[INFO] fetching crate pack-it 0.2.2...
[INFO] testing pack-it-0.2.2 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate pack-it 0.2.2 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate pack-it 0.2.2
[INFO] finished tweaking crates.io crate pack-it 0.2.2
[INFO] tweaked toml for crates.io crate pack-it 0.2.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pack-it 0.2.2 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 97 packages to highest compatible versions
[INFO] [stderr]       Adding arrow2 v0.16.0 (available: v0.18.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hash_hasher v2.0.4
[INFO] [stderr]   Downloaded arrow2 v0.16.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ff11bfb44c0be1eaa4128a3db91aa8f1b12089de43d93251283783dacdf09330
[INFO] running `Command { std: "docker" "start" "ff11bfb44c0be1eaa4128a3db91aa8f1b12089de43d93251283783dacdf09330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff11bfb44c0be1eaa4128a3db91aa8f1b12089de43d93251283783dacdf09330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ff11bfb44c0be1eaa4128a3db91aa8f1b12089de43d93251283783dacdf09330" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff11bfb44c0be1eaa4128a3db91aa8f1b12089de43d93251283783dacdf09330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ff11bfb44c0be1eaa4128a3db91aa8f1b12089de43d93251283783dacdf09330" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.191
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.4
[INFO] [stderr]    Compiling zstd-safe v6.0.6
[INFO] [stderr]    Compiling futures-channel v0.3.34
[INFO] [stderr]    Compiling snap v1.1.2
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling async-trait v0.1.92
[INFO] [stderr]    Compiling array-init-cursor v0.2.1
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling arrow2 v0.16.0
[INFO] [stderr]    Compiling bytemuck_derive v1.12.1
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling chrono v0.4.45
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling foreign_vec v0.1.0
[INFO] [stderr]    Compiling alloc-stdlib v0.2.4
[INFO] [stderr]    Compiling planus v0.3.1
[INFO] [stderr]    Compiling ethnum v1.5.3
[INFO] [stderr]    Compiling hash_hasher v2.0.4
[INFO] [stderr]    Compiling streaming-iterator v0.1.9
[INFO] [stderr]    Compiling streaming-decompression v0.1.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.17
[INFO] [stderr]    Compiling brotli-decompressor v2.5.1
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling futures-util v0.3.34
[INFO] [stderr]    Compiling arrow-format v0.8.1
[INFO] [stderr]    Compiling bytemuck v1.25.2
[INFO] [stderr]    Compiling jobserver v0.1.35
[INFO] [stderr]    Compiling brotli v3.5.0
[INFO] [stderr]    Compiling cc v1.8.0
[INFO] [stderr]    Compiling zstd-sys v2.1.2+zstd.1.5.7
[INFO] [stderr]    Compiling lz4-sys v1.11.1+lz4-1.10.0
[INFO] [stderr]    Compiling futures-executor v0.3.34
[INFO] [stderr]    Compiling futures v0.3.34
[INFO] [stderr]    Compiling parquet-format-safe v0.2.4
[INFO] [stderr]    Compiling lz4 v1.28.1
[INFO] [stderr]    Compiling zstd v0.12.4
[INFO] [stderr]    Compiling parquet2 v0.17.2
[INFO] [stderr]    Compiling pack-it v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_blocks)]
[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 `pack-it` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ff11bfb44c0be1eaa4128a3db91aa8f1b12089de43d93251283783dacdf09330", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff11bfb44c0be1eaa4128a3db91aa8f1b12089de43d93251283783dacdf09330", kill_on_drop: false }`
[INFO] [stdout] ff11bfb44c0be1eaa4128a3db91aa8f1b12089de43d93251283783dacdf09330
