[INFO] fetching crate phlow 1.3.2...
[INFO] testing phlow-1.3.2 against 1.69.0 for beta-1.70-1
[INFO] extracting crate phlow 1.3.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate phlow 1.3.2 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate phlow 1.3.2
[INFO] finished tweaking crates.io crate phlow 1.3.2
[INFO] tweaked toml for crates.io crate phlow 1.3.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+1.69.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rust-format v0.3.4
[INFO] [stderr]   Downloaded phlow-derive v1.3.0
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f983ca0e3ced728ca4413cd80a988dc0e177a324e52ada946c6fa97f31ebec5
[INFO] running `Command { std: "docker" "start" "-a" "5f983ca0e3ced728ca4413cd80a988dc0e177a324e52ada946c6fa97f31ebec5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f983ca0e3ced728ca4413cd80a988dc0e177a324e52ada946c6fa97f31ebec5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f983ca0e3ced728ca4413cd80a988dc0e177a324e52ada946c6fa97f31ebec5", kill_on_drop: false }`
[INFO] [stdout] 5f983ca0e3ced728ca4413cd80a988dc0e177a324e52ada946c6fa97f31ebec5
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c937331d00f90d5a7e29e659f01af6074f98db8f0d2aadd90d781ab6e8266a86
[INFO] running `Command { std: "docker" "start" "-a" "c937331d00f90d5a7e29e659f01af6074f98db8f0d2aadd90d781ab6e8266a86", kill_on_drop: false }`
[INFO] [stderr]    Compiling phlow v1.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> 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 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` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "c937331d00f90d5a7e29e659f01af6074f98db8f0d2aadd90d781ab6e8266a86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c937331d00f90d5a7e29e659f01af6074f98db8f0d2aadd90d781ab6e8266a86", kill_on_drop: false }`
[INFO] [stdout] c937331d00f90d5a7e29e659f01af6074f98db8f0d2aadd90d781ab6e8266a86
