[INFO] crate r1cs 0.4.7 is already in cache
[INFO] checking r1cs-0.4.7 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate r1cs 0.4.7 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate r1cs 0.4.7 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate r1cs 0.4.7
[INFO] finished tweaking crates.io crate r1cs 0.4.7
[INFO] tweaked toml for crates.io crate r1cs 0.4.7 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "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] 4d56f6d0b8860d94d11b7855f4683f9e60570f0cbb5e1532bd7fb7acd8929b50
[INFO] running `"docker" "start" "-a" "4d56f6d0b8860d94d11b7855f4683f9e60570f0cbb5e1532bd7fb7acd8929b50"`
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking bimap v0.4.0
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking num-rational v0.2.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking r1cs v0.4.7 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]   --> src/embedded_curve.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     use std::iter;
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str::FromStr`
[INFO] [stderr]   --> src/embedded_curve.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     use std::str::FromStr;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `itertools::assert_equal`
[INFO] [stderr]   --> src/embedded_curve.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     use itertools::assert_equal;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Bls12_381`, `Bn128`, `Element`
[INFO] [stderr]   --> src/embedded_curve.rs:41:24
[INFO] [stderr]    |
[INFO] [stderr] 41 |     use crate::field::{Bn128, Bls12_381, Element};
[INFO] [stderr]    |                        ^^^^^  ^^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]   --> src/curve.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     x: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]   --> src/curve.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     y: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]   --> src/curve.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     x: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]   --> src/curve.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     y: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]   --> src/curve.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     x: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]   --> src/curve.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     y: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `z`
[INFO] [stderr]   --> src/curve.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     z: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]    --> src/curve.rs:261:13
[INFO] [stderr]     |
[INFO] [stderr] 261 |         let p = EdwardsPointExpression::<Bls12_381, JubJub>::from_expressions(
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_p`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p`
[INFO] [stderr]    --> src/curve.rs:281:13
[INFO] [stderr]     |
[INFO] [stderr] 281 |         let p = EdwardsPointExpression::<Bls12_381, JubJub>::from_expressions(
[INFO] [stderr]     |             ^ help: consider prefixing with an underscore: `_p`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `p3`
[INFO] [stderr]    --> src/curve.rs:342:13
[INFO] [stderr]     |
[INFO] [stderr] 342 |         let p3 = EdwardsPointExpression::<Bls12_381, JubJub>::scalar_mult(
[INFO] [stderr]     |             ^^ help: consider prefixing with an underscore: `_p3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `builder`
[INFO] [stderr]   --> src/signature.rs:71:17
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let mut builder = GadgetBuilder::<Bls12_381>::new();
[INFO] [stderr]    |                 ^^^^^^^ help: consider prefixing with an underscore: `_builder`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/signature.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let mut builder = GadgetBuilder::<Bls12_381>::new();
[INFO] [stderr]    |             ----^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]   --> src/curve.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     x: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]   --> src/curve.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     y: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]   --> src/curve.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     x: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]   --> src/curve.rs:68:5
[INFO] [stderr]    |
[INFO] [stderr] 68 |     y: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]   --> src/curve.rs:75:5
[INFO] [stderr]    |
[INFO] [stderr] 75 |     x: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]   --> src/curve.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     y: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `z`
[INFO] [stderr]   --> src/curve.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     z: Expression<F>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.58s
[INFO] running `"docker" "inspect" "4d56f6d0b8860d94d11b7855f4683f9e60570f0cbb5e1532bd7fb7acd8929b50"`
[INFO] running `"docker" "rm" "-f" "4d56f6d0b8860d94d11b7855f4683f9e60570f0cbb5e1532bd7fb7acd8929b50"`
[INFO] [stdout] 4d56f6d0b8860d94d11b7855f4683f9e60570f0cbb5e1532bd7fb7acd8929b50