[INFO] crate bellman 0.2.0 is already in cache
[INFO] checking bellman-0.2.0 against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] extracting crate bellman 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate bellman 0.2.0 on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bellman 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate bellman 0.2.0
[INFO] tweaked toml for crates.io crate bellman 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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] 49dce2fec4c4129d168d10b2f3171aa6496f61aa15c1a6819e7109a8bf7fbdb1
[INFO] running `"docker" "start" "-a" "49dce2fec4c4129d168d10b2f3171aa6496f61aa15c1a6819e7109a8bf7fbdb1"`
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]     Checking rand_xorshift v0.2.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking blake2s_simd v0.5.10
[INFO] [stderr]     Checking sha2 v0.8.1
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling ff_derive v0.4.1
[INFO] [stderr]    Compiling hex-literal-impl v0.2.1
[INFO] [stderr]     Checking hex-literal v0.2.1
[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 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:358:34
[INFO] [stderr]     |
[INFO] [stderr] 358 |             write!(f, "{}", self.description())
[INFO] [stderr]     |                                  ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0276]: impl has stricter requirements than trait
[INFO] [stderr]   --> src/groth16/tests/dummy_engine.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn random<R: RngCore>(rng: &mut R) -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ impl has extra requirement `R: std::marker::Sized`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:358:34
[INFO] [stderr]     |
[INFO] [stderr] 358 |             write!(f, "{}", self.description())
[INFO] [stderr]     |                                  ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[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 `bellman`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "49dce2fec4c4129d168d10b2f3171aa6496f61aa15c1a6819e7109a8bf7fbdb1"`
[INFO] running `"docker" "rm" "-f" "49dce2fec4c4129d168d10b2f3171aa6496f61aa15c1a6819e7109a8bf7fbdb1"`
[INFO] [stdout] 49dce2fec4c4129d168d10b2f3171aa6496f61aa15c1a6819e7109a8bf7fbdb1