[INFO] cloning repository https://github.com/dusk-network/plonk_gadgets
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dusk-network/plonk_gadgets" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdusk-network%2Fplonk_gadgets", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdusk-network%2Fplonk_gadgets'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db30b6ea40a0a2aa96c157b0cff73ba01a8b7f5e
[INFO] checking dusk-network/plonk_gadgets against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdusk-network%2Fplonk_gadgets" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dusk-network/plonk_gadgets on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dusk-network/plonk_gadgets
[INFO] finished tweaking git repo https://github.com/dusk-network/plonk_gadgets
[INFO] tweaked toml for git repo https://github.com/dusk-network/plonk_gadgets written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dusk-jubjub v0.3.6
[INFO] [stderr]   Downloaded dusk-plonk v0.2.7
[INFO] [stderr]   Downloaded dusk-bls12_381 v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 021843a88f8bd78c5d360da40f46e7d1943c1a5b248e7a40817fe04308b552ed
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "021843a88f8bd78c5d360da40f46e7d1943c1a5b248e7a40817fe04308b552ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "021843a88f8bd78c5d360da40f46e7d1943c1a5b248e7a40817fe04308b552ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "021843a88f8bd78c5d360da40f46e7d1943c1a5b248e7a40817fe04308b552ed", kill_on_drop: false }`
[INFO] [stdout] 021843a88f8bd78c5d360da40f46e7d1943c1a5b248e7a40817fe04308b552ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18d085b5b52acb85fda24b3d9eb1eb5eded23fdddd0dfcf19540417a049d09f7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "18d085b5b52acb85fda24b3d9eb1eb5eded23fdddd0dfcf19540417a049d09f7", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]     Checking blake2 v0.9.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking dusk-bls12_381 v0.1.3
[INFO] [stderr]    Compiling zeroize_derive v1.0.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking dusk-jubjub v0.3.6
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking merlin v2.0.0
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking dusk-plonk v0.2.7
[INFO] [stderr]     Checking plonk_gadgets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/gadgets/scalar/scalar.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `NonExistingInverse`
[INFO] [stdout]  --> src/gadgets/errors.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     NonExistingInverse,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `allocate`
[INFO] [stdout]   --> src/gadgets/scalar/range.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn allocate(composer: &mut StandardComposer, scalar: BlsScalar) -> AllocatedScalar {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `range_proof`
[INFO] [stdout]   --> src/gadgets/scalar/range.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn range_proof(composer: &mut StandardComposer, value: AllocatedScalar, num_bits: u64) -> Variable {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `range_check`
[INFO] [stdout]   --> src/gadgets/scalar/range.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn range_check(
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `min_bound`
[INFO] [stdout]   --> src/gadgets/scalar/range.rs:61:4
[INFO] [stdout]    |
[INFO] [stdout] 61 | fn min_bound(
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `max_bound`
[INFO] [stdout]   --> src/gadgets/scalar/range.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn max_bound(
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `maybe_equal`
[INFO] [stdout]    --> src/gadgets/scalar/range.rs:124:4
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn maybe_equal(
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `scalar_decomposition_gadget`
[INFO] [stdout]    --> src/gadgets/scalar/range.rs:167:4
[INFO] [stdout]     |
[INFO] [stdout] 167 | fn scalar_decomposition_gadget(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `scalar_to_bits`
[INFO] [stdout]    --> src/gadgets/scalar/range.rs:217:4
[INFO] [stdout]     |
[INFO] [stdout] 217 | fn scalar_to_bits(scalar: &BlsScalar) -> [u8; 256] {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bits_count`
[INFO] [stdout]    --> src/gadgets/scalar/range.rs:229:4
[INFO] [stdout]     |
[INFO] [stdout] 229 | fn bits_count(mut scalar: BlsScalar) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `num_bits_closest_power_of_two`
[INFO] [stdout]    --> src/gadgets/scalar/range.rs:241:4
[INFO] [stdout]     |
[INFO] [stdout] 241 | fn num_bits_closest_power_of_two(scalar: BlsScalar) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `conditionally_select_zero`
[INFO] [stdout]   --> src/gadgets/scalar/scalar.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn conditionally_select_zero(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `conditionally_select_one`
[INFO] [stdout]   --> src/gadgets/scalar/scalar.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn conditionally_select_one(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_non_zero`
[INFO] [stdout]   --> src/gadgets/scalar/scalar.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub fn is_non_zero(
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.30s
[INFO] running `Command { std: "docker" "inspect" "18d085b5b52acb85fda24b3d9eb1eb5eded23fdddd0dfcf19540417a049d09f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18d085b5b52acb85fda24b3d9eb1eb5eded23fdddd0dfcf19540417a049d09f7", kill_on_drop: false }`
[INFO] [stdout] 18d085b5b52acb85fda24b3d9eb1eb5eded23fdddd0dfcf19540417a049d09f7