[INFO] crate modbot 0.2.0 is already in cache
[INFO] checking modbot-0.2.0 against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037
[INFO] extracting crate modbot 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate modbot 0.2.0 on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate modbot 0.2.0
[INFO] finished tweaking crates.io crate modbot 0.2.0
[INFO] tweaked toml for crates.io crate modbot 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 71195b4a408fd2213b9545700a3db75ec293bab078d996d745d3e17a08960b4d
[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" "71195b4a408fd2213b9545700a3db75ec293bab078d996d745d3e17a08960b4d"`
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling serenity v0.6.4
[INFO] [stderr]     Checking uwl v0.4.2
[INFO] [stderr]    Compiling libsqlite3-sys v0.12.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.0
[INFO] [stderr]     Checking sct v0.5.0
[INFO] [stderr]     Checking webpki v0.19.1
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]    Compiling command_attr v0.1.7
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking tungstenite v0.6.1
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]     Checking ct-logs v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.10.0
[INFO] [stderr]     Checking rustls v0.15.2
[INFO] [stderr]     Checking webpki-roots v0.16.0
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.3
[INFO] [stderr]    Compiling r2d2 v0.8.8
[INFO] [stderr]     Checking tokio-rustls v0.9.4
[INFO] [stderr]     Checking hyper-rustls v0.16.1
[INFO] [stderr]     Checking reqwest v0.9.19
[INFO] [stderr]    Compiling diesel v1.4.3
[INFO] [stderr]     Checking dbl-rs v0.1.1
[INFO] [stderr]     Checking modio v0.4.0
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr] error[E0432]: unresolved import `command_attr::group_options`
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serenity-0.6.4/src/framework/standard/mod.rs:3:44
[INFO] [stderr]   |
[INFO] [stderr] 3 |     pub use command_attr::{command, group, group_options, help, check};
[INFO] [stderr]   |                                            ^^^^^^^^^^^^^ no `group_options` in the root
[INFO] [stderr] 
[INFO] [stderr]    Compiling vergen v3.0.4
[INFO] [stderr]    Compiling modbot v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `serenity`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "71195b4a408fd2213b9545700a3db75ec293bab078d996d745d3e17a08960b4d"`
[INFO] running `"docker" "rm" "-f" "71195b4a408fd2213b9545700a3db75ec293bab078d996d745d3e17a08960b4d"`
[INFO] [stdout] 71195b4a408fd2213b9545700a3db75ec293bab078d996d745d3e17a08960b4d