Aug 17 17:50:09.285 INFO checking lm4f120-0.9.1 against try#a5d98b025f62ace80fe9d2a15781f900fc42515e for pr-53426
Aug 17 17:50:09.285 INFO running: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 17:50:09.285 INFO creating container for: cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets
Aug 17 17:50:09.285 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-53426/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53426/worker-4/try#a5d98b025f62ace80fe9d2a15781f900fc42515e:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +a5d98b025f62ace80fe9d2a15781f900fc42515e-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 17 17:50:09.514 INFO blam! 160d1320c30824b42b6f602287a7208a95fec30017f9f3b4b49dddf2c0ae0d08
Aug 17 17:50:09.517 INFO running `"docker" "start" "-a" "160d1320c30824b42b6f602287a7208a95fec30017f9f3b4b49dddf2c0ae0d08"`
Aug 17 17:50:10.552 INFO kablam!    Compiling cortex-m v0.4.3
Aug 17 17:50:10.552 INFO kablam!     Checking vcell v0.1.0
Aug 17 17:50:10.560 INFO kablam!     Checking aligned v0.1.2
Aug 17 17:50:10.560 INFO kablam!     Checking bare-metal v0.1.2
Aug 17 17:50:10.563 INFO kablam!     Checking nb v0.1.1
Aug 17 17:50:10.563 INFO kablam!     Checking void v1.0.2
Aug 17 17:50:10.565 INFO kablam!     Checking untagged-option v0.1.1
Aug 17 17:50:11.431 INFO kablam!     Checking spin v0.4.9
Aug 17 17:50:11.696 INFO kablam!     Checking volatile-register v0.2.0
Aug 17 17:50:12.069 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 17 17:50:12.069 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:53
Aug 17 17:50:12.069 INFO kablam!   |
Aug 17 17:50:12.069 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 17 17:50:12.069 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 17 17:50:12.069 INFO kablam! 
Aug 17 17:50:12.087 INFO kablam!     Checking lazy_static v0.2.11
Aug 17 17:50:12.099 INFO kablam! error: aborting due to previous error
Aug 17 17:50:12.099 INFO kablam! 
Aug 17 17:50:12.099 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 17:50:12.110 INFO kablam! error[E0635]: unknown feature `const_unsafe_cell_new`
Aug 17 17:50:12.110 INFO kablam!  --> /cargo-home/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.1.2/src/lib.rs:5:53
Aug 17 17:50:12.111 INFO kablam!   |
Aug 17 17:50:12.111 INFO kablam! 5 | #![cfg_attr(feature = "const-fn", feature(const_fn, const_unsafe_cell_new))]
Aug 17 17:50:12.111 INFO kablam!   |                                                     ^^^^^^^^^^^^^^^^^^^^^
Aug 17 17:50:12.111 INFO kablam! 
Aug 17 17:50:12.131 INFO kablam! error: Could not compile `bare-metal`.
Aug 17 17:50:12.131 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 17 17:50:12.133 INFO kablam! error: aborting due to previous error
Aug 17 17:50:12.133 INFO kablam! 
Aug 17 17:50:12.133 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Aug 17 17:50:12.157 INFO kablam! error: Could not compile `bare-metal`.
Aug 17 17:50:12.157 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 17 17:50:14.732 INFO kablam! error: build failed
Aug 17 17:50:14.735 INFO kablam! su: No module specific data is present
Aug 17 17:50:15.171 INFO running `"docker" "rm" "-f" "160d1320c30824b42b6f602287a7208a95fec30017f9f3b4b49dddf2c0ae0d08"`
Aug 17 17:50:15.372 INFO blam! 160d1320c30824b42b6f602287a7208a95fec30017f9f3b4b49dddf2c0ae0d08