[INFO] fetching crate gilrs 0.7.2...
[INFO] checking gilrs-0.7.2 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate gilrs 0.7.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate gilrs 0.7.2 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate gilrs 0.7.2
[INFO] finished tweaking crates.io crate gilrs 0.7.2
[INFO] tweaked toml for crates.io crate gilrs 0.7.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate gilrs 0.7.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5ff47ece8cdc1f118f9f29827f80e94a47a9b0ef4c6018bd1a1126a1395de176
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "5ff47ece8cdc1f118f9f29827f80e94a47a9b0ef4c6018bd1a1126a1395de176"`
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking nix v0.11.1
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking gilrs-core v0.2.3
[INFO] [stderr]     Checking gilrs v0.7.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `core::num::<impl usize>::wrapping_add` that must be used
[INFO] [stderr]    --> examples/ff_pos.rs:133:21
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     model.wrapping_add(1);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.44s
[INFO] running `"docker" "inspect" "5ff47ece8cdc1f118f9f29827f80e94a47a9b0ef4c6018bd1a1126a1395de176"`
[INFO] running `"docker" "rm" "-f" "5ff47ece8cdc1f118f9f29827f80e94a47a9b0ef4c6018bd1a1126a1395de176"`
[INFO] [stdout] 5ff47ece8cdc1f118f9f29827f80e94a47a9b0ef4c6018bd1a1126a1395de176