[INFO] fetching crate const-combinations 2.0.3...
[INFO] testing const-combinations-2.0.3 against 1.69.0 for beta-1.70-1
[INFO] extracting crate const-combinations 2.0.3 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate const-combinations 2.0.3 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate const-combinations 2.0.3
[INFO] finished tweaking crates.io crate const-combinations 2.0.3
[INFO] tweaked toml for crates.io crate const-combinations 2.0.3 written to /workspace/builds/worker-3-tc1/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" "+1.69.0" "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" "+1.69.0" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 691e2b55f1817c0662a2ecfb86d31a42549134e38a2e6b96bb5f655547029529
[INFO] running `Command { std: "docker" "start" "-a" "691e2b55f1817c0662a2ecfb86d31a42549134e38a2e6b96bb5f655547029529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "691e2b55f1817c0662a2ecfb86d31a42549134e38a2e6b96bb5f655547029529", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "691e2b55f1817c0662a2ecfb86d31a42549134e38a2e6b96bb5f655547029529", kill_on_drop: false }`
[INFO] [stdout] 691e2b55f1817c0662a2ecfb86d31a42549134e38a2e6b96bb5f655547029529
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4ef57cd70c762f49f69283ce25de599635e457c55bb209ff64de51996253bc16
[INFO] running `Command { std: "docker" "start" "-a" "4ef57cd70c762f49f69283ce25de599635e457c55bb209ff64de51996253bc16", kill_on_drop: false }`
[INFO] [stderr]    Compiling const-combinations v2.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(maybe_uninit_uninit_array)]
[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 `const-combinations` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "4ef57cd70c762f49f69283ce25de599635e457c55bb209ff64de51996253bc16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ef57cd70c762f49f69283ce25de599635e457c55bb209ff64de51996253bc16", kill_on_drop: false }`
[INFO] [stdout] 4ef57cd70c762f49f69283ce25de599635e457c55bb209ff64de51996253bc16
