[INFO] fetching crate bellperson-nonnative 0.4.0...
[INFO] testing bellperson-nonnative-0.4.0 against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate bellperson-nonnative 0.4.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate bellperson-nonnative 0.4.0
[INFO] finished tweaking crates.io crate bellperson-nonnative 0.4.0
[INFO] tweaked toml for crates.io crate bellperson-nonnative 0.4.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate bellperson-nonnative 0.4.0 on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 96 packages to latest compatible versions
[INFO] [stderr]       Adding bellperson v0.24.1 (available: v0.26.0)
[INFO] [stderr]       Adding ff v0.12.1 (available: v0.13.1)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded addchain v0.2.0
[INFO] [stderr]   Downloaded execute v0.2.13
[INFO] [stderr]   Downloaded ec-gpu v0.2.0
[INFO] [stderr]   Downloaded blake2s_simd v1.0.3
[INFO] [stderr]   Downloaded ec-gpu-gen v0.5.2
[INFO] [stderr]   Downloaded blstrs v0.6.2
[INFO] [stderr]   Downloaded yastl v0.1.2
[INFO] [stderr]   Downloaded pairing v0.22.0
[INFO] [stderr]   Downloaded execute-command-macro v0.1.9
[INFO] [stderr]   Downloaded generic-array v1.3.3
[INFO] [stderr]   Downloaded execute-command-macro-impl v0.1.10
[INFO] [stderr]   Downloaded bellperson v0.24.1
[INFO] [stderr]   Downloaded execute-command-tokens v0.1.7
[INFO] [stderr]   Downloaded ff_derive v0.12.1
[INFO] [stderr]   Downloaded blst v0.3.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82a1ec2dd36ed81efe601bb6e059b259f4fd6450fce6624614a0b5465b975607
[INFO] running `Command { std: "docker" "start" "-a" "82a1ec2dd36ed81efe601bb6e059b259f4fd6450fce6624614a0b5465b975607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82a1ec2dd36ed81efe601bb6e059b259f4fd6450fce6624614a0b5465b975607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82a1ec2dd36ed81efe601bb6e059b259f4fd6450fce6624614a0b5465b975607", kill_on_drop: false }`
[INFO] [stdout] 82a1ec2dd36ed81efe601bb6e059b259f4fd6450fce6624614a0b5465b975607
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10953e92896577dc499112460f95e59c82c1fa18da2dbbeb238e807e15995d61
[INFO] running `Command { std: "docker" "start" "-a" "10953e92896577dc499112460f95e59c82c1fa18da2dbbeb238e807e15995d61", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling execute-command-tokens v0.1.7
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling blst v0.3.16
[INFO] [stderr]    Compiling ff v0.12.1
[INFO] [stderr]    Compiling rand_xorshift v0.3.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ec-gpu-gen v0.5.2
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling byte-slice-cast v1.2.3
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling ec-gpu v0.2.0
[INFO] [stderr]    Compiling arrayvec v0.7.6
[INFO] [stderr]    Compiling constant_time_eq v0.3.1
[INFO] [stderr]    Compiling memmap2 v0.5.10
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling blake2s_simd v1.0.3
[INFO] [stderr]    Compiling group v0.12.1
[INFO] [stderr]    Compiling flume v0.10.14
[INFO] [stderr]    Compiling pairing v0.22.0
[INFO] [stderr]    Compiling yastl v0.1.2
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]    Compiling generic-array v1.3.3
[INFO] [stderr]    Compiling addchain v0.2.0
[INFO] [stderr]    Compiling ff_derive v0.12.1
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling execute-command-macro-impl v0.1.10
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling execute-command-macro v0.1.9
[INFO] [stderr]    Compiling execute v0.2.13
[INFO] [stderr]    Compiling zeroize v1.8.2
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling blstrs v0.6.2
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling bellperson v0.24.1
[INFO] [stderr]    Compiling bellperson-nonnative v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `grab_mut` is never used
[INFO] [stdout]   --> src/lib.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | trait OptionExt<T> {
[INFO] [stdout]    |       --------- method in this trait
[INFO] [stdout] 15 |     fn grab(&self) -> Result<&T, SynthesisError>;
