Aug 02 02:30:55.129 INFO checking persistent-vec-0.1.0 against 1.27.2 for lazy_static-1
Aug 02 02:30:55.129 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:30:55.129 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:30:55.129 INFO running `"docker" "create" "-v" "/tmp/crater.OcO5UBhjqH1w:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-5/1.27.2:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +1.27.2 check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Aug 02 02:30:55.369 INFO blam! 74bf1c62fc40f79c32262a2ccefb6b67b1a991bcade7d57074b7da722c477155
Aug 02 02:30:55.372 INFO running `"docker" "start" "-a" "74bf1c62fc40f79c32262a2ccefb6b67b1a991bcade7d57074b7da722c477155"`
Aug 02 02:30:56.455 INFO kablam!     Checking persistent-vec v0.1.0 (file:///source)
Aug 02 02:30:56.975 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:30:56.975 INFO kablam!  --> src/lib.rs:1:19
Aug 02 02:30:56.975 INFO kablam!   |
Aug 02 02:30:56.975 INFO kablam! 1 | #![cfg_attr(test, feature(test))]
Aug 02 02:30:56.975 INFO kablam!   |                   ^^^^^^^^^^^^^^
Aug 02 02:30:56.975 INFO kablam! 
Aug 02 02:30:56.978 INFO kablam! error: aborting due to previous error
Aug 02 02:30:56.978 INFO kablam! 
Aug 02 02:30:56.978 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:30:56.986 INFO kablam! error: Could not compile `persistent-vec`.
Aug 02 02:30:56.986 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 02:30:57.809 INFO kablam! warning: variable does not need to be mutable
Aug 02 02:30:57.809 INFO kablam!    --> src/lib.rs:352:17
Aug 02 02:30:57.809 INFO kablam!     |
Aug 02 02:30:57.809 INFO kablam! 352 |             let mut q = p; // FIXME
Aug 02 02:30:57.809 INFO kablam!     |                 ----^
Aug 02 02:30:57.809 INFO kablam!     |                 |
Aug 02 02:30:57.809 INFO kablam!     |                 help: remove this `mut`
Aug 02 02:30:57.810 INFO kablam!     |
Aug 02 02:30:57.810 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 02 02:30:57.810 INFO kablam! 
Aug 02 02:30:57.821 INFO kablam! warning: variable does not need to be mutable
Aug 02 02:30:57.821 INFO kablam!    --> src/lib.rs:421:17
Aug 02 02:30:57.821 INFO kablam!     |
Aug 02 02:30:57.821 INFO kablam! 421 |             let mut q = p; // FIXME
Aug 02 02:30:57.821 INFO kablam!     |                 ----^
Aug 02 02:30:57.821 INFO kablam!     |                 |
Aug 02 02:30:57.821 INFO kablam!     |                 help: remove this `mut`
Aug 02 02:30:57.821 INFO kablam! 
Aug 02 02:30:57.830 INFO kablam! warning: constant item is never used: `VALIDATE`
Aug 02 02:30:57.830 INFO kablam!   --> src/lib.rs:20:1
Aug 02 02:30:57.830 INFO kablam!    |
Aug 02 02:30:57.830 INFO kablam! 20 | const VALIDATE: bool = false;
Aug 02 02:30:57.830 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 02:30:57.830 INFO kablam!    |
Aug 02 02:30:57.830 INFO kablam!    = note: #[warn(dead_code)] on by default
Aug 02 02:30:57.830 INFO kablam! 
Aug 02 02:30:57.896 INFO kablam! error: build failed
Aug 02 02:30:57.901 INFO kablam! su: No module specific data is present
Aug 02 02:30:58.578 INFO running `"docker" "rm" "-f" "74bf1c62fc40f79c32262a2ccefb6b67b1a991bcade7d57074b7da722c477155"`
Aug 02 02:30:58.742 INFO blam! 74bf1c62fc40f79c32262a2ccefb6b67b1a991bcade7d57074b7da722c477155