[INFO] fetching crate dusk-jubjub 0.14.1...
[INFO] checking dusk-jubjub-0.14.1 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate dusk-jubjub 0.14.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate dusk-jubjub 0.14.1 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate dusk-jubjub 0.14.1
[INFO] finished tweaking crates.io crate dusk-jubjub 0.14.1
[INFO] tweaked toml for crates.io crate dusk-jubjub 0.14.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 115 packages to latest compatible versions
[INFO] [stderr]       Adding blake2 v0.9.2 (available: v0.10.6)
[INFO] [stderr]       Adding bytecheck v0.6.12 (available: v0.8.0)
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.5.1)
[INFO] [stderr]       Adding csv v1.1.6 (available: v1.3.1)
[INFO] [stderr]       Adding rkyv v0.7.45 (available: v0.8.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dusk-bytes v0.1.7
[INFO] [stderr]   Downloaded derive-hex v0.1.2
[INFO] [stderr]   Downloaded dusk-bls12_381 v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f3c106191d03238aec1114d64d081475f14c260b7d7bf4c0fa9fdf8d7147a2f
[INFO] running `Command { std: "docker" "start" "-a" "1f3c106191d03238aec1114d64d081475f14c260b7d7bf4c0fa9fdf8d7147a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f3c106191d03238aec1114d64d081475f14c260b7d7bf4c0fa9fdf8d7147a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f3c106191d03238aec1114d64d081475f14c260b7d7bf4c0fa9fdf8d7147a2f", kill_on_drop: false }`
[INFO] [stdout] 1f3c106191d03238aec1114d64d081475f14c260b7d7bf4c0fa9fdf8d7147a2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6b74ae68edbd776ca9a06ca2bafc05ad7de5a575b8686feff6074c73e18779e
[INFO] running `Command { std: "docker" "start" "-a" "b6b74ae68edbd776ca9a06ca2bafc05ad7de5a575b8686feff6074c73e18779e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]     Checking blake2b_simd v1.0.2
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]    Compiling derive-hex v0.1.2
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking dusk-bytes v0.1.7
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking dusk-bls12_381 v0.13.0
[INFO] [stderr]     Checking blake2 v0.9.2
[INFO] [stderr]     Checking dusk-jubjub v0.14.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.215
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking serde_json v1.0.133
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stdout] error[E0599]: no method named `sqrt` found for struct `BlsScalar` in the current scope
[INFO] [stdout]    --> benches/fq_bench.rs:46:54
[INFO] [stdout]     |
[INFO] [stdout] 46  |     c.bench_function("Fq sqrt", |b| b.iter(move || n.sqrt()));
[INFO] [stdout]     |                                                      ^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/ff-0.13.0/src/lib.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 |     fn sqrt(&self) -> CtOption<Self> {
[INFO] [stdout]     |        ---- the method is available for `BlsScalar` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `Field` which provides `sqrt` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use ff::Field;
[INFO] [stdout]     |
[INFO] [stdout] help: there is a method `sqrt_alt` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 46  |     c.bench_function("Fq sqrt", |b| b.iter(move || n.sqrt_alt()));
[INFO] [stdout]     |                                                      ~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dusk-jubjub` (bench "fq_bench") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b6b74ae68edbd776ca9a06ca2bafc05ad7de5a575b8686feff6074c73e18779e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b74ae68edbd776ca9a06ca2bafc05ad7de5a575b8686feff6074c73e18779e", kill_on_drop: false }`
[INFO] [stdout] b6b74ae68edbd776ca9a06ca2bafc05ad7de5a575b8686feff6074c73e18779e
