[INFO] cloning repository https://github.com/chloekek/snowflake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chloekek/snowflake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchloekek%2Fsnowflake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchloekek%2Fsnowflake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cbf45f2c619cc5f01efc993f9b01c603e36f9b94
[INFO] testing chloekek/snowflake against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchloekek%2Fsnowflake" "/workspace/builds/worker-81/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-81/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chloekek/snowflake 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 git repo https://github.com/chloekek/snowflake
[INFO] finished tweaking git repo https://github.com/chloekek/snowflake
[INFO] tweaked toml for git repo https://github.com/chloekek/snowflake written to /workspace/builds/worker-81/source/Cargo.toml
[INFO] crate git repo https://github.com/chloekek/snowflake already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] 76995c6465b9854a67ad926c1c4b2e8d049a00d8d8ff47f0ec3f9b073ea29b62
[INFO] running `Command { std: "docker" "start" "-a" "76995c6465b9854a67ad926c1c4b2e8d049a00d8d8ff47f0ec3f9b073ea29b62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76995c6465b9854a67ad926c1c4b2e8d049a00d8d8ff47f0ec3f9b073ea29b62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76995c6465b9854a67ad926c1c4b2e8d049a00d8d8ff47f0ec3f9b073ea29b62", kill_on_drop: false }`
[INFO] [stdout] 76995c6465b9854a67ad926c1c4b2e8d049a00d8d8ff47f0ec3f9b073ea29b62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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] ec37784cba137baf37c0714e444c411dc4691bc40b2306c85f49c799fcf5a304
[INFO] running `Command { std: "docker" "start" "-a" "ec37784cba137baf37c0714e444c411dc4691bc40b2306c85f49c799fcf5a304", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling blake3_c_rust_bindings v0.0.0 (https://github.com/BLAKE3-team/BLAKE3?tag=1.2.0#c61c663e)
[INFO] [stderr]    Compiling snowflake_core v0.0.0 (/opt/rustwide/workdir/snowflake_core)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> snowflake_core/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(maybe_uninit_slice)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> snowflake_core/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(maybe_uninit_uninit_array)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 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 `snowflake_core` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "ec37784cba137baf37c0714e444c411dc4691bc40b2306c85f49c799fcf5a304", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec37784cba137baf37c0714e444c411dc4691bc40b2306c85f49c799fcf5a304", kill_on_drop: false }`
[INFO] [stdout] ec37784cba137baf37c0714e444c411dc4691bc40b2306c85f49c799fcf5a304