[INFO] fetching crate stele 0.2.1...
[INFO] testing stele-0.2.1 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate stele 0.2.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate stele 0.2.1 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stele 0.2.1
[INFO] finished tweaking crates.io crate stele 0.2.1
[INFO] tweaked toml for crates.io crate stele 0.2.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df42805cd1e822f7ecac0cbaf370cf03047d7f003d991b2df4fe287e967650d2
[INFO] running `Command { std: "docker" "start" "-a" "df42805cd1e822f7ecac0cbaf370cf03047d7f003d991b2df4fe287e967650d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df42805cd1e822f7ecac0cbaf370cf03047d7f003d991b2df4fe287e967650d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df42805cd1e822f7ecac0cbaf370cf03047d7f003d991b2df4fe287e967650d2", kill_on_drop: false }`
[INFO] [stdout] df42805cd1e822f7ecac0cbaf370cf03047d7f003d991b2df4fe287e967650d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 105cafa1f191fda58a2eb5a425eb767f54a47eababaf95dca3bb8e46084d77ca
[INFO] running `Command { std: "docker" "start" "-a" "105cafa1f191fda58a2eb5a425eb767f54a47eababaf95dca3bb8e46084d77ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling stele v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:4:1
[INFO] [stdout]    |
[INFO] [stdout] 4  | / #![feature(
[INFO] [stdout] 5  | |     allocator_api,
[INFO] [stdout] 6  | |     slice_ptr_get,
[INFO] [stdout] 7  | |     let_else,
[INFO] [stdout] 8  | |     negative_impls,
[INFO] [stdout] 9  | |     strict_provenance
[INFO] [stdout] 10 | | )]
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     allocator_api,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     slice_ptr_get,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     strict_provenance
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stele` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "105cafa1f191fda58a2eb5a425eb767f54a47eababaf95dca3bb8e46084d77ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "105cafa1f191fda58a2eb5a425eb767f54a47eababaf95dca3bb8e46084d77ca", kill_on_drop: false }`
[INFO] [stdout] 105cafa1f191fda58a2eb5a425eb767f54a47eababaf95dca3bb8e46084d77ca