[INFO] cloning repository https://github.com/onur/docs.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/onur/docs.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonur%2Fdocs.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonur%2Fdocs.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cee3f821bce5e236639b2478096de0fee58b32cb
[INFO] checking onur/docs.rs against master#df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e for pr-95474
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fonur%2Fdocs.rs" "/workspace/builds/worker-18/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-18/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/onur/docs.rs on toolchain df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/onur/docs.rs
[INFO] finished tweaking git repo https://github.com/onur/docs.rs
[INFO] tweaked toml for git repo https://github.com/onur/docs.rs written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate git repo https://github.com/onur/docs.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/rust-lang/cargo.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded filetime v0.1.15
[INFO] [stderr]   Downloaded r2d2_postgres v0.14.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.37
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[INFO] [stderr]   Downloaded fallible-iterator v0.1.5
[INFO] [stderr]   Downloaded shell-escape v0.1.4
[INFO] [stderr]   Downloaded crypto-hash v0.3.1
[INFO] [stderr]   Downloaded magic v0.12.2
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[INFO] [stderr]   Downloaded handlebars v0.24.2
[INFO] [stderr]   Downloaded filetime v0.2.1
[INFO] [stderr]   Downloaded crates-index-diff v4.0.0
[INFO] [stderr]   Downloaded flate2 v1.0.3
[INFO] [stderr]   Downloaded fwdansi v1.0.1
[INFO] [stderr]   Downloaded serde_ignored v0.0.4
[INFO] [stderr]   Downloaded bytesize v1.0.0
[INFO] [stderr]   Downloaded git2-curl v0.9.0
[INFO] [stderr]   Downloaded rustfix v0.4.4
[INFO] [stderr]   Downloaded openssl v0.10.13
[INFO] [stderr]   Downloaded syn v0.15.11
[INFO] [stderr]   Downloaded comrak v0.3.1
[INFO] [stderr]   Downloaded opener v0.3.0
[INFO] [stderr]   Downloaded params v0.6.0
[INFO] [stderr]   Downloaded handlebars-iron v0.22.0
[INFO] [stderr]   Downloaded magic-sys v0.2.0
[INFO] [stderr]   Downloaded libz-sys v1.0.24
[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.0
[INFO] [stderr]   Downloaded curl-sys v0.4.15
[INFO] [stderr]   Downloaded sass-sys v0.4.7
[INFO] [stderr]   Downloaded ignore v0.4.4
[INFO] [stderr]   Downloaded im-rc v12.2.0
[INFO] [stderr]   Downloaded sass-rs v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e39f222883309045baa86122bd1ea976870dbb26027f7cb9c707af0d1bc412b6
[INFO] running `Command { std: "docker" "start" "-a" "e39f222883309045baa86122bd1ea976870dbb26027f7cb9c707af0d1bc412b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e39f222883309045baa86122bd1ea976870dbb26027f7cb9c707af0d1bc412b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e39f222883309045baa86122bd1ea976870dbb26027f7cb9c707af0d1bc412b6", kill_on_drop: false }`
[INFO] [stdout] e39f222883309045baa86122bd1ea976870dbb26027f7cb9c707af0d1bc412b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+df20355fa9fa5e9fb89be4e4bfee8a643bb7a23e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 158932c0ad4a29eb29ae5787faf5e5d16481a536477330b8fff4a460641b0407
[INFO] running `Command { std: "docker" "start" "-a" "158932c0ad4a29eb29ae5787faf5e5d16481a536477330b8fff4a460641b0407", 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]     Checking libc v0.2.43
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling serde v1.0.84
[INFO] [stderr]     Checking byteorder v1.2.6
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking slab v0.4.1
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[INFO] [stderr]     Checking lazycell v1.2.0
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking utf8-ranges v1.0.1
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling openssl v0.10.13
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]     Checking arrayref v0.3.5
[INFO] [stderr]     Checking byte-tools v0.2.0
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[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling build_const v0.2.1
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[INFO] [stderr]    Compiling native-tls v0.2.1
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[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking string v0.1.1
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking md5 v0.3.8
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking fallible-iterator v0.1.5
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking hex v0.2.0
