[INFO] fetching crate pi_cowlist 0.1.0...
[INFO] testing pi_cowlist-0.1.0 against beta-2023-04-20 for beta-1.70-1
[INFO] extracting crate pi_cowlist 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate pi_cowlist 0.1.0 on toolchain beta-2023-04-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pi_cowlist 0.1.0
[INFO] finished tweaking crates.io crate pi_cowlist 0.1.0
[INFO] tweaked toml for crates.io crate pi_cowlist 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-04-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ec0e1a71f9ae405fcd35ed1b4138abb5657ca297469288a4469b37580ce2959
[INFO] running `Command { std: "docker" "start" "-a" "4ec0e1a71f9ae405fcd35ed1b4138abb5657ca297469288a4469b37580ce2959", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ec0e1a71f9ae405fcd35ed1b4138abb5657ca297469288a4469b37580ce2959", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ec0e1a71f9ae405fcd35ed1b4138abb5657ca297469288a4469b37580ce2959", kill_on_drop: false }`
[INFO] [stdout] 4ec0e1a71f9ae405fcd35ed1b4138abb5657ca297469288a4469b37580ce2959
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-04-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 29fc1f989557906502ad85705bf2739dd29dbb6cf776b2e9e81a7d1cef85c114
[INFO] running `Command { std: "docker" "start" "-a" "29fc1f989557906502ad85705bf2739dd29dbb6cf776b2e9e81a7d1cef85c114", kill_on_drop: false }`
[INFO] [stderr]    Compiling pi_cowlist v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(core_intrinsics)] 
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pi_cowlist` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "29fc1f989557906502ad85705bf2739dd29dbb6cf776b2e9e81a7d1cef85c114", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29fc1f989557906502ad85705bf2739dd29dbb6cf776b2e9e81a7d1cef85c114", kill_on_drop: false }`
[INFO] [stdout] 29fc1f989557906502ad85705bf2739dd29dbb6cf776b2e9e81a7d1cef85c114
