[INFO] fetching crate real-async-trait 0.0.2... [INFO] checking real-async-trait-0.0.2 against master#7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 for pr-85387 [INFO] extracting crate real-async-trait 0.0.2 into /workspace/builds/worker-4/source [INFO] validating manifest of crates.io crate real-async-trait 0.0.2 on toolchain 7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate real-async-trait 0.0.2 [INFO] finished tweaking crates.io crate real-async-trait 0.0.2 [INFO] tweaked toml for crates.io crate real-async-trait 0.0.2 written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate crates.io crate real-async-trait 0.0.2 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e7d9d0ca9c53d9a7438376309a7594b4e27a9c8d4657b8b9e571e1110edbdc04 [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" "e7d9d0ca9c53d9a7438376309a7594b4e27a9c8d4657b8b9e571e1110edbdc04", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e7d9d0ca9c53d9a7438376309a7594b4e27a9c8d4657b8b9e571e1110edbdc04", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e7d9d0ca9c53d9a7438376309a7594b4e27a9c8d4657b8b9e571e1110edbdc04", kill_on_drop: false }` [INFO] [stdout] e7d9d0ca9c53d9a7438376309a7594b4e27a9c8d4657b8b9e571e1110edbdc04 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3ad95d36a176da7c8ddd8b0fe439f56e7a2ef4aeff70b3ba979eb20ff264e956 [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" "3ad95d36a176da7c8ddd8b0fe439f56e7a2ef4aeff70b3ba979eb20ff264e956", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling syn v1.0.34 [INFO] [stderr] Compiling pin-project-internal v0.4.22 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking unicode-xid v0.2.1 [INFO] [stderr] Checking futures-io v0.3.5 [INFO] [stderr] Checking parking v1.0.4 [INFO] [stderr] Checking scoped-tls v1.0.0 [INFO] [stderr] Checking futures-channel v0.3.5 [INFO] [stderr] Checking concurrent-queue v1.1.1 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking socket2 v0.3.12 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Checking quote v1.0.7 [INFO] [stderr] Checking real-async-trait v0.0.2 (/opt/rustwide/workdir) [INFO] [stderr] Compiling async-attributes v1.1.1 [INFO] [stderr] Checking pin-project v0.4.22 [INFO] [stderr] Checking futures-util v0.3.5 [INFO] [stderr] Checking blocking v0.4.6 [INFO] [stderr] Checking smol v0.1.18 [INFO] [stderr] Checking async-std v1.6.2 [INFO] [stdout] error[E0658]: `impl Trait` in type aliases is unstable [INFO] [stdout] --> examples/simple.rs:25:1 [INFO] [stdout] | [INFO] [stdout] 25 | #[real_async_trait] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #63063 for more information [INFO] [stdout] = help: add `#![feature(min_type_alias_impl_trait)]` to the crate attributes to enable [INFO] [stdout] = note: this error originates in the attribute macro `real_async_trait` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `generic_associated_types` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> examples/simple.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(generic_associated_types, type_alias_impl_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(incomplete_features)]` on by default [INFO] [stdout] = note: see issue #44265 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `type_alias_impl_trait` is incomplete and may not be safe to use and/or cause compiler crashes [INFO] [stdout] --> examples/simple.rs:1:38 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(generic_associated_types, type_alias_impl_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #63063 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0658`. [INFO] [stdout] [INFO] [stderr] error: could not compile `real-async-trait` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "3ad95d36a176da7c8ddd8b0fe439f56e7a2ef4aeff70b3ba979eb20ff264e956", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3ad95d36a176da7c8ddd8b0fe439f56e7a2ef4aeff70b3ba979eb20ff264e956", kill_on_drop: false }` [INFO] [stdout] 3ad95d36a176da7c8ddd8b0fe439f56e7a2ef4aeff70b3ba979eb20ff264e956