[INFO] fetching crate open-metrics-client 0.11.2...
[INFO] testing open-metrics-client-0.11.2 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate open-metrics-client 0.11.2 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate open-metrics-client 0.11.2 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate open-metrics-client 0.11.2
[INFO] finished tweaking crates.io crate open-metrics-client 0.11.2
[INFO] tweaked toml for crates.io crate open-metrics-client 0.11.2 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate open-metrics-client 0.11.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 099519d38c70d40f60b060f2c8e06e5f70c4d96773c86a3e0ade90b6a1ec9ac4
[INFO] running `Command { std: "docker" "start" "-a" "099519d38c70d40f60b060f2c8e06e5f70c4d96773c86a3e0ade90b6a1ec9ac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "099519d38c70d40f60b060f2c8e06e5f70c4d96773c86a3e0ade90b6a1ec9ac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "099519d38c70d40f60b060f2c8e06e5f70c4d96773c86a3e0ade90b6a1ec9ac4", kill_on_drop: false }`
[INFO] [stdout] 099519d38c70d40f60b060f2c8e06e5f70c4d96773c86a3e0ade90b6a1ec9ac4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19758ea0661f9e2ccc7d564c55e894f1c49740eaf33135caa33faa526cc17edd
[INFO] running `Command { std: "docker" "start" "-a" "19758ea0661f9e2ccc7d564c55e894f1c49740eaf33135caa33faa526cc17edd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling open-metrics-client-derive-text-encode v0.1.1
[INFO] [stderr]    Compiling open-metrics-client v0.11.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.93s
[INFO] running `Command { std: "docker" "inspect" "19758ea0661f9e2ccc7d564c55e894f1c49740eaf33135caa33faa526cc17edd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19758ea0661f9e2ccc7d564c55e894f1c49740eaf33135caa33faa526cc17edd", kill_on_drop: false }`
[INFO] [stdout] 19758ea0661f9e2ccc7d564c55e894f1c49740eaf33135caa33faa526cc17edd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33f371efb427fd4132dfe58c5f600f548f495fded642a802aaec1842264a65bb
[INFO] running `Command { std: "docker" "start" "-a" "33f371efb427fd4132dfe58c5f600f548f495fded642a802aaec1842264a65bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling sval v1.0.0-alpha.5
[INFO] [stderr]    Compiling futures-core v0.3.14
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling futures-io v0.3.14
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling fastrand v1.4.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling vec-arena v1.1.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling signal-hook v0.3.8
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling const_fn v0.4.6
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling cpuid-bool v0.2.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling http-types v2.10.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling infer v0.2.3
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling httparse v1.3.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling plotters-backend v0.3.0
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling pyo3 v0.13.2
[INFO] [stderr]    Compiling futures-task v0.3.14
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling half v1.7.1
[INFO] [stderr]    Compiling route-recognizer v0.2.0
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling async-lock v2.3.0
[INFO] [stderr]    Compiling simple-mutex v1.1.5
[INFO] [stderr]    Compiling lock_api v0.4.3
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling time v0.2.26
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling plotters-svg v0.3.0
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling async-dup v1.2.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.6
[INFO] [stderr]    Compiling pyo3-macros-backend v0.13.2
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling indoc-impl v0.3.6
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling futures-lite v1.11.3
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling unicode-normalization v0.1.17
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr] error: could not compile `regex-syntax`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name regex_syntax /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/regex-syntax-0.6.23/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=f4cc2e00eabd1f25 -C extra-filename=-f4cc2e00eabd1f25 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (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" "33f371efb427fd4132dfe58c5f600f548f495fded642a802aaec1842264a65bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33f371efb427fd4132dfe58c5f600f548f495fded642a802aaec1842264a65bb", kill_on_drop: false }`
[INFO] [stdout] 33f371efb427fd4132dfe58c5f600f548f495fded642a802aaec1842264a65bb