[INFO] fetching crate prometheus_dhcp_exporter 0.1.0...
[INFO] building prometheus_dhcp_exporter-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate prometheus_dhcp_exporter 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate prometheus_dhcp_exporter 0.1.0
[INFO] finished tweaking crates.io crate prometheus_dhcp_exporter 0.1.0
[INFO] tweaked toml for crates.io crate prometheus_dhcp_exporter 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate prometheus_dhcp_exporter 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 227 packages to latest compatible versions
[INFO] [stderr]       Adding actix v0.7.9 (available: v0.13.5)
[INFO] [stderr]       Adding actix-web v0.7.19 (available: v4.11.0)
[INFO] [stderr]       Adding clap v2.34.0 (available: v4.5.48)
[INFO] [stderr]       Adding env_logger v0.6.2 (available: v0.11.8)
[INFO] [stderr]       Adding futures v0.1.31 (available: v0.3.31)
[INFO] [stderr]       Adding subtle v2.4.1 (available: v2.6.1)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39204b910c7975ce892ddda4820438fd9fc2f20622594babb2774bdc42da32cd
[INFO] running `Command { std: "docker" "start" "-a" "39204b910c7975ce892ddda4820438fd9fc2f20622594babb2774bdc42da32cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39204b910c7975ce892ddda4820438fd9fc2f20622594babb2774bdc42da32cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39204b910c7975ce892ddda4820438fd9fc2f20622594babb2774bdc42da32cd", kill_on_drop: false }`
[INFO] [stdout] 39204b910c7975ce892ddda4820438fd9fc2f20622594babb2774bdc42da32cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d0fa5217f22a5db12b9626f297775016c64ee18deeef7763bfd03f7cde6a3e0
[INFO] running `Command { std: "docker" "start" "-a" "5d0fa5217f22a5db12b9626f297775016c64ee18deeef7763bfd03f7cde6a3e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling lazy_static v1.5.0
[INFO] [stderr]    Compiling futures v0.1.31
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling slab v0.4.11
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling tinyvec v1.10.0
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]    Compiling smallvec v0.6.14
[INFO] [stderr]    Compiling encoding-index-korean v1.20141219.5
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.24
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.18
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling gimli v0.32.3
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling encoding v0.2.33
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rustc-demangle v0.1.26
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling net2 v0.2.39
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling opaque-debug v0.3.1
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling cipher v0.2.5
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr] error: could not compile `object` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/bin/rustc --crate-name object --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/object-0.37.3/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 '--allow=clippy::uninlined_format_args' '--allow=clippy::type_complexity' '--allow=clippy::single_match' '--allow=clippy::should_implement_trait' '--allow=clippy::result_unit_err' '--allow=clippy::needless_lifetimes' '--allow=clippy::match_like_matches_macro' '--allow=clippy::manual_flatten' '--allow=clippy::field_reassign_with_default' '--allow=clippy::comparison_chain' '--allow=clippy::collapsible_match' '--allow=clippy::collapsible_if' '--allow=clippy::collapsible_else_if' --cfg 'feature="archive"' --cfg 'feature="coff"' --cfg 'feature="elf"' --cfg 'feature="macho"' --cfg 'feature="pe"' --cfg 'feature="read_core"' --cfg 'feature="unaligned"' --cfg 'feature="xcoff"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("all", "alloc", "archive", "build", "build_core", "cargo-all", "coff", "compression", "core", "default", "doc", "elf", "macho", "pe", "read", "read_core", "rustc-dep-of-std", "std", "unaligned", "unstable", "unstable-all", "wasm", "write", "write_core", "write_std", "xcoff"))' -C metadata=51213cb78a582b5f -C extra-filename=-eea85a9aaab5478d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-5fd09d2ea5922a66.rmeta --cap-lints allow --cap-lints=forbid --cfg core_error --check-cfg 'cfg(core_error)'` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5d0fa5217f22a5db12b9626f297775016c64ee18deeef7763bfd03f7cde6a3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d0fa5217f22a5db12b9626f297775016c64ee18deeef7763bfd03f7cde6a3e0", kill_on_drop: false }`
[INFO] [stdout] 5d0fa5217f22a5db12b9626f297775016c64ee18deeef7763bfd03f7cde6a3e0