[INFO] crate webapp-frontend 1.0.0 is already in cache
[INFO] checking webapp-frontend-1.0.0 against try#bcff76bad586cfb6874f179a4b66448e6b8a832c for pr-66919
[INFO] extracting crate webapp-frontend 1.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate webapp-frontend 1.0.0 on toolchain bcff76bad586cfb6874f179a4b66448e6b8a832c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate webapp-frontend 1.0.0
[INFO] finished tweaking crates.io crate webapp-frontend 1.0.0
[INFO] tweaked toml for crates.io crate webapp-frontend 1.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bcff76bad586cfb6874f179a4b66448e6b8a832c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 64880d23fa9ed96468de3717812ca926a20569a225c1513a5721b25e2293e087
[INFO] running `"docker" "start" "-a" "64880d23fa9ed96468de3717812ca926a20569a225c1513a5721b25e2293e087"`
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]    Compiling sass-sys v0.4.15
[INFO] [stderr]    Compiling toml v0.5.5
[INFO] [stderr]    Compiling stdweb-derive v0.5.3
[INFO] [stderr]     Checking serde_cbor v0.9.0
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]    Compiling stdweb-internal-macros v0.2.9
[INFO] [stderr]     Checking webapp v1.0.0
[INFO] [stderr] error: could not compile `stdweb-internal-macros`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name stdweb_internal_macros /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stdweb-internal-macros-0.2.9/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C debuginfo=2 -C metadata=217293e712b72d74 -C extra-filename=-217293e712b72d74 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern base_x=/opt/rustwide/target/debug/deps/libbase_x-2e764a1cd0e9f44a.rlib --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-2c0120cdae522555.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-0e7845a2633aef5f.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-7747ce7d60667839.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-fb89d5751dfe008d.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-776eb06d32dc1293.rlib --extern sha1=/opt/rustwide/target/debug/deps/libsha1-d1459a59ea067a2b.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-aca5b6f91a09e43b.rlib --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 `"docker" "inspect" "64880d23fa9ed96468de3717812ca926a20569a225c1513a5721b25e2293e087"`
[INFO] running `"docker" "rm" "-f" "64880d23fa9ed96468de3717812ca926a20569a225c1513a5721b25e2293e087"`
[INFO] [stdout] 64880d23fa9ed96468de3717812ca926a20569a225c1513a5721b25e2293e087