[INFO] [stderr]    Compiling magic-sys v0.2.0
[INFO] [stderr]     Checking antidote v1.0.0
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking safemem v0.3.0
[INFO] [stderr]     Checking same-file v1.0.3
[INFO] [stderr]     Checking utf-8 v0.7.4
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling encoding_rs v0.8.10
[INFO] [stderr]     Checking termcolor v1.0.4
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking strsim v0.7.0
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[INFO] [stderr]     Checking pest v0.3.3
[INFO] [stderr]     Checking sequence_trie v0.2.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking unicode_categories v0.1.1
[INFO] [stderr]     Checking glob v0.2.11
[INFO] [stderr]     Checking route-recognizer v0.1.12
[INFO] [stderr]     Checking rustc-workspace-hack v1.0.0
[INFO] [stderr]     Checking bytesize v1.0.0
[INFO] [stderr]     Checking typed-arena v1.4.1
[INFO] [stderr]     Checking home v0.3.3
[INFO] [stderr]     Checking shell-escape v0.1.4
[INFO] [stderr]     Checking unidecode v0.2.0
[INFO] [stderr]     Checking entities v1.0.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.6.1
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking stb_truetype v0.2.4
[INFO] [stderr]    Compiling rand v0.4.3
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking socket2 v0.3.8
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking filetime v0.2.1
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking filetime v0.1.15
[INFO] [stderr]     Checking base64 v0.6.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking walkdir v2.2.5
[INFO] [stderr]     Checking scheduled-thread-pool v0.2.0
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling memchr v2.1.0
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking new_debug_unreachable v1.0.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking jobserver v0.1.11
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking tar v0.4.20
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking tokio-executor v0.1.5
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking bytes v0.4.10
[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking r2d2 v0.8.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]     Checking crossbeam-epoch v0.6.0
[INFO] [stderr]     Checking magic v0.12.2
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]    Compiling sass-sys v0.4.7
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]     Checking tokio-timer v0.2.7
[INFO] [stderr]     Checking tokio-current-thread v0.1.3
[INFO] [stderr]     Checking tendril v0.4.0
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]     Checking slug v0.1.1
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]    Compiling openssl-sys v0.9.37
[INFO] [stderr]    Compiling libz-sys v1.0.24
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.0
[INFO] [stderr]    Compiling curl-sys v0.4.15
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling libgit2-sys v0.7.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]     Checking crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling string_cache_codegen v0.4.1
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]     Checking libflate v0.1.18
[INFO] [stderr]    Compiling syn v0.15.11
[INFO] [stderr]     Checking mime v0.3.9
[INFO] [stderr]     Checking tokio-io v0.1.9
[INFO] [stderr]     Checking http v0.1.13
[INFO] [stderr]     Checking phf v0.7.21
[INFO] [stderr]    Compiling mime_guess v1.8.6
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking ordered-float v1.0.1
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking approx v0.3.0
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking aho-corasick v0.6.8
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking crypto-mac v0.5.2
[INFO] [stderr]     Checking rusttype v0.7.2
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.7
[INFO] [stderr]     Checking uuid v0.7.1
[INFO] [stderr]     Checking tempfile v3.0.4
[INFO] [stderr]     Checking hmac v0.5.0
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking serde_json v0.8.6
[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,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 -C metadata=e26c06fcbcacd117 -C extra-filename=-e26c06fcbcacd117 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ucd_util=/opt/rustwide/target/debug/deps/libucd_util-eb04546699b803c6.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "158932c0ad4a29eb29ae5787faf5e5d16481a536477330b8fff4a460641b0407", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "158932c0ad4a29eb29ae5787faf5e5d16481a536477330b8fff4a460641b0407", kill_on_drop: false }`
[INFO] [stdout] 158932c0ad4a29eb29ae5787faf5e5d16481a536477330b8fff4a460641b0407