[INFO] cloning repository https://github.com/lambdaxymox/gb_prototype
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lambdaxymox/gb_prototype" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flambdaxymox%2Fgb_prototype"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flambdaxymox%2Fgb_prototype'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8efc1eb550ae851f85bdfac607c58c7a152e31cc
[INFO] testing lambdaxymox/gb_prototype against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flambdaxymox%2Fgb_prototype" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lambdaxymox/gb_prototype on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/lambdaxymox/gb_prototype
[INFO] finished tweaking git repo https://github.com/lambdaxymox/gb_prototype
[INFO] tweaked toml for git repo https://github.com/lambdaxymox/gb_prototype written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/lambdaxymox/gb_prototype already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bc9c53175f77d4693cf3c43984e678dd3e83da8d74a6c8025760d75a587dcd58
[INFO] running `"docker" "start" "-a" "bc9c53175f77d4693cf3c43984e678dd3e83da8d74a6c8025760d75a587dcd58"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling lean_cgmath v0.6.4 (https://github.com/lambdaxymox/lean-cgmath#4a01799d)
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling stb_image v0.2.2
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling glfw-sys v3.3.2
[INFO] [stderr]    Compiling texture v0.1.4 (https://github.com/lambdaxymox/teximage2d#5a88096d)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> /opt/rustwide/cargo-home/git/checkouts/teximage2d-b189881742bb8819/5a88096/texture/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(vec_into_raw_parts)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `texture`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "bc9c53175f77d4693cf3c43984e678dd3e83da8d74a6c8025760d75a587dcd58"`
[INFO] running `"docker" "rm" "-f" "bc9c53175f77d4693cf3c43984e678dd3e83da8d74a6c8025760d75a587dcd58"`
[INFO] [stdout] bc9c53175f77d4693cf3c43984e678dd3e83da8d74a6c8025760d75a587dcd58