Aug 02 11:23:14.023 INFO checking disjoint-set-0.0.2 against 1.27.2+tmplazy for lazy_static-1
Aug 02 11:23:14.023 INFO running: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:23:14.023 INFO creating container for: cargo +1.27.2 check --frozen --all --all-targets
Aug 02 11:23:14.023 INFO running `"docker" "create" "-v" "/tmp/crater.9ALzfMAehwIU:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/lazy_static-1/worker-2/1.27.2+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 11:23:14.311 INFO blam! f3ad2e3e396962290fc8772998ce46a65625264f301b540bd70ada0c717c37c1
Aug 02 11:23:14.312 INFO running `"docker" "start" "-a" "f3ad2e3e396962290fc8772998ce46a65625264f301b540bd70ada0c717c37c1"`
Aug 02 11:23:15.209 INFO kablam!     Checking disjoint-set v0.0.2 (file:///source)
Aug 02 11:23:15.856 INFO kablam! warning: unused import: `std::rc::Rc`
Aug 02 11:23:15.856 INFO kablam!  --> src/lib.rs:3:5
Aug 02 11:23:15.856 INFO kablam!   |
Aug 02 11:23:15.857 INFO kablam! 3 | use std::rc::Rc;
Aug 02 11:23:15.857 INFO kablam!   |     ^^^^^^^^^^^
Aug 02 11:23:15.857 INFO kablam!   |
Aug 02 11:23:15.857 INFO kablam!   = note: #[warn(unused_imports)] on by default
Aug 02 11:23:15.857 INFO kablam! 
Aug 02 11:23:16.032 INFO kablam! warning: unused variable: `p`
Aug 02 11:23:16.032 INFO kablam!   --> src/lib.rs:37:18
Aug 02 11:23:16.032 INFO kablam!    |
Aug 02 11:23:16.032 INFO kablam! 37 |             Some(p) => return,
Aug 02 11:23:16.032 INFO kablam!    |                  ^ help: consider using `_p` instead
Aug 02 11:23:16.032 INFO kablam!    |
Aug 02 11:23:16.032 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 02 11:23:16.032 INFO kablam! 
Aug 02 11:23:16.034 INFO kablam! warning: variable does not need to be mutable
Aug 02 11:23:16.035 INFO kablam!   --> src/lib.rs:35:13
Aug 02 11:23:16.035 INFO kablam!    |
Aug 02 11:23:16.035 INFO kablam! 35 |         let mut len = &mut self.set_size;
Aug 02 11:23:16.035 INFO kablam!    |             ----^^^
Aug 02 11:23:16.035 INFO kablam!    |             |
Aug 02 11:23:16.035 INFO kablam!    |             help: remove this `mut`
Aug 02 11:23:16.035 INFO kablam!    |
Aug 02 11:23:16.035 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 02 11:23:16.036 INFO kablam! 
Aug 02 11:23:16.038 INFO kablam! warning: variable does not need to be mutable
Aug 02 11:23:16.038 INFO kablam!   --> src/lib.rs:53:13
Aug 02 11:23:16.038 INFO kablam!    |
Aug 02 11:23:16.038 INFO kablam! 53 |         let mut pos: usize;
Aug 02 11:23:16.038 INFO kablam!    |             ----^^^
Aug 02 11:23:16.039 INFO kablam!    |             |
Aug 02 11:23:16.039 INFO kablam!    |             help: remove this `mut`
Aug 02 11:23:16.039 INFO kablam! 
Aug 02 11:23:16.051 INFO kablam! warning: variant is never constructed: `Root`
Aug 02 11:23:16.051 INFO kablam!  --> src/lib.rs:7:5
Aug 02 11:23:16.051 INFO kablam!   |
Aug 02 11:23:16.051 INFO kablam! 7 |     Root(ValueType, u32),
Aug 02 11:23:16.051 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Aug 02 11:23:16.051 INFO kablam!   |
Aug 02 11:23:16.051 INFO kablam!   = note: #[warn(dead_code)] on by default
Aug 02 11:23:16.051 INFO kablam! 
Aug 02 11:23:16.056 INFO kablam! warning: variant is never constructed: `Link`
Aug 02 11:23:16.056 INFO kablam!  --> src/lib.rs:8:5
Aug 02 11:23:16.056 INFO kablam!   |
Aug 02 11:23:16.056 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Aug 02 11:23:16.056 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:23:16.056 INFO kablam! 
Aug 02 11:23:16.105 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 02 11:23:16.105 INFO kablam!    --> src/lib.rs:106:5
Aug 02 11:23:16.105 INFO kablam!     |
Aug 02 11:23:16.105 INFO kablam! 106 |     ds.union(1, 2);
Aug 02 11:23:16.105 INFO kablam!     |     ^^^^^^^^^^^^^^^
Aug 02 11:23:16.105 INFO kablam!     |
Aug 02 11:23:16.105 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Aug 02 11:23:16.105 INFO kablam! 
