[INFO] fetching crate pin-rc 0.1.0... [INFO] testing pin-rc-0.1.0 against beta-2021-09-08 for beta-1.56-1 [INFO] extracting crate pin-rc 0.1.0 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate pin-rc 0.1.0 on toolchain beta-2021-09-08 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-6/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 668b7e9164e3177970a8dcf70fab2fb48de04cc484a683350505472552f28650 [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" "668b7e9164e3177970a8dcf70fab2fb48de04cc484a683350505472552f28650", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "668b7e9164e3177970a8dcf70fab2fb48de04cc484a683350505472552f28650", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "668b7e9164e3177970a8dcf70fab2fb48de04cc484a683350505472552f28650", kill_on_drop: false }` [INFO] [stdout] 668b7e9164e3177970a8dcf70fab2fb48de04cc484a683350505472552f28650 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0eb4b291987b5502ff18641ccd87efdd239f8924928d124148fd09e637795eaf [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" "0eb4b291987b5502ff18641ccd87efdd239f8924928d124148fd09e637795eaf", 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[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(pin)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [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 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 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 5 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0432, E0554, 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 6 previous errors [INFO] running `Command { std: "docker" "inspect" "0eb4b291987b5502ff18641ccd87efdd239f8924928d124148fd09e637795eaf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0eb4b291987b5502ff18641ccd87efdd239f8924928d124148fd09e637795eaf", kill_on_drop: false }` [INFO] [stdout] 0eb4b291987b5502ff18641ccd87efdd239f8924928d124148fd09e637795eaf