[INFO] cloning repository https://github.com/roast-rs/roast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/roast-rs/roast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froast-rs%2Froast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froast-rs%2Froast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb9f2150ffc8096a3730d14181ad181dbcb094d3
[INFO] checking roast-rs/roast against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Froast-rs%2Froast" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/roast-rs/roast on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/roast-rs/roast
[INFO] finished tweaking git repo https://github.com/roast-rs/roast
[INFO] tweaked toml for git repo https://github.com/roast-rs/roast written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/roast-rs/roast already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab2fc39efa2ad92a9d5b27dc0a5a9ffc15f7297fb4fad83f967bca194f45ce6c
[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" "ab2fc39efa2ad92a9d5b27dc0a5a9ffc15f7297fb4fad83f967bca194f45ce6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab2fc39efa2ad92a9d5b27dc0a5a9ffc15f7297fb4fad83f967bca194f45ce6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab2fc39efa2ad92a9d5b27dc0a5a9ffc15f7297fb4fad83f967bca194f45ce6c", kill_on_drop: false }`
[INFO] [stdout] ab2fc39efa2ad92a9d5b27dc0a5a9ffc15f7297fb4fad83f967bca194f45ce6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02a5c751684e2c3ee9812cc80f8d069b109b5e30c73d0d367ef956316dc4e329
[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" "02a5c751684e2c3ee9812cc80f8d069b109b5e30c73d0d367ef956316dc4e329", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.13
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling same-file v1.0.2
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling pkg-config v0.3.13
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]    Compiling ryu v0.2.3
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling cesu8 v1.1.0
[INFO] [stderr]    Compiling jni-sys v0.3.0
[INFO] [stderr]    Compiling itoa v0.4.2
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking combine v4.2.1
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling jni v0.17.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking loggerv v0.7.1
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking includedir v0.6.0
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[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-0.6.2/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=ecdc4fabf1907294 -C extra-filename=-ecdc4fabf1907294 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ucd_util=/opt/rustwide/target/debug/deps/libucd_util-944af7ca7193e5f9.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" "02a5c751684e2c3ee9812cc80f8d069b109b5e30c73d0d367ef956316dc4e329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02a5c751684e2c3ee9812cc80f8d069b109b5e30c73d0d367ef956316dc4e329", kill_on_drop: false }`
[INFO] [stdout] 02a5c751684e2c3ee9812cc80f8d069b109b5e30c73d0d367ef956316dc4e329