[INFO] fetching crate enso-flexer 0.1.3...
[INFO] checking enso-flexer-0.1.3 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate enso-flexer 0.1.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate enso-flexer 0.1.3 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enso-logger v0.1.3
[INFO] [stderr]   Downloaded enso-lazy-reader v0.1.2
[INFO] [stderr]   Downloaded enso-automata v0.1.5
[INFO] [stderr]   Downloaded nonempty v0.1.5
[INFO] running `Command { std: "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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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] 03420e3989563661747f41dfe42f4f4b1f52134e194e84c7d761604158c08306
[INFO] running `Command { std: "docker" "start" "-a" "03420e3989563661747f41dfe42f4f4b1f52134e194e84c7d761604158c08306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03420e3989563661747f41dfe42f4f4b1f52134e194e84c7d761604158c08306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03420e3989563661747f41dfe42f4f4b1f52134e194e84c7d761604158c08306", kill_on_drop: false }`
[INFO] [stdout] 03420e3989563661747f41dfe42f4f4b1f52134e194e84c7d761604158c08306
[INFO] running `Command { std: "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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 5a1d3eaabc7f161c0ec901c258f91cdc113c3c29d775becb26773f68b29f461c
[INFO] running `Command { std: "docker" "start" "-a" "5a1d3eaabc7f161c0ec901c258f91cdc113c3c29d775becb26773f68b29f461c", kill_on_drop: false }`
[INFO] [stderr]     Checking nonempty v0.1.5
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.2.50
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.58
[INFO] [stderr]    Compiling enso-macro-utils v0.1.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling ifmt-impl v0.2.0
[INFO] [stderr]    Compiling derivative v1.0.4
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking backtrace v0.3.53
[INFO] [stderr]     Checking nalgebra v0.21.1
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[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" "5a1d3eaabc7f161c0ec901c258f91cdc113c3c29d775becb26773f68b29f461c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a1d3eaabc7f161c0ec901c258f91cdc113c3c29d775becb26773f68b29f461c", kill_on_drop: false }`
[INFO] [stdout] 5a1d3eaabc7f161c0ec901c258f91cdc113c3c29d775becb26773f68b29f461c