[INFO] updating cached repository https://github.com/QED-it/zkinterface-bellman
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d85cfafd95c40f63e5a32772a98cb5071954eab2
[INFO] checking QED-it/zkinterface-bellman against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQED-it%2Fzkinterface-bellman" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/QED-it/zkinterface-bellman on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/QED-it/zkinterface-bellman
[INFO] finished tweaking git repo https://github.com/QED-it/zkinterface-bellman
[INFO] tweaked toml for git repo https://github.com/QED-it/zkinterface-bellman written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/QED-it/zkinterface-bellman already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "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] 43476d0bfbe42b982802ef524cb0c5c51e61d870bd0c46724d09e07c7e9a06d6
[INFO] running `"docker" "start" "-a" "43476d0bfbe42b982802ef524cb0c5c51e61d870bd0c46724d09e07c7e9a06d6"`
[INFO] [stderr]     Checking flatbuffers v0.5.0
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking blake2-rfc v0.2.18 (https://github.com/gtank/blake2-rfc?rev=7a5b5fc99ae483a0043db7547fb79a6fa44b88a9#7a5b5fc9)
[INFO] [stderr]     Checking num-bigint v0.2.2
[INFO] [stderr]    Compiling zkinterface v1.0.6
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling ff_derive v0.3.0 (https://github.com/zcash/librustzcash#d7ba3102)
[INFO] [stderr]     Checking ff v0.4.0 (https://github.com/zcash/librustzcash#d7ba3102)
[INFO] [stderr]     Checking group v0.1.0 (https://github.com/zcash/librustzcash#d7ba3102)
[INFO] [stderr]     Checking pairing v0.14.2 (https://github.com/zcash/librustzcash#d7ba3102)
[INFO] [stderr]     Checking bellman v0.1.0 (https://github.com/zcash/librustzcash#d7ba3102)
[INFO] [stderr]     Checking sapling-crypto v0.0.1 (https://github.com/zcash/librustzcash#d7ba3102)
[INFO] [stderr]     Checking zkinterface_bellman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/import.rs:58:15
[INFO] [stderr]    |
[INFO] [stderr] 58 |     exec_fn: &Fn(&[u8]) -> Result<Messages, String>,
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8]) -> Result<Messages, String>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/import.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 | ) -> Result<(Vec<AllocatedNum<E>>), SynthesisError>
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/import.rs:58:15
[INFO] [stderr]    |
[INFO] [stderr] 58 |     exec_fn: &Fn(&[u8]) -> Result<Messages, String>,
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&[u8]) -> Result<Messages, String>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/import.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 | ) -> Result<(Vec<AllocatedNum<E>>), SynthesisError>
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/bin.rs:7:33
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/bin.rs:7:33
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                                 ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.53s
[INFO] running `"docker" "inspect" "43476d0bfbe42b982802ef524cb0c5c51e61d870bd0c46724d09e07c7e9a06d6"`
[INFO] running `"docker" "rm" "-f" "43476d0bfbe42b982802ef524cb0c5c51e61d870bd0c46724d09e07c7e9a06d6"`
[INFO] [stdout] 43476d0bfbe42b982802ef524cb0c5c51e61d870bd0c46724d09e07c7e9a06d6