[INFO] cloning repository https://github.com/rachel-rose/exe_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rachel-rose/exe_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frachel-rose%2Fexe_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frachel-rose%2Fexe_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 00d7dd280b9d8499517ed03de3804e462c10ae01
[INFO] checking rachel-rose/exe_test against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frachel-rose%2Fexe_test" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rachel-rose/exe_test on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rachel-rose/exe_test
[INFO] finished tweaking git repo https://github.com/rachel-rose/exe_test
[INFO] tweaked toml for git repo https://github.com/rachel-rose/exe_test written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded easy-parallel v3.1.0
[INFO] [stderr]   Downloaded bls12_381 v0.1.1
[INFO] running `Command { std: "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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b3b79fbf7b153eda779c33e7c46021cb521b29fb77d9962cf9794a67f8e7d8b
[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" "6b3b79fbf7b153eda779c33e7c46021cb521b29fb77d9962cf9794a67f8e7d8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b3b79fbf7b153eda779c33e7c46021cb521b29fb77d9962cf9794a67f8e7d8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b3b79fbf7b153eda779c33e7c46021cb521b29fb77d9962cf9794a67f8e7d8b", kill_on_drop: false }`
[INFO] [stdout] 6b3b79fbf7b153eda779c33e7c46021cb521b29fb77d9962cf9794a67f8e7d8b
[INFO] running `Command { std: "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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da40ff640ea9af6d3cf05e28f035c396f33c87aedca3a866b8b2fb70cc1c2832
[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" "da40ff640ea9af6d3cf05e28f035c396f33c87aedca3a866b8b2fb70cc1c2832", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
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[INFO] [stderr]     Checking byte-tools v0.3.1
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[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]    Compiling num_enum_derive v0.5.1
[INFO] [stderr]     Checking num_enum v0.5.1
[INFO] [stderr]     Checking exe_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0623]: lifetime mismatch
[INFO] [stdout]  --> src/test.rs:8:32
[INFO] [stdout]   |
[INFO] [stdout] 7 | async fn bang(executor: &Executor<'_>) {
[INFO] [stdout]   |                          ------------  -
[INFO] [stdout]   |                          |             |
[INFO] [stdout]   |                          |             this `async fn` implicitly returns an `impl Future<Output = ()>`
[INFO] [stdout]   |                          this parameter and the returned future are declared with different lifetimes...
[INFO] [stdout] 8 |     let server_task = executor.spawn(async {
[INFO] [stdout]   |                                ^^^^^ ...but data from `executor` is held across an await point here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0623]: lifetime mismatch
[INFO] [stdout]  --> src/test.rs:8:32
[INFO] [stdout]   |
[INFO] [stdout] 7 | async fn bang(executor: &Executor<'_>) {
[INFO] [stdout]   |                          ------------  -
[INFO] [stdout]   |                          |             |
[INFO] [stdout]   |                          |             this `async fn` implicitly returns an `impl Future<Output = ()>`
[INFO] [stdout]   |                          this parameter and the returned future are declared with different lifetimes...
[INFO] [stdout] 8 |     let server_task = executor.spawn(async {
[INFO] [stdout]   |                                ^^^^^ ...but data from `executor` is held across an await point here
[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 E0623`.
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/runtime.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 |                 pingpong(ex).await;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exe_test`
[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 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0623`.
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/nested.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 pingpong(ex.clone()).await;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/runtime.rs:68:17
[INFO] [stdout]    |
[INFO] [stdout] 68 |                 pingpong(ex).await;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/nested.rs:31:17
[INFO] [stdout]    |
[INFO] [stdout] 31 |                 pingpong(ex.clone()).await;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "da40ff640ea9af6d3cf05e28f035c396f33c87aedca3a866b8b2fb70cc1c2832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da40ff640ea9af6d3cf05e28f035c396f33c87aedca3a866b8b2fb70cc1c2832", kill_on_drop: false }`
[INFO] [stdout] da40ff640ea9af6d3cf05e28f035c396f33c87aedca3a866b8b2fb70cc1c2832