[INFO] fetching crate tensorgraph-math 0.1.11...
[INFO] testing tensorgraph-math-0.1.11 against 1.59.0 for beta-1.60-1
[INFO] extracting crate tensorgraph-math 0.1.11 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate tensorgraph-math 0.1.11 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tensorgraph-math 0.1.11
[INFO] finished tweaking crates.io crate tensorgraph-math 0.1.11
[INFO] tweaked toml for crates.io crate tensorgraph-math 0.1.11 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate tensorgraph-math 0.1.11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a034509e40c6155514aa4c1984e9ee6805ae9b298483b6baa8cdffad59c9f54c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a034509e40c6155514aa4c1984e9ee6805ae9b298483b6baa8cdffad59c9f54c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a034509e40c6155514aa4c1984e9ee6805ae9b298483b6baa8cdffad59c9f54c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a034509e40c6155514aa4c1984e9ee6805ae9b298483b6baa8cdffad59c9f54c", kill_on_drop: false }`
[INFO] [stdout] a034509e40c6155514aa4c1984e9ee6805ae9b298483b6baa8cdffad59c9f54c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8e9c4edbb3dfd228fb62519ddc93a54f3a95da7b18db3cfb9e1fc61f7db9a88
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f8e9c4edbb3dfd228fb62519ddc93a54f3a95da7b18db3cfb9e1fc61f7db9a88", kill_on_drop: false }`
[INFO] [stderr]    Compiling tensorgraph-sys v0.1.11
[INFO] [stderr]    Compiling blas-src v0.8.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tensorgraph-sys-0.1.11/src/lib.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | / #![feature(
[INFO] [stdout] 3  | |     generic_associated_types,
[INFO] [stdout] 4  | |     allocator_api,
[INFO] [stdout] 5  | |     alloc_layout_extra,
[INFO] [stdout] ...  |
[INFO] [stdout] 13 | |     layout_for_ptr
[INFO] [stdout] 14 | | )]
[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 `tensorgraph-sys` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f8e9c4edbb3dfd228fb62519ddc93a54f3a95da7b18db3cfb9e1fc61f7db9a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8e9c4edbb3dfd228fb62519ddc93a54f3a95da7b18db3cfb9e1fc61f7db9a88", kill_on_drop: false }`
[INFO] [stdout] f8e9c4edbb3dfd228fb62519ddc93a54f3a95da7b18db3cfb9e1fc61f7db9a88