[INFO] fetching crate prometheus-mpd-exporter 0.1.0...
[INFO] testing prometheus-mpd-exporter-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate prometheus-mpd-exporter 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate prometheus-mpd-exporter 0.1.0 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] started tweaking crates.io crate prometheus-mpd-exporter 0.1.0
[INFO] finished tweaking crates.io crate prometheus-mpd-exporter 0.1.0
[INFO] tweaked toml for crates.io crate prometheus-mpd-exporter 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate prometheus-mpd-exporter 0.1.0 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 sha-1 v0.9.2
[INFO] [stderr]   Downloaded bytestring v0.1.5
[INFO] [stderr]   Downloaded rustls-native-certs v0.3.0
[INFO] [stderr]   Downloaded standback v0.2.14
[INFO] [stderr]   Downloaded smart-default v0.6.0
[INFO] [stderr]   Downloaded actix-router v0.2.5
[INFO] [stderr]   Downloaded parse-display v0.4.0
[INFO] [stderr]   Downloaded parse-display-derive v0.4.0
[INFO] [stderr]   Downloaded async-mpd v0.4.0
[INFO] [stderr]   Downloaded prometheus_exporter_base v1.1.0
[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] b245dbc3c1e499926374a6f5fc4df3dc46598b08dca9185cac1acc703f8d6bf6
[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" "b245dbc3c1e499926374a6f5fc4df3dc46598b08dca9185cac1acc703f8d6bf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b245dbc3c1e499926374a6f5fc4df3dc46598b08dca9185cac1acc703f8d6bf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b245dbc3c1e499926374a6f5fc4df3dc46598b08dca9185cac1acc703f8d6bf6", kill_on_drop: false }`
[INFO] [stdout] b245dbc3c1e499926374a6f5fc4df3dc46598b08dca9185cac1acc703f8d6bf6
[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] [stdout] 9df9e49293c49229fc88c14c04ee9fdeece1324c90ec45f30568ea81e86b1650
[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" "9df9e49293c49229fc88c14c04ee9fdeece1324c90ec45f30568ea81e86b1650", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling futures-lite v1.11.3
[INFO] [stderr]    Compiling polling v2.0.2
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling flate2 v1.0.19
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling env_logger v0.8.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling resolv-conf v0.7.0
[INFO] [stderr]    Compiling brotli2 v0.3.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling async-io v1.3.1
[INFO] [stderr]    Compiling tokio v0.2.24
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling async-net v1.5.0
[INFO] [stderr]    Compiling sct v0.6.0
[INFO] [stderr]    Compiling webpki v0.21.4
[INFO] [stderr]    Compiling ct-logs v0.6.0
[INFO] [stderr]    Compiling rustls v0.17.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling rustls-native-certs v0.3.0
[INFO] [stderr]    Compiling tokio-rustls v0.13.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling actix-macros v0.1.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling parse-display-derive v0.4.0
[INFO] [stderr]    Compiling smart-default v0.6.0
[INFO] [stderr]    Compiling actix-web-codegen v0.4.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr] error: could not compile `derive_more`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name derive_more --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/derive_more-0.99.11/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="add"' --cfg 'feature="add_assign"' --cfg 'feature="as_mut"' --cfg 'feature="as_ref"' --cfg 'feature="constructor"' --cfg 'feature="default"' --cfg 'feature="deref"' --cfg 'feature="deref_mut"' --cfg 'feature="display"' --cfg 'feature="error"' --cfg 'feature="from"' --cfg 'feature="from_str"' --cfg 'feature="index"' --cfg 'feature="index_mut"' --cfg 'feature="into"' --cfg 'feature="into_iterator"' --cfg 'feature="iterator"' --cfg 'feature="mul"' --cfg 'feature="mul_assign"' --cfg 'feature="not"' --cfg 'feature="sum"' --cfg 'feature="try_into"' -C metadata=5dfddf7c2ba22ba8 -C extra-filename=-5dfddf7c2ba22ba8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-4d038e1ab37629ce.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-4c5a9e80828de3e7.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-e01ea7c0949b260f.rlib --extern proc_macro --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9df9e49293c49229fc88c14c04ee9fdeece1324c90ec45f30568ea81e86b1650", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9df9e49293c49229fc88c14c04ee9fdeece1324c90ec45f30568ea81e86b1650", kill_on_drop: false }`
[INFO] [stdout] 9df9e49293c49229fc88c14c04ee9fdeece1324c90ec45f30568ea81e86b1650