Aug 30 19:35:58.105 INFO checking disjoint-set-0.0.2 against try#bc5a74802bb3ffc82f51ef04bca58d64220124c4 for pr-53699
Aug 30 19:35:58.105 INFO running: cargo +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets
Aug 30 19:35:58.105 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53699/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53699/worker-0/try#bc5a74802bb3ffc82f51ef04bca58d64220124c4:/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 +bc5a74802bb3ffc82f51ef04bca58d64220124c4-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 19:35:58.318 INFO blam! 9a9f99fea65ba5ccbc3742723937137d1f17418f8613d021cefc6d370c45bb51
Aug 30 19:35:58.321 INFO running `"docker" "start" "-a" "9a9f99fea65ba5ccbc3742723937137d1f17418f8613d021cefc6d370c45bb51"`
Aug 30 19:35:59.019 INFO kablam!     Checking disjoint-set v0.0.2 (file:///source)
Aug 30 19:35:59.579 INFO kablam! warning: unused import: `std::rc::Rc`
Aug 30 19:35:59.579 INFO kablam!  --> src/lib.rs:3:5
Aug 30 19:35:59.579 INFO kablam!   |
Aug 30 19:35:59.579 INFO kablam! 3 | use std::rc::Rc;
Aug 30 19:35:59.579 INFO kablam!   |     ^^^^^^^^^^^
Aug 30 19:35:59.579 INFO kablam!   |
Aug 30 19:35:59.579 INFO kablam!   = note: #[warn(unused_imports)] on by default
Aug 30 19:35:59.579 INFO kablam! 
Aug 30 19:35:59.638 INFO kablam! warning: unused variable: `p`
Aug 30 19:35:59.638 INFO kablam!   --> src/lib.rs:37:18
Aug 30 19:35:59.638 INFO kablam!    |
Aug 30 19:35:59.638 INFO kablam! 37 |             Some(p) => return,
Aug 30 19:35:59.638 INFO kablam!    |                  ^ help: consider using `_p` instead
Aug 30 19:35:59.638 INFO kablam!    |
Aug 30 19:35:59.638 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 30 19:35:59.638 INFO kablam! 
Aug 30 19:35:59.643 INFO kablam! warning: variable does not need to be mutable
Aug 30 19:35:59.643 INFO kablam!   --> src/lib.rs:35:13
Aug 30 19:35:59.643 INFO kablam!    |
Aug 30 19:35:59.643 INFO kablam! 35 |         let mut len = &mut self.set_size;
Aug 30 19:35:59.643 INFO kablam!    |             ----^^^
Aug 30 19:35:59.643 INFO kablam!    |             |
Aug 30 19:35:59.643 INFO kablam!    |             help: remove this `mut`
Aug 30 19:35:59.643 INFO kablam!    |
Aug 30 19:35:59.643 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 30 19:35:59.644 INFO kablam! 
Aug 30 19:35:59.644 INFO kablam! warning: variable does not need to be mutable
Aug 30 19:35:59.644 INFO kablam!   --> src/lib.rs:53:13
Aug 30 19:35:59.644 INFO kablam!    |
Aug 30 19:35:59.644 INFO kablam! 53 |         let mut pos: usize;
Aug 30 19:35:59.644 INFO kablam!    |             ----^^^
Aug 30 19:35:59.644 INFO kablam!    |             |
Aug 30 19:35:59.644 INFO kablam!    |             help: remove this `mut`
Aug 30 19:35:59.645 INFO kablam! 
Aug 30 19:35:59.647 INFO kablam! warning: variant is never constructed: `Root`
Aug 30 19:35:59.647 INFO kablam!  --> src/lib.rs:7:5
Aug 30 19:35:59.647 INFO kablam!   |
Aug 30 19:35:59.647 INFO kablam! 7 |     Root(ValueType, u32),
Aug 30 19:35:59.647 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Aug 30 19:35:59.647 INFO kablam!   |
Aug 30 19:35:59.647 INFO kablam!   = note: #[warn(dead_code)] on by default
Aug 30 19:35:59.647 INFO kablam! 
Aug 30 19:35:59.647 INFO kablam! warning: variant is never constructed: `Link`
Aug 30 19:35:59.647 INFO kablam!  --> src/lib.rs:8:5
Aug 30 19:35:59.647 INFO kablam!   |
Aug 30 19:35:59.648 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Aug 30 19:35:59.648 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 30 19:35:59.648 INFO kablam! 
Aug 30 19:35:59.913 INFO kablam! warning: unused import: `std::rc::Rc`
Aug 30 19:35:59.913 INFO kablam!  --> src/lib.rs:3:5
Aug 30 19:35:59.913 INFO kablam!   |
Aug 30 19:35:59.913 INFO kablam! 3 | use std::rc::Rc;
Aug 30 19:35:59.913 INFO kablam!   |     ^^^^^^^^^^^
Aug 30 19:35:59.913 INFO kablam!   |
Aug 30 19:35:59.913 INFO kablam!   = note: #[warn(unused_imports)] on by default
Aug 30 19:35:59.913 INFO kablam! 