[INFO] [stdout] 16 |     fn grab_mut(&mut self) -> Result<&mut T, SynthesisError>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/util/lazy.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn borrow(&self) -> Ref<T> {
[INFO] [stdout]    |                   ^^^^^     ------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn borrow(&self) -> Ref<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&BigInt` instead of cloning the inner type
[INFO] [stdout]     --> src/mp/bignat.rs:1293:32
[INFO] [stdout]      |
[INFO] [stdout] 1293 |             || Ok(value.grab()?.clone().clone()),
[INFO] [stdout]      |                                ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 22s
[INFO] running `Command { std: "docker" "inspect" "10953e92896577dc499112460f95e59c82c1fa18da2dbbeb238e807e15995d61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10953e92896577dc499112460f95e59c82c1fa18da2dbbeb238e807e15995d61", kill_on_drop: false }`
[INFO] [stdout] 10953e92896577dc499112460f95e59c82c1fa18da2dbbeb238e807e15995d61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b106c1e3d3657725f0e3021962767341779ae8604bf40e9d91a9f7ccfe71541d
[INFO] running `Command { std: "docker" "start" "-a" "b106c1e3d3657725f0e3021962767341779ae8604bf40e9d91a9f7ccfe71541d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling quickcheck_macros v1.1.0
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling ec-gpu-gen v0.5.2
[INFO] [stderr]    Compiling group v0.12.1
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling bellperson v0.24.1
[INFO] [stderr]    Compiling pairing v0.22.0
[INFO] [stderr]    Compiling blstrs v0.6.2
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling quickcheck v1.0.3
[INFO] [stderr]    Compiling bellperson-nonnative v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `grab_mut` is never used
[INFO] [stdout]   --> src/lib.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | trait OptionExt<T> {
[INFO] [stdout]    |       --------- method in this trait
[INFO] [stdout] 15 |     fn grab(&self) -> Result<&T, SynthesisError>;
[INFO] [stdout] 16 |     fn grab_mut(&mut self) -> Result<&mut T, SynthesisError>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/util/lazy.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn borrow(&self) -> Ref<T> {
[INFO] [stdout]    |                   ^^^^^     ------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn borrow(&self) -> Ref<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&BigInt` instead of cloning the inner type
[INFO] [stdout]     --> src/mp/bignat.rs:1293:32
[INFO] [stdout]      |
[INFO] [stdout] 1293 |             || Ok(value.grab()?.clone().clone()),
[INFO] [stdout]      |                                ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `grab_mut` is never used
[INFO] [stdout]   --> src/lib.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | trait OptionExt<T> {
[INFO] [stdout]    |       --------- method in this trait
[INFO] [stdout] 15 |     fn grab(&self) -> Result<&T, SynthesisError>;
[INFO] [stdout] 16 |     fn grab_mut(&mut self) -> Result<&mut T, SynthesisError>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/util/lazy.rs:33:19
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn borrow(&self) -> Ref<T> {
[INFO] [stdout]    |                   ^^^^^     ------ the lifetime gets resolved as `'_`
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn borrow(&self) -> Ref<'_, T> {
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&num_bigint::BigInt` instead of cloning the inner type
[INFO] [stdout]     --> src/mp/bignat.rs:1293:32
[INFO] [stdout]      |
[INFO] [stdout] 1293 |             || Ok(value.grab()?.clone().clone()),
[INFO] [stdout]      |                                ^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 38.98s
[INFO] running `Command { std: "docker" "inspect" "b106c1e3d3657725f0e3021962767341779ae8604bf40e9d91a9f7ccfe71541d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b106c1e3d3657725f0e3021962767341779ae8604bf40e9d91a9f7ccfe71541d", kill_on_drop: false }`
