[INFO] updating cached repository https://github.com/DrBluefall/Butterbeer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] da49dc707d5030c30a16e203a2dfd68b2c6781f8
[INFO] checking DrBluefall/Butterbeer against try#f149601db42efe10ece8b284ab681fd4a6fcb89c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrBluefall%2FButterbeer" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DrBluefall/Butterbeer on toolchain f149601db42efe10ece8b284ab681fd4a6fcb89c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/DrBluefall/Butterbeer
[INFO] finished tweaking git repo https://github.com/DrBluefall/Butterbeer
[INFO] tweaked toml for git repo https://github.com/DrBluefall/Butterbeer written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/DrBluefall/Butterbeer already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+f149601db42efe10ece8b284ab681fd4a6fcb89c" "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] de9178229b220289c82a5b87cccf05b07953d7208aee5b00870d6c56c496dcc6
[INFO] running `"docker" "start" "-a" "de9178229b220289c82a5b87cccf05b07953d7208aee5b00870d6c56c496dcc6"`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking rmp v0.8.8
[INFO] [stderr]     Checking console v0.9.1
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking better-panic v0.2.0
[INFO] [stderr]     Checking rmpv v0.4.2
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling tokio-macros v0.2.1
[INFO] [stderr]    Compiling async-trait v0.1.22
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking tokio v0.2.6
[INFO] [stderr]     Checking nvim-rs v0.0.1 (https://github.com/KillTheMule/nvim-rs#07fc8a00)
[INFO] [stderr] error[E0424]: expected value, found module `self`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/nvim-rs-be8ec18c7fa103f5/07fc8a0/src/rpc/handler.rs:8:1
[INFO] [stderr]    |
[INFO] [stderr] 8  |   #[async_trait]
[INFO] [stderr]    |   ^^^^^^^^^^^^^^ `self` value is a keyword only available in methods with a `self` parameter
[INFO] [stderr] ...
[INFO] [stderr] 12 | /   async fn handle_request(
[INFO] [stderr] 13 | |     &self,
[INFO] [stderr] 14 | |     _name: String,
[INFO] [stderr] 15 | |     _args: Vec<Value>,
[INFO] [stderr] ...  |
[INFO] [stderr] 18 | |     Err(Value::from("Not implemented"))
[INFO] [stderr] 19 | |   }
[INFO] [stderr]    | |___- this function doesn't have a `self` parameter
[INFO] [stderr] 
[INFO] [stderr] error[E0424]: expected value, found module `self`
[INFO] [stderr]   --> /opt/rustwide/cargo-home/git/checkouts/nvim-rs-be8ec18c7fa103f5/07fc8a0/src/rpc/handler.rs:8:1
[INFO] [stderr]    |
[INFO] [stderr] 8  |   #[async_trait]
[INFO] [stderr]    |   ^^^^^^^^^^^^^^ `self` value is a keyword only available in methods with a `self` parameter
[INFO] [stderr] ...
[INFO] [stderr] 21 | /   async fn handle_notify(
[INFO] [stderr] 22 | |     &self,
[INFO] [stderr] 23 | |     _name: String,
[INFO] [stderr] 24 | |     _args: Vec<Value>,
[INFO] [stderr] 25 | |     _req: Neovim<<Self as Handler>::Writer>,
[INFO] [stderr] 26 | |   ) {
[INFO] [stderr] 27 | |   }
[INFO] [stderr]    | |___- this function doesn't have a `self` parameter
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0424`.
[INFO] [stderr] error: could not compile `nvim-rs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "de9178229b220289c82a5b87cccf05b07953d7208aee5b00870d6c56c496dcc6"`
[INFO] running `"docker" "rm" "-f" "de9178229b220289c82a5b87cccf05b07953d7208aee5b00870d6c56c496dcc6"`
[INFO] [stdout] de9178229b220289c82a5b87cccf05b07953d7208aee5b00870d6c56c496dcc6