[INFO] cloning repository https://github.com/lantonides/huizenzoeker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lantonides/huizenzoeker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flantonides%2Fhuizenzoeker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flantonides%2Fhuizenzoeker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab55e7fafc4cb80c903aa48e2aff2649fd44af7b
[INFO] checking lantonides/huizenzoeker against master#0599f3403366d9c57f0625e6de3af214b5042a90 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flantonides%2Fhuizenzoeker" "/workspace/builds/worker-42/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-42/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lantonides/huizenzoeker on toolchain 0599f3403366d9c57f0625e6de3af214b5042a90
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lantonides/huizenzoeker
[INFO] finished tweaking git repo https://github.com/lantonides/huizenzoeker
[INFO] tweaked toml for git repo https://github.com/lantonides/huizenzoeker written to /workspace/builds/worker-42/source/Cargo.toml
[INFO] crate git repo https://github.com/lantonides/huizenzoeker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0599f3403366d9c57f0625e6de3af214b5042a90" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f48c4af9fd6ec5e1d226faba6b8757b4cbac638d61b685b020599e9d00383453
[INFO] running `Command { std: "docker" "start" "-a" "f48c4af9fd6ec5e1d226faba6b8757b4cbac638d61b685b020599e9d00383453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f48c4af9fd6ec5e1d226faba6b8757b4cbac638d61b685b020599e9d00383453", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f48c4af9fd6ec5e1d226faba6b8757b4cbac638d61b685b020599e9d00383453", kill_on_drop: false }`
[INFO] [stdout] f48c4af9fd6ec5e1d226faba6b8757b4cbac638d61b685b020599e9d00383453
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-42/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" "+0599f3403366d9c57f0625e6de3af214b5042a90" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83a1fda668d62de391d520000e48e1a502203b348ee0f70a9fc241b04368aeb7
[INFO] running `Command { std: "docker" "start" "-a" "83a1fda668d62de391d520000e48e1a502203b348ee0f70a9fc241b04368aeb7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.48
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling cc v1.0.29
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.16
[INFO] [stderr]     Checking string v0.1.3
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling crc32fast v1.1.2
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling encoding_rs v0.8.16
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]     Checking smallvec v0.6.8
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]     Checking new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking tokio-executor v0.1.6
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking mime v0.3.13
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]     Checking want v0.0.6
[INFO] [stderr]     Checking dtoa-short v0.3.2
[INFO] [stderr]     Checking libflate v0.1.19
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.8
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking tokio-current-thread v0.1.4
[INFO] [stderr]    Compiling openssl-sys v0.9.40
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.26/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="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=ff6f7ae5b3087b18 -C extra-filename=-ff6f7ae5b3087b18 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-34ff83706c0c85bb.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-e3431ccd0f47beee.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-17df5e5ca0bb5bda.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" "83a1fda668d62de391d520000e48e1a502203b348ee0f70a9fc241b04368aeb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83a1fda668d62de391d520000e48e1a502203b348ee0f70a9fc241b04368aeb7", kill_on_drop: false }`
[INFO] [stdout] 83a1fda668d62de391d520000e48e1a502203b348ee0f70a9fc241b04368aeb7