Sep 05 01:17:45.688 INFO checking calculator-0.0.1 against master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8 for pr-53913
Sep 05 01:17:45.688 INFO running: cargo +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets
Sep 05 01:17:45.688 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53913/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53913/worker-0/master#2687112ea6a8701cbf36e6dd4d77d64694cf93d8:/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 +2687112ea6a8701cbf36e6dd4d77d64694cf93d8-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 01:17:45.858 INFO blam! 709bc120cc4e581f8d3c0d581197f5ad8aac91b24583333d8d2f13d09ca6af36
Sep 05 01:17:45.860 INFO running `"docker" "start" "-a" "709bc120cc4e581f8d3c0d581197f5ad8aac91b24583333d8d2f13d09ca6af36"`
Sep 05 01:17:47.007 INFO kablam!     Checking vec_map v0.0.1
Sep 05 01:17:47.793 INFO kablam!     Checking calculator v0.0.1 (file:///source)
Sep 05 01:17:48.921 INFO kablam! error[E0635]: unknown feature `collections`
Sep 05 01:17:48.921 INFO kablam!  --> src/expr.rs:4:12
Sep 05 01:17:48.921 INFO kablam!   |
Sep 05 01:17:48.921 INFO kablam! 4 | #![feature(collections)]
Sep 05 01:17:48.921 INFO kablam!   |            ^^^^^^^^^^^
Sep 05 01:17:48.921 INFO kablam! 
Sep 05 01:17:48.942 INFO kablam! error: aborting due to previous error
Sep 05 01:17:48.942 INFO kablam! 
Sep 05 01:17:48.942 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 05 01:17:48.950 INFO kablam! error: Could not compile `calculator`.
Sep 05 01:17:48.950 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 05 01:17:49.218 INFO kablam! error[E0635]: unknown feature `collections`
Sep 05 01:17:49.218 INFO kablam!  --> src/expr.rs:4:12
Sep 05 01:17:49.218 INFO kablam!   |
Sep 05 01:17:49.218 INFO kablam! 4 | #![feature(collections)]
Sep 05 01:17:49.218 INFO kablam!   |            ^^^^^^^^^^^
Sep 05 01:17:49.218 INFO kablam! 
Sep 05 01:17:49.241 INFO kablam! error: aborting due to previous error
Sep 05 01:17:49.241 INFO kablam! 
Sep 05 01:17:49.241 INFO kablam! For more information about this error, try `rustc --explain E0635`.
Sep 05 01:17:49.248 INFO kablam! error: Could not compile `calculator`.
Sep 05 01:17:49.248 INFO kablam! 
Sep 05 01:17:49.248 INFO kablam! To learn more, run the command again with --verbose.
Sep 05 01:17:49.249 INFO kablam! su: No module specific data is present
Sep 05 01:17:49.977 INFO running `"docker" "rm" "-f" "709bc120cc4e581f8d3c0d581197f5ad8aac91b24583333d8d2f13d09ca6af36"`
Sep 05 01:17:50.147 INFO blam! 709bc120cc4e581f8d3c0d581197f5ad8aac91b24583333d8d2f13d09ca6af36