[INFO] fetching crate eth_pairings 0.2.0...
[INFO] testing eth_pairings-0.2.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate eth_pairings 0.2.0 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate eth_pairings 0.2.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate eth_pairings 0.2.0
[INFO] finished tweaking crates.io crate eth_pairings 0.2.0
[INFO] tweaked toml for crates.io crate eth_pairings 0.2.0 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 803f7877d361ce9531f3d91a0fd7f48a184340e858b4e07e6236d91f41db4068
[INFO] running `Command { std: "docker" "start" "-a" "803f7877d361ce9531f3d91a0fd7f48a184340e858b4e07e6236d91f41db4068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "803f7877d361ce9531f3d91a0fd7f48a184340e858b4e07e6236d91f41db4068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "803f7877d361ce9531f3d91a0fd7f48a184340e858b4e07e6236d91f41db4068", kill_on_drop: false }`
[INFO] [stdout] 803f7877d361ce9531f3d91a0fd7f48a184340e858b4e07e6236d91f41db4068
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b6d49ed3d30136dcc2b7ef6fcb2aa45e0c172df21176ef22114cd0c8a2f2089
[INFO] running `Command { std: "docker" "start" "-a" "2b6d49ed3d30136dcc2b7ef6fcb2aa45e0c172df21176ef22114cd0c8a2f2089", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling eth_pairings_repr_derive v0.1.0
[INFO] [stderr]    Compiling eth_pairings v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/public_interface/g1_ops.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |         })?;;
[INFO] [stdout]    |             ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/public_interface/g1_ops.rs:110:13
[INFO] [stdout]     |
[INFO] [stdout] 110 |         })?;;
[INFO] [stdout]     |             ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_scalars`
[INFO] [stdout]   --> src/sliding_window_exp.rs:30:49
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(base: &F, one: F, window: usize, num_scalars: usize) -> Self {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_scalars`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `eth_pairings`; 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name eth_pairings --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=d2ce3bbc75f552a6 -C extra-filename=-d2ce3bbc75f552a6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-614d7e4e7f7903e2.rmeta --extern eth_pairings_repr_derive=/opt/rustwide/target/debug/deps/libeth_pairings_repr_derive-b606b6cf179163de.so --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-86422d76b8bd90ed.rmeta --extern num_bigint=/opt/rustwide/target/debug/deps/libnum_bigint-2e0c10003104c405.rmeta --extern num_integer=/opt/rustwide/target/debug/deps/libnum_integer-64bfb6aabf0b0609.rmeta --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-c8218129049a6c67.rmeta --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "2b6d49ed3d30136dcc2b7ef6fcb2aa45e0c172df21176ef22114cd0c8a2f2089", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b6d49ed3d30136dcc2b7ef6fcb2aa45e0c172df21176ef22114cd0c8a2f2089", kill_on_drop: false }`
[INFO] [stdout] 2b6d49ed3d30136dcc2b7ef6fcb2aa45e0c172df21176ef22114cd0c8a2f2089