[INFO] fetching crate cks_accumulator 0.1.2...
[INFO] checking cks_accumulator-0.1.2 against master#212aa3ea28d91a97d1e1261709c0b6e6790788e6 for pr-69340
[INFO] extracting crate cks_accumulator 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cks_accumulator 0.1.2 on toolchain 212aa3ea28d91a97d1e1261709c0b6e6790788e6
[INFO] running `"/workspace/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cks_accumulator 0.1.2
[INFO] finished tweaking crates.io crate cks_accumulator 0.1.2
[INFO] tweaked toml for crates.io crate cks_accumulator 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+212aa3ea28d91a97d1e1261709c0b6e6790788e6" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7452be65f536f723aab256e0e95dc21a143e64be1768e18ab8b1bc0e409755ec
[INFO] running `"docker" "start" "-a" "7452be65f536f723aab256e0e95dc21a143e64be1768e18ab8b1bc0e409755ec"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking zeroize v1.1.0
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]     Checking miracl_amcl v3.2.5
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking subtle-encoding v0.5.1
[INFO] [stderr]     Checking amcl_wrapper v0.3.5
[INFO] [stderr]     Checking cks_accumulator v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `generate_entries_from_trapdoor`
[INFO] [stderr]    --> src/accumulator.rs:118:4
[INFO] [stderr]     |
[INFO] [stderr] 118 | fn generate_entries_from_trapdoor(size: usize, label: &[u8], gamma: &FieldElement) -> (G1Vector, G2Vector, GT) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/accumulator.rs:192:5
[INFO] [stderr]     |
[INFO] [stderr] 192 |     fn new(size: usize, label: &[u8]) -> (InMemoryAccumulatorEntries, FieldElement, GT) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `witness` is never read
[INFO] [stderr]    --> src/accumulator.rs:567:17
[INFO] [stderr]     |
[INFO] [stderr] 567 |         let mut witness: Option<Witness> = None;
[INFO] [stderr]     |                 ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.09s
[INFO] running `"docker" "inspect" "7452be65f536f723aab256e0e95dc21a143e64be1768e18ab8b1bc0e409755ec"`
[INFO] running `"docker" "rm" "-f" "7452be65f536f723aab256e0e95dc21a143e64be1768e18ab8b1bc0e409755ec"`
[INFO] [stdout] 7452be65f536f723aab256e0e95dc21a143e64be1768e18ab8b1bc0e409755ec