[INFO] fetching crate mcping 0.2.0...
[INFO] testing mcping-0.2.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mcping 0.2.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate mcping 0.2.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mcping 0.2.0
[INFO] finished tweaking crates.io crate mcping 0.2.0
[INFO] tweaked toml for crates.io crate mcping 0.2.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate mcping 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0730b5d9b004c5b5354df44a1905a92e592e5099b7fa2b4e5c2b2002245b239d
[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" "0730b5d9b004c5b5354df44a1905a92e592e5099b7fa2b4e5c2b2002245b239d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0730b5d9b004c5b5354df44a1905a92e592e5099b7fa2b4e5c2b2002245b239d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0730b5d9b004c5b5354df44a1905a92e592e5099b7fa2b4e5c2b2002245b239d", kill_on_drop: false }`
[INFO] [stdout] 0730b5d9b004c5b5354df44a1905a92e592e5099b7fa2b4e5c2b2002245b239d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 37fa0c96c804ff59d2473786a5469b0ecfd7b6f36097ea15ef4f46b729605856
[INFO] running `Command { std: "docker" "start" "-a" "37fa0c96c804ff59d2473786a5469b0ecfd7b6f36097ea15ef4f46b729605856", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling futures-core v0.3.12
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling idna v0.2.1
[INFO] [stderr]    Compiling futures-util v0.3.12
[INFO] [stderr]    Compiling futures-channel v0.3.12
[INFO] [stderr]    Compiling url v2.2.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling resolv-conf v0.7.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling trust-dns-proto v0.20.0
[INFO] [stderr]    Compiling trust-dns-resolver v0.20.0
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling mcping v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "37fa0c96c804ff59d2473786a5469b0ecfd7b6f36097ea15ef4f46b729605856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37fa0c96c804ff59d2473786a5469b0ecfd7b6f36097ea15ef4f46b729605856", kill_on_drop: false }`
[INFO] [stdout] 37fa0c96c804ff59d2473786a5469b0ecfd7b6f36097ea15ef4f46b729605856
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 8a66c19ceb12583048912eb065eed6772e7b44c75df64e23e5f6528b942fa82c
[INFO] running `Command { std: "docker" "start" "-a" "8a66c19ceb12583048912eb065eed6772e7b44c75df64e23e5f6528b942fa82c", kill_on_drop: false }`
[INFO] [stderr]    Compiling weezl v0.1.4
[INFO] [stderr]    Compiling zeroize v0.9.3
[INFO] [stderr]    Compiling ansi_colours v1.0.2
[INFO] [stderr]    Compiling terminal_size v0.1.16
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling console v0.13.0
[INFO] [stderr]    Compiling signal-hook v0.1.17
[INFO] [stderr]    Compiling gif v0.11.1
[INFO] [stderr]    Compiling mc-legacy-formatting v0.3.1
[INFO] [stderr]    Compiling crossterm v0.18.2
[INFO] [stderr]    Compiling dialoguer v0.7.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling image v0.23.13
[INFO] [stderr]    Compiling viuer v0.2.0
[INFO] [stderr]    Compiling mcping v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 41.97s
[INFO] running `Command { std: "docker" "inspect" "8a66c19ceb12583048912eb065eed6772e7b44c75df64e23e5f6528b942fa82c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a66c19ceb12583048912eb065eed6772e7b44c75df64e23e5f6528b942fa82c", kill_on_drop: false }`
[INFO] [stdout] 8a66c19ceb12583048912eb065eed6772e7b44c75df64e23e5f6528b942fa82c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 12db84234c623e8238a1ea248a43a298b679c175aac8fc82a066b3a748d72a6c
[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" "12db84234c623e8238a1ea248a43a298b679c175aac8fc82a066b3a748d72a6c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mcping-59e374cea33bda73)
[INFO] [stderr]    Doc-tests mcping
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - get_status (line 279) - compile ... ok
[INFO] [stdout] test src/lib.rs - get_status (line 286) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.75s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "12db84234c623e8238a1ea248a43a298b679c175aac8fc82a066b3a748d72a6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12db84234c623e8238a1ea248a43a298b679c175aac8fc82a066b3a748d72a6c", kill_on_drop: false }`
[INFO] [stdout] 12db84234c623e8238a1ea248a43a298b679c175aac8fc82a066b3a748d72a6c