[INFO] updating cached repository https://github.com/adamhass/windower
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] 609e8d4b83e8f24b771b86532e684e3cb4fc2f22
[INFO] checking adamhass/windower against try#8d67a66581ea5498d7ac03b8f88a478d8ec75cf0 for pr-64564
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadamhass%2Fwindower" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adamhass/windower on toolchain 8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/adamhass/windower
[INFO] removed path dependency kompact from git repo https://github.com/adamhass/windower
[INFO] removed path dependency runtime from git repo https://github.com/adamhass/windower
[INFO] finished tweaking git repo https://github.com/adamhass/windower
[INFO] tweaked toml for git repo https://github.com/adamhass/windower written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/adamhass/windower already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (kompact) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (runtime) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (kompact) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (runtime) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+8d67a66581ea5498d7ac03b8f88a478d8ec75cf0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ec80ab7d56b7fff74038f595b7c19fd91b783a84ef3216a10960ebdd9aaa4a0c
[INFO] running `"docker" "start" "-a" "ec80ab7d56b7fff74038f595b7c19fd91b783a84ef3216a10960ebdd9aaa4a0c"`
[INFO] [stderr] warning: dependency (kompact) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr] warning: dependency (runtime) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]     Checking as_num v0.2.5
[INFO] [stderr]     Checking oncemutex v0.1.1
[INFO] [stderr]     Checking bitfields v0.2.0
[INFO] [stderr]     Checking synchronoise v0.4.0
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking tokio-retry v0.2.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling kompact-actor-derive v0.7.0
[INFO] [stderr]    Compiling kompact-component-derive v0.7.0
[INFO] [stderr]     Checking spaniel v0.1.0
[INFO] [stderr]     Checking executors v0.4.4
[INFO] [stderr]     Checking slog-async v2.3.0
[INFO] [stderr]     Checking slog-term v2.4.1
[INFO] [stderr]     Checking kompact v0.7.0
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.19
[INFO] [stderr]     Checking juliex v0.3.0-alpha.8
[INFO] [stderr]     Checking romio v0.3.0-alpha.10
[INFO] [stderr] error[E0520]: `execute_send` specializes an item from a parent `impl`, but that item is not marked `default`
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/kompact-0.7.0/src/component.rs:329:5
[INFO] [stderr]     |
[INFO] [stderr] 326 |   impl<A: ActorRaw> ExecuteSend for A {}
[INFO] [stderr]     |   -------------------------------------- parent `impl` is here
[INFO] [stderr] ...
[INFO] [stderr] 329 | /     fn execute_send(&mut self, env: DispatchEnvelope) -> () {
[INFO] [stderr] 330 | |         Dispatcher::receive(self, env)
[INFO] [stderr] 331 | |     }
[INFO] [stderr]     | |_____^ cannot specialize default item `execute_send`
[INFO] [stderr]     |
[INFO] [stderr]     = note: to specialize, `execute_send` in the parent `impl` must be marked `default`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0520`.
[INFO] [stderr] error: could not compile `kompact`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ec80ab7d56b7fff74038f595b7c19fd91b783a84ef3216a10960ebdd9aaa4a0c"`
[INFO] running `"docker" "rm" "-f" "ec80ab7d56b7fff74038f595b7c19fd91b783a84ef3216a10960ebdd9aaa4a0c"`
[INFO] [stdout] ec80ab7d56b7fff74038f595b7c19fd91b783a84ef3216a10960ebdd9aaa4a0c