[INFO] fetching crate enso-flexer 0.1.3...
[INFO] checking enso-flexer-0.1.3 against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] extracting crate enso-flexer 0.1.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate enso-flexer 0.1.3 on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate enso-flexer 0.1.3
[INFO] finished tweaking crates.io crate enso-flexer 0.1.3
[INFO] tweaked toml for crates.io crate enso-flexer 0.1.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 434482e49c13e2f0bed6a9cf55ba3fc38bae514ed6f8000891e30d710c3cbccf
[INFO] running `Command { std: "docker" "start" "-a" "434482e49c13e2f0bed6a9cf55ba3fc38bae514ed6f8000891e30d710c3cbccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "434482e49c13e2f0bed6a9cf55ba3fc38bae514ed6f8000891e30d710c3cbccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "434482e49c13e2f0bed6a9cf55ba3fc38bae514ed6f8000891e30d710c3cbccf", kill_on_drop: false }`
[INFO] [stdout] 434482e49c13e2f0bed6a9cf55ba3fc38bae514ed6f8000891e30d710c3cbccf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c6371832848d3ef597a4e520a42bb1f5e0dbf02ca0b85d961b9030b2aaf855d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7c6371832848d3ef597a4e520a42bb1f5e0dbf02ca0b85d961b9030b2aaf855d", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking nonempty v0.1.5
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking ifmt v0.2.0
[INFO] [stderr]     Checking enso-macro-utils v0.1.1
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.58
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.58
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.58
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.58
[INFO] [stderr]    Compiling enso-shapely-macros v0.1.1
[INFO] [stdout] error[E0277]: expected a `FnOnce<()>` closure, found `()`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/enso-shapely-macros-0.1.1/src/derive_clone_ref.rs:143:43
[INFO] [stdout]     |
[INFO] [stdout] 143 |     is_clone_ref_customization(attr).then(())?;
[INFO] [stdout]     |                                           ^^ expected an `FnOnce<()>` closure, found `()`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `FnOnce<()>` is not implemented for `()`
[INFO] [stdout]     = note: wrap the `()` in a closure with no arguments: `|| { /* code */ }`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `enso-shapely-macros`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7c6371832848d3ef597a4e520a42bb1f5e0dbf02ca0b85d961b9030b2aaf855d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c6371832848d3ef597a4e520a42bb1f5e0dbf02ca0b85d961b9030b2aaf855d", kill_on_drop: false }`
[INFO] [stdout] 7c6371832848d3ef597a4e520a42bb1f5e0dbf02ca0b85d961b9030b2aaf855d