[INFO] fetching crate phlow-server 1.5.0...
[INFO] testing phlow-server-1.5.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate phlow-server 1.5.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate phlow-server 1.5.0 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 phlow-server 1.5.0
[INFO] finished tweaking crates.io crate phlow-server 1.5.0
[INFO] tweaked toml for crates.io crate phlow-server 1.5.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate phlow-server 1.5.0 already has a lockfile, it will not be regenerated
[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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unique_id v0.1.5
[INFO] [stderr]   Downloaded inventory v0.3.13
[INFO] [stderr]   Downloaded rust-format v0.3.4
[INFO] [stderr]   Downloaded blob-uuid v0.5.0
[INFO] [stderr]   Downloaded phlow-derive v1.4.0
[INFO] [stderr]   Downloaded phlow-extensions v1.4.0
[INFO] [stderr]   Downloaded phlow v1.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 885ec9871df923867d949675899f5839404dd891f867c5df21c56338cd5428f5
[INFO] running `Command { std: "docker" "start" "-a" "885ec9871df923867d949675899f5839404dd891f867c5df21c56338cd5428f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "885ec9871df923867d949675899f5839404dd891f867c5df21c56338cd5428f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "885ec9871df923867d949675899f5839404dd891f867c5df21c56338cd5428f5", kill_on_drop: false }`
[INFO] [stdout] 885ec9871df923867d949675899f5839404dd891f867c5df21c56338cd5428f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f00b6e64978eb4fc004ec68896d1243568bcdf9ed9f8dee1466f06c3c9d573e5
[INFO] running `Command { std: "docker" "start" "-a" "f00b6e64978eb4fc004ec68896d1243568bcdf9ed9f8dee1466f06c3c9d573e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling futures-sink v0.3.29
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling cpufeatures v0.2.11
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling http v0.2.11
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling hashbrown v0.14.2
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling rust-format v0.3.4
[INFO] [stderr]    Compiling multer v2.1.0
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling inventory v0.3.13
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling mio v0.8.9
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling uuid v1.6.1
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling base64 v0.21.5
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling try-lock v0.2.4
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling data-encoding v2.4.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling blob-uuid v0.5.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling unique_id v0.1.5
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling headers-core v0.2.0
[INFO] [stderr]    Compiling url v2.4.1
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling encoding_rs v0.8.33
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling headers v0.3.9
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling typetag-impl v0.2.13
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling serde_repr v0.1.17
[INFO] [stderr]    Compiling phlow-derive v1.4.0
[INFO] [stderr]    Compiling tokio v1.34.0
[INFO] [stderr]    Compiling tungstenite v0.20.1
[INFO] [stderr]    Compiling pin-project v1.1.3
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling tokio-stream v0.1.14
[INFO] [stderr]    Compiling tokio-tungstenite v0.20.1
[INFO] [stderr]    Compiling h2 v0.3.22
[INFO] [stderr]    Compiling erased-serde v0.3.31
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling typetag v0.2.13
[INFO] [stderr]    Compiling phlow v1.5.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/phlow-1.5.0/src/lib.rs:4:35
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![cfg_attr(feature = "printing", feature(specialization))]
[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 `phlow` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "f00b6e64978eb4fc004ec68896d1243568bcdf9ed9f8dee1466f06c3c9d573e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f00b6e64978eb4fc004ec68896d1243568bcdf9ed9f8dee1466f06c3c9d573e5", kill_on_drop: false }`
[INFO] [stdout] f00b6e64978eb4fc004ec68896d1243568bcdf9ed9f8dee1466f06c3c9d573e5
[INFO] testing phlow-server-1.5.0 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate phlow-server 1.5.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate phlow-server 1.5.0 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 phlow-server 1.5.0
[INFO] finished tweaking crates.io crate phlow-server 1.5.0
[INFO] tweaked toml for crates.io crate phlow-server 1.5.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate phlow-server 1.5.0 already has a lockfile, it will not be regenerated
[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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1b1935c82a66ee2c8dcf8affbe84923c454ff5c7b8cfa0cf5d39c3460a4d841c
[INFO] running `Command { std: "docker" "start" "-a" "1b1935c82a66ee2c8dcf8affbe84923c454ff5c7b8cfa0cf5d39c3460a4d841c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b1935c82a66ee2c8dcf8affbe84923c454ff5c7b8cfa0cf5d39c3460a4d841c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b1935c82a66ee2c8dcf8affbe84923c454ff5c7b8cfa0cf5d39c3460a4d841c", kill_on_drop: false }`
[INFO] [stdout] 1b1935c82a66ee2c8dcf8affbe84923c454ff5c7b8cfa0cf5d39c3460a4d841c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c0caf3786604553c5662fa0ea5a753b8c0495b4d07818d5679ebf06641924022
[INFO] running `Command { std: "docker" "start" "-a" "c0caf3786604553c5662fa0ea5a753b8c0495b4d07818d5679ebf06641924022", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling pin-project-lite v0.2.13
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling smallvec v1.11.2
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling futures-sink v0.3.29
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling cpufeatures v0.2.11
[INFO] [stderr]    Compiling thiserror v1.0.50
[INFO] [stderr]    Compiling http v0.2.11
[INFO] [stderr]    Compiling hashbrown v0.14.2
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling rust-format v0.3.4
[INFO] [stderr]    Compiling multer v2.1.0
[INFO] [stderr]    Compiling base64 v0.21.5
[INFO] [stderr]    Compiling inventory v0.3.13
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling mio v0.8.9
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling uuid v1.6.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling try-lock v0.2.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling data-encoding v2.4.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling blob-uuid v0.5.0
[INFO] [stderr]    Compiling httpdate v1.0.3
[INFO] [stderr]    Compiling url v2.4.1
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling unique_id v0.1.5
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling headers-core v0.2.0
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling socket2 v0.4.10
[INFO] [stderr]    Compiling encoding_rs v0.8.33
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling spin v0.9.8
[INFO] [stderr]    Compiling rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha1 v0.10.6
[INFO] [stderr]    Compiling headers v0.3.9
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.50
[INFO] [stderr]    Compiling typetag-impl v0.2.13
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling phlow-derive v1.4.0
[INFO] [stderr]    Compiling serde_repr v0.1.17
[INFO] [stderr]    Compiling tokio v1.34.0
[INFO] [stderr]    Compiling pin-project v1.1.3
[INFO] [stderr]    Compiling tungstenite v0.20.1
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling tokio-stream v0.1.14
[INFO] [stderr]    Compiling tokio-tungstenite v0.20.1
[INFO] [stderr]    Compiling h2 v0.3.22
[INFO] [stderr]    Compiling erased-serde v0.3.31
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling typetag v0.2.13
[INFO] [stderr]    Compiling phlow v1.5.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/phlow-1.5.0/src/lib.rs:4:35
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![cfg_attr(feature = "printing", feature(specialization))]
[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 `phlow` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c0caf3786604553c5662fa0ea5a753b8c0495b4d07818d5679ebf06641924022", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0caf3786604553c5662fa0ea5a753b8c0495b4d07818d5679ebf06641924022", kill_on_drop: false }`
[INFO] [stdout] c0caf3786604553c5662fa0ea5a753b8c0495b4d07818d5679ebf06641924022
