[INFO] crate paired 0.16.0 is already in cache
[INFO] checking paired-0.16.0 against try#662bf71cc5bbfe44a109ab5b7205e12ec319754c for pr-67531
[INFO] extracting crate paired 0.16.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate paired 0.16.0 on toolchain 662bf71cc5bbfe44a109ab5b7205e12ec319754c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate paired 0.16.0
[INFO] finished tweaking crates.io crate paired 0.16.0
[INFO] tweaked toml for crates.io crate paired 0.16.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "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] feac4775be9c165b84ee246657bda81746ae459befa7fdbb6b3113ff64388e51
[INFO] running `"docker" "start" "-a" "feac4775be9c165b84ee246657bda81746ae459befa7fdbb6b3113ff64388e51"`
[INFO] [stderr]     Checking blake2b_simd v0.5.9
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]    Compiling ff_derive v0.4.0
[INFO] [stderr]     Checking ff v0.5.1
[INFO] [stderr]     Checking groupy v0.2.0
[INFO] [stderr]     Checking paired v0.16.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0276]: impl has stricter requirements than trait
[INFO] [stderr]    --> src/bls12_381/fq.rs:473:10
[INFO] [stderr]     |
[INFO] [stderr] 473 | #[derive(PrimeField)]
[INFO] [stderr]     |          ^^^^^^^^^^ impl has extra requirement `R: std::marker::Sized`
[INFO] [stderr] 
[INFO] [stderr] error[E0276]: impl has stricter requirements than trait
[INFO] [stderr]   --> src/bls12_381/fq12.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn random<R: RngCore>(rng: &mut R) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ impl has extra requirement `R: std::marker::Sized`
[INFO] [stderr] 
[INFO] [stderr] error[E0276]: impl has stricter requirements than trait
[INFO] [stderr]   --> src/bls12_381/fq2.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     fn random<R: RngCore>(rng: &mut R) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ impl has extra requirement `R: std::marker::Sized`
[INFO] [stderr] 
[INFO] [stderr] error[E0276]: impl has stricter requirements than trait
[INFO] [stderr]    --> src/bls12_381/fq6.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn random<R: RngCore>(rng: &mut R) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ impl has extra requirement `R: std::marker::Sized`
[INFO] [stderr] 
[INFO] [stderr] error[E0276]: impl has stricter requirements than trait
[INFO] [stderr]  --> src/bls12_381/fr.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[derive(PrimeField)]
[INFO] [stderr]   |          ^^^^^^^^^^ impl has extra requirement `R: std::marker::Sized`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0276`.
[INFO] [stderr] error: could not compile `paired`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0276]: impl has stricter requirements than trait
[INFO] [stderr]    --> src/bls12_381/fq.rs:473:10
[INFO] [stderr]     |
[INFO] [stderr] 473 | #[derive(PrimeField)]
[INFO] [stderr]     |          ^^^^^^^^^^ impl has extra requirement `R: std::marker::Sized`
[INFO] [stderr] 
[INFO] [stderr] error[E0276]: impl has stricter requirements than trait
[INFO] [stderr]   --> src/bls12_381/fq12.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     fn random<R: RngCore>(rng: &mut R) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ impl has extra requirement `R: std::marker::Sized`
[INFO] [stderr] 
[INFO] [stderr] error[E0276]: impl has stricter requirements than trait
[INFO] [stderr]   --> src/bls12_381/fq2.rs:93:5
[INFO] [stderr]    |
[INFO] [stderr] 93 |     fn random<R: RngCore>(rng: &mut R) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ impl has extra requirement `R: std::marker::Sized`
[INFO] [stderr] 
[INFO] [stderr] error[E0276]: impl has stricter requirements than trait
[INFO] [stderr]    --> src/bls12_381/fq6.rs:104:5
[INFO] [stderr]     |
[INFO] [stderr] 104 |     fn random<R: RngCore>(rng: &mut R) -> Self {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ impl has extra requirement `R: std::marker::Sized`
[INFO] [stderr] 
[INFO] [stderr] error[E0276]: impl has stricter requirements than trait
[INFO] [stderr]  --> src/bls12_381/fr.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | #[derive(PrimeField)]
[INFO] [stderr]   |          ^^^^^^^^^^ impl has extra requirement `R: std::marker::Sized`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0276`.
[INFO] [stderr] error: could not compile `paired`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "feac4775be9c165b84ee246657bda81746ae459befa7fdbb6b3113ff64388e51"`
[INFO] running `"docker" "rm" "-f" "feac4775be9c165b84ee246657bda81746ae459befa7fdbb6b3113ff64388e51"`
[INFO] [stdout] feac4775be9c165b84ee246657bda81746ae459befa7fdbb6b3113ff64388e51