[INFO] cloning repository https://github.com/js2xxx/reentrant
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/js2xxx/reentrant" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs2xxx%2Freentrant", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs2xxx%2Freentrant'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8b1c24e206b5911bac5f1bb6ae38afe7baf9721b
[INFO] testing js2xxx/reentrant against 1.90.0 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjs2xxx%2Freentrant" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/js2xxx/reentrant
[INFO] finished tweaking git repo https://github.com/js2xxx/reentrant
[INFO] tweaked toml for git repo https://github.com/js2xxx/reentrant written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/js2xxx/reentrant on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/js2xxx/reentrant already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3364842c5f29f1d85a8451ad47130c90d855cef623305eec4193ed9b900294bd
[INFO] running `Command { std: "docker" "start" "-a" "3364842c5f29f1d85a8451ad47130c90d855cef623305eec4193ed9b900294bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3364842c5f29f1d85a8451ad47130c90d855cef623305eec4193ed9b900294bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3364842c5f29f1d85a8451ad47130c90d855cef623305eec4193ed9b900294bd", kill_on_drop: false }`
[INFO] [stdout] 3364842c5f29f1d85a8451ad47130c90d855cef623305eec4193ed9b900294bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd7cfd9b6fe4278fa103108f6ee01fb7954224418a0e1754b8aa1dff69ace705
[INFO] running `Command { std: "docker" "start" "-a" "dd7cfd9b6fe4278fa103108f6ee01fb7954224418a0e1754b8aa1dff69ace705", kill_on_drop: false }`
[INFO] [stderr]    Compiling reentrant v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:98:1
[INFO] [stdout]    |
[INFO] [stdout] 98 | #![feature(allow_internal_unsafe)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:99:1
[INFO] [stdout]    |
[INFO] [stdout] 99 | #![feature(array_windows)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:100:1
[INFO] [stdout]     |
[INFO] [stdout] 100 | #![feature(thread_local)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reentrant` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "dd7cfd9b6fe4278fa103108f6ee01fb7954224418a0e1754b8aa1dff69ace705", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7cfd9b6fe4278fa103108f6ee01fb7954224418a0e1754b8aa1dff69ace705", kill_on_drop: false }`
[INFO] [stdout] dd7cfd9b6fe4278fa103108f6ee01fb7954224418a0e1754b8aa1dff69ace705
