[INFO] fetching crate r1cs 0.4.7...
[INFO] building r1cs-0.4.7 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3
[INFO] extracting crate r1cs 0.4.7 into /workspace/builds/worker-46/source
[INFO] validating manifest of crates.io crate r1cs 0.4.7 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-46/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8089c866c524ac866ff6877e391c1497475aa81288991d2ec9cd1b6a1c4bd8b3
[INFO] running `Command { std: "docker" "start" "-a" "8089c866c524ac866ff6877e391c1497475aa81288991d2ec9cd1b6a1c4bd8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8089c866c524ac866ff6877e391c1497475aa81288991d2ec9cd1b6a1c4bd8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8089c866c524ac866ff6877e391c1497475aa81288991d2ec9cd1b6a1c4bd8b3", kill_on_drop: false }`
[INFO] [stdout] 8089c866c524ac866ff6877e391c1497475aa81288991d2ec9cd1b6a1c4bd8b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e5d7da54254d51823082856f424be909be91ad6f6c7f786b5f6a839e8b49c8a
[INFO] running `Command { std: "docker" "start" "-a" "4e5d7da54254d51823082856f424be909be91ad6f6c7f786b5f6a839e8b49c8a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling bimap v0.4.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling r1cs v0.4.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/curve.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     x: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/curve.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     y: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/curve.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     x: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/curve.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     y: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/curve.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     x: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/curve.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     y: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `z`
[INFO] [stdout]   --> src/curve.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     z: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.06s
[INFO] running `Command { std: "docker" "inspect" "4e5d7da54254d51823082856f424be909be91ad6f6c7f786b5f6a839e8b49c8a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e5d7da54254d51823082856f424be909be91ad6f6c7f786b5f6a839e8b49c8a", kill_on_drop: false }`
[INFO] [stdout] 4e5d7da54254d51823082856f424be909be91ad6f6c7f786b5f6a839e8b49c8a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2d703fba8e6b0465061fa616bf0962a3ed0067fbe5a897c96691143026e6b13
[INFO] running `Command { std: "docker" "start" "-a" "f2d703fba8e6b0465061fa616bf0962a3ed0067fbe5a897c96691143026e6b13", kill_on_drop: false }`
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/curve.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     x: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/curve.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     y: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/curve.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     x: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/curve.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     y: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/curve.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     x: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/curve.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     y: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `z`
[INFO] [stdout]   --> src/curve.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     z: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling r1cs v0.4.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter`
[INFO] [stdout]   --> src/embedded_curve.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     use std::iter;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::FromStr`
[INFO] [stdout]   --> src/embedded_curve.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     use std::str::FromStr;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::assert_equal`
[INFO] [stdout]   --> src/embedded_curve.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     use itertools::assert_equal;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Bls12_381`, `Bn128`, `Element`
[INFO] [stdout]   --> src/embedded_curve.rs:41:24
[INFO] [stdout]    |
[INFO] [stdout] 41 |     use crate::field::{Bn128, Bls12_381, Element};
[INFO] [stdout]    |                        ^^^^^  ^^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/curve.rs:261:13
[INFO] [stdout]     |
[INFO] [stdout] 261 |         let p = EdwardsPointExpression::<Bls12_381, JubJub>::from_expressions(
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/curve.rs:281:13
[INFO] [stdout]     |
[INFO] [stdout] 281 |         let p = EdwardsPointExpression::<Bls12_381, JubJub>::from_expressions(
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p3`
[INFO] [stdout]    --> src/curve.rs:342:13
[INFO] [stdout]     |
[INFO] [stdout] 342 |         let p3 = EdwardsPointExpression::<Bls12_381, JubJub>::scalar_mult(
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_p3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `builder`
[INFO] [stdout]   --> src/signature.rs:71:17
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let mut builder = GadgetBuilder::<Bls12_381>::new();
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_builder`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/signature.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let mut builder = GadgetBuilder::<Bls12_381>::new();
[INFO] [stdout]    |             ----^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/curve.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     x: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/curve.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     y: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/curve.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     x: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/curve.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     y: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]   --> src/curve.rs:75:5
[INFO] [stdout]    |
[INFO] [stdout] 75 |     x: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]   --> src/curve.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     y: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `z`
[INFO] [stdout]   --> src/curve.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 77 |     z: Expression<F>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 21.20s
[INFO] running `Command { std: "docker" "inspect" "f2d703fba8e6b0465061fa616bf0962a3ed0067fbe5a897c96691143026e6b13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2d703fba8e6b0465061fa616bf0962a3ed0067fbe5a897c96691143026e6b13", kill_on_drop: false }`
[INFO] [stdout] f2d703fba8e6b0465061fa616bf0962a3ed0067fbe5a897c96691143026e6b13