[INFO] crate zcash_proofs 0.1.0 is already in cache
[INFO] checking zcash_proofs-0.1.0 against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] extracting crate zcash_proofs 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate zcash_proofs 0.1.0 on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate zcash_proofs 0.1.0
[INFO] finished tweaking crates.io crate zcash_proofs 0.1.0
[INFO] tweaked toml for crates.io crate zcash_proofs 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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] 20c16074e76b66e5686765225b182a80c35e0bd543536c03e9e7a5c256f1aae4
[INFO] running `"docker" "start" "-a" "20c16074e76b66e5686765225b182a80c35e0bd543536c03e9e7a5c256f1aae4"`
[INFO] [stderr]     Checking crypto_api v0.2.2
[INFO] [stderr]     Checking blake2s_simd v0.5.10
[INFO] [stderr]    Compiling num-bigint v0.2.5
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking block-cipher-trait v0.6.2
[INFO] [stderr]     Checking aes-soft v0.3.3
[INFO] [stderr]     Checking crypto_api_chachapoly v0.2.2
[INFO] [stderr]     Checking aes v0.3.2
[INFO] [stderr]     Checking fpe v0.2.0
[INFO] [stderr]    Compiling ff_derive v0.4.1
[INFO] [stderr]     Checking ff v0.5.2
[INFO] [stderr]     Checking group v0.2.0
[INFO] [stderr]     Checking pairing v0.15.1
[INFO] [stderr]     Checking bellman v0.2.0
[INFO] [stderr]     Checking zcash_primitives v0.1.0
[INFO] [stderr] error[E0276]: impl has stricter requirements than trait
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/zcash_primitives-0.1.0/src/jubjub/fs.rs:320:5
[INFO] [stderr]     |
[INFO] [stderr] 320 |     fn random<R: RngCore>(rng: &mut R) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ impl has extra requirement `R: std::marker::Sized`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0276`.
[INFO] [stderr] error: could not compile `zcash_primitives`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "20c16074e76b66e5686765225b182a80c35e0bd543536c03e9e7a5c256f1aae4"`
[INFO] running `"docker" "rm" "-f" "20c16074e76b66e5686765225b182a80c35e0bd543536c03e9e7a5c256f1aae4"`
[INFO] [stdout] 20c16074e76b66e5686765225b182a80c35e0bd543536c03e9e7a5c256f1aae4