[INFO] fetching crate prometheus-client 0.16.0...
[INFO] checking prometheus-client-0.16.0 against master#4c5f6e6277b89e47d73a192078697f7a5f3dc0ac for pr-97086
[INFO] extracting crate prometheus-client 0.16.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate prometheus-client 0.16.0 on toolchain 4c5f6e6277b89e47d73a192078697f7a5f3dc0ac
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4c5f6e6277b89e47d73a192078697f7a5f3dc0ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prometheus-client 0.16.0
[INFO] finished tweaking crates.io crate prometheus-client 0.16.0
[INFO] tweaked toml for crates.io crate prometheus-client 0.16.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate prometheus-client 0.16.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4c5f6e6277b89e47d73a192078697f7a5f3dc0ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const_fn v0.4.6
[INFO] [stderr]   Downloaded async-session v2.0.1
[INFO] [stderr]   Downloaded sha2 v0.9.3
[INFO] [stderr]   Downloaded tide v0.16.0
[INFO] [stderr]   Downloaded simple-mutex v1.1.5
[INFO] [stderr]   Downloaded pyo3-ffi v0.16.2
[INFO] [stderr]   Downloaded pyo3-build-config v0.16.2
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.16.2
[INFO] [stderr]   Downloaded prometheus-client-derive-text-encode v0.2.0
[INFO] [stderr]   Downloaded http-client v6.3.5
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.1
[INFO] [stderr]   Downloaded memoffset v0.6.3
[INFO] [stderr]   Downloaded async-dup v1.2.2
[INFO] [stderr]   Downloaded unindent v0.1.8
[INFO] [stderr]   Downloaded pyo3-macros v0.16.2
[INFO] [stderr]   Downloaded async-sse v4.1.0
[INFO] [stderr]   Downloaded sval v1.0.0-alpha.5
[INFO] [stderr]   Downloaded route-recognizer v0.2.0
[INFO] [stderr]   Downloaded dtoa v1.0.1
[INFO] [stderr]   Downloaded async-h1 v2.3.2
[INFO] [stderr]   Downloaded httparse v1.3.6
[INFO] [stderr]   Downloaded nb-connect v1.1.0
[INFO] [stderr]   Downloaded vec-arena v1.1.0
[INFO] [stderr]   Downloaded indoc v1.0.4
[INFO] [stderr]   Downloaded femme v2.1.1
[INFO] [stderr]   Downloaded serde_qs v0.7.2
[INFO] [stderr]   Downloaded pyo3 v0.16.2
[INFO] [stderr]   Downloaded byte-pool v0.2.3
[INFO] [stderr]   Downloaded http-types v2.10.0
[INFO] [stderr]   Downloaded plotters v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+4c5f6e6277b89e47d73a192078697f7a5f3dc0ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fe251060eb63f8d69d8d9fa9af15e1585bc69c9a9b032ac7fe3ffbda50b8f95
[INFO] running `Command { std: "docker" "start" "-a" "0fe251060eb63f8d69d8d9fa9af15e1585bc69c9a9b032ac7fe3ffbda50b8f95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fe251060eb63f8d69d8d9fa9af15e1585bc69c9a9b032ac7fe3ffbda50b8f95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fe251060eb63f8d69d8d9fa9af15e1585bc69c9a9b032ac7fe3ffbda50b8f95", kill_on_drop: false }`
[INFO] [stdout] 0fe251060eb63f8d69d8d9fa9af15e1585bc69c9a9b032ac7fe3ffbda50b8f95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+4c5f6e6277b89e47d73a192078697f7a5f3dc0ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5f73fa09e5b43756a617d89edbcd482cac53de1f641508d90b8f7864492b591
[INFO] running `Command { std: "docker" "start" "-a" "c5f73fa09e5b43756a617d89edbcd482cac53de1f641508d90b8f7864492b591", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 libc v0.2.93
[INFO] [stderr]     Checking cfg-if v1.0.0
[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 v2.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking sval v1.0.0-alpha.5
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking vec-arena v1.1.0
[INFO] [stderr]    Compiling pyo3-build-config v0.16.2
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling signal-hook v0.3.8
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]    Compiling const_fn v0.4.6
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking cpuid-bool v0.2.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling http-types v2.10.0
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling async-trait v0.1.48
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking infer v0.2.3
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling httparse v1.3.6
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking plotters-backend v0.3.0
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling unindent v0.1.8
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking dtoa v1.0.1
[INFO] [stderr]     Checking route-recognizer v0.2.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]     Checking simple-mutex v1.1.5
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr] error: could not compile `httparse`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/httparse-1.3.6/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=4d45558218f7d966 -C extra-filename=-4d45558218f7d966 --out-dir /opt/rustwide/target/debug/build/httparse-4d45558218f7d966 -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: could not compile `const_fn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/const_fn-0.4.6/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=ba43007dfcdf90aa -C extra-filename=-ba43007dfcdf90aa --out-dir /opt/rustwide/target/debug/build/const_fn-ba43007dfcdf90aa -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `anyhow`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/anyhow-1.0.40/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=96cd72d37198b8be -C extra-filename=-96cd72d37198b8be --out-dir /opt/rustwide/target/debug/build/anyhow-96cd72d37198b8be -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `pyo3-build-config`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pyo3-build-config-0.16.2/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="resolve-config"' -C metadata=f496f8727b067083 -C extra-filename=-f496f8727b067083 --out-dir /opt/rustwide/target/debug/build/pyo3-build-config-f496f8727b067083 -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `semver-parser`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name semver_parser /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/semver-parser-0.7.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=8fcb85df1b1460b9 -C extra-filename=-8fcb85df1b1460b9 --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] error: could not compile `serde_json`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_json-1.0.64/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=041a93c2934302c6 -C extra-filename=-041a93c2934302c6 --out-dir /opt/rustwide/target/debug/build/serde_json-041a93c2934302c6 -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `base64`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name base64 --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/base64-0.12.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=08a56ae68f53acff -C extra-filename=-08a56ae68f53acff --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] error: could not compile `bitflags`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bitflags-1.2.1/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=e7f4899e62da0372 -C extra-filename=-e7f4899e62da0372 --out-dir /opt/rustwide/target/debug/build/bitflags-e7f4899e62da0372 -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not compile `sval`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name sval --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/sval-1.0.0-alpha.5/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="fmt"' --cfg 'feature="std"' -C metadata=1bf4d6f068e66d54 -C extra-filename=-1bf4d6f068e66d54 --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] running `Command { std: "docker" "inspect" "c5f73fa09e5b43756a617d89edbcd482cac53de1f641508d90b8f7864492b591", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5f73fa09e5b43756a617d89edbcd482cac53de1f641508d90b8f7864492b591", kill_on_drop: false }`
[INFO] [stdout] c5f73fa09e5b43756a617d89edbcd482cac53de1f641508d90b8f7864492b591