[INFO] fetching crate async-executor 1.4.0...
[INFO] checking async-executor-1.4.0 against beta for pr-78714
[INFO] extracting crate async-executor 1.4.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate async-executor 1.4.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-executor 1.4.0
[INFO] finished tweaking crates.io crate async-executor 1.4.0
[INFO] tweaked toml for crates.io crate async-executor 1.4.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate async-executor 1.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12c8292120ea4fd9c22ad66bbd67e069b26f5e0ea226b2fcb2aba542b64d830e
[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" "12c8292120ea4fd9c22ad66bbd67e069b26f5e0ea226b2fcb2aba542b64d830e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12c8292120ea4fd9c22ad66bbd67e069b26f5e0ea226b2fcb2aba542b64d830e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12c8292120ea4fd9c22ad66bbd67e069b26f5e0ea226b2fcb2aba542b64d830e", kill_on_drop: false }`
[INFO] [stdout] 12c8292120ea4fd9c22ad66bbd67e069b26f5e0ea226b2fcb2aba542b64d830e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76df56c6abb0773d3cbf3b5a1548673f9fce17321a3512dd6a8e2b67c6a9a4ea
[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" "76df56c6abb0773d3cbf3b5a1548673f9fce17321a3512dd6a8e2b67c6a9a4ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking async-task v4.0.1
[INFO] [stderr]     Checking event-listener v2.4.0
[INFO] [stderr]     Checking easy-parallel v3.1.0
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]     Checking futures-lite v1.11.0
[INFO] [stderr]     Checking polling v2.0.0
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking async-io v1.1.9
[INFO] [stderr]     Checking async-executor v1.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]  --> benches/tokio.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tokio::runtime::Runtime;
[INFO] [stdout]   |     ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/executor.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `tokio`
[INFO] [stdout]  --> benches/tokio.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tokio::task;
[INFO] [stdout]   |     ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Runtime`
[INFO] [stdout]   --> benches/tokio.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let mut rt = Runtime::new().unwrap();
[INFO] [stdout]    |                  ^^^^^^^ use of undeclared type `Runtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Runtime`
[INFO] [stdout]   --> benches/tokio.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut rt = Runtime::new().unwrap();
[INFO] [stdout]    |                  ^^^^^^^ use of undeclared type `Runtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Runtime`
[INFO] [stdout]   --> benches/tokio.rs:52:18
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut rt = Runtime::new().unwrap();
[INFO] [stdout]    |                  ^^^^^^^ use of undeclared type `Runtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Runtime`
[INFO] [stdout]   --> benches/tokio.rs:68:18
[INFO] [stdout]    |
[INFO] [stdout] 68 |     let mut rt = Runtime::new().unwrap();
[INFO] [stdout]    |                  ^^^^^^^ use of undeclared type `Runtime`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> benches/tokio.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-executor`
[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] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "76df56c6abb0773d3cbf3b5a1548673f9fce17321a3512dd6a8e2b67c6a9a4ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76df56c6abb0773d3cbf3b5a1548673f9fce17321a3512dd6a8e2b67c6a9a4ea", kill_on_drop: false }`
[INFO] [stdout] 76df56c6abb0773d3cbf3b5a1548673f9fce17321a3512dd6a8e2b67c6a9a4ea