[INFO] fetching crate cobalt-bin 0.16.5...
[INFO] testing cobalt-bin-0.16.5 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate cobalt-bin 0.16.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cobalt-bin 0.16.5 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cobalt-bin 0.16.5
[INFO] finished tweaking crates.io crate cobalt-bin 0.16.5
[INFO] tweaked toml for crates.io crate cobalt-bin 0.16.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate cobalt-bin 0.16.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded macro-utils v0.1.3
[INFO] [stderr]   Downloaded minifier v0.0.39
[INFO] [stderr]   Downloaded regex v1.5.1
[INFO] [stderr]   Downloaded sitemap v0.4.1
[INFO] [stderr]   Downloaded tiny_http v0.8.1
[INFO] [stderr]   Downloaded sass-sys v0.4.21
[INFO] [stderr]   Downloaded chrono_utils v0.1.3
[INFO] [stderr]   Downloaded regex-syntax v0.6.24
[INFO] [stderr]   Downloaded ghp v0.1.2
[INFO] [stderr]   Downloaded html-minifier v3.0.10
[INFO] [stderr]   Downloaded jsonfeed v0.2.0
[INFO] [stderr]   Downloaded deunicode v1.2.1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f74a9e6fbf614842794481d6eb7478d1463a7701366fe657666f171375a8892
[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" "5f74a9e6fbf614842794481d6eb7478d1463a7701366fe657666f171375a8892", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f74a9e6fbf614842794481d6eb7478d1463a7701366fe657666f171375a8892", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f74a9e6fbf614842794481d6eb7478d1463a7701366fe657666f171375a8892", kill_on_drop: false }`
[INFO] [stdout] 5f74a9e6fbf614842794481d6eb7478d1463a7701366fe657666f171375a8892
[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=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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] df5ef4913e37a80cb938fae1f39ff21a658a905769f8acc348e45a7824e24d3a
[INFO] running `Command { std: "docker" "start" "-a" "df5ef4913e37a80cb938fae1f39ff21a658a905769f8acc348e45a7824e24d3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling regex-syntax v0.6.24
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling object v0.23.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling macro-utils v0.1.3
[INFO] [stderr]    Compiling deunicode v1.2.1
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling utf8-width v0.1.5
[INFO] [stderr]    Compiling cow-utils v0.1.2
[INFO] [stderr]    Compiling ascii v1.0.0
[INFO] [stderr]    Compiling backtrace v0.3.58
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling line-wrap v0.1.1
[INFO] [stderr]    Compiling minifier v0.0.39
[INFO] [stderr]    Compiling html-escape v0.2.9
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling quick-xml v0.20.0
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling proc-quote-impl v0.3.2
[INFO] [stderr]    Compiling url v2.2.1
[INFO] [stderr]    Compiling walkdir v0.1.8
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling bstr v0.2.15
[INFO] [stderr]    Compiling ghp v0.1.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling which v4.1.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling regex v1.5.1
[INFO] [stderr]    Compiling inotify v0.7.1
[INFO] [stderr]    Compiling open v1.7.0
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling addr2line v0.14.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling sass-sys v0.4.21
[INFO] [stderr]    Compiling fancy-regex v0.3.5
[INFO] [stderr]    Compiling globset v0.4.6
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.71/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 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=234f32c45bef73b9 -C extra-filename=-234f32c45bef73b9 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-14cd586ab686c21a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-87ff32172245591e.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-62645fc4c65f65ba.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (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" "df5ef4913e37a80cb938fae1f39ff21a658a905769f8acc348e45a7824e24d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df5ef4913e37a80cb938fae1f39ff21a658a905769f8acc348e45a7824e24d3a", kill_on_drop: false }`
[INFO] [stdout] df5ef4913e37a80cb938fae1f39ff21a658a905769f8acc348e45a7824e24d3a
