[INFO] cloning repository https://github.com/QED-it/zkinterface-bellman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/QED-it/zkinterface-bellman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQED-it%2Fzkinterface-bellman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQED-it%2Fzkinterface-bellman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a274f5b0af992ff8b1af8b05d18062d95836869e
[INFO] testing QED-it/zkinterface-bellman against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQED-it%2Fzkinterface-bellman" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/QED-it/zkinterface-bellman on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/QED-it/zkinterface-bellman
[INFO] finished tweaking git repo https://github.com/QED-it/zkinterface-bellman
[INFO] tweaked toml for git repo https://github.com/QED-it/zkinterface-bellman written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/QED-it/zkinterface-bellman already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] a8b2864e9f2395926c996e7557e3e54e42aecfc04259590e40f1101f44d9fd4a
[INFO] running `Command { std: "docker" "start" "-a" "a8b2864e9f2395926c996e7557e3e54e42aecfc04259590e40f1101f44d9fd4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8b2864e9f2395926c996e7557e3e54e42aecfc04259590e40f1101f44d9fd4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8b2864e9f2395926c996e7557e3e54e42aecfc04259590e40f1101f44d9fd4a", kill_on_drop: false }`
[INFO] [stdout] a8b2864e9f2395926c996e7557e3e54e42aecfc04259590e40f1101f44d9fd4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--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] 32169122dba0b49e0a664de0a894f21c15868a3a9c130891d4cf88322ecdc11f
[INFO] running `Command { std: "docker" "start" "-a" "32169122dba0b49e0a664de0a894f21c15868a3a9c130891d4cf88322ecdc11f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling radium v0.4.1
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling funty v1.0.1
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling subtle v2.3.0
[INFO] [stderr]    Compiling regex v1.1.5
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling constant_time_eq v0.1.3
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling dtoa v0.4.6
[INFO] [stderr]    Compiling futures v0.1.26
[INFO] [stderr]    Compiling smallvec v0.6.9
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling regex-syntax v0.6.6
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling flatbuffers v0.5.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling blake2s_simd v0.5.10
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling bitvec v0.18.4
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling ff v0.8.0
[INFO] [stderr]    Compiling group v0.8.0
[INFO] [stderr]    Compiling pairing v0.18.0
[INFO] [stderr]    Compiling bls12_381 v0.3.1
[INFO] [stderr]    Compiling bellman v0.8.0
[INFO] [stdout] error[E0277]: cannot multiply-assign `<E as Engine>::Fr` by `&&<E as Engine>::Fr`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bellman-0.8.0/src/groth16/generator.rs:401:39
[INFO] [stdout]     |
[INFO] [stdout] 401 |                         at.mul_assign(&beta);
[INFO] [stdout]     |                                       ^^^^^ no implementation for `<E as Engine>::Fr *= &&<E as Engine>::Fr`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `MulAssign<&&<E as Engine>::Fr>` is not implemented for `<E as Engine>::Fr`
[INFO] [stdout] help: consider further restricting the associated type
[INFO] [stdout]     |
[INFO] [stdout] 331 |     ) where <E as Engine>::Fr: MulAssign<&&<E as Engine>::Fr> {
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot multiply-assign `<E as Engine>::Fr` by `&&<E as Engine>::Fr`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/bellman-0.8.0/src/groth16/generator.rs:402:39
[INFO] [stdout]     |
[INFO] [stdout] 402 |                         bt.mul_assign(&alpha);
[INFO] [stdout]     |                                       ^^^^^^ no implementation for `<E as Engine>::Fr *= &&<E as Engine>::Fr`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `MulAssign<&&<E as Engine>::Fr>` is not implemented for `<E as Engine>::Fr`
[INFO] [stdout] help: consider further restricting the associated type
[INFO] [stdout]     |
[INFO] [stdout] 331 |     ) where <E as Engine>::Fr: MulAssign<&&<E as Engine>::Fr> {
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bellman`
[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" "32169122dba0b49e0a664de0a894f21c15868a3a9c130891d4cf88322ecdc11f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32169122dba0b49e0a664de0a894f21c15868a3a9c130891d4cf88322ecdc11f", kill_on_drop: false }`
[INFO] [stdout] 32169122dba0b49e0a664de0a894f21c15868a3a9c130891d4cf88322ecdc11f