[INFO] updating cached repository https://github.com/poanetwork/poa-ballot-stats
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 527d4070637fcfc850afe25478f0afa1e5910255
[INFO] testing poanetwork/poa-ballot-stats against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpoanetwork%2Fpoa-ballot-stats" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/poanetwork/poa-ballot-stats on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/poanetwork/poa-ballot-stats
[INFO] finished tweaking git repo https://github.com/poanetwork/poa-ballot-stats
[INFO] tweaked toml for git repo https://github.com/poanetwork/poa-ballot-stats written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/poanetwork/poa-ballot-stats already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stdout] fde8019f83c321fb8b922af7ea10fb09fd32350c0cf050c7576b55b2cb3384f6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "fde8019f83c321fb8b922af7ea10fb09fd32350c0cf050c7576b55b2cb3384f6"`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling futures v0.1.25
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling serde v1.0.82
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling rustc-hex v2.0.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling indexmap v1.0.2
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling try-lock v0.2.2
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling ethabi-contract v6.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.3
[INFO] [stderr]    Compiling rand_xorshift v0.1.0
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling base64 v0.10.0
[INFO] [stderr]    Compiling colored v1.6.1
[INFO] [stderr]    Compiling arrayvec v0.4.8
[INFO] [stderr]    Compiling openssl-sys v0.9.39
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]    Compiling smallvec v0.6.7
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling tiny-keccak v1.4.2
[INFO] [stderr]    Compiling uint v0.4.1
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling bytes v0.4.11
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling tokio-executor v0.1.5
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling tokio-timer v0.1.2
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling crossbeam-deque v0.6.2
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling fixed-hash v0.2.5
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling tokio-current-thread v0.1.4
[INFO] [stderr]    Compiling tokio-timer v0.2.8
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling tokio-io v0.1.10
[INFO] [stderr]    Compiling http v0.1.14
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling backtrace v0.3.12
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]    Compiling tokio-reactor v0.1.7
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.4
[INFO] [stderr] error: could not compile `http`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name http /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/http-0.1.14/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 -C metadata=8fb5231b44410c87 -C extra-filename=-8fb5231b44410c87 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-d28f2c204cae739e.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-5eb3a865ee06cdd3.rmeta --extern itoa=/opt/rustwide/target/debug/deps/libitoa-6c514d0363297749.rmeta --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 `uint`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name uint /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/uint-0.4.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="heapsize"' --cfg 'feature="heapsizeof"' --cfg 'feature="std"' -C metadata=3d5d701332ed0a25 -C extra-filename=-3d5d701332ed0a25 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-51c66a58dc7dd7fd.rmeta --extern crunchy=/opt/rustwide/target/debug/deps/libcrunchy-cc7b007b19dcde7b.rmeta --extern heapsize=/opt/rustwide/target/debug/deps/libheapsize-5347c96d137e402e.rmeta --extern rustc_hex=/opt/rustwide/target/debug/deps/librustc_hex-c114325460ca1a61.rmeta --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 `clap`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name clap /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.32.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="ansi_term"' --cfg 'feature="atty"' --cfg 'feature="color"' --cfg 'feature="default"' --cfg 'feature="strsim"' --cfg 'feature="suggestions"' --cfg 'feature="vec_map"' -C metadata=e08a13b561c3dac4 -C extra-filename=-e08a13b561c3dac4 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-0d3bacace01cab89.rmeta --extern atty=/opt/rustwide/target/debug/deps/libatty-acc56bb886c58797.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-f26c1cc2a800726e.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-57259db7c4c93446.rmeta --extern textwrap=/opt/rustwide/target/debug/deps/libtextwrap-56911033cc87368c.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-f78fbbd60dd7eb4c.rmeta --extern vec_map=/opt/rustwide/target/debug/deps/libvec_map-0124ff4ac8afcced.rmeta --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 `serde`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.82/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=5820304cd23a72b0 -C extra-filename=-5820304cd23a72b0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid --cfg de_boxed_c_str --cfg de_rc_dst --cfg core_duration --cfg integer128 --cfg range_inclusive --cfg num_nonzero` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `syn`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.22/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=2e5e831e7d510349 -C extra-filename=-2e5e831e7d510349 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-28cb2f69ea2af86f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c1bdadc8dc3ffa21.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-ff4fcdd9189ddc82.rmeta --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 `"docker" "inspect" "fde8019f83c321fb8b922af7ea10fb09fd32350c0cf050c7576b55b2cb3384f6"`
[INFO] running `"docker" "rm" "-f" "fde8019f83c321fb8b922af7ea10fb09fd32350c0cf050c7576b55b2cb3384f6"`
[INFO] [stdout] fde8019f83c321fb8b922af7ea10fb09fd32350c0cf050c7576b55b2cb3384f6