14ca12140
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9fb3c7576869b5e31a91f67f64cae24a2b4394074ffc32d92d7d2c65bc6250ff
[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" "9fb3c7576869b5e31a91f67f64cae24a2b4394074ffc32d92d7d2c65bc6250ff", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/metrics_exporter_log-414a9373ae54fe7d)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests metrics-exporter-log
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9fb3c7576869b5e31a91f67f64cae24a2b4394074ffc32d92d7d2c65bc6250ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fb3c7576869b5e31a91f67f64cae24a2b4394074ffc32d92d7d2c65bc6250ff", kill_on_drop: false }`
[INFO] [stdout] 9fb3c7576869b5e31a91f67f64cae24a2b4394074ffc32d92d7d2c65bc6250ff