[INFO] fetching crate gitcube 0.1.0...
[INFO] checking gitcube-0.1.0 against master#7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 for pr-85387
[INFO] extracting crate gitcube 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate gitcube 0.1.0 on toolchain 7dc9ff5c629753b6930ecfe9a0446538b8e25fb7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gitcube 0.1.0
[INFO] finished tweaking crates.io crate gitcube 0.1.0
[INFO] tweaked toml for crates.io crate gitcube 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4d6bf30fe27f40a4b360cd9ca768b57ddc662f42b17f630282888ce3f8fa988
[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" "b4d6bf30fe27f40a4b360cd9ca768b57ddc662f42b17f630282888ce3f8fa988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4d6bf30fe27f40a4b360cd9ca768b57ddc662f42b17f630282888ce3f8fa988", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4d6bf30fe27f40a4b360cd9ca768b57ddc662f42b17f630282888ce3f8fa988", kill_on_drop: false }`
[INFO] [stdout] b4d6bf30fe27f40a4b360cd9ca768b57ddc662f42b17f630282888ce3f8fa988
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb8a5bd6a8818fe5bd4ccdf8f0ead1b46a58240869941a0f5002f098f03806a2
[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" "fb8a5bd6a8818fe5bd4ccdf8f0ead1b46a58240869941a0f5002f098f03806a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.24.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking rustc-demangle v0.1.19
[INFO] [stderr]     Checking object v0.24.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking cpuid-bool v0.2.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking unic-common v0.7.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking unic-char-range v0.7.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling v_htmlescape v0.4.5
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]    Compiling nix v0.11.1
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking deunicode v0.4.3
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking humansize v1.1.1
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling actix-web v0.7.19
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking encoding-index-japanese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-korean v1.20141219.5
[INFO] [stderr]     Checking encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]     Checking encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking unic-ucd-version v0.7.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking unic-char-property v0.7.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking slug v0.1.4
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking unic-ucd-segment v0.7.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking unicode-normalization v0.1.18
[INFO] [stderr]     Checking encoding v0.2.33
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking cipher v0.2.5
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking universal-hash v0.4.0
[INFO] [stderr]     Checking crypto-mac v0.10.0
[INFO] [stderr]     Checking aead v0.3.2
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking unic-segment v0.7.0
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking aes-soft v0.6.4
[INFO] [stderr]     Checking ctr v0.6.0
[INFO] [stderr]     Checking polyval v0.4.5
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking ghash v0.3.1
[INFO] [stderr]     Checking hkdf v0.10.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aes v0.6.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking tower-service v0.1.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking aes-gcm v0.8.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking atoi v0.2.4
[INFO] [stderr]     Checking checked v0.5.0
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking rand_chacha v0.3.0
[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-0.5.6/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=c0f947f401245750 -C extra-filename=-c0f947f401245750 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ucd_util=/opt/rustwide/target/debug/deps/libucd_util-3db3f8f5890237a1.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 `Command { std: "docker" "inspect" "fb8a5bd6a8818fe5bd4ccdf8f0ead1b46a58240869941a0f5002f098f03806a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb8a5bd6a8818fe5bd4ccdf8f0ead1b46a58240869941a0f5002f098f03806a2", kill_on_drop: false }`
[INFO] [stdout] fb8a5bd6a8818fe5bd4ccdf8f0ead1b46a58240869941a0f5002f098f03806a2