[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] checking coreos/fero against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[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 b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gpgme v0.7.2
[INFO] [stderr]   Downloaded protobuf v1.5.1
[INFO] [stderr]   Downloaded cmake v0.1.30
[INFO] [stderr]   Downloaded bzip2 v0.3.2
[INFO] [stderr]   Downloaded gpgme-sys v0.7.0
[INFO] [stderr]   Downloaded grpcio-compiler v0.2.0
[INFO] [stderr]   Downloaded libgpg-error-sys v0.3.2
[INFO] [stderr]   Downloaded libyubihsm v0.2.1
[INFO] [stderr]   Downloaded cstr-argument v0.0.2
[INFO] [stderr]   Downloaded gpg-error v0.3.2
[INFO] [stderr]   Downloaded grpcio v0.2.3
[INFO] [stderr]   Downloaded pretty-good v0.2.2
[INFO] [stderr]   Downloaded secstr v0.3.0
[INFO] [stderr]   Downloaded protoc v1.5.1
[INFO] [stderr]   Downloaded pem v0.5.0
[INFO] [stderr]   Downloaded grpcio-sys v0.2.3
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20758037fdb8c59e863c9657e9be992682bfea7d55587290bfb9721e58b7576c
[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" "20758037fdb8c59e863c9657e9be992682bfea7d55587290bfb9721e58b7576c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20758037fdb8c59e863c9657e9be992682bfea7d55587290bfb9721e58b7576c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20758037fdb8c59e863c9657e9be992682bfea7d55587290bfb9721e58b7576c", kill_on_drop: false }`
[INFO] [stdout] 20758037fdb8c59e863c9657e9be992682bfea7d55587290bfb9721e58b7576c
[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" "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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eea79368003ad21fcc8f6aa06fbacb4a7ee7187b9e55c02a9b7aa85aadb64cd4
[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" "eea79368003ad21fcc8f6aa06fbacb4a7ee7187b9e55c02a9b7aa85aadb64cd4", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling cc v1.0.15
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling protobuf v1.5.1
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking futures v0.1.21
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]    Compiling bindgen v0.32.3
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling byteorder v1.2.2
[INFO] [stderr]    Compiling gpg-error v0.3.2
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]    Compiling clang-sys v0.21.2
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking base64 v0.8.0
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking digest v0.7.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling protoc v1.5.1
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking sha-1 v0.7.0
[INFO] [stderr]     Checking ripemd160 v0.7.0
[INFO] [stderr]     Checking md-5 v0.7.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling atty v0.2.10
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling which v1.0.5
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling cmake v0.1.30
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]     Checking rpassword v2.0.0
[INFO] [stderr]     Checking secstr v0.3.0
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling syn v0.14.4
[INFO] [stderr]     Checking loggerv v0.7.1
[INFO] [stderr]     Checking cstr-argument v0.0.2
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]    Compiling gpgme v0.7.2
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling libsqlite3-sys v0.9.1
[INFO] [stderr]    Compiling chrono v0.4.2
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking num-bigint v0.1.43
[INFO] [stderr]     Checking tempfile v3.0.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling grpcio-sys v0.2.3
[INFO] [stderr]    Compiling libgpg-error-sys v0.3.2
[INFO] [stderr]    Compiling gpgme-sys v0.7.0
[INFO] [stderr]    Compiling bzip2-sys v0.1.6
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking gag v0.1.10
[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=361a468ed4e84da9 -C extra-filename=-361a468ed4e84da9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ucd_util=/opt/rustwide/target/debug/deps/libucd_util-fac127f6568540df.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" "eea79368003ad21fcc8f6aa06fbacb4a7ee7187b9e55c02a9b7aa85aadb64cd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eea79368003ad21fcc8f6aa06fbacb4a7ee7187b9e55c02a9b7aa85aadb64cd4", kill_on_drop: false }`
[INFO] [stdout] eea79368003ad21fcc8f6aa06fbacb4a7ee7187b9e55c02a9b7aa85aadb64cd4