[INFO] fetching crate sewup-derive 0.1.14...
[INFO] testing sewup-derive-0.1.14 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate sewup-derive 0.1.14 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate sewup-derive 0.1.14
[INFO] finished tweaking crates.io crate sewup-derive 0.1.14
[INFO] tweaked toml for crates.io crate sewup-derive 0.1.14 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sewup-derive 0.1.14 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 50 packages to highest compatible versions
[INFO] [stderr]       Adding convert_case v0.5.0 (available: v0.12.0)
[INFO] [stderr]       Adding fancy-regex v0.7.1 (available: v0.19.2)
[INFO] [stderr]       Adding hex-literal v0.3.4 (available: v1.1.0)
[INFO] [stderr]       Adding syn v1.0.109 (available: v3.0.9)
[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 hex-literal v0.3.4
[INFO] [stderr]   Downloaded toml v1.1.8+spec-1.1.0
[INFO] [stderr]   Downloaded target-tuple v1.0.2
[INFO] [stderr]   Downloaded trybuild v1.0.122
[INFO] [stderr]   Downloaded convert_case v0.5.0
[INFO] [stderr]   Downloaded fancy-regex v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 539b046cc315c34803db80bdc799301442f152abd0831ae62f8d78c28a7ecc9b
[INFO] running `Command { std: "docker" "start" "539b046cc315c34803db80bdc799301442f152abd0831ae62f8d78c28a7ecc9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "539b046cc315c34803db80bdc799301442f152abd0831ae62f8d78c28a7ecc9b", 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" "539b046cc315c34803db80bdc799301442f152abd0831ae62f8d78c28a7ecc9b" "/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" "539b046cc315c34803db80bdc799301442f152abd0831ae62f8d78c28a7ecc9b", 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" "539b046cc315c34803db80bdc799301442f152abd0831ae62f8d78c28a7ecc9b" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling syn v3.0.9
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stderr]    Compiling zmij v1.0.23
[INFO] [stderr]    Compiling serde_json v1.0.154
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling fancy-regex v0.7.1
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling sewup-derive v0.1.14 (/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(box_into_inner)]
[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 `sewup-derive` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "539b046cc315c34803db80bdc799301442f152abd0831ae62f8d78c28a7ecc9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "539b046cc315c34803db80bdc799301442f152abd0831ae62f8d78c28a7ecc9b", kill_on_drop: false }`
[INFO] [stdout] 539b046cc315c34803db80bdc799301442f152abd0831ae62f8d78c28a7ecc9b
