[INFO] crate em 0.3.0 is already in cache
[INFO] checking em-0.3.0 against master#2da942f32802c8233a09744024dfbc34431adf65 for pr-66963
[INFO] extracting crate em 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate em 0.3.0 on toolchain 2da942f32802c8233a09744024dfbc34431adf65
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate em 0.3.0
[INFO] finished tweaking crates.io crate em 0.3.0
[INFO] tweaked toml for crates.io crate em 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] e9069fbf3f11d544b7df9c5f49902b39e2b98c7497ab604aa8653d92e09bc9f2
[INFO] running `"docker" "start" "-a" "e9069fbf3f11d544b7df9c5f49902b39e2b98c7497ab604aa8653d92e09bc9f2"`
[INFO] [stderr]    Compiling emu_macro v0.1.0
[INFO] [stderr] error[E0277]: the trait bound `syn::Expr: std::convert::From<quote::__rt::TokenStream>` is not satisfied
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/emu_macro-0.1.0/src/passing.rs:338:38
[INFO] [stderr]     |
[INFO] [stderr] 338 |                     i.args.insert(0, gpu_ident);
[INFO] [stderr]     |                                      ^^^^^^^^^ the trait `std::convert::From<quote::__rt::TokenStream>` is not implemented for `syn::Expr`
[INFO] [stderr]     |
[INFO] [stderr]     = help: the following implementations were found:
[INFO] [stderr]               <syn::Expr as std::convert::From<syn::ExprArray>>
[INFO] [stderr]               <syn::Expr as std::convert::From<syn::ExprAssign>>
[INFO] [stderr]               <syn::Expr as std::convert::From<syn::ExprAssignOp>>
[INFO] [stderr]               <syn::Expr as std::convert::From<syn::ExprAsync>>
[INFO] [stderr]             and 35 others
[INFO] [stderr]     = note: required because of the requirements on the impl of `std::convert::Into<syn::Expr>` for `quote::__rt::TokenStream`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `emu_macro`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e9069fbf3f11d544b7df9c5f49902b39e2b98c7497ab604aa8653d92e09bc9f2"`
[INFO] running `"docker" "rm" "-f" "e9069fbf3f11d544b7df9c5f49902b39e2b98c7497ab604aa8653d92e09bc9f2"`
[INFO] [stdout] e9069fbf3f11d544b7df9c5f49902b39e2b98c7497ab604aa8653d92e09bc9f2