[INFO] cloning repository https://github.com/mazi233/pin-in-async-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mazi233/pin-in-async-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmazi233%2Fpin-in-async-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmazi233%2Fpin-in-async-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5b5e37518b1468ffc5149d432316b538c612dd78
[INFO] testing mazi233/pin-in-async-rust against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmazi233%2Fpin-in-async-rust" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mazi233/pin-in-async-rust on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mazi233/pin-in-async-rust
[INFO] finished tweaking git repo https://github.com/mazi233/pin-in-async-rust
[INFO] tweaked toml for git repo https://github.com/mazi233/pin-in-async-rust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/mazi233/pin-in-async-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d7bda6669b65c167a3d55e9447bf13f4d76f1b7a001e952a5f7b97e67c8381b9
[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" "d7bda6669b65c167a3d55e9447bf13f4d76f1b7a001e952a5f7b97e67c8381b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7bda6669b65c167a3d55e9447bf13f4d76f1b7a001e952a5f7b97e67c8381b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7bda6669b65c167a3d55e9447bf13f4d76f1b7a001e952a5f7b97e67c8381b9", kill_on_drop: false }`
[INFO] [stdout] d7bda6669b65c167a3d55e9447bf13f4d76f1b7a001e952a5f7b97e67c8381b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--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] 15470becb01cba6ed2ef4e17533ece84781a463ae61900625e4e7e69eb6a1504
[INFO] running `Command { std: "docker" "start" "-a" "15470becb01cba6ed2ef4e17533ece84781a463ae61900625e4e7e69eb6a1504", kill_on_drop: false }`
[INFO] [stderr]    Compiling pin-in-async-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/main.rs:52:1
[INFO] [stdout]    |
[INFO] [stdout] 52 | #![feature(generators, generator_trait)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[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 E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pin-in-async-rust` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "15470becb01cba6ed2ef4e17533ece84781a463ae61900625e4e7e69eb6a1504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15470becb01cba6ed2ef4e17533ece84781a463ae61900625e4e7e69eb6a1504", kill_on_drop: false }`
[INFO] [stdout] 15470becb01cba6ed2ef4e17533ece84781a463ae61900625e4e7e69eb6a1504