[INFO] fetching crate prometheus-static-metric 0.5.0...
[INFO] testing prometheus-static-metric-0.5.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate prometheus-static-metric 0.5.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate prometheus-static-metric 0.5.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prometheus-static-metric 0.5.0
[INFO] finished tweaking crates.io crate prometheus-static-metric 0.5.0
[INFO] tweaked toml for crates.io crate prometheus-static-metric 0.5.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate prometheus-static-metric 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a83e59c8fa2875f3c54cf60bf3fcc924666966ad687354bb65a8dffea7ebeaa0
[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" "a83e59c8fa2875f3c54cf60bf3fcc924666966ad687354bb65a8dffea7ebeaa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a83e59c8fa2875f3c54cf60bf3fcc924666966ad687354bb65a8dffea7ebeaa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a83e59c8fa2875f3c54cf60bf3fcc924666966ad687354bb65a8dffea7ebeaa0", kill_on_drop: false }`
[INFO] [stdout] a83e59c8fa2875f3c54cf60bf3fcc924666966ad687354bb65a8dffea7ebeaa0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] fc7a13604d0750eacb5ce5d32d139d5a20ec01e476b3168c43db0d6f173271bb
[INFO] running `Command { std: "docker" "start" "-a" "fc7a13604d0750eacb5ce5d32d139d5a20ec01e476b3168c43db0d6f173271bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling prometheus-static-metric v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.64s
[INFO] running `Command { std: "docker" "inspect" "fc7a13604d0750eacb5ce5d32d139d5a20ec01e476b3168c43db0d6f173271bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc7a13604d0750eacb5ce5d32d139d5a20ec01e476b3168c43db0d6f173271bb", kill_on_drop: false }`
[INFO] [stdout] fc7a13604d0750eacb5ce5d32d139d5a20ec01e476b3168c43db0d6f173271bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67b5ef002c47b8d6d211b32a716730c7ae35dbe5afb518310aa2bb645d2ea7a1
[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" "67b5ef002c47b8d6d211b32a716730c7ae35dbe5afb518310aa2bb645d2ea7a1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling smallvec v1.5.1
[INFO] [stderr]    Compiling prometheus v0.11.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling parking_lot_core v0.8.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling prometheus-static-metric v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `prometheus-static-metric`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name make_auto_flush_static_counter examples/make_auto_flush_static_counter.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=6fb49d159f3118a9 -C extra-filename=-6fb49d159f3118a9 --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-14fb8c8e45ff3aa1.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-7895c92c6d278491.rlib --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-b8449736663a1660.rlib --extern prometheus=/opt/rustwide/target/debug/deps/libprometheus-5732e0ecbfd9cd5a.rlib --extern prometheus_static_metric=/opt/rustwide/target/debug/deps/libprometheus_static_metric-368b37da09bec3e7.so --extern quote=/opt/rustwide/target/debug/deps/libquote-ac1b49ec88ef2fec.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-dd49894a2be7826f.rlib --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" "67b5ef002c47b8d6d211b32a716730c7ae35dbe5afb518310aa2bb645d2ea7a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67b5ef002c47b8d6d211b32a716730c7ae35dbe5afb518310aa2bb645d2ea7a1", kill_on_drop: false }`
[INFO] [stdout] 67b5ef002c47b8d6d211b32a716730c7ae35dbe5afb518310aa2bb645d2ea7a1