[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] checking jimblandy/mock-executor against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjimblandy%2Fmock-executor" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jimblandy/mock-executor on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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-2/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ffb70c76e081316cbd38930f3ec4507bb5eb03be342b2034c6eefe2588827e4d
[INFO] running `"docker" "start" "-a" "ffb70c76e081316cbd38930f3ec4507bb5eb03be342b2034c6eefe2588827e4d"`
[INFO] [stderr]     Checking 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<F>(label: &'static str, future: F)
[INFO] [stderr]     | ^^^^^
[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]   |                                               ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: subsumed by `.await` syntax
[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]   |                                               ^^^^^^^^^^^
[INFO] [stderr] 
[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<F>(label: &'static str, future: F)
[INFO] [stderr]     | ^^^^^
[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]   |                                               ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: subsumed by `.await` syntax
[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]   |                                               ^^^^^^^^^^^
[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[E0405]: cannot find trait `Wake` in module `task`
[INFO] [stderr]    --> src/main.rs:129:12
[INFO] [stderr]     |
[INFO] [stderr] 129 | impl task::Wake for Waker {
[INFO] [stderr]     |            ^^^^ not found in `task`
[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: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0432, E0557, E0670.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error[E0405]: cannot find trait `Wake` in module `task`
[INFO] [stderr]    --> src/main.rs:129:12
[INFO] [stderr]     |
[INFO] [stderr] 129 | impl task::Wake for Waker {
[INFO] [stderr]     |            ^^^^ not found in `task`
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `async2`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0432, E0557, E0670.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: could not compile `async2`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ffb70c76e081316cbd38930f3ec4507bb5eb03be342b2034c6eefe2588827e4d"`
[INFO] running `"docker" "rm" "-f" "ffb70c76e081316cbd38930f3ec4507bb5eb03be342b2034c6eefe2588827e4d"`
[INFO] [stdout] ffb70c76e081316cbd38930f3ec4507bb5eb03be342b2034c6eefe2588827e4d