[INFO] fetching crate tower-async-hyper 0.1.0...
[INFO] testing tower-async-hyper-0.1.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate tower-async-hyper 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate tower-async-hyper 0.1.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tower-async-service v0.2.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b860765029d881bdb7f59711ae2bc27f1185c510a02b7edf1c07200078b98697
[INFO] running `Command { std: "docker" "start" "-a" "b860765029d881bdb7f59711ae2bc27f1185c510a02b7edf1c07200078b98697", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b860765029d881bdb7f59711ae2bc27f1185c510a02b7edf1c07200078b98697", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b860765029d881bdb7f59711ae2bc27f1185c510a02b7edf1c07200078b98697", kill_on_drop: false }`
[INFO] [stdout] b860765029d881bdb7f59711ae2bc27f1185c510a02b7edf1c07200078b98697
[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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9fcb1169779e35211e3d73ec85a0d1f349e4bc60423f91b14dfbc51305b86e0
[INFO] running `Command { std: "docker" "start" "-a" "c9fcb1169779e35211e3d73ec85a0d1f349e4bc60423f91b14dfbc51305b86e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling tower-async-service v0.2.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling http v1.0.0
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling http-body v1.0.0
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling h2 v0.4.0
[INFO] [stderr]    Compiling hyper v1.1.0
[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: aborting due to previous error
[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" "c9fcb1169779e35211e3d73ec85a0d1f349e4bc60423f91b14dfbc51305b86e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9fcb1169779e35211e3d73ec85a0d1f349e4bc60423f91b14dfbc51305b86e0", kill_on_drop: false }`
[INFO] [stdout] c9fcb1169779e35211e3d73ec85a0d1f349e4bc60423f91b14dfbc51305b86e0
[INFO] testing tower-async-hyper-0.1.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate tower-async-hyper 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate tower-async-hyper 0.1.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "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" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c94a60541f13c2fd4f7b1e96d264e92d05bda20d2cee6fcc573012a9482fb8d5
[INFO] running `Command { std: "docker" "start" "-a" "c94a60541f13c2fd4f7b1e96d264e92d05bda20d2cee6fcc573012a9482fb8d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c94a60541f13c2fd4f7b1e96d264e92d05bda20d2cee6fcc573012a9482fb8d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c94a60541f13c2fd4f7b1e96d264e92d05bda20d2cee6fcc573012a9482fb8d5", kill_on_drop: false }`
[INFO] [stdout] c94a60541f13c2fd4f7b1e96d264e92d05bda20d2cee6fcc573012a9482fb8d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4ff6aa7c6362bb10f09b53eb8a58ab6da369ce599b7afe785d07d9245aa1374
[INFO] running `Command { std: "docker" "start" "-a" "a4ff6aa7c6362bb10f09b53eb8a58ab6da369ce599b7afe785d07d9245aa1374", kill_on_drop: false }`
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling tower-async-service v0.2.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling http v1.0.0
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling http-body v1.0.0
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling h2 v0.4.0
[INFO] [stderr]    Compiling hyper v1.1.0
[INFO] [stderr]    Compiling tower-async-hyper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta 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: aborting due to 1 previous error
[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" "a4ff6aa7c6362bb10f09b53eb8a58ab6da369ce599b7afe785d07d9245aa1374", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4ff6aa7c6362bb10f09b53eb8a58ab6da369ce599b7afe785d07d9245aa1374", kill_on_drop: false }`
[INFO] [stdout] a4ff6aa7c6362bb10f09b53eb8a58ab6da369ce599b7afe785d07d9245aa1374
