[INFO] crate starling 3.1.2 is already in cache
[INFO] checking starling-3.1.2 against master#2da942f32802c8233a09744024dfbc34431adf65 for pr-66963
[INFO] extracting crate starling 3.1.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate starling 3.1.2 on toolchain 2da942f32802c8233a09744024dfbc34431adf65
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate starling 3.1.2
[INFO] finished tweaking crates.io crate starling 3.1.2
[INFO] tweaked toml for crates.io crate starling 3.1.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate starling 3.1.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+2da942f32802c8233a09744024dfbc34431adf65" "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] 81e8dbc9e3edaa684deb0d295919acfb8356761d6cd141d5b432a975815aaaf2
[INFO] running `"docker" "start" "-a" "81e8dbc9e3edaa684deb0d295919acfb8356761d6cd141d5b432a975815aaaf2"`
[INFO] [stderr]    Compiling starling v3.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/utils/tree_utils.rs:174:29
[INFO] [stderr]     |
[INFO] [stderr] 174 | ) -> BinaryMerkleTreeResult<(HashSet<usize>)> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking rayon-core v1.6.0
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/utils/tree_utils.rs:174:29
[INFO] [stderr]     |
[INFO] [stderr] 174 | ) -> BinaryMerkleTreeResult<(HashSet<usize>)> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.53s
[INFO] running `"docker" "inspect" "81e8dbc9e3edaa684deb0d295919acfb8356761d6cd141d5b432a975815aaaf2"`
[INFO] running `"docker" "rm" "-f" "81e8dbc9e3edaa684deb0d295919acfb8356761d6cd141d5b432a975815aaaf2"`
[INFO] [stdout] 81e8dbc9e3edaa684deb0d295919acfb8356761d6cd141d5b432a975815aaaf2