[INFO] fetching crate dusk-bls12_381 0.3.0...
[INFO] checking dusk-bls12_381-0.3.0 against beta for pr-78714
[INFO] extracting crate dusk-bls12_381 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dusk-bls12_381 0.3.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dusk-bls12_381 0.3.0
[INFO] finished tweaking crates.io crate dusk-bls12_381 0.3.0
[INFO] tweaked toml for crates.io crate dusk-bls12_381 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 899fdd22f32d10117138516eaafd53f94d2a21c0ff30fda54fac44670c32ece0
[INFO] running `Command { std: "docker" "start" "-a" "899fdd22f32d10117138516eaafd53f94d2a21c0ff30fda54fac44670c32ece0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "899fdd22f32d10117138516eaafd53f94d2a21c0ff30fda54fac44670c32ece0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "899fdd22f32d10117138516eaafd53f94d2a21c0ff30fda54fac44670c32ece0", kill_on_drop: false }`
[INFO] [stdout] 899fdd22f32d10117138516eaafd53f94d2a21c0ff30fda54fac44670c32ece0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e20ea8589c6d5f884d33b05e3eff7476c2d744cf90c79438c61f9d0a07469d3b
[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" "e20ea8589c6d5f884d33b05e3eff7476c2d744cf90c79438c61f9d0a07469d3b", kill_on_drop: false }`
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking dusk-bls12_381 v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking csv v1.1.4
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Scalar`
[INFO] [stdout]   --> benches/groups.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |         let s = Scalar::from_raw([1, 2, 3, 4]);
[INFO] [stdout]    |                 ^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use crate::multiscalar_mul::Scalar;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Scalar`
[INFO] [stdout]   --> benches/groups.rs:64:17
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let s = Scalar::from_raw([1, 2, 3, 4]);
[INFO] [stdout]    |                 ^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 5  | use crate::multiscalar_mul::Scalar;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Scalar`
[INFO] [stdout]    --> benches/groups.rs:103:17
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let s = Scalar::from_raw([1, 2, 3, 4]);
[INFO] [stdout]     |                 ^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 5   | use crate::multiscalar_mul::Scalar;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Scalar`
[INFO] [stdout]    --> benches/groups.rs:133:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |         let s = Scalar::from_raw([1, 2, 3, 4]);
[INFO] [stdout]     |                 ^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 5   | use crate::multiscalar_mul::Scalar;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dusk-bls12_381`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e20ea8589c6d5f884d33b05e3eff7476c2d744cf90c79438c61f9d0a07469d3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e20ea8589c6d5f884d33b05e3eff7476c2d744cf90c79438c61f9d0a07469d3b", kill_on_drop: false }`
[INFO] [stdout] e20ea8589c6d5f884d33b05e3eff7476c2d744cf90c79438c61f9d0a07469d3b