[INFO] cloning repository https://github.com/nutspanther/rust-discord-bot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nutspanther/rust-discord-bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnutspanther%2Frust-discord-bot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnutspanther%2Frust-discord-bot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c86df6368a39c24ae0a5d426673e1cec485849a1
[INFO] testing nutspanther/rust-discord-bot against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnutspanther%2Frust-discord-bot" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nutspanther/rust-discord-bot on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nutspanther/rust-discord-bot
[INFO] finished tweaking git repo https://github.com/nutspanther/rust-discord-bot
[INFO] tweaked toml for git repo https://github.com/nutspanther/rust-discord-bot written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/nutspanther/rust-discord-bot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e9e2f4c1497c4554be30e217c0aebcf421b101af1ef476b8d127fe11ad4450e
[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" "9e9e2f4c1497c4554be30e217c0aebcf421b101af1ef476b8d127fe11ad4450e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e9e2f4c1497c4554be30e217c0aebcf421b101af1ef476b8d127fe11ad4450e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e9e2f4c1497c4554be30e217c0aebcf421b101af1ef476b8d127fe11ad4450e", kill_on_drop: false }`
[INFO] [stdout] 9e9e2f4c1497c4554be30e217c0aebcf421b101af1ef476b8d127fe11ad4450e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4e98474fbf4e40d5e9bad8ac92527c8898df5ca8ee33bec3bb43f70c935c56b
[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" "a4e98474fbf4e40d5e9bad8ac92527c8898df5ca8ee33bec3bb43f70c935c56b", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling untrusted v0.7.0
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling bindgen v0.48.1
[INFO] [stderr]    Compiling indexmap v1.2.0
[INFO] [stderr]    Compiling rle-decode-fast v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.1
[INFO] [stderr]    Compiling openssl v0.10.25
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling encoding_rs v0.8.20
[INFO] [stderr]    Compiling mime v0.3.14
[INFO] [stderr]    Compiling serenity v0.7.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling ring v0.16.9
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]    Compiling try_from v0.3.2
[INFO] [stderr]    Compiling regex-syntax v0.6.5
[INFO] [stderr]    Compiling tokio-sync v0.1.7
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]    Compiling miniz_oxide v0.3.3
[INFO] [stderr]    Compiling tokio-executor v0.1.8
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.51
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling filetime v0.2.7
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling tokio-timer v0.2.11
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling libflate v0.1.27
[INFO] [stderr]    Compiling tar v0.4.26
[INFO] [stderr]    Compiling flate2 v1.0.12
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling cexpr v0.3.5
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling mime_guess v2.0.1
[INFO] [stderr]    Compiling sha-1 v0.8.1
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling http v0.1.18
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling input_buffer v0.2.0
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling libsodium-sys v0.2.5
[INFO] [stderr]    Compiling tokio-reactor v0.1.10
[INFO] [stderr]    Compiling tokio-threadpool v0.1.16
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling publicsuffix v1.5.3
[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-1.0.5/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=1332927e2b44259e -C extra-filename=-1332927e2b44259e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-5bb4cae4155e07cc.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e245b0ed3a4cc946.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-0ab589a11845f108.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" "a4e98474fbf4e40d5e9bad8ac92527c8898df5ca8ee33bec3bb43f70c935c56b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4e98474fbf4e40d5e9bad8ac92527c8898df5ca8ee33bec3bb43f70c935c56b", kill_on_drop: false }`
[INFO] [stdout] a4e98474fbf4e40d5e9bad8ac92527c8898df5ca8ee33bec3bb43f70c935c56b
