[INFO] fetching crate sev-snp-utils 1.3.4...
[INFO] testing sev-snp-utils-1.3.4 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate sev-snp-utils 1.3.4 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate sev-snp-utils 1.3.4
[INFO] finished tweaking crates.io crate sev-snp-utils 1.3.4
[INFO] tweaked toml for crates.io crate sev-snp-utils 1.3.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sev-snp-utils 1.3.4 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 240 packages to highest compatible versions
[INFO] [stderr]       Adding base64 v0.20.0 (available: v0.23.1)
[INFO] [stderr]       Adding cached v0.41.0 (available: v4.0.2)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding nix v0.26.4 (available: v0.31.3)
[INFO] [stderr]       Adding pem v1.1.1 (available: v4.0.0)
[INFO] [stderr]       Adding reqwest v0.11.27 (available: v0.13.5)
[INFO] [stderr]       Adding sha2 v0.10.9 (available: v0.11.1)
[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 pem v1.1.1
[INFO] [stderr]   Downloaded cached_proc_macro v0.15.0
[INFO] [stderr]   Downloaded cached v0.41.0
[INFO] [stderr]   Downloaded hickory-resolver v0.24.4
[INFO] [stderr]   Downloaded base64 v0.20.0
[INFO] [stderr]   Downloaded hickory-proto v0.24.4
[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] 49006a2ffd970b01a99930e74200f0dd3ef0956bed32835c706f6d9633f4e205
[INFO] running `Command { std: "docker" "start" "49006a2ffd970b01a99930e74200f0dd3ef0956bed32835c706f6d9633f4e205", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49006a2ffd970b01a99930e74200f0dd3ef0956bed32835c706f6d9633f4e205", 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" "49006a2ffd970b01a99930e74200f0dd3ef0956bed32835c706f6d9633f4e205" "/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" "49006a2ffd970b01a99930e74200f0dd3ef0956bed32835c706f6d9633f4e205", 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" "49006a2ffd970b01a99930e74200f0dd3ef0956bed32835c706f6d9633f4e205" "/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 v3.0.9
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[INFO] [stderr]    Compiling async-std v1.13.2
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[INFO] [stderr]    Compiling base64 v0.20.0
[INFO] [stderr]    Compiling idna_adapter v1.2.2
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[INFO] [stderr]    Compiling tokio-util v0.7.20
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
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[INFO] [stderr]    Compiling h2 v0.3.27
[INFO] [stderr]    Compiling hyper v0.14.32
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.27
[INFO] [stderr]    Compiling sev-snp-utils v1.3.4 (/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(async_closure)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `async_closure` has been stable since `1.85.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_closure` has been stable since 1.85.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sev-snp-utils` (lib) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "49006a2ffd970b01a99930e74200f0dd3ef0956bed32835c706f6d9633f4e205", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49006a2ffd970b01a99930e74200f0dd3ef0956bed32835c706f6d9633f4e205", kill_on_drop: false }`
[INFO] [stdout] 49006a2ffd970b01a99930e74200f0dd3ef0956bed32835c706f6d9633f4e205
