[INFO] fetching crate gpu_rand 0.1.3...
[INFO] testing gpu_rand-0.1.3 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate gpu_rand 0.1.3 into /workspace/builds/worker-77/source
[INFO] validating manifest of crates.io crate gpu_rand 0.1.3 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 gpu_rand 0.1.3
[INFO] finished tweaking crates.io crate gpu_rand 0.1.3
[INFO] tweaked toml for crates.io crate gpu_rand 0.1.3 written to /workspace/builds/worker-77/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cuda_std_macros v0.2.0
[INFO] [stderr]   Downloaded cust_core v0.1.1
[INFO] [stderr]   Downloaded cust_derive v0.2.0
[INFO] [stderr]   Downloaded vek v0.15.6
[INFO] [stderr]   Downloaded cuda_std v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] ce9c2a26ff11578114eb981ebb38f624cd5f535487bf2074e2866c58bc65e91b
[INFO] running `Command { std: "docker" "start" "-a" "ce9c2a26ff11578114eb981ebb38f624cd5f535487bf2074e2866c58bc65e91b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce9c2a26ff11578114eb981ebb38f624cd5f535487bf2074e2866c58bc65e91b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce9c2a26ff11578114eb981ebb38f624cd5f535487bf2074e2866c58bc65e91b", kill_on_drop: false }`
[INFO] [stdout] ce9c2a26ff11578114eb981ebb38f624cd5f535487bf2074e2866c58bc65e91b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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] 4b7b5353b17101ffad0897e1380602230285e83063561b8d7a4448f2e3e87255
[INFO] running `Command { std: "docker" "start" "-a" "4b7b5353b17101ffad0897e1380602230285e83063561b8d7a4448f2e3e87255", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling vek v0.15.6
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling glam v0.20.2
[INFO] [stderr]    Compiling cust_derive v0.2.0
[INFO] [stderr]    Compiling cust_core v0.1.1
[INFO] [stderr]    Compiling gpu_rand v0.1.3 (/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 `gpu_rand` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "4b7b5353b17101ffad0897e1380602230285e83063561b8d7a4448f2e3e87255", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b7b5353b17101ffad0897e1380602230285e83063561b8d7a4448f2e3e87255", kill_on_drop: false }`
[INFO] [stdout] 4b7b5353b17101ffad0897e1380602230285e83063561b8d7a4448f2e3e87255