[INFO] fetching crate grin_chain 3.0.0...
[INFO] checking grin_chain-3.0.0 against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] extracting crate grin_chain 3.0.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate grin_chain 3.0.0 on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate grin_chain 3.0.0
[INFO] finished tweaking crates.io crate grin_chain 3.0.0
[INFO] tweaked toml for crates.io crate grin_chain 3.0.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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] 3d2a518044df0430578cc2cb1c311d16075c839da678b6889d50bbdaebd40168
[INFO] running `"docker" "start" "-a" "3d2a518044df0430578cc2cb1c311d16075c839da678b6889d50bbdaebd40168"`
[INFO] [stderr]     Checking grin_store v3.0.0
[INFO] [stderr]     Checking grin_chain v3.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/txhashset/txhashset.rs:1011:53
[INFO] [stderr]      |
[INFO] [stderr] 1011 |     fn apply_output(&mut self, out: &Output) -> Result<(u64), Error> {
[INFO] [stderr]      |                                                        ^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/txhashset/txhashset.rs:1232:14
[INFO] [stderr]      |
[INFO] [stderr] 1232 |     ) -> Result<((Commitment, Commitment)), Error> {
[INFO] [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/txhashset/txhashset.rs:1256:14
[INFO] [stderr]      |
[INFO] [stderr] 1256 |     ) -> Result<((Commitment, Commitment)), Error> {
[INFO] [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/txhashset/txhashset.rs:1011:53
[INFO] [stderr]      |
[INFO] [stderr] 1011 |     fn apply_output(&mut self, out: &Output) -> Result<(u64), Error> {
[INFO] [stderr]      |                                                        ^^^^^ help: remove these parentheses
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/txhashset/txhashset.rs:1232:14
[INFO] [stderr]      |
[INFO] [stderr] 1232 |     ) -> Result<((Commitment, Commitment)), Error> {
[INFO] [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]     --> src/txhashset/txhashset.rs:1256:14
[INFO] [stderr]      |
[INFO] [stderr] 1256 |     ) -> Result<((Commitment, Commitment)), Error> {
[INFO] [stderr]      |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.02s
[INFO] running `"docker" "inspect" "3d2a518044df0430578cc2cb1c311d16075c839da678b6889d50bbdaebd40168"`
[INFO] running `"docker" "rm" "-f" "3d2a518044df0430578cc2cb1c311d16075c839da678b6889d50bbdaebd40168"`
[INFO] [stdout] 3d2a518044df0430578cc2cb1c311d16075c839da678b6889d50bbdaebd40168