[INFO] [stdout] b106c1e3d3657725f0e3021962767341779ae8604bf40e9d91a9f7ccfe71541d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 72101b811832e6c38e11cc315555592d7c7213cba69d2880b55803c524939ce4
[INFO] running `Command { std: "docker" "start" "-a" "72101b811832e6c38e11cc315555592d7c7213cba69d2880b55803c524939ce4", kill_on_drop: false }`
[INFO] [stderr] warning: method `grab_mut` is never used
[INFO] [stderr]   --> src/lib.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | trait OptionExt<T> {
[INFO] [stderr]    |       --------- method in this trait
[INFO] [stderr] 15 |     fn grab(&self) -> Result<&T, SynthesisError>;
[INFO] [stderr] 16 |     fn grab_mut(&mut self) -> Result<&mut T, SynthesisError>;
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/util/lazy.rs:33:19
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn borrow(&self) -> Ref<T> {
[INFO] [stderr]    |                   ^^^^^     ------ the lifetime gets resolved as `'_`
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn borrow(&self) -> Ref<'_, T> {
[INFO] [stderr]    |                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&BigInt` instead of cloning the inner type
[INFO] [stderr]     --> src/mp/bignat.rs:1293:32
[INFO] [stderr]      |
[INFO] [stderr] 1293 |             || Ok(value.grab()?.clone().clone()),
[INFO] [stderr]      |                                ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&num_bigint::BigInt` instead of cloning the inner type
[INFO] [stderr]     --> src/mp/bignat.rs:1293:32
[INFO] [stderr]      |
[INFO] [stderr] 1293 |             || Ok(value.grab()?.clone().clone()),
[INFO] [stderr]      |                                ^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `bellperson-nonnative` (lib) generated 3 warnings
[INFO] [stderr] warning: `bellperson-nonnative` (lib test) generated 3 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/bellperson_nonnative-af26db9667d3da00)
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test mp::bignat::tests::carry_4limbs_1carry ... ok
[INFO] [stdout] test mp::bignat::tests::carry_4limbs_trivial ... ok
[INFO] [stdout] test mp::bignat::tests::decomp_5_into_2b_fails ... ok
[INFO] [stdout] test mp::bignat::tests::decomp_255_into_8b ... ok
[INFO] [stdout] test mp::bignat::tests::carry_4limbs_wrong_trivial ... ok
[INFO] [stdout] test mp::bignat::tests::carry_4limbs_2carry ... ok
[INFO] [stdout] test mp::bignat::tests::mult_mod_254_by_254_wrong ... ok
[INFO] [stdout] test mp::bignat::tests::mult_mod_1_by_0 ... ok
[INFO] [stdout] test mp::bignat::tests::mult_mod_1_by_1 ... ok
[INFO] [stdout] test mp::bignat::tests::mult_mod_2_by_2 ... ok
[INFO] [stdout] test mp::bignat::tests::decomp_1_into_2b ... ok
[INFO] [stdout] test mp::bignat::tests::mult_mod_110_by_180_mod187 ... ok
[INFO] [stdout] test mp::bignat::tests::mult_mod_16_by_16 ... ok
[INFO] [stdout] test mp::bignat::tests::carry_4limbs_2carry_wrong ... ok
[INFO] [stdout] test mp::bignat::tests::carry_2limbs_trivial ... ok
[INFO] [stdout] test util::convert::test::test_nat_to_f ... ok
[INFO] [stdout] test util::convert::test::test_usize_to_f ... ok
[INFO] [stdout] test mp::bignat::tests::mult_mod_2w_by_6w ... ok
[INFO] [stdout] test mp::bignat::tests::mult_mod_254_by_254 ... ok
[INFO] [stdout] test mp::poly::tests::test_circuit ... ok
[INFO] [stdout] test util::convert::test::test_f_to_nat ... ok
[INFO] [stdout] test util::convert::test::test_f_to_usize ... ok
[INFO] [stdout] test mp::bignat::tests::decomp_1_into_1b ... ok
[INFO] [stdout] test mp::bignat::tests::mult_mod_2w_by_6w_test_2 ... ok
[INFO] [stdout] test mp::bignat::tests::mult_mod_pallas ... ok
[INFO] [stdout] test mp::bignat::tests::mult_mod_2048x128 ... ok
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/bellperson_nonnative-af26db9667d3da00` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "72101b811832e6c38e11cc315555592d7c7213cba69d2880b55803c524939ce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72101b811832e6c38e11cc315555592d7c7213cba69d2880b55803c524939ce4", kill_on_drop: false }`
[INFO] [stdout] 72101b811832e6c38e11cc315555592d7c7213cba69d2880b55803c524939ce4
