[INFO] fetching crate runa-io-traits 0.0.1-alpha1...
[INFO] testing runa-io-traits-0.0.1-alpha1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate runa-io-traits 0.0.1-alpha1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate runa-io-traits 0.0.1-alpha1
[INFO] finished tweaking crates.io crate runa-io-traits 0.0.1-alpha1
[INFO] tweaked toml for crates.io crate runa-io-traits 0.0.1-alpha1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate runa-io-traits 0.0.1-alpha1 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bc32a3483bb5c9f68ad134e3dd286d08e5d444f6b997426f5ee0f3a3d208f2f
[INFO] running `Command { std: "docker" "start" "-a" "8bc32a3483bb5c9f68ad134e3dd286d08e5d444f6b997426f5ee0f3a3d208f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bc32a3483bb5c9f68ad134e3dd286d08e5d444f6b997426f5ee0f3a3d208f2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bc32a3483bb5c9f68ad134e3dd286d08e5d444f6b997426f5ee0f3a3d208f2f", kill_on_drop: false }`
[INFO] [stdout] 8bc32a3483bb5c9f68ad134e3dd286d08e5d444f6b997426f5ee0f3a3d208f2f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 5b4e9970a5ce891797b26f47c86c739c2231e530b250118bbb7322dd6abcef6b
[INFO] running `Command { std: "docker" "start" "-a" "5b4e9970a5ce891797b26f47c86c739c2231e530b250118bbb7322dd6abcef6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling runa-io-traits v0.0.1-alpha1 (/opt/rustwide/workdir)
[INFO] [stdout] error: unconstrained opaque type
[INFO] [stdout]    --> src/lib.rs:438:9
[INFO] [stdout]     |
[INFO] [stdout] 438 |         impl Future<Output = Result<Message<'a>>> + 'a;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `NextMessageFut` must be used in combination with a concrete type within the same crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:414:13
[INFO] [stdout]     |
[INFO] [stdout] 385 |         fn next_message<'a>(self: Pin<&'a mut Self>) -> NextMessageFut<'a, Self>
[INFO] [stdout]     |                                                         ------------------------ expected `NextMessageFut<'a, Self>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 414 |             NextMessage(Some(self))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^ expected future, found `NextMessage<'_, Self>`
[INFO] [stdout] ...
[INFO] [stdout] 438 |         impl Future<Output = Result<Message<'a>>> + 'a;
[INFO] [stdout]     |         ---------------------------------------------- the expected future
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected opaque type `NextMessageFut<'a, Self>`
[INFO] [stdout]                     found struct `NextMessage<'_, Self>`
[INFO] [stdout] note: this item must have a `#[define_opaque(NextMessageFut)]` attribute to be able to define hidden types
[INFO] [stdout]    --> src/lib.rs:385:12
[INFO] [stdout]     |
[INFO] [stdout] 385 |         fn next_message<'a>(self: Pin<&'a mut Self>) -> NextMessageFut<'a, Self>
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `runa-io-traits` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5b4e9970a5ce891797b26f47c86c739c2231e530b250118bbb7322dd6abcef6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b4e9970a5ce891797b26f47c86c739c2231e530b250118bbb7322dd6abcef6b", kill_on_drop: false }`
[INFO] [stdout] 5b4e9970a5ce891797b26f47c86c739c2231e530b250118bbb7322dd6abcef6b