[INFO] fetching crate dusk-jubjub 0.13.1...
[INFO] checking dusk-jubjub-0.13.1 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate dusk-jubjub 0.13.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate dusk-jubjub 0.13.1 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate dusk-jubjub 0.13.1
[INFO] finished tweaking crates.io crate dusk-jubjub 0.13.1
[INFO] tweaked toml for crates.io crate dusk-jubjub 0.13.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive-hex v0.1.2
[INFO] [stderr]   Downloaded dusk-bytes v0.1.7
[INFO] [stderr]   Downloaded dusk-bls12_381 v0.12.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11fa91b667dd99c71d69861d2ebff90d4ee31afd74f235d1862bdca3904dcc7f
[INFO] running `Command { std: "docker" "start" "-a" "11fa91b667dd99c71d69861d2ebff90d4ee31afd74f235d1862bdca3904dcc7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11fa91b667dd99c71d69861d2ebff90d4ee31afd74f235d1862bdca3904dcc7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11fa91b667dd99c71d69861d2ebff90d4ee31afd74f235d1862bdca3904dcc7f", kill_on_drop: false }`
[INFO] [stdout] 11fa91b667dd99c71d69861d2ebff90d4ee31afd74f235d1862bdca3904dcc7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cab6e8a9d445748922b7ec181625aa90b2b8231e3f02f802fa6873f19aa82077
[INFO] running `Command { std: "docker" "start" "-a" "cab6e8a9d445748922b7ec181625aa90b2b8231e3f02f802fa6873f19aa82077", kill_on_drop: false }`
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking plotters-backend v0.3.5
[INFO] [stderr]     Checking serde_json v1.0.108
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]    Compiling syn v2.0.42
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking plotters-svg v0.3.5
[INFO] [stderr]     Checking walkdir v2.4.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking bstr v0.2.17
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking plotters v0.3.5
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking blake2 v0.9.2
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling derive-hex v0.1.2
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking dusk-bytes v0.1.7
[INFO] [stderr]     Checking dusk-bls12_381 v0.12.3
[INFO] [stderr]     Checking dusk-jubjub v0.13.1 (/opt/rustwide/workdir)
[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]     |                                                      ^^^^ method not found in `BlsScalar`
[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: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   + use ff::Field;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[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 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "cab6e8a9d445748922b7ec181625aa90b2b8231e3f02f802fa6873f19aa82077", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cab6e8a9d445748922b7ec181625aa90b2b8231e3f02f802fa6873f19aa82077", kill_on_drop: false }`
[INFO] [stdout] cab6e8a9d445748922b7ec181625aa90b2b8231e3f02f802fa6873f19aa82077
