[INFO] fetching crate fawkes-crypto-pairing_ce 0.18.1...
[INFO] checking fawkes-crypto-pairing_ce-0.18.1 against beta for pr-78714
[INFO] extracting crate fawkes-crypto-pairing_ce 0.18.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate fawkes-crypto-pairing_ce 0.18.1 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 fawkes-crypto-pairing_ce 0.18.1
[INFO] finished tweaking crates.io crate fawkes-crypto-pairing_ce 0.18.1
[INFO] tweaked toml for crates.io crate fawkes-crypto-pairing_ce 0.18.1 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 047d41d4dde21f5648bc7af86adf0cb94f34122becc0105d7d29dd09e07c1ca4
[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" "047d41d4dde21f5648bc7af86adf0cb94f34122becc0105d7d29dd09e07c1ca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "047d41d4dde21f5648bc7af86adf0cb94f34122becc0105d7d29dd09e07c1ca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "047d41d4dde21f5648bc7af86adf0cb94f34122becc0105d7d29dd09e07c1ca4", kill_on_drop: false }`
[INFO] [stdout] 047d41d4dde21f5648bc7af86adf0cb94f34122becc0105d7d29dd09e07c1ca4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 89f081b5917fce5ebc940ecf0cb7ceedd2e8790b6d0fbe233e85c8f00e490e6a
[INFO] running `Command { std: "docker" "start" "-a" "89f081b5917fce5ebc940ecf0cb7ceedd2e8790b6d0fbe233e85c8f00e490e6a", kill_on_drop: false }`
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling ff_derive_ce v0.5.1
[INFO] [stderr]     Checking ff_ce v0.7.1
[INFO] [stderr]     Checking fawkes-crypto-pairing_ce v0.18.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `is_in_correct_subgroup_assuming_on_curve`
[INFO] [stdout]    --> src/bn256/ec.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |               fn is_in_correct_subgroup_assuming_on_curve(&self) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 645 | /     curve_impl!(
[INFO] [stdout] 646 | |         "G1",
[INFO] [stdout] 647 | |         G1,
[INFO] [stdout] 648 | |         G1Affine,
[INFO] [stdout] ...   |
[INFO] [stdout] 654 | |         G2Affine
[INFO] [stdout] 655 | |     );
[INFO] [stdout]     | |______- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/pairing_benches.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fawkes-crypto-pairing_ce`
[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] [stdout] warning: associated function is never used: `is_in_correct_subgroup_assuming_on_curve`
[INFO] [stdout]    --> src/bn256/ec.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |               fn is_in_correct_subgroup_assuming_on_curve(&self) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 645 | /     curve_impl!(
[INFO] [stdout] 646 | |         "G1",
[INFO] [stdout] 647 | |         G1,
[INFO] [stdout] 648 | |         G1Affine,
[INFO] [stdout] ...   |
[INFO] [stdout] 654 | |         G2Affine
[INFO] [stdout] 655 | |     );
[INFO] [stdout]     | |______- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "89f081b5917fce5ebc940ecf0cb7ceedd2e8790b6d0fbe233e85c8f00e490e6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89f081b5917fce5ebc940ecf0cb7ceedd2e8790b6d0fbe233e85c8f00e490e6a", kill_on_drop: false }`
[INFO] [stdout] 89f081b5917fce5ebc940ecf0cb7ceedd2e8790b6d0fbe233e85c8f00e490e6a