[INFO] cloning repository https://github.com/coreos/fero
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/coreos/fero" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoreos%2Ffero", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoreos%2Ffero'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d69131ee1016933cb6681beade227a4aa53a282e
[INFO] documenting coreos/fero against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcoreos%2Ffero" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/coreos/fero on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/coreos/fero
[INFO] finished tweaking git repo https://github.com/coreos/fero
[INFO] tweaked toml for git repo https://github.com/coreos/fero written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/coreos/fero already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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 synstructure v0.6.1
[INFO] [stderr]   Downloaded protobuf v1.5.1
[INFO] [stderr]   Downloaded failure_derive v0.1.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.16
[INFO] [stderr]   Downloaded diesel v1.2.2
[INFO] [stderr]   Downloaded env_logger v0.4.3
[INFO] [stderr]   Downloaded md-5 v0.7.0
[INFO] [stderr]   Downloaded gag v0.1.10
[INFO] [stderr]   Downloaded clang-sys v0.21.2
[INFO] [stderr]   Downloaded cc v1.0.15
[INFO] [stderr]   Downloaded cmake v0.1.30
[INFO] [stderr]   Downloaded structopt v0.2.10
[INFO] [stderr]   Downloaded num-traits v0.2.2
[INFO] [stderr]   Downloaded rustc-demangle v0.1.7
[INFO] [stderr]   Downloaded digest v0.7.2
[INFO] [stderr]   Downloaded loggerv v0.7.1
[INFO] [stderr]   Downloaded backtrace v0.3.6
[INFO] [stderr]   Downloaded bindgen v0.32.3
[INFO] [stderr]   Downloaded num-iter v0.1.35
[INFO] [stderr]   Downloaded num-bigint v0.1.43
[INFO] [stderr]   Downloaded secstr v0.3.0
[INFO] [stderr]   Downloaded diesel_derives v1.2.0
[INFO] [stderr]   Downloaded protoc v1.5.1
[INFO] [stderr]   Downloaded libloading v0.4.3
[INFO] [stderr]   Downloaded cstr-argument v0.0.2
[INFO] [stderr]   Downloaded bzip2 v0.3.2
[INFO] [stderr]   Downloaded bit-vec v0.4.4
[INFO] [stderr]   Downloaded arrayref v0.3.4
[INFO] [stderr]   Downloaded heck v0.3.0
[INFO] [stderr]   Downloaded failure v0.1.1
[INFO] [stderr]   Downloaded structopt-derive v0.2.10
[INFO] [stderr]   Downloaded byteorder v1.2.2
[INFO] [stderr]   Downloaded ripemd160 v0.7.0
[INFO] [stderr]   Downloaded rpassword v2.0.0
[INFO] [stderr]   Downloaded base64 v0.8.0
[INFO] [stderr]   Downloaded sha-1 v0.7.0
[INFO] [stderr]   Downloaded num-integer v0.1.36
[INFO] [stderr]   Downloaded vcpkg v0.2.3
[INFO] [stderr]   Downloaded yasna v0.1.3
[INFO] [stderr]   Downloaded libsqlite3-sys v0.9.1
[INFO] [stderr]   Downloaded pem v0.5.0
[INFO] [stderr]   Downloaded diesel_migrations v1.2.0
[INFO] [stderr]   Downloaded diesel-derive-enum v0.4.4
[INFO] [stderr]   Downloaded grpcio-compiler v0.2.0
[INFO] [stderr]   Downloaded migrations_macros v1.2.0
[INFO] [stderr]   Downloaded gpg-error v0.3.2
[INFO] [stderr]   Downloaded migrations_internals v1.2.0
[INFO] [stderr]   Downloaded grpcio v0.2.3
[INFO] [stderr]   Downloaded pretty-good v0.2.2
[INFO] [stderr]   Downloaded libyubihsm v0.2.1
[INFO] [stderr]   Downloaded grpcio-sys v0.2.3
[INFO] [stderr]   Downloaded gpgme v0.7.2
[INFO] [stderr]   Downloaded libgpg-error-sys v0.3.2
[INFO] [stderr]   Downloaded gpgme-sys v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a39e9979a9be4fa7e7c7b8448d222e418069d55c825c2e6bed7f678dd15829f
[INFO] running `Command { std: "docker" "start" "-a" "9a39e9979a9be4fa7e7c7b8448d222e418069d55c825c2e6bed7f678dd15829f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a39e9979a9be4fa7e7c7b8448d222e418069d55c825c2e6bed7f678dd15829f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a39e9979a9be4fa7e7c7b8448d222e418069d55c825c2e6bed7f678dd15829f", kill_on_drop: false }`
[INFO] [stdout] 9a39e9979a9be4fa7e7c7b8448d222e418069d55c825c2e6bed7f678dd15829f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 935600fb07f788620bbea8e2ca48c736f2f11d0f855c16cfdfecf7e223fe9edb
[INFO] running `Command { std: "docker" "start" "-a" "935600fb07f788620bbea8e2ca48c736f2f11d0f855c16cfdfecf7e223fe9edb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking rustc-demangle v0.1.7
[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]     Checking byteorder v1.2.2
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling protobuf v1.5.1
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]     Checking futures v0.1.21
[INFO] [stderr]    Compiling bindgen v0.32.3
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling gpg-error v0.3.2
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]    Compiling gpgme v0.7.2
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]     Checking base64 v0.8.0
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking rpassword v2.0.0
[INFO] [stderr]     Checking secstr v0.3.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling protoc v1.5.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling cmake v0.1.30
[INFO] [stderr]     Checking digest v0.7.2
[INFO] [stderr]    Compiling clang-sys v0.21.2
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking loggerv v0.7.1
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling libsqlite3-sys v0.9.1
[INFO] [stderr]     Checking cstr-argument v0.0.2
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking sha-1 v0.7.0
[INFO] [stderr]     Checking md-5 v0.7.0
[INFO] [stderr]     Checking ripemd160 v0.7.0
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling libgpg-error-sys v0.3.2
[INFO] [stderr]    Compiling bzip2-sys v0.1.6
[INFO] [stderr]    Compiling gpgme-sys v0.7.0
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling syn v0.14.4
[INFO] [stderr]    Compiling grpcio-sys v0.2.3
[INFO] [stderr]    Compiling chrono v0.4.2
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]     Checking tempfile v3.0.2
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling cexpr v0.2.3
[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,link -C embed-bitcode=no -C debuginfo=2 -C metadata=d0b4bb977400d72c -C extra-filename=-d0b4bb977400d72c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ucd_util=/opt/rustwide/target/debug/deps/libucd_util-e661d6614998568b.rmeta --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "935600fb07f788620bbea8e2ca48c736f2f11d0f855c16cfdfecf7e223fe9edb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "935600fb07f788620bbea8e2ca48c736f2f11d0f855c16cfdfecf7e223fe9edb", kill_on_drop: false }`
[INFO] [stdout] 935600fb07f788620bbea8e2ca48c736f2f11d0f855c16cfdfecf7e223fe9edb