Aug 02 02:30:54.279 INFO checking persistent-vec-0.1.0 against 1.27.2+tmplazy for lazy_static-1
Aug 02 02:30:54.279 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:30:54.279 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 02:30:54.279 INFO running `"docker" "create" "-v" "/tmp/crater.UNw6y8UGe1Og:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-7/1.27.2+tmplazy:/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 02:30:54.622 INFO blam! 5fa48ddad2897fcb39f21b56d3028088835ef5d877c6c264a0368208fdd15790
Aug 02 02:30:54.625 INFO running `"docker" "start" "-a" "5fa48ddad2897fcb39f21b56d3028088835ef5d877c6c264a0368208fdd15790"`
Aug 02 02:30:55.906 INFO kablam!     Checking persistent-vec v0.1.0 (file:///source)
Aug 02 02:30:56.476 INFO kablam! error[E0554]: #![feature] may not be used on the stable release channel
Aug 02 02:30:56.476 INFO kablam!  --> src/lib.rs:1:19
Aug 02 02:30:56.476 INFO kablam!   |
Aug 02 02:30:56.476 INFO kablam! 1 | #![cfg_attr(test, feature(test))]
Aug 02 02:30:56.476 INFO kablam!   |                   ^^^^^^^^^^^^^^
Aug 02 02:30:56.476 INFO kablam! 
Aug 02 02:30:56.479 INFO kablam! error: aborting due to previous error
Aug 02 02:30:56.479 INFO kablam! 
Aug 02 02:30:56.479 INFO kablam! For more information about this error, try `rustc --explain E0554`.
Aug 02 02:30:56.486 INFO kablam! error: Could not compile `persistent-vec`.
Aug 02 02:30:56.486 INFO kablam! warning: build failed, waiting for other jobs to finish...
Aug 02 02:30:57.114 INFO kablam! warning: variable does not need to be mutable
Aug 02 02:30:57.114 INFO kablam!    --> src/lib.rs:352:17
Aug 02 02:30:57.115 INFO kablam!     |
Aug 02 02:30:57.115 INFO kablam! 352 |             let mut q = p; // FIXME
Aug 02 02:30:57.115 INFO kablam!     |                 ----^
Aug 02 02:30:57.115 INFO kablam!     |                 |
Aug 02 02:30:57.115 INFO kablam!     |                 help: remove this `mut`
Aug 02 02:30:57.116 INFO kablam!     |
Aug 02 02:30:57.116 INFO kablam!     = note: #[warn(unused_mut)] on by default
Aug 02 02:30:57.116 INFO kablam! 
Aug 02 02:30:57.132 INFO kablam! warning: variable does not need to be mutable
Aug 02 02:30:57.132 INFO kablam!    --> src/lib.rs:421:17
Aug 02 02:30:57.132 INFO kablam!     |
Aug 02 02:30:57.132 INFO kablam! 421 |             let mut q = p; // FIXME
Aug 02 02:30:57.132 INFO kablam!     |                 ----^
Aug 02 02:30:57.132 INFO kablam!     |                 |
Aug 02 02:30:57.132 INFO kablam!     |                 help: remove this `mut`
Aug 02 02:30:57.133 INFO kablam! 
Aug 02 02:30:57.151 INFO kablam! warning: constant item is never used: `VALIDATE`
Aug 02 02:30:57.151 INFO kablam!   --> src/lib.rs:20:1
Aug 02 02:30:57.151 INFO kablam!    |
Aug 02 02:30:57.152 INFO kablam! 20 | const VALIDATE: bool = false;
Aug 02 02:30:57.152 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 02:30:57.152 INFO kablam!    |
Aug 02 02:30:57.152 INFO kablam!    = note: #[warn(dead_code)] on by default
Aug 02 02:30:57.152 INFO kablam! 
Aug 02 02:30:57.207 INFO kablam! error: build failed
Aug 02 02:30:57.225 INFO kablam! su: No module specific data is present
Aug 02 02:30:57.794 INFO running `"docker" "rm" "-f" "5fa48ddad2897fcb39f21b56d3028088835ef5d877c6c264a0368208fdd15790"`
Aug 02 02:30:57.972 INFO blam! 5fa48ddad2897fcb39f21b56d3028088835ef5d877c6c264a0368208fdd15790