[INFO] fetching crate tower-async-hyper 0.1.0... [INFO] testing tower-async-hyper-0.1.0 against 1.90.0 for beta-1.91-3 [INFO] extracting crate tower-async-hyper 0.1.0 into /workspace/builds/worker-7-tc1/source [INFO] started tweaking crates.io crate tower-async-hyper 0.1.0 [INFO] finished tweaking crates.io crate tower-async-hyper 0.1.0 [INFO] tweaked toml for crates.io crate tower-async-hyper 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate tower-async-hyper 0.1.0 on toolchain 1.90.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 78 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tower-async-service v0.2.0 [INFO] [stderr] Downloaded matchers v0.2.0 [INFO] [stderr] Downloaded thread_local v1.1.9 [INFO] [stderr] Downloaded nu-ansi-term v0.50.1 [INFO] [stderr] Downloaded tracing-subscriber v0.3.20 [INFO] [stderr] Downloaded hyper-util v0.1.17 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 250d53aa4d4b4fcd9fc190f9f210fe847577bb6f6868ca6a0bf2a01451004ee6 [INFO] running `Command { std: "docker" "start" "-a" "250d53aa4d4b4fcd9fc190f9f210fe847577bb6f6868ca6a0bf2a01451004ee6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "250d53aa4d4b4fcd9fc190f9f210fe847577bb6f6868ca6a0bf2a01451004ee6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "250d53aa4d4b4fcd9fc190f9f210fe847577bb6f6868ca6a0bf2a01451004ee6", kill_on_drop: false }` [INFO] [stdout] 250d53aa4d4b4fcd9fc190f9f210fe847577bb6f6868ca6a0bf2a01451004ee6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 184f551fde4538e7ecb8a2c543cad618008a7549a2f892dcf128dd7ae8788b54 [INFO] running `Command { std: "docker" "start" "-a" "184f551fde4538e7ecb8a2c543cad618008a7549a2f892dcf128dd7ae8788b54", kill_on_drop: false }` [INFO] [stderr] Compiling hashbrown v0.16.0 [INFO] [stderr] Compiling tower-async-service v0.2.0 [INFO] [stderr] Compiling tokio v1.47.1 [INFO] [stderr] Compiling tracing v0.1.41 [INFO] [stderr] Compiling indexmap v2.11.4 [INFO] [stderr] Compiling tokio-util v0.7.16 [INFO] [stderr] Compiling h2 v0.4.12 [INFO] [stderr] Compiling hyper v1.7.0 [INFO] [stderr] Compiling tower-async-hyper v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:72:1 [INFO] [stdout] | [INFO] [stdout] 72 | #![feature(return_type_notation)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: return type notation arguments must be elided with `..` [INFO] [stdout] --> src/service.rs:42:29 [INFO] [stdout] | [INFO] [stdout] 42 | S: Service + Send + Sync + 'static, [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] help: use the correct syntax by adding `..` to the arguments [INFO] [stdout] | [INFO] [stdout] 42 | S: Service + Send + Sync + 'static, [INFO] [stdout] | ++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `tower-async-hyper` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "184f551fde4538e7ecb8a2c543cad618008a7549a2f892dcf128dd7ae8788b54", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "184f551fde4538e7ecb8a2c543cad618008a7549a2f892dcf128dd7ae8788b54", kill_on_drop: false }` [INFO] [stdout] 184f551fde4538e7ecb8a2c543cad618008a7549a2f892dcf128dd7ae8788b54