[INFO] fetching crate prometheus_wireguard_exporter 3.5.1...
[INFO] testing prometheus_wireguard_exporter-3.5.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate prometheus_wireguard_exporter 3.5.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate prometheus_wireguard_exporter 3.5.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/.cargo/config.toml
[INFO] started tweaking crates.io crate prometheus_wireguard_exporter 3.5.1
[INFO] finished tweaking crates.io crate prometheus_wireguard_exporter 3.5.1
[INFO] tweaked toml for crates.io crate prometheus_wireguard_exporter 3.5.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate prometheus_wireguard_exporter 3.5.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hyper v0.14.10
[INFO] [stderr]   Downloaded tokio v1.8.1
[INFO] [stderr]   Downloaded prometheus_exporter_base v1.2.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cef6fded430a7f6c4d7d94e0626ff8abbdd6922f8c86a18a31516a5482153889
[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" "cef6fded430a7f6c4d7d94e0626ff8abbdd6922f8c86a18a31516a5482153889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cef6fded430a7f6c4d7d94e0626ff8abbdd6922f8c86a18a31516a5482153889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cef6fded430a7f6c4d7d94e0626ff8abbdd6922f8c86a18a31516a5482153889", kill_on_drop: false }`
[INFO] [stdout] cef6fded430a7f6c4d7d94e0626ff8abbdd6922f8c86a18a31516a5482153889
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "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] afaacdbe0b178198d325b604886a708a4278bb9139e9a1ce8122bfb34f60a290
[INFO] running `Command { std: "docker" "start" "-a" "afaacdbe0b178198d325b604886a708a4278bb9139e9a1ce8122bfb34f60a290", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling http-body v0.4.2
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling sct v0.6.1
[INFO] [stderr]    Compiling webpki v0.21.4
[INFO] [stderr]    Compiling ct-logs v0.8.0
[INFO] [stderr]    Compiling rustls v0.19.1
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling rustls-native-certs v0.5.0
[INFO] [stderr]    Compiling tokio-rustls v0.22.0
[INFO] [stderr]    Compiling hyper v0.14.10
[INFO] [stderr]    Compiling hyper-rustls v0.22.1
[INFO] [stderr]    Compiling prometheus_exporter_base v1.2.0
[INFO] [stderr]    Compiling prometheus_wireguard_exporter v3.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.78s
[INFO] running `Command { std: "docker" "inspect" "afaacdbe0b178198d325b604886a708a4278bb9139e9a1ce8122bfb34f60a290", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afaacdbe0b178198d325b604886a708a4278bb9139e9a1ce8122bfb34f60a290", kill_on_drop: false }`
[INFO] [stdout] afaacdbe0b178198d325b604886a708a4278bb9139e9a1ce8122bfb34f60a290
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b64070499215996361cfaf48ca882d8d7e4f745aa67493f57a695ac0c9daef9a
[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" "b64070499215996361cfaf48ca882d8d7e4f745aa67493f57a695ac0c9daef9a", kill_on_drop: false }`
[INFO] [stderr] warning: prometheus_wireguard_exporter v3.5.1 (/opt/rustwide/workdir) ignoring invalid dependency `clippy` which is missing a lib target
[INFO] [stderr]    Compiling prometheus_wireguard_exporter v3.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.67s
[INFO] running `Command { std: "docker" "inspect" "b64070499215996361cfaf48ca882d8d7e4f745aa67493f57a695ac0c9daef9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b64070499215996361cfaf48ca882d8d7e4f745aa67493f57a695ac0c9daef9a", kill_on_drop: false }`
[INFO] [stdout] b64070499215996361cfaf48ca882d8d7e4f745aa67493f57a695ac0c9daef9a
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 27ad10339094f5221392949c5a1f18ba89827ac90ddbef7af110ee96b348b79e
[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" "27ad10339094f5221392949c5a1f18ba89827ac90ddbef7af110ee96b348b79e", kill_on_drop: false }`
[INFO] [stderr] warning: prometheus_wireguard_exporter v3.5.1 (/opt/rustwide/workdir) ignoring invalid dependency `clippy` which is missing a lib target
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/prometheus_wireguard_exporter-fb32d87659ebcb05)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test wireguard_config::tests::test_parse_ok ... ok
[INFO] [stdout] test wireguard_config::tests::test_from_pound_line_to_key_value ... ok
[INFO] [stdout] test wireguard_config::tests::test_parse_friendly_description_name ... ok
[INFO] [stdout] test wireguard::tests::test_render_to_prometheus_complex ... ok
[INFO] [stdout] test wireguard::tests::test_render_to_prometheus_simple ... ok
[INFO] [stdout] test wireguard_config::tests::test_parse_friendly_description_json ... ok
[INFO] [stdout] test wireguard::tests::test_parse_issue_19 ... ok
[INFO] [stdout] test wireguard::tests::test_parse ... ok
[INFO] [stdout] test wireguard::tests::test_parse_and_serialize ... ok
[INFO] [stdout] test wireguard_config::tests::test_parse_no_allowed_ips - should panic ... ok
[INFO] [stdout] test wireguard_config::tests::test_parse_no_public_key - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "27ad10339094f5221392949c5a1f18ba89827ac90ddbef7af110ee96b348b79e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27ad10339094f5221392949c5a1f18ba89827ac90ddbef7af110ee96b348b79e", kill_on_drop: false }`
[INFO] [stdout] 27ad10339094f5221392949c5a1f18ba89827ac90ddbef7af110ee96b348b79e