[INFO] fetching crate quiver-qpack 0.1.1...
[INFO] testing quiver-qpack-0.1.1 against 1.76.0 for beta-1.77-1
[INFO] extracting crate quiver-qpack 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate quiver-qpack 0.1.1 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quiver-qpack 0.1.1
[INFO] finished tweaking crates.io crate quiver-qpack 0.1.1
[INFO] tweaked toml for crates.io crate quiver-qpack 0.1.1 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" "+1.76.0" "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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bitstream-io v1.10.0
[INFO] [stderr]   Downloaded tokio-bitstream-io v0.0.7
[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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cb0139acc99437ea42ceef73344767d1269e4b9f0ee292ee805359b4579b99a
[INFO] running `Command { std: "docker" "start" "-a" "5cb0139acc99437ea42ceef73344767d1269e4b9f0ee292ee805359b4579b99a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cb0139acc99437ea42ceef73344767d1269e4b9f0ee292ee805359b4579b99a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cb0139acc99437ea42ceef73344767d1269e4b9f0ee292ee805359b4579b99a", kill_on_drop: false }`
[INFO] [stdout] 5cb0139acc99437ea42ceef73344767d1269e4b9f0ee292ee805359b4579b99a
[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" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1772b65189355aaaff93f546c582927ac6f987904dd93124e4b0e4113430720f
[INFO] running `Command { std: "docker" "start" "-a" "1772b65189355aaaff93f546c582927ac6f987904dd93124e4b0e4113430720f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling bitstream-io v1.10.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling phf v0.11.2
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling phf_codegen v0.11.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling quiver-qpack v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tokio v1.36.0
[INFO] [stderr]    Compiling tokio-bitstream-io v0.0.7
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extract_if)]
[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 `quiver-qpack` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "1772b65189355aaaff93f546c582927ac6f987904dd93124e4b0e4113430720f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1772b65189355aaaff93f546c582927ac6f987904dd93124e4b0e4113430720f", kill_on_drop: false }`
[INFO] [stdout] 1772b65189355aaaff93f546c582927ac6f987904dd93124e4b0e4113430720f
[INFO] testing quiver-qpack-0.1.1 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate quiver-qpack 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate quiver-qpack 0.1.1 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quiver-qpack 0.1.1
[INFO] finished tweaking crates.io crate quiver-qpack 0.1.1
[INFO] tweaked toml for crates.io crate quiver-qpack 0.1.1 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-2024-02-10" "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-2024-02-10" "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-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bc475aa8f20c6d7eb94f96b3c24005655973b0f3d2575e770bba90b31916a3f
[INFO] running `Command { std: "docker" "start" "-a" "3bc475aa8f20c6d7eb94f96b3c24005655973b0f3d2575e770bba90b31916a3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bc475aa8f20c6d7eb94f96b3c24005655973b0f3d2575e770bba90b31916a3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bc475aa8f20c6d7eb94f96b3c24005655973b0f3d2575e770bba90b31916a3f", kill_on_drop: false }`
[INFO] [stdout] 3bc475aa8f20c6d7eb94f96b3c24005655973b0f3d2575e770bba90b31916a3f
[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-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4e114bf85d3a01f7864265ae52f42505a2cd545531b8a3283c4822fd5d6995cf
[INFO] running `Command { std: "docker" "start" "-a" "4e114bf85d3a01f7864265ae52f42505a2cd545531b8a3283c4822fd5d6995cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling bitstream-io v1.10.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling phf v0.11.2
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling phf_codegen v0.11.2
[INFO] [stderr]    Compiling quiver-qpack v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tokio v1.36.0
[INFO] [stderr]    Compiling tokio-bitstream-io v0.0.7
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(extract_if)]
[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 `quiver-qpack` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "4e114bf85d3a01f7864265ae52f42505a2cd545531b8a3283c4822fd5d6995cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e114bf85d3a01f7864265ae52f42505a2cd545531b8a3283c4822fd5d6995cf", kill_on_drop: false }`
[INFO] [stdout] 4e114bf85d3a01f7864265ae52f42505a2cd545531b8a3283c4822fd5d6995cf
