[INFO] fetching crate prometheus-static-metric 0.5.1...
[INFO] testing prometheus-static-metric-0.5.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate prometheus-static-metric 0.5.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate prometheus-static-metric 0.5.1 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] started tweaking crates.io crate prometheus-static-metric 0.5.1
[INFO] finished tweaking crates.io crate prometheus-static-metric 0.5.1
[INFO] tweaked toml for crates.io crate prometheus-static-metric 0.5.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate prometheus-static-metric 0.5.1 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 tinytemplate v1.2.0
[INFO] [stderr]   Downloaded protobuf v2.20.0
[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] aade6928a46e6ae4220c3f69c0ec490e96da9e36755cc110e5c2aa294aa78bce
[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" "aade6928a46e6ae4220c3f69c0ec490e96da9e36755cc110e5c2aa294aa78bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aade6928a46e6ae4220c3f69c0ec490e96da9e36755cc110e5c2aa294aa78bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aade6928a46e6ae4220c3f69c0ec490e96da9e36755cc110e5c2aa294aa78bce", kill_on_drop: false }`
[INFO] [stdout] aade6928a46e6ae4220c3f69c0ec490e96da9e36755cc110e5c2aa294aa78bce
[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] a1aff6c1b917b95484cc7d6b08166302c5b557f972e545e3844ee1a4023f78b2
[INFO] running `Command { std: "docker" "start" "-a" "a1aff6c1b917b95484cc7d6b08166302c5b557f972e545e3844ee1a4023f78b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling prometheus-static-metric v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `span`
[INFO] [stdout]   --> src/parser.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub span: Span,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "a1aff6c1b917b95484cc7d6b08166302c5b557f972e545e3844ee1a4023f78b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1aff6c1b917b95484cc7d6b08166302c5b557f972e545e3844ee1a4023f78b2", kill_on_drop: false }`
[INFO] [stdout] a1aff6c1b917b95484cc7d6b08166302c5b557f972e545e3844ee1a4023f78b2
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0bb954a41727ff9c868013a15505553fc850edcbe8dd145a8e51f63770982d8a
[INFO] running `Command { std: "docker" "start" "-a" "0bb954a41727ff9c868013a15505553fc850edcbe8dd145a8e51f63770982d8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling protobuf v2.20.0
[INFO] [stderr]    Compiling prometheus v0.11.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stdout] warning: field is never read: `span`
[INFO] [stdout]   --> src/parser.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub span: Span,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling tinytemplate v1.2.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling prometheus-static-metric v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `span`
[INFO] [stdout]   --> src/parser.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub span: Span,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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 metric tests/metric.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' -C metadata=a0e2be53e0d31e0e -C extra-filename=-a0e2be53e0d31e0e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-eb7494c550c85182.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-86422d76b8bd90ed.rlib --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-4d038e1ab37629ce.rlib --extern prometheus=/opt/rustwide/target/debug/deps/libprometheus-004f71038978b75e.rlib --extern prometheus_static_metric=/opt/rustwide/target/debug/deps/libprometheus_static_metric-c985a45caaf8513b.so --extern quote=/opt/rustwide/target/debug/deps/libquote-4c5a9e80828de3e7.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-5ad9d3ca9f3bcffd.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" "0bb954a41727ff9c868013a15505553fc850edcbe8dd145a8e51f63770982d8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bb954a41727ff9c868013a15505553fc850edcbe8dd145a8e51f63770982d8a", kill_on_drop: false }`
[INFO] [stdout] 0bb954a41727ff9c868013a15505553fc850edcbe8dd145a8e51f63770982d8a