Aug 02 11:23:14.454 INFO checking disjoint-set-0.0.2 against 1.27.2 for lazy_static-1
Aug 02 11:23:14.454 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:23:14.454 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:23:14.454 INFO running `"docker" "create" "-v" "/tmp/crater.cskjR0T9BSxI:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-3/1.27.2:/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 11:23:14.702 INFO blam! d48461bcfffd65cf10923e0539ccd3af302964a107ea46f25688f9914b0e0cb4
Aug 02 11:23:14.704 INFO running `"docker" "start" "-a" "d48461bcfffd65cf10923e0539ccd3af302964a107ea46f25688f9914b0e0cb4"`
Aug 02 11:23:15.658 INFO kablam!     Checking disjoint-set v0.0.2 (file:///source)
Aug 02 11:23:16.143 INFO kablam! warning: unused import: `std::rc::Rc`
Aug 02 11:23:16.143 INFO kablam!  --> src/lib.rs:3:5
Aug 02 11:23:16.143 INFO kablam!   |
Aug 02 11:23:16.143 INFO kablam! 3 | use std::rc::Rc;
Aug 02 11:23:16.143 INFO kablam!   |     ^^^^^^^^^^^
Aug 02 11:23:16.144 INFO kablam!   |
Aug 02 11:23:16.144 INFO kablam!   = note: #[warn(unused_imports)] on by default
Aug 02 11:23:16.144 INFO kablam! 
Aug 02 11:23:16.227 INFO kablam! warning: unused variable: `p`
Aug 02 11:23:16.227 INFO kablam!   --> src/lib.rs:37:18
Aug 02 11:23:16.227 INFO kablam!    |
Aug 02 11:23:16.227 INFO kablam! 37 |             Some(p) => return,
Aug 02 11:23:16.227 INFO kablam!    |                  ^ help: consider using `_p` instead
Aug 02 11:23:16.227 INFO kablam!    |
Aug 02 11:23:16.227 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 02 11:23:16.227 INFO kablam! 
Aug 02 11:23:16.232 INFO kablam! warning: variable does not need to be mutable
Aug 02 11:23:16.232 INFO kablam!   --> src/lib.rs:35:13
Aug 02 11:23:16.232 INFO kablam!    |
Aug 02 11:23:16.232 INFO kablam! 35 |         let mut len = &mut self.set_size;
Aug 02 11:23:16.232 INFO kablam!    |             ----^^^
Aug 02 11:23:16.232 INFO kablam!    |             |
Aug 02 11:23:16.232 INFO kablam!    |             help: remove this `mut`
Aug 02 11:23:16.232 INFO kablam!    |
Aug 02 11:23:16.232 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 02 11:23:16.233 INFO kablam! 
Aug 02 11:23:16.234 INFO kablam! warning: variable does not need to be mutable
Aug 02 11:23:16.234 INFO kablam!   --> src/lib.rs:53:13
Aug 02 11:23:16.234 INFO kablam!    |
Aug 02 11:23:16.234 INFO kablam! 53 |         let mut pos: usize;
Aug 02 11:23:16.234 INFO kablam!    |             ----^^^
Aug 02 11:23:16.234 INFO kablam!    |             |
Aug 02 11:23:16.234 INFO kablam!    |             help: remove this `mut`
Aug 02 11:23:16.234 INFO kablam! 
Aug 02 11:23:16.238 INFO kablam! warning: variant is never constructed: `Root`
Aug 02 11:23:16.238 INFO kablam!  --> src/lib.rs:7:5
Aug 02 11:23:16.238 INFO kablam!   |
Aug 02 11:23:16.239 INFO kablam! 7 |     Root(ValueType, u32),
Aug 02 11:23:16.239 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Aug 02 11:23:16.239 INFO kablam!   |
Aug 02 11:23:16.239 INFO kablam!   = note: #[warn(dead_code)] on by default
Aug 02 11:23:16.239 INFO kablam! 
Aug 02 11:23:16.239 INFO kablam! warning: variant is never constructed: `Link`
Aug 02 11:23:16.239 INFO kablam!  --> src/lib.rs:8:5
Aug 02 11:23:16.239 INFO kablam!   |
Aug 02 11:23:16.239 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Aug 02 11:23:16.239 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:23:16.239 INFO kablam! 
Aug 02 11:23:16.421 INFO kablam! warning: unused import: `std::rc::Rc`
Aug 02 11:23:16.421 INFO kablam!  --> src/lib.rs:3:5
Aug 02 11:23:16.421 INFO kablam!   |
Aug 02 11:23:16.421 INFO kablam! 3 | use std::rc::Rc;
Aug 02 11:23:16.421 INFO kablam!   |     ^^^^^^^^^^^
Aug 02 11:23:16.422 INFO kablam!   |
Aug 02 11:23:16.422 INFO kablam!   = note: #[warn(unused_imports)] on by default
Aug 02 11:23:16.422 INFO kablam! 
