[INFO] fetching crate uuidcell 0.1.0...
[INFO] testing uuidcell-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate uuidcell 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate uuidcell 0.1.0
[INFO] finished tweaking crates.io crate uuidcell 0.1.0
[INFO] tweaked toml for crates.io crate uuidcell 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate uuidcell 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d2793f89be7b94e58bd97113a82e261250c725c4d5effa002f4b9fce7c0c575
[INFO] running `Command { std: "docker" "start" "-a" "3d2793f89be7b94e58bd97113a82e261250c725c4d5effa002f4b9fce7c0c575", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d2793f89be7b94e58bd97113a82e261250c725c4d5effa002f4b9fce7c0c575", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d2793f89be7b94e58bd97113a82e261250c725c4d5effa002f4b9fce7c0c575", kill_on_drop: false }`
[INFO] [stdout] 3d2793f89be7b94e58bd97113a82e261250c725c4d5effa002f4b9fce7c0c575
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3269e96bbeedf07d1029700ffbc44d4dbf52f5a9306929177bf89e7e26b7efcf
[INFO] running `Command { std: "docker" "start" "-a" "3269e96bbeedf07d1029700ffbc44d4dbf52f5a9306929177bf89e7e26b7efcf", kill_on_drop: false }`
[INFO] [stderr]    Compiling uuidcell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: Please enable one, and only one, of `no_std` or `std`
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | compile_error!("Please enable one, and only one, of `no_std` or `std`");
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `imp::*`
[INFO] [stdout]   --> src/lib.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub use imp::*;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `uuidcell` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "3269e96bbeedf07d1029700ffbc44d4dbf52f5a9306929177bf89e7e26b7efcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3269e96bbeedf07d1029700ffbc44d4dbf52f5a9306929177bf89e7e26b7efcf", kill_on_drop: false }`
[INFO] [stdout] 3269e96bbeedf07d1029700ffbc44d4dbf52f5a9306929177bf89e7e26b7efcf