[INFO] fetching crate simple_wfc 0.1.0-alpha.7...
[INFO] checking simple_wfc-0.1.0-alpha.7 against 1.95.0 for pr-155915
[INFO] extracting crate simple_wfc 0.1.0-alpha.7 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate simple_wfc 0.1.0-alpha.7
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate simple_wfc 0.1.0-alpha.7
[INFO] tweaked toml for crates.io crate simple_wfc 0.1.0-alpha.7 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate simple_wfc 0.1.0-alpha.7 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate simple_wfc 0.1.0-alpha.7 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded symbolic-common v12.16.3
[INFO] [stderr]   Downloaded symbolic-demangle v12.16.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c4b2f8262070c455a791213f8601d913d36b6b3c96b1fd09d9b766b3e2cb116
[INFO] running `Command { std: "docker" "start" "-a" "8c4b2f8262070c455a791213f8601d913d36b6b3c96b1fd09d9b766b3e2cb116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c4b2f8262070c455a791213f8601d913d36b6b3c96b1fd09d9b766b3e2cb116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c4b2f8262070c455a791213f8601d913d36b6b3c96b1fd09d9b766b3e2cb116", kill_on_drop: false }`
[INFO] [stdout] 8c4b2f8262070c455a791213f8601d913d36b6b3c96b1fd09d9b766b3e2cb116
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0be6483ab3265fc24b070612d2403676cf0166529756a98ac3415fe0aac260ef
[INFO] running `Command { std: "docker" "start" "-a" "0be6483ab3265fc24b070612d2403676cf0166529756a98ac3415fe0aac260ef", kill_on_drop: false }`
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking bytemuck v1.24.0
[INFO] [stderr]    Compiling syn v2.0.109
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking uuid v1.18.1
[INFO] [stderr]    Compiling cpp_demangle v0.4.5
[INFO] [stderr]     Checking memmap2 v0.9.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling cc v1.2.45
[INFO] [stderr]     Checking hashbrown v0.16.0
[INFO] [stderr]    Compiling symbolic-demangle v12.16.3
[INFO] [stderr]     Checking weezl v0.1.10
[INFO] [stderr]     Checking num-format v0.4.4
[INFO] [stderr]     Checking debugid v0.8.0
[INFO] [stderr]     Checking symbolic-common v12.16.3
[INFO] [stderr]     Checking rgb v0.8.52
[INFO] [stderr]     Checking flate2 v1.1.5
[INFO] [stderr]     Checking jpeg-decoder v0.3.2
[INFO] [stderr]     Checking quick-xml v0.26.0
[INFO] [stderr]     Checking indexmap v2.12.0
[INFO] [stderr]     Checking is-terminal v0.4.17
[INFO] [stderr]    Compiling pprof v0.15.0
[INFO] [stderr]     Checking str_stack v0.1.0
[INFO] [stderr]     Checking gif v0.13.3
[INFO] [stderr]     Checking tempfile v3.23.0
[INFO] [stderr]     Checking png v0.17.16
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking spin v0.10.0
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]    Compiling findshlibs v0.10.2
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling equator-macro v0.4.2
[INFO] [stderr]    Compiling thiserror-impl v2.0.17
[INFO] [stderr]     Checking equator v0.4.2
[INFO] [stderr]     Checking aligned-vec v0.6.4
[INFO] [stderr]     Checking thiserror v2.0.17
[INFO] [stderr]     Checking zerocopy v0.8.27
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking half v2.7.1
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking inferno v0.11.21
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking exr v1.73.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking simple_wfc v0.1.0-alpha.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(test, feature(test))]
[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 `simple_wfc` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0be6483ab3265fc24b070612d2403676cf0166529756a98ac3415fe0aac260ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0be6483ab3265fc24b070612d2403676cf0166529756a98ac3415fe0aac260ef", kill_on_drop: false }`
[INFO] [stdout] 0be6483ab3265fc24b070612d2403676cf0166529756a98ac3415fe0aac260ef