Aug 02 11:23:16.518 INFO kablam! warning: unused variable: `p`
Aug 02 11:23:16.518 INFO kablam!   --> src/lib.rs:37:18
Aug 02 11:23:16.518 INFO kablam!    |
Aug 02 11:23:16.518 INFO kablam! 37 |             Some(p) => return,
Aug 02 11:23:16.518 INFO kablam!    |                  ^ help: consider using `_p` instead
Aug 02 11:23:16.518 INFO kablam!    |
Aug 02 11:23:16.518 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 02 11:23:16.518 INFO kablam! 
Aug 02 11:23:16.523 INFO kablam! warning: variable does not need to be mutable
Aug 02 11:23:16.523 INFO kablam!   --> src/lib.rs:35:13
Aug 02 11:23:16.523 INFO kablam!    |
Aug 02 11:23:16.523 INFO kablam! 35 |         let mut len = &mut self.set_size;
Aug 02 11:23:16.523 INFO kablam!    |             ----^^^
Aug 02 11:23:16.523 INFO kablam!    |             |
Aug 02 11:23:16.523 INFO kablam!    |             help: remove this `mut`
Aug 02 11:23:16.523 INFO kablam!    |
Aug 02 11:23:16.524 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 02 11:23:16.524 INFO kablam! 
Aug 02 11:23:16.525 INFO kablam! warning: variable does not need to be mutable
Aug 02 11:23:16.525 INFO kablam!   --> src/lib.rs:53:13
Aug 02 11:23:16.525 INFO kablam!    |
Aug 02 11:23:16.525 INFO kablam! 53 |         let mut pos: usize;
Aug 02 11:23:16.526 INFO kablam!    |             ----^^^
Aug 02 11:23:16.526 INFO kablam!    |             |
Aug 02 11:23:16.526 INFO kablam!    |             help: remove this `mut`
Aug 02 11:23:16.526 INFO kablam! 
Aug 02 11:23:16.534 INFO kablam! warning: variant is never constructed: `Root`
Aug 02 11:23:16.534 INFO kablam!  --> src/lib.rs:7:5
Aug 02 11:23:16.534 INFO kablam!   |
Aug 02 11:23:16.534 INFO kablam! 7 |     Root(ValueType, u32),
Aug 02 11:23:16.534 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Aug 02 11:23:16.535 INFO kablam!   |
Aug 02 11:23:16.535 INFO kablam!   = note: #[warn(dead_code)] on by default
Aug 02 11:23:16.535 INFO kablam! 
Aug 02 11:23:16.535 INFO kablam! warning: variant is never constructed: `Link`
Aug 02 11:23:16.535 INFO kablam!  --> src/lib.rs:8:5
Aug 02 11:23:16.535 INFO kablam!   |
Aug 02 11:23:16.535 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Aug 02 11:23:16.535 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:23:16.536 INFO kablam! 
Aug 02 11:23:16.567 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 02 11:23:16.567 INFO kablam!    --> src/lib.rs:106:5
Aug 02 11:23:16.567 INFO kablam!     |
Aug 02 11:23:16.567 INFO kablam! 106 |     ds.union(1, 2);
Aug 02 11:23:16.567 INFO kablam!     |     ^^^^^^^^^^^^^^^
Aug 02 11:23:16.567 INFO kablam!     |
Aug 02 11:23:16.567 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Aug 02 11:23:16.568 INFO kablam! 
Aug 02 11:23:16.568 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 02 11:23:16.568 INFO kablam!    --> src/lib.rs:107:5
Aug 02 11:23:16.568 INFO kablam!     |
Aug 02 11:23:16.568 INFO kablam! 107 |     ds.union(2, 3);
Aug 02 11:23:16.568 INFO kablam!     |     ^^^^^^^^^^^^^^^
Aug 02 11:23:16.569 INFO kablam! 
Aug 02 11:23:16.569 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 02 11:23:16.569 INFO kablam!    --> src/lib.rs:118:5
Aug 02 11:23:16.569 INFO kablam!     |
Aug 02 11:23:16.569 INFO kablam! 118 |     ds.union(-1, 4);
Aug 02 11:23:16.569 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Aug 02 11:23:16.570 INFO kablam! 
Aug 02 11:23:16.570 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 02 11:23:16.570 INFO kablam!    --> src/lib.rs:119:5
Aug 02 11:23:16.570 INFO kablam!     |
Aug 02 11:23:16.570 INFO kablam! 119 |     ds.union(2, 4);
Aug 02 11:23:16.570 INFO kablam!     |     ^^^^^^^^^^^^^^^
Aug 02 11:23:16.571 INFO kablam! 
Aug 02 11:23:16.599 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
Aug 02 11:23:16.605 INFO kablam! su: No module specific data is present
Aug 02 11:23:17.282 INFO running `"docker" "rm" "-f" "d48461bcfffd65cf10923e0539ccd3af302964a107ea46f25688f9914b0e0cb4"`
Aug 02 11:23:17.452 INFO blam! d48461bcfffd65cf10923e0539ccd3af302964a107ea46f25688f9914b0e0cb4