[INFO] fetching crate pin-rc 0.1.0...
[INFO] testing pin-rc-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate pin-rc 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate pin-rc 0.1.0 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 crates.io crate pin-rc 0.1.0
[INFO] finished tweaking crates.io crate pin-rc 0.1.0
[INFO] tweaked toml for crates.io crate pin-rc 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 2efe469c55118edb19a2f3bf52b57b4e0bebc3a2d5cf35d334a1a0cb79d697a6
[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" "2efe469c55118edb19a2f3bf52b57b4e0bebc3a2d5cf35d334a1a0cb79d697a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2efe469c55118edb19a2f3bf52b57b4e0bebc3a2d5cf35d334a1a0cb79d697a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2efe469c55118edb19a2f3bf52b57b4e0bebc3a2d5cf35d334a1a0cb79d697a6", kill_on_drop: false }`
[INFO] [stdout] 2efe469c55118edb19a2f3bf52b57b4e0bebc3a2d5cf35d334a1a0cb79d697a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] d6c8f6c638c73de027001d4153bcd990b5a19bacd5b780e1378ed9f9c67a3660
[INFO] running `Command { std: "docker" "start" "-a" "d6c8f6c638c73de027001d4153bcd990b5a19bacd5b780e1378ed9f9c67a3660", kill_on_drop: false }`
[INFO] [stderr]    Compiling pin-rc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::mem::Pin`
[INFO] [stdout]  --> src/pin_rc.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem::Pin;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ no `Pin` in `mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::mem::Pin`
[INFO] [stdout]  --> src/pin_arc.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::mem::Pin;
[INFO] [stdout]   |     ^^^^^^^^^^^^^ no `Pin` in `mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/lib.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 yield i;
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: yield syntax is experimental
[INFO] [stdout]   --> src/lib.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |                 yield i;
[INFO] [stdout]    |                 ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #43122 <https://github.com/rust-lang/rust/issues/43122> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pin-rc` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "d6c8f6c638c73de027001d4153bcd990b5a19bacd5b780e1378ed9f9c67a3660", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6c8f6c638c73de027001d4153bcd990b5a19bacd5b780e1378ed9f9c67a3660", kill_on_drop: false }`
[INFO] [stdout] d6c8f6c638c73de027001d4153bcd990b5a19bacd5b780e1378ed9f9c67a3660