[INFO] crate wasmtime-wiggle-macro 0.19.1 is already in cache
[INFO] testing wasmtime-wiggle-macro-0.19.1 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate wasmtime-wiggle-macro 0.19.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate wasmtime-wiggle-macro 0.19.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmtime-wiggle-macro 0.19.1
[INFO] finished tweaking crates.io crate wasmtime-wiggle-macro 0.19.1
[INFO] tweaked toml for crates.io crate wasmtime-wiggle-macro 0.19.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06c4aba5fa015d9b1eb89162926c22e77186098884b1c0ecdee55423aad3e8d2
[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" "06c4aba5fa015d9b1eb89162926c22e77186098884b1c0ecdee55423aad3e8d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06c4aba5fa015d9b1eb89162926c22e77186098884b1c0ecdee55423aad3e8d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06c4aba5fa015d9b1eb89162926c22e77186098884b1c0ecdee55423aad3e8d2", kill_on_drop: false }`
[INFO] [stdout] 06c4aba5fa015d9b1eb89162926c22e77186098884b1c0ecdee55423aad3e8d2
[INFO] running `Command { std: "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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4204ca1020c28087f7e91aca991adb870aca779e164d19cf8e1025beaee0178
[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" "d4204ca1020c28087f7e91aca991adb870aca779e164d19cf8e1025beaee0178", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling witx v0.8.6
[INFO] [stderr]    Compiling wiggle-generate v0.19.0
[INFO] [stderr]    Compiling wasmtime-wiggle-macro v0.19.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: `syn::Path` doesn't implement `std::fmt::Debug`
[INFO] [stdout]    --> src/config.rs:149:5
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub path: Path,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ `syn::Path` cannot be formatted using `{:?}` because it doesn't implement `std::fmt::Debug`
[INFO] [stdout]     |
[INFO] [stdout]     = help: the trait `std::fmt::Debug` is not implemented for `syn::Path`
[INFO] [stdout]     = note: required because of the requirements on the impl of `std::fmt::Debug` for `&syn::Path`
[INFO] [stdout]     = note: required for the cast to the object type `dyn std::fmt::Debug`
[INFO] [stdout]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[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 `wasmtime-wiggle-macro`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d4204ca1020c28087f7e91aca991adb870aca779e164d19cf8e1025beaee0178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4204ca1020c28087f7e91aca991adb870aca779e164d19cf8e1025beaee0178", kill_on_drop: false }`
[INFO] [stdout] d4204ca1020c28087f7e91aca991adb870aca779e164d19cf8e1025beaee0178