[INFO] cloning repository https://github.com/dowdiness/ringfit-slack
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dowdiness/ringfit-slack" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Fringfit-slack", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Fringfit-slack'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d51b504968eb8d5e5c22f9e20aeb6bc57a51e429
[INFO] checking dowdiness/ringfit-slack against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdowdiness%2Fringfit-slack" "/workspace/builds/worker-61/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-61/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dowdiness/ringfit-slack on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-61/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/dowdiness/ringfit-slack
[INFO] finished tweaking git repo https://github.com/dowdiness/ringfit-slack
[INFO] tweaked toml for git repo https://github.com/dowdiness/ringfit-slack written to /workspace/builds/worker-61/source/Cargo.toml
[INFO] crate git repo https://github.com/dowdiness/ringfit-slack already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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 mac v0.1.1
[INFO] [stderr]   Downloaded servo_arc v0.1.1
[INFO] [stderr]   Downloaded ego-tree v0.6.2
[INFO] [stderr]   Downloaded smallvec v1.3.0
[INFO] [stderr]   Downloaded rocket_http v0.4.4
[INFO] [stderr]   Downloaded publicsuffix v1.5.4
[INFO] [stderr]   Downloaded cssparser-macros v0.3.6
[INFO] [stderr]   Downloaded backtrace v0.3.46
[INFO] [stderr]   Downloaded thin-slice v0.1.1
[INFO] [stderr]   Downloaded dtoa-short v0.3.2
[INFO] [stderr]   Downloaded pear v0.1.2
[INFO] [stderr]   Downloaded flate2 v1.0.14
[INFO] [stderr]   Downloaded devise_core v0.2.0
[INFO] [stderr]   Downloaded hermit-abi v0.1.11
[INFO] [stderr]   Downloaded libc v0.2.69
[INFO] [stderr]   Downloaded error-chain v0.12.2
[INFO] [stderr]   Downloaded vcpkg v0.2.8
[INFO] [stderr]   Downloaded openssl v0.10.29
[INFO] [stderr]   Downloaded dtoa v0.4.5
[INFO] [stderr]   Downloaded yansi v0.5.0
[INFO] [stderr]   Downloaded hyper v0.10.16
[INFO] [stderr]   Downloaded yansi v0.4.0
[INFO] [stderr]   Downloaded string_cache v0.7.5
[INFO] [stderr]   Downloaded scraper v0.11.0
[INFO] [stderr]   Downloaded typeable v0.1.2
[INFO] [stderr]   Downloaded rocket_codegen v0.4.4
[INFO] [stderr]   Downloaded string_cache_codegen v0.4.4
[INFO] [stderr]   Downloaded precomputed-hash v0.1.1
[INFO] [stderr]   Downloaded traitobject v0.1.0
[INFO] [stderr]   Downloaded toml v0.4.10
[INFO] [stderr]   Downloaded state v0.4.1
[INFO] [stderr]   Downloaded selectors v0.21.0
[INFO] [stderr]   Downloaded log v0.3.9
[INFO] [stderr]   Downloaded mime v0.2.6
[INFO] [stderr]   Downloaded new_debug_unreachable v1.0.4
[INFO] [stderr]   Downloaded security-framework-sys v0.4.2
[INFO] [stderr]   Downloaded serde_json v1.0.51
[INFO] [stderr]   Downloaded cookie v0.11.2
[INFO] [stderr]   Downloaded pear_codegen v0.1.2
[INFO] [stderr]   Downloaded rocket v0.4.4
[INFO] [stderr]   Downloaded getopts v0.2.21
[INFO] [stderr]   Downloaded futf v0.1.4
[INFO] [stderr]   Downloaded security-framework v0.4.2
[INFO] [stderr]   Downloaded devise_codegen v0.2.0
[INFO] [stderr]   Downloaded cssparser v0.25.9
[INFO] [stderr]   Downloaded memoffset v0.5.4
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.1
[INFO] [stderr]   Downloaded indexmap v1.3.2
[INFO] [stderr]   Downloaded unicode-normalization v0.1.12
[INFO] [stderr]   Downloaded string_cache_shared v0.3.0
[INFO] [stderr]   Downloaded encoding_rs v0.8.22
[INFO] [stderr]   Downloaded backtrace-sys v0.1.35
[INFO] [stderr]   Downloaded tendril v0.4.1
[INFO] [stderr]   Downloaded regex v1.3.7
[INFO] [stderr]   Downloaded hyper v0.12.35
[INFO] [stderr]   Downloaded failure_derive v0.1.7
[INFO] [stderr]   Downloaded synstructure v0.12.3
[INFO] [stderr]   Downloaded devise v0.2.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.55
[INFO] [stderr]   Downloaded markup5ever v0.9.0
[INFO] [stderr]   Downloaded html5ever v0.24.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.17
[INFO] [stderr]   Downloaded schannel v0.1.18
[INFO] [stderr]   Downloaded procedural-masquerade v0.1.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f198d2289f97d618de0813222369e0b29462f6246cfc767337c2f97bbed58f6
[INFO] running `Command { std: "docker" "start" "-a" "3f198d2289f97d618de0813222369e0b29462f6246cfc767337c2f97bbed58f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f198d2289f97d618de0813222369e0b29462f6246cfc767337c2f97bbed58f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f198d2289f97d618de0813222369e0b29462f6246cfc767337c2f97bbed58f6", kill_on_drop: false }`
[INFO] [stdout] 3f198d2289f97d618de0813222369e0b29462f6246cfc767337c2f97bbed58f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-61/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8bc9c16c40b9f48eef0dcead5ece62207c0a0095136806d8102ee77252d3c27b
[INFO] running `Command { std: "docker" "start" "-a" "8bc9c16c40b9f48eef0dcead5ece62207c0a0095136806d8102ee77252d3c27b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling yansi v0.4.0
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling smallvec v1.3.0
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling encoding_rs v0.8.22
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking memoffset v0.5.4
[INFO] [stderr]     Checking indexmap v1.3.2
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,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-mut"' -C metadata=cbec2a5e11ee98bd -C extra-filename=-cbec2a5e11ee98bd --out-dir /opt/rustwide/target/debug/build/syn-cbec2a5e11ee98bd -L dependency=/opt/rustwide/target/debug/deps --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" "8bc9c16c40b9f48eef0dcead5ece62207c0a0095136806d8102ee77252d3c27b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bc9c16c40b9f48eef0dcead5ece62207c0a0095136806d8102ee77252d3c27b", kill_on_drop: false }`
[INFO] [stdout] 8bc9c16c40b9f48eef0dcead5ece62207c0a0095136806d8102ee77252d3c27b