[INFO] fetching crate simple-uuid 0.5.1...
[INFO] testing simple-uuid-0.5.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate simple-uuid 0.5.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate simple-uuid 0.5.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple-uuid 0.5.1
[INFO] finished tweaking crates.io crate simple-uuid 0.5.1
[INFO] tweaked toml for crates.io crate simple-uuid 0.5.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 083c6dbc77fd7de0f1943e7b5c10e7504cafdb0b528a2825696e6461138fce2b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "083c6dbc77fd7de0f1943e7b5c10e7504cafdb0b528a2825696e6461138fce2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "083c6dbc77fd7de0f1943e7b5c10e7504cafdb0b528a2825696e6461138fce2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "083c6dbc77fd7de0f1943e7b5c10e7504cafdb0b528a2825696e6461138fce2b", kill_on_drop: false }`
[INFO] [stdout] 083c6dbc77fd7de0f1943e7b5c10e7504cafdb0b528a2825696e6461138fce2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7437bfc2e44b1b70508aee1357a8533fe32ae4cd591b96acf5f78965d63221d0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7437bfc2e44b1b70508aee1357a8533fe32ae4cd591b96acf5f78965d63221d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling sha1_smol v1.0.0
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling nix v0.23.1
[INFO] [stderr]    Compiling sha1 v0.6.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling mac_address v1.1.3
[INFO] [stderr]    Compiling simple-uuid v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]   --> src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(doc_cfg)]
[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 `simple-uuid` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7437bfc2e44b1b70508aee1357a8533fe32ae4cd591b96acf5f78965d63221d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7437bfc2e44b1b70508aee1357a8533fe32ae4cd591b96acf5f78965d63221d0", kill_on_drop: false }`
[INFO] [stdout] 7437bfc2e44b1b70508aee1357a8533fe32ae4cd591b96acf5f78965d63221d0