Aug 30 19:35:59.989 INFO kablam! warning: unused variable: `p`
Aug 30 19:35:59.989 INFO kablam!   --> src/lib.rs:37:18
Aug 30 19:35:59.989 INFO kablam!    |
Aug 30 19:35:59.989 INFO kablam! 37 |             Some(p) => return,
Aug 30 19:35:59.989 INFO kablam!    |                  ^ help: consider using `_p` instead
Aug 30 19:35:59.989 INFO kablam!    |
Aug 30 19:35:59.989 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 30 19:35:59.989 INFO kablam! 
Aug 30 19:35:59.994 INFO kablam! warning: variable does not need to be mutable
Aug 30 19:35:59.994 INFO kablam!   --> src/lib.rs:35:13
Aug 30 19:35:59.994 INFO kablam!    |
Aug 30 19:35:59.994 INFO kablam! 35 |         let mut len = &mut self.set_size;
Aug 30 19:35:59.994 INFO kablam!    |             ----^^^
Aug 30 19:35:59.994 INFO kablam!    |             |
Aug 30 19:35:59.994 INFO kablam!    |             help: remove this `mut`
Aug 30 19:35:59.994 INFO kablam!    |
Aug 30 19:35:59.994 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 30 19:35:59.994 INFO kablam! 
Aug 30 19:35:59.995 INFO kablam! warning: variable does not need to be mutable
Aug 30 19:35:59.995 INFO kablam!   --> src/lib.rs:53:13
Aug 30 19:35:59.995 INFO kablam!    |
Aug 30 19:35:59.995 INFO kablam! 53 |         let mut pos: usize;
Aug 30 19:35:59.995 INFO kablam!    |             ----^^^
Aug 30 19:35:59.995 INFO kablam!    |             |
Aug 30 19:35:59.995 INFO kablam!    |             help: remove this `mut`
Aug 30 19:35:59.995 INFO kablam! 
Aug 30 19:36:00.000 INFO kablam! warning: variant is never constructed: `Root`
Aug 30 19:36:00.000 INFO kablam!  --> src/lib.rs:7:5
Aug 30 19:36:00.000 INFO kablam!   |
Aug 30 19:36:00.000 INFO kablam! 7 |     Root(ValueType, u32),
Aug 30 19:36:00.000 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Aug 30 19:36:00.000 INFO kablam!   |
Aug 30 19:36:00.000 INFO kablam!   = note: #[warn(dead_code)] on by default
Aug 30 19:36:00.000 INFO kablam! 
Aug 30 19:36:00.000 INFO kablam! warning: variant is never constructed: `Link`
Aug 30 19:36:00.000 INFO kablam!  --> src/lib.rs:8:5
Aug 30 19:36:00.000 INFO kablam!   |
Aug 30 19:36:00.000 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Aug 30 19:36:00.000 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 30 19:36:00.000 INFO kablam! 
Aug 30 19:36:00.015 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 19:36:00.015 INFO kablam!    --> src/lib.rs:106:5
Aug 30 19:36:00.015 INFO kablam!     |
Aug 30 19:36:00.015 INFO kablam! 106 |     ds.union(1, 2);
Aug 30 19:36:00.016 INFO kablam!     |     ^^^^^^^^^^^^^^^
Aug 30 19:36:00.016 INFO kablam!     |
Aug 30 19:36:00.016 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Aug 30 19:36:00.016 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 19:36:00.016 INFO kablam! 
Aug 30 19:36:00.016 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 19:36:00.016 INFO kablam!    --> src/lib.rs:107:5
Aug 30 19:36:00.016 INFO kablam!     |
Aug 30 19:36:00.016 INFO kablam! 107 |     ds.union(2, 3);
Aug 30 19:36:00.016 INFO kablam!     |     ^^^^^^^^^^^^^^^
Aug 30 19:36:00.016 INFO kablam!     |
Aug 30 19:36:00.016 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 19:36:00.016 INFO kablam! 
Aug 30 19:36:00.016 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 19:36:00.016 INFO kablam!    --> src/lib.rs:118:5
Aug 30 19:36:00.016 INFO kablam!     |
Aug 30 19:36:00.016 INFO kablam! 118 |     ds.union(-1, 4);
Aug 30 19:36:00.016 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Aug 30 19:36:00.016 INFO kablam!     |
Aug 30 19:36:00.016 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 19:36:00.016 INFO kablam! 
Aug 30 19:36:00.017 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 19:36:00.017 INFO kablam!    --> src/lib.rs:119:5
Aug 30 19:36:00.017 INFO kablam!     |
Aug 30 19:36:00.017 INFO kablam! 119 |     ds.union(2, 4);
Aug 30 19:36:00.017 INFO kablam!     |     ^^^^^^^^^^^^^^^
Aug 30 19:36:00.017 INFO kablam!     |
Aug 30 19:36:00.017 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 19:36:00.017 INFO kablam! 
Aug 30 19:36:00.028 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
Aug 30 19:36:00.030 INFO kablam! su: No module specific data is present
Aug 30 19:36:00.566 INFO running `"docker" "rm" "-f" "9a9f99fea65ba5ccbc3742723937137d1f17418f8613d021cefc6d370c45bb51"`
Aug 30 19:36:00.706 INFO blam! 9a9f99fea65ba5ccbc3742723937137d1f17418f8613d021cefc6d370c45bb51