[INFO] fetching crate async-executor 1.4.0...
[INFO] checking async-executor-1.4.0 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate async-executor 1.4.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate async-executor 1.4.0 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "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-0/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" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05b3c3c886fd5f78440ec10b2b4652d0b1b51d5e9383a83e781438645a2fb868
[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" "05b3c3c886fd5f78440ec10b2b4652d0b1b51d5e9383a83e781438645a2fb868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05b3c3c886fd5f78440ec10b2b4652d0b1b51d5e9383a83e781438645a2fb868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05b3c3c886fd5f78440ec10b2b4652d0b1b51d5e9383a83e781438645a2fb868", kill_on_drop: false }`
[INFO] [stdout] 05b3c3c886fd5f78440ec10b2b4652d0b1b51d5e9383a83e781438645a2fb868
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37d0b5da9939d62439439be4f980c4622e06ff294b9166bbd0a1a37a3379a829
[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" "37d0b5da9939d62439439be4f980c4622e06ff294b9166bbd0a1a37a3379a829", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[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 nb-connect v1.0.2
[INFO] [stderr]     Checking polling v2.0.0
[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[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[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: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "37d0b5da9939d62439439be4f980c4622e06ff294b9166bbd0a1a37a3379a829", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37d0b5da9939d62439439be4f980c4622e06ff294b9166bbd0a1a37a3379a829", kill_on_drop: false }`
[INFO] [stdout] 37d0b5da9939d62439439be4f980c4622e06ff294b9166bbd0a1a37a3379a829