[INFO] fetching crate wccg-data 0.6.10...
[INFO] checking wccg-data-0.6.10 against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] extracting crate wccg-data 0.6.10 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate wccg-data 0.6.10 on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wccg-data 0.6.10
[INFO] finished tweaking crates.io crate wccg-data 0.6.10
[INFO] tweaked toml for crates.io crate wccg-data 0.6.10 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07d308f5e88e3ecad67a6e24ae5fcc37f5db748137ab2f6fb78e23d9f6f17a6d
[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" "07d308f5e88e3ecad67a6e24ae5fcc37f5db748137ab2f6fb78e23d9f6f17a6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07d308f5e88e3ecad67a6e24ae5fcc37f5db748137ab2f6fb78e23d9f6f17a6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07d308f5e88e3ecad67a6e24ae5fcc37f5db748137ab2f6fb78e23d9f6f17a6d", kill_on_drop: false }`
[INFO] [stdout] 07d308f5e88e3ecad67a6e24ae5fcc37f5db748137ab2f6fb78e23d9f6f17a6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e011bfe277168732f9bf2fc9a23dec74d6fd6979aacee0e865c175a62282303
[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" "7e011bfe277168732f9bf2fc9a23dec74d6fd6979aacee0e865c175a62282303", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking futures-sink v0.3.7
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking tower-service v0.3.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking os_info v2.0.8
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking futures-intrusive v0.3.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking backtrace v0.3.54
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking rustls v0.18.1
[INFO] [stderr]     Checking webpki-roots v0.19.0
[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling typed-builder v0.3.0
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling async-trait v0.1.41
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr] error: could not compile `darling_core`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name darling_core /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/darling_core-0.10.2/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="strsim"' --cfg 'feature="suggestions"' -C metadata=803beb95151def4a -C extra-filename=-803beb95151def4a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern fnv=/opt/rustwide/target/debug/deps/libfnv-eef866999c50c67e.rmeta --extern ident_case=/opt/rustwide/target/debug/deps/libident_case-c360dd6ce4b6268c.rmeta --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-8a8bb825df9136cb.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-944c052ceb08ffd8.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-a7a9bbcdee107293.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-5c71a50c37903d8f.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" "7e011bfe277168732f9bf2fc9a23dec74d6fd6979aacee0e865c175a62282303", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e011bfe277168732f9bf2fc9a23dec74d6fd6979aacee0e865c175a62282303", kill_on_drop: false }`
[INFO] [stdout] 7e011bfe277168732f9bf2fc9a23dec74d6fd6979aacee0e865c175a62282303