[INFO] updating cached repository https://github.com/jimblandy/mock-executor [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 0d9f55d79e9783c047bec32e49e2a068ac94b58c [INFO] testing jimblandy/mock-executor against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimblandy%2Fmock-executor" "/workspace/builds/worker-6/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jimblandy/mock-executor on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/jimblandy/mock-executor [INFO] finished tweaking git repo https://github.com/jimblandy/mock-executor [INFO] tweaked toml for git repo https://github.com/jimblandy/mock-executor written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/jimblandy/mock-executor already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"` [INFO] [stdout] d503e3a477f54799287a29f5a95eb25ffa869743b636ce3cb947b1afce8f7de3 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "d503e3a477f54799287a29f5a95eb25ffa869743b636ce3cb947b1afce8f7de3"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling async2 v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0670]: `async fn` is not permitted in the 2015 edition [INFO] [stderr] --> src/main.rs:226:1 [INFO] [stderr] | [INFO] [stderr] 226 | async fn print(label: &'static str, future: F) [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: to use `async fn`, switch to Rust 2018 [INFO] [stderr] = help: set `edition = "2018"` in `Cargo.toml` [INFO] [stderr] = note: for more on editions, read https://doc.rust-lang.org/edition-guide [INFO] [stderr] [INFO] [stderr] error[E0557]: feature has been removed [INFO] [stderr] --> src/main.rs:1:47 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(arbitrary_self_types, async_await, await_macro, fnbox, futures_api, pin)] [INFO] [stderr] | ^^^^^^^^^^^ feature has been removed [INFO] [stderr] | [INFO] [stderr] = note: subsumed by `.await` syntax [INFO] [stderr] [INFO] [stderr] error[E0432]: unresolved imports `std::task::LocalWaker`, `std::task::local_waker_from_nonlocal` [INFO] [stderr] --> src/main.rs:8:23 [INFO] [stderr] | [INFO] [stderr] 8 | use std::task::{self, LocalWaker, local_waker_from_nonlocal, Poll}; [INFO] [stderr] | ^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^ no `local_waker_from_nonlocal` in `task` [INFO] [stderr] | | [INFO] [stderr] | no `LocalWaker` in `task` [INFO] [stderr] [INFO] [stderr] error: cannot find macro `await` in this scope [INFO] [stderr] --> src/main.rs:230:33 [INFO] [stderr] | [INFO] [stderr] 230 | println!("{}: {:?}", label, await!(future)); [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(arbitrary_self_types, async_await, await_macro, fnbox, futures_api, pin)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0658]: use of unstable library feature 'wake_trait' [INFO] [stderr] --> src/main.rs:130:5 [INFO] [stderr] | [INFO] [stderr] 130 | / fn wake(arc_self: &Arc) { [INFO] [stderr] 131 | | // If the executor is gone, this has no effect. [INFO] [stderr] 132 | | let queue = if let Some(queue) = arc_self.queue.upgrade() { queue } else { return; }; [INFO] [stderr] 133 | | [INFO] [stderr] 134 | | queue.push_back(arc_self.task.clone()); [INFO] [stderr] 135 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #69912 for more information [INFO] [stderr] [INFO] [stderr] error[E0658]: use of unstable library feature 'wake_trait' [INFO] [stderr] --> src/main.rs:129:6 [INFO] [stderr] | [INFO] [stderr] 129 | impl task::Wake for Waker { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #69912 for more information [INFO] [stderr] [INFO] [stderr] error[E0186]: method `wake` has a `self: std::sync::Arc` declaration in the trait, but not in the impl [INFO] [stderr] --> src/main.rs:130:5 [INFO] [stderr] | [INFO] [stderr] 130 | fn wake(arc_self: &Arc) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `self: std::sync::Arc` in impl [INFO] [stderr] | [INFO] [stderr] = note: `wake` from trait: `fn(std::sync::Arc)` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:73:53 [INFO] [stderr] | [INFO] [stderr] 73 | match pinned_task.as_mut().poll(&local_waker) { [INFO] [stderr] | ^^^^^^^^^^^^ types differ in mutability [INFO] [stderr] | [INFO] [stderr] = note: expected mutable reference `&mut std::task::Context<'_>` [INFO] [stderr] found reference `&_` [INFO] [stderr] [INFO] [stderr] error: aborting due to 9 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0186, E0308, E0432, E0554, E0557, E0658, E0670. [INFO] [stderr] For more information about an error, try `rustc --explain E0186`. [INFO] [stderr] error: could not compile `async2`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "d503e3a477f54799287a29f5a95eb25ffa869743b636ce3cb947b1afce8f7de3"` [INFO] running `"docker" "rm" "-f" "d503e3a477f54799287a29f5a95eb25ffa869743b636ce3cb947b1afce8f7de3"` [INFO] [stdout] d503e3a477f54799287a29f5a95eb25ffa869743b636ce3cb947b1afce8f7de3