[INFO] crate generator 0.6.19 is already in cache
[INFO] checking generator-0.6.19 against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] extracting crate generator 0.6.19 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate generator 0.6.19 on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate generator 0.6.19
[INFO] finished tweaking crates.io crate generator 0.6.19
[INFO] tweaked toml for crates.io crate generator 0.6.19 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate generator 0.6.19 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f14e886363c4798b6db0143a864ecf947820ab5a0ac7fead6532dfa84a469c9c
[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" "f14e886363c4798b6db0143a864ecf947820ab5a0ac7fead6532dfa84a469c9c"`
[INFO] [stderr]    Compiling generator v0.6.19 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> examples/get_yield.rs:18:22
[INFO] [stderr]    |
[INFO] [stderr] 18 |     let mut s = Gn::<(u32)>::new(|| sum(1));
[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 3.17s
[INFO] running `"docker" "inspect" "f14e886363c4798b6db0143a864ecf947820ab5a0ac7fead6532dfa84a469c9c"`
[INFO] running `"docker" "rm" "-f" "f14e886363c4798b6db0143a864ecf947820ab5a0ac7fead6532dfa84a469c9c"`
[INFO] [stdout] f14e886363c4798b6db0143a864ecf947820ab5a0ac7fead6532dfa84a469c9c