[INFO] fetching crate bronzeflow-core 0.1.1...
[INFO] checking bronzeflow-core-0.1.1 against 1.95.0 for pr-155915
[INFO] extracting crate bronzeflow-core 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate bronzeflow-core 0.1.1
[INFO] finished tweaking crates.io crate bronzeflow-core 0.1.1
[INFO] tweaked toml for crates.io crate bronzeflow-core 0.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate bronzeflow-core 0.1.1 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 119 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.8.2)
[INFO] [stderr]       Adding cron v0.12.1 (available: v0.16.0)
[INFO] [stderr]       Adding derive_builder v0.11.2 (available: v0.20.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bronzeflow-time v0.1.1
[INFO] [stderr]   Downloaded bronzeflow-utils v0.1.1
[INFO] [stderr]   Downloaded cron v0.12.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ec6fbc5d70a0ea3cd6681a3e73d7d56768f491bbec2ad9de9b2e3983bb2e457
[INFO] running `Command { std: "docker" "start" "-a" "1ec6fbc5d70a0ea3cd6681a3e73d7d56768f491bbec2ad9de9b2e3983bb2e457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ec6fbc5d70a0ea3cd6681a3e73d7d56768f491bbec2ad9de9b2e3983bb2e457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ec6fbc5d70a0ea3cd6681a3e73d7d56768f491bbec2ad9de9b2e3983bb2e457", kill_on_drop: false }`
[INFO] [stdout] 1ec6fbc5d70a0ea3cd6681a3e73d7d56768f491bbec2ad9de9b2e3983bb2e457
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b0b9c63a116738b47d9681b7ffc7f27d01b56215d1a6a55b69a49fc4e6f8e0f
[INFO] running `Command { std: "docker" "start" "-a" "4b0b9c63a116738b47d9681b7ffc7f27d01b56215d1a6a55b69a49fc4e6f8e0f", kill_on_drop: false }`
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]     Checking iana-time-zone v0.1.65
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking bronzeflow-utils v0.1.1
[INFO] [stderr]    Compiling tokio-macros v2.7.0
[INFO] [stderr]    Compiling derive_builder_core v0.11.2
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]     Checking chrono v0.4.44
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking tokio v1.52.3
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]    Compiling derive_builder_macro v0.11.2
[INFO] [stderr]     Checking derive_builder v0.11.2
[INFO] [stderr]     Checking cron v0.12.1
[INFO] [stderr]     Checking bronzeflow-time v0.1.1
[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-1949cf8c6b5b557f/bronzeflow-time-0.1.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(assert_matches)]
[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 `bronzeflow-time` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4b0b9c63a116738b47d9681b7ffc7f27d01b56215d1a6a55b69a49fc4e6f8e0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b0b9c63a116738b47d9681b7ffc7f27d01b56215d1a6a55b69a49fc4e6f8e0f", kill_on_drop: false }`
[INFO] [stdout] 4b0b9c63a116738b47d9681b7ffc7f27d01b56215d1a6a55b69a49fc4e6f8e0f