[INFO] fetching crate real-async-trait 0.0.2... [INFO] checking real-async-trait-0.0.2 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050 [INFO] extracting crate real-async-trait 0.0.2 into /workspace/builds/worker-8/source [INFO] validating manifest of crates.io crate real-async-trait 0.0.2 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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-8/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 99bdfb73ad1735ee882d05b0cd4b6c2d232534ffab15be8e928e3e97ff7270f8 [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" "99bdfb73ad1735ee882d05b0cd4b6c2d232534ffab15be8e928e3e97ff7270f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "99bdfb73ad1735ee882d05b0cd4b6c2d232534ffab15be8e928e3e97ff7270f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "99bdfb73ad1735ee882d05b0cd4b6c2d232534ffab15be8e928e3e97ff7270f8", kill_on_drop: false }` [INFO] [stdout] 99bdfb73ad1735ee882d05b0cd4b6c2d232534ffab15be8e928e3e97ff7270f8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ce73c381c12353a5a1356cea1dcb16f586612dd640f71d1db49eefdc63fa14ea [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" "ce73c381c12353a5a1356cea1dcb16f586612dd640f71d1db49eefdc63fa14ea", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling syn v1.0.34 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling libc v0.2.72 [INFO] [stderr] Checking once_cell v1.4.0 [INFO] [stderr] Checking futures-sink v0.3.5 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking futures-io v0.3.5 [INFO] [stderr] Checking cache-padded v1.1.1 [INFO] [stderr] Checking parking v1.0.4 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking async-task v3.0.0 [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 crossbeam-utils v0.7.2 [INFO] [stderr] Checking futures-task v0.3.5 [INFO] [stderr] Checking kv-log-macro v1.0.7 [INFO] [stderr] Checking quote v1.0.7 [INFO] [stderr] Checking socket2 v0.3.12 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking real-async-trait v0.0.2 (/opt/rustwide/workdir) [INFO] [stderr] Compiling pin-project-internal v0.4.22 [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] running `Command { std: "docker" "inspect" "ce73c381c12353a5a1356cea1dcb16f586612dd640f71d1db49eefdc63fa14ea", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce73c381c12353a5a1356cea1dcb16f586612dd640f71d1db49eefdc63fa14ea", kill_on_drop: false }` [INFO] [stdout] ce73c381c12353a5a1356cea1dcb16f586612dd640f71d1db49eefdc63fa14ea