[INFO] cloning repository https://github.com/pandaman64/hello-eff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pandaman64/hello-eff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandaman64%2Fhello-eff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandaman64%2Fhello-eff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eca39862f35c1c74d43b60ed5b59b06e9f3a4ad4
[INFO] checking pandaman64/hello-eff against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpandaman64%2Fhello-eff" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pandaman64/hello-eff on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pandaman64/hello-eff
[INFO] finished tweaking git repo https://github.com/pandaman64/hello-eff
[INFO] tweaked toml for git repo https://github.com/pandaman64/hello-eff written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/pandaman64/hello-eff already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9a8ec86a1a69f6f1e8dc283d2153f9c145ea547dc84b9dc4a3d021db2ccc602
[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" "e9a8ec86a1a69f6f1e8dc283d2153f9c145ea547dc84b9dc4a3d021db2ccc602", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9a8ec86a1a69f6f1e8dc283d2153f9c145ea547dc84b9dc4a3d021db2ccc602", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9a8ec86a1a69f6f1e8dc283d2153f9c145ea547dc84b9dc4a3d021db2ccc602", kill_on_drop: false }`
[INFO] [stdout] e9a8ec86a1a69f6f1e8dc283d2153f9c145ea547dc84b9dc4a3d021db2ccc602
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05087cd37175915205b0d9c2d4db0b39dc85ec5ed36389b4f603c2ce58f33e26
[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" "05087cd37175915205b0d9c2d4db0b39dc85ec5ed36389b4f603c2ce58f33e26", kill_on_drop: false }`
[INFO] [stderr]     Checking eff v0.1.0 (https://github.com/pandaman64/effective-rust.git#98128601)
[INFO] [stdout] error[E0599]: no method named `resume` found for struct `Box<(dyn Generator<Return = T, Yield = E> + 'static)>` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/effective-rust-55ebb878becc3487/9812860/src/lib.rs:169:41
[INFO] [stdout]     |
[INFO] [stdout] 169 |         let state = unsafe { expr.inner.resume() };
[INFO] [stdout]     |                                         ^^^^^^ method not found in `Box<(dyn Generator<Return = T, Yield = E> + 'static)>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `eff`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "05087cd37175915205b0d9c2d4db0b39dc85ec5ed36389b4f603c2ce58f33e26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05087cd37175915205b0d9c2d4db0b39dc85ec5ed36389b4f603c2ce58f33e26", kill_on_drop: false }`
[INFO] [stdout] 05087cd37175915205b0d9c2d4db0b39dc85ec5ed36389b4f603c2ce58f33e26