Aug 02 11:23:16.106 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 02 11:23:16.106 INFO kablam!    --> src/lib.rs:107:5
Aug 02 11:23:16.106 INFO kablam!     |
Aug 02 11:23:16.106 INFO kablam! 107 |     ds.union(2, 3);
Aug 02 11:23:16.106 INFO kablam!     |     ^^^^^^^^^^^^^^^
Aug 02 11:23:16.106 INFO kablam! 
Aug 02 11:23:16.106 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 02 11:23:16.106 INFO kablam!    --> src/lib.rs:118:5
Aug 02 11:23:16.106 INFO kablam!     |
Aug 02 11:23:16.106 INFO kablam! 118 |     ds.union(-1, 4);
Aug 02 11:23:16.106 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Aug 02 11:23:16.106 INFO kablam! 
Aug 02 11:23:16.112 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 02 11:23:16.112 INFO kablam!    --> src/lib.rs:119:5
Aug 02 11:23:16.112 INFO kablam!     |
Aug 02 11:23:16.112 INFO kablam! 119 |     ds.union(2, 4);
Aug 02 11:23:16.112 INFO kablam!     |     ^^^^^^^^^^^^^^^
Aug 02 11:23:16.112 INFO kablam! 
Aug 02 11:23:16.125 INFO kablam! warning: unused import: `std::rc::Rc`
Aug 02 11:23:16.125 INFO kablam!  --> src/lib.rs:3:5
Aug 02 11:23:16.125 INFO kablam!   |
Aug 02 11:23:16.125 INFO kablam! 3 | use std::rc::Rc;
Aug 02 11:23:16.125 INFO kablam!   |     ^^^^^^^^^^^
Aug 02 11:23:16.125 INFO kablam!   |
Aug 02 11:23:16.125 INFO kablam!   = note: #[warn(unused_imports)] on by default
Aug 02 11:23:16.125 INFO kablam! 
Aug 02 11:23:16.237 INFO kablam! warning: unused variable: `p`
Aug 02 11:23:16.237 INFO kablam!   --> src/lib.rs:37:18
Aug 02 11:23:16.237 INFO kablam!    |
Aug 02 11:23:16.237 INFO kablam! 37 |             Some(p) => return,
Aug 02 11:23:16.237 INFO kablam!    |                  ^ help: consider using `_p` instead
Aug 02 11:23:16.237 INFO kablam!    |
Aug 02 11:23:16.237 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 02 11:23:16.237 INFO kablam! 
Aug 02 11:23:16.241 INFO kablam! warning: variable does not need to be mutable
Aug 02 11:23:16.241 INFO kablam!   --> src/lib.rs:35:13
Aug 02 11:23:16.241 INFO kablam!    |
Aug 02 11:23:16.241 INFO kablam! 35 |         let mut len = &mut self.set_size;
Aug 02 11:23:16.241 INFO kablam!    |             ----^^^
Aug 02 11:23:16.241 INFO kablam!    |             |
Aug 02 11:23:16.241 INFO kablam!    |             help: remove this `mut`
Aug 02 11:23:16.242 INFO kablam!    |
Aug 02 11:23:16.242 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 02 11:23:16.242 INFO kablam! 
Aug 02 11:23:16.242 INFO kablam! warning: variable does not need to be mutable
Aug 02 11:23:16.243 INFO kablam!   --> src/lib.rs:53:13
Aug 02 11:23:16.243 INFO kablam!    |
Aug 02 11:23:16.243 INFO kablam! 53 |         let mut pos: usize;
Aug 02 11:23:16.243 INFO kablam!    |             ----^^^
Aug 02 11:23:16.243 INFO kablam!    |             |
Aug 02 11:23:16.243 INFO kablam!    |             help: remove this `mut`
Aug 02 11:23:16.243 INFO kablam! 
Aug 02 11:23:16.253 INFO kablam! warning: variant is never constructed: `Root`
Aug 02 11:23:16.253 INFO kablam!  --> src/lib.rs:7:5
Aug 02 11:23:16.253 INFO kablam!   |
Aug 02 11:23:16.253 INFO kablam! 7 |     Root(ValueType, u32),
Aug 02 11:23:16.253 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Aug 02 11:23:16.253 INFO kablam!   |
Aug 02 11:23:16.253 INFO kablam!   = note: #[warn(dead_code)] on by default
Aug 02 11:23:16.253 INFO kablam! 
Aug 02 11:23:16.253 INFO kablam! warning: variant is never constructed: `Link`
Aug 02 11:23:16.253 INFO kablam!  --> src/lib.rs:8:5
Aug 02 11:23:16.253 INFO kablam!   |
Aug 02 11:23:16.253 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Aug 02 11:23:16.253 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 02 11:23:16.253 INFO kablam! 
Aug 02 11:23:16.325 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
Aug 02 11:23:16.330 INFO kablam! su: No module specific data is present
Aug 02 11:23:17.063 INFO running `"docker" "rm" "-f" "f3ad2e3e396962290fc8772998ce46a65625264f301b540bd70ada0c717c37c1"`
Aug 02 11:23:17.215 INFO blam! f3ad2e3e396962290fc8772998ce46a65625264f301b540bd70ada0c717c37c1