[INFO] cloning repository https://github.com/arcturus-robotics/instascrape
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arcturus-robotics/instascrape" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcturus-robotics%2Finstascrape", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcturus-robotics%2Finstascrape'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2abbe75a50f71d90cd489b9e2bce6e79d184a57e
[INFO] checking arcturus-robotics/instascrape against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcturus-robotics%2Finstascrape" "/workspace/builds/worker-112/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-112/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arcturus-robotics/instascrape on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arcturus-robotics/instascrape
[INFO] finished tweaking git repo https://github.com/arcturus-robotics/instascrape
[INFO] tweaked toml for git repo https://github.com/arcturus-robotics/instascrape written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate git repo https://github.com/arcturus-robotics/instascrape already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c48aea0417af22a269a5038dade540d42d8cdc5e7a1db0a32d5e3c11122e61c3
[INFO] running `Command { std: "docker" "start" "-a" "c48aea0417af22a269a5038dade540d42d8cdc5e7a1db0a32d5e3c11122e61c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c48aea0417af22a269a5038dade540d42d8cdc5e7a1db0a32d5e3c11122e61c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c48aea0417af22a269a5038dade540d42d8cdc5e7a1db0a32d5e3c11122e61c3", kill_on_drop: false }`
[INFO] [stdout] c48aea0417af22a269a5038dade540d42d8cdc5e7a1db0a32d5e3c11122e61c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3df626318f03e76dca905453b2190a613af3deead01fd2b1a2e02607211fd68d
[INFO] running `Command { std: "docker" "start" "-a" "3df626318f03e76dca905453b2190a613af3deead01fd2b1a2e02607211fd68d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking bytes v0.5.3
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]     Checking futures-task v0.3.1
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking smallvec v1.1.0
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]    Compiling encoding_rs v0.8.22
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling indexmap v1.3.1
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking futures-channel v0.3.1
[INFO] [stderr]     Checking dtoa-short v0.3.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking unicode-normalization v0.1.11
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling syn-mid v0.4.0
[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-1.0.14/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"' --cfg 'feature="visit-mut"' -C metadata=e833126c5be5ae13 -C extra-filename=-e833126c5be5ae13 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-b4ae0b1bb688674b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-a34c2fc6f6dc093e.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-b1a0994eb3258d73.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" "3df626318f03e76dca905453b2190a613af3deead01fd2b1a2e02607211fd68d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3df626318f03e76dca905453b2190a613af3deead01fd2b1a2e02607211fd68d", kill_on_drop: false }`
[INFO] [stdout] 3df626318f03e76dca905453b2190a613af3deead01fd2b1a2e02607211fd68d
