[INFO] fetching crate enstream 0.3.0...
[INFO] checking enstream-0.3.0 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate enstream 0.3.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate enstream 0.3.0 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate enstream 0.3.0
[INFO] finished tweaking crates.io crate enstream 0.3.0
[INFO] tweaked toml for crates.io crate enstream 0.3.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pinned-aliasable v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0452b2d881c89c7686b273405b6e300a8f45d2f7fdf690b8bd885cc52ada7ab2
[INFO] running `Command { std: "docker" "start" "-a" "0452b2d881c89c7686b273405b6e300a8f45d2f7fdf690b8bd885cc52ada7ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0452b2d881c89c7686b273405b6e300a8f45d2f7fdf690b8bd885cc52ada7ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0452b2d881c89c7686b273405b6e300a8f45d2f7fdf690b8bd885cc52ada7ab2", kill_on_drop: false }`
[INFO] [stdout] 0452b2d881c89c7686b273405b6e300a8f45d2f7fdf690b8bd885cc52ada7ab2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23698085261a3e002d861d5571119158388d935de249227a76b8a560dec9d2ad
[INFO] running `Command { std: "docker" "start" "-a" "23698085261a3e002d861d5571119158388d935de249227a76b8a560dec9d2ad", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking pinned-aliasable v0.1.3
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]     Checking enstream v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stdout] error: item constrains opaque type that is not in its signature
[INFO] [stdout]   --> tests/yield_in_drop.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 |     ) -> <Self as HandlerFnLifetime<'_, Box<u32>>>::Fut {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this item must mention the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout] note: this item must mention the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]   --> tests/yield_in_drop.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn call(
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: item constrains opaque type that is not in its signature
[INFO] [stdout]   --> tests/yield_in_drop.rs:29:10
[INFO] [stdout]    |
[INFO] [stdout] 29 |     ) -> <Self as HandlerFnLifetime<'_, Box<u32>>>::Fut {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this item must mention the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout] note: this item must mention the opaque type in its signature in order to be able to register hidden types
[INFO] [stdout]   --> tests/yield_in_drop.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 | /         async {
[INFO] [stdout] 31 | |             let _yields_in_drop = YieldsInDrop { yielder };
[INFO] [stdout] 32 | |             std::future::pending().await
[INFO] [stdout] 33 | |         }
[INFO] [stdout]    | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `enstream` (test "yield_in_drop") due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "23698085261a3e002d861d5571119158388d935de249227a76b8a560dec9d2ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23698085261a3e002d861d5571119158388d935de249227a76b8a560dec9d2ad", kill_on_drop: false }`
[INFO] [stdout] 23698085261a3e002d861d5571119158388d935de249227a76b8a560dec9d2ad
