[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#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frachel-rose%2Fexe_test" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rachel-rose/exe_test on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simplelog v0.7.6
[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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70170d510fc9ef6be204ef5d8d30305dc54bd9726c73368a13d64a8ca3241c1b
[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" "70170d510fc9ef6be204ef5d8d30305dc54bd9726c73368a13d64a8ca3241c1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70170d510fc9ef6be204ef5d8d30305dc54bd9726c73368a13d64a8ca3241c1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70170d510fc9ef6be204ef5d8d30305dc54bd9726c73368a13d64a8ca3241c1b", kill_on_drop: false }`
[INFO] [stdout] 70170d510fc9ef6be204ef5d8d30305dc54bd9726c73368a13d64a8ca3241c1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 282f8cdec038ae11df9b1c8973c42c018bb0777e29fe9404cf2b41f7fa11cdd7
[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" "282f8cdec038ae11df9b1c8973c42c018bb0777e29fe9404cf2b41f7fa11cdd7", kill_on_drop: false }`
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[INFO] [stderr]     Checking object v0.24.0
[INFO] [stderr]     Checking rustc-demangle v0.1.19
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[INFO] [stderr]    Compiling serde_derive v1.0.125
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[INFO] [stderr]     Checking async-global-executor v2.0.2
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[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking toml v0.5.8
[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] [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: 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: 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: 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" "282f8cdec038ae11df9b1c8973c42c018bb0777e29fe9404cf2b41f7fa11cdd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "282f8cdec038ae11df9b1c8973c42c018bb0777e29fe9404cf2b41f7fa11cdd7", kill_on_drop: false }`
[INFO] [stdout] 282f8cdec038ae11df9b1c8973c42c018bb0777e29fe9404cf2b41f7fa11cdd7