[INFO] crate url-crawler 0.3.0 is already in cache
[INFO] testing url-crawler-0.3.0 against 1.38.0 for beta-1.39-1
[INFO] extracting crate url-crawler 0.3.0 into work/builds/worker-11/source
[INFO] validating manifest of crates.io crate url-crawler 0.3.0 on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate url-crawler 0.3.0
[INFO] finished tweaking crates.io crate url-crawler 0.3.0
[INFO] tweaked toml for crates.io crate url-crawler 0.3.0 written to work/builds/worker-11/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-11/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] d8df35774a2f297ac47a5532ea47181c8fd126ea538c1eca581cf3cafc90ccf4
[INFO] running `"docker" "start" "-a" "d8df35774a2f297ac47a5532ea47181c8fd126ea538c1eca581cf3cafc90ccf4"`
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling thin-slice v0.1.1
[INFO] [stderr]    Compiling ego-tree v0.6.2
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling dtoa-short v0.3.2
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling tendril v0.4.1
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling tokio-threadpool v0.1.16
[INFO] [stderr]    Compiling crossbeam-channel v0.2.6
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling selectors v0.20.0
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling string_cache v0.7.4
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[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-0.14.9/src/lib.rs --color never --crate-type lib --emit=dep-info,metadata,link -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"' -C metadata=60ab7d8a21dd4a65 -C extra-filename=-60ab7d8a21dd4a65 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-b290e91d29b5a00e.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-102562647730aa5b.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-db534cf3c78b3692.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "d8df35774a2f297ac47a5532ea47181c8fd126ea538c1eca581cf3cafc90ccf4"`
[INFO] running `"docker" "rm" "-f" "d8df35774a2f297ac47a5532ea47181c8fd126ea538c1eca581cf3cafc90ccf4"`
[INFO] [stdout] d8df35774a2f297ac47a5532ea47181c8fd126ea538c1eca581cf3cafc90ccf4