[INFO] fetching crate oasis-cbor 0.5.1...
[INFO] testing oasis-cbor-0.5.1 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate oasis-cbor 0.5.1 into /workspace/builds/worker-0-tc1/source
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate oasis-cbor 0.5.1
[INFO] finished tweaking crates.io crate oasis-cbor 0.5.1
[INFO] tweaked toml for crates.io crate oasis-cbor 0.5.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate oasis-cbor 0.5.1 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 30 packages to highest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.21)
[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 oasis-cbor-value v0.5.1
[INFO] [stderr]   Downloaded darling v0.14.4
[INFO] [stderr]   Downloaded oasis-cbor-derive v0.5.1
[INFO] [stderr]   Downloaded darling_macro v0.14.4
[INFO] [stderr]   Downloaded darling_core v0.14.4
[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] 4427141ea83e0eb20855426e8557fdc5e94d0e806f850aa493732b5ab28a5667
[INFO] running `Command { std: "docker" "start" "4427141ea83e0eb20855426e8557fdc5e94d0e806f850aa493732b5ab28a5667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4427141ea83e0eb20855426e8557fdc5e94d0e806f850aa493732b5ab28a5667", 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" "4427141ea83e0eb20855426e8557fdc5e94d0e806f850aa493732b5ab28a5667" "/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" "4427141ea83e0eb20855426e8557fdc5e94d0e806f850aa493732b5ab28a5667", 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" "4427141ea83e0eb20855426e8557fdc5e94d0e806f850aa493732b5ab28a5667" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling equivalent v1.0.3
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling oasis-cbor-value v0.5.1
[INFO] [stderr]    Compiling indexmap v2.14.2
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.3
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling oasis-cbor-derive v0.5.1
[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-1949cf8c6b5b557f/oasis-cbor-derive-0.5.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[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 `oasis-cbor-derive` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4427141ea83e0eb20855426e8557fdc5e94d0e806f850aa493732b5ab28a5667", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4427141ea83e0eb20855426e8557fdc5e94d0e806f850aa493732b5ab28a5667", kill_on_drop: false }`
[INFO] [stdout] 4427141ea83e0eb20855426e8557fdc5e94d0e806f850aa493732b5ab28a5667
