Aug 30 19:57:00.909 INFO checking disjoint-set-0.0.2 against master#ede55518431154bc761f7b2438cce9078c162700 for pr-53707
Aug 30 19:57:00.909 INFO running: cargo +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets
Aug 30 19:57:00.909 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53707/master#ede55518431154bc761f7b2438cce9078c162700:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-3/master#ede55518431154bc761f7b2438cce9078c162700:/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 +ede55518431154bc761f7b2438cce9078c162700-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 19:57:01.092 INFO blam! 1ef2d5ceb39ae6a26da7c4dccc9f3b6f894a70bbe7ff9f0ebdb7f0116ce33e5e
Aug 30 19:57:01.094 INFO running `"docker" "start" "-a" "1ef2d5ceb39ae6a26da7c4dccc9f3b6f894a70bbe7ff9f0ebdb7f0116ce33e5e"`
Aug 30 19:57:01.909 INFO kablam!     Checking disjoint-set v0.0.2 (file:///source)
Aug 30 19:57:02.438 INFO kablam! warning: unused import: `std::rc::Rc`
Aug 30 19:57:02.438 INFO kablam!  --> src/lib.rs:3:5
Aug 30 19:57:02.438 INFO kablam!   |
Aug 30 19:57:02.438 INFO kablam! 3 | use std::rc::Rc;
Aug 30 19:57:02.438 INFO kablam!   |     ^^^^^^^^^^^
Aug 30 19:57:02.438 INFO kablam!   |
Aug 30 19:57:02.438 INFO kablam!   = note: #[warn(unused_imports)] on by default
Aug 30 19:57:02.438 INFO kablam! 
Aug 30 19:57:02.483 INFO kablam! warning: unused variable: `p`
Aug 30 19:57:02.483 INFO kablam!   --> src/lib.rs:37:18
Aug 30 19:57:02.483 INFO kablam!    |
Aug 30 19:57:02.483 INFO kablam! 37 |             Some(p) => return,
Aug 30 19:57:02.483 INFO kablam!    |                  ^ help: consider using `_p` instead
Aug 30 19:57:02.483 INFO kablam!    |
Aug 30 19:57:02.483 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 30 19:57:02.483 INFO kablam! 
Aug 30 19:57:02.486 INFO kablam! warning: variable does not need to be mutable
Aug 30 19:57:02.486 INFO kablam!   --> src/lib.rs:35:13
Aug 30 19:57:02.486 INFO kablam!    |
Aug 30 19:57:02.487 INFO kablam! 35 |         let mut len = &mut self.set_size;
Aug 30 19:57:02.487 INFO kablam!    |             ----^^^
Aug 30 19:57:02.487 INFO kablam!    |             |
Aug 30 19:57:02.487 INFO kablam!    |             help: remove this `mut`
Aug 30 19:57:02.487 INFO kablam!    |
Aug 30 19:57:02.487 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 30 19:57:02.487 INFO kablam! 
Aug 30 19:57:02.487 INFO kablam! warning: variable does not need to be mutable
Aug 30 19:57:02.487 INFO kablam!   --> src/lib.rs:53:13
Aug 30 19:57:02.487 INFO kablam!    |
Aug 30 19:57:02.487 INFO kablam! 53 |         let mut pos: usize;
Aug 30 19:57:02.487 INFO kablam!    |             ----^^^
Aug 30 19:57:02.487 INFO kablam!    |             |
Aug 30 19:57:02.487 INFO kablam!    |             help: remove this `mut`
Aug 30 19:57:02.487 INFO kablam! 
Aug 30 19:57:02.489 INFO kablam! warning: variant is never constructed: `Root`
Aug 30 19:57:02.489 INFO kablam!  --> src/lib.rs:7:5
Aug 30 19:57:02.489 INFO kablam!   |
Aug 30 19:57:02.489 INFO kablam! 7 |     Root(ValueType, u32),
Aug 30 19:57:02.489 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Aug 30 19:57:02.489 INFO kablam!   |
Aug 30 19:57:02.489 INFO kablam!   = note: #[warn(dead_code)] on by default
Aug 30 19:57:02.489 INFO kablam! 
Aug 30 19:57:02.489 INFO kablam! warning: variant is never constructed: `Link`
Aug 30 19:57:02.489 INFO kablam!  --> src/lib.rs:8:5
Aug 30 19:57:02.489 INFO kablam!   |
Aug 30 19:57:02.489 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Aug 30 19:57:02.489 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 30 19:57:02.489 INFO kablam! 
Aug 30 19:57:02.583 INFO kablam! warning: unused import: `std::rc::Rc`
Aug 30 19:57:02.583 INFO kablam!  --> src/lib.rs:3:5
Aug 30 19:57:02.583 INFO kablam!   |
Aug 30 19:57:02.583 INFO kablam! 3 | use std::rc::Rc;
Aug 30 19:57:02.583 INFO kablam!   |     ^^^^^^^^^^^
Aug 30 19:57:02.583 INFO kablam!   |
Aug 30 19:57:02.583 INFO kablam!   = note: #[warn(unused_imports)] on by default
Aug 30 19:57:02.583 INFO kablam! 
Aug 30 19:57:02.672 INFO kablam! warning: unused variable: `p`
Aug 30 19:57:02.672 INFO kablam!   --> src/lib.rs:37:18
Aug 30 19:57:02.672 INFO kablam!    |
Aug 30 19:57:02.672 INFO kablam! 37 |             Some(p) => return,
Aug 30 19:57:02.672 INFO kablam!    |                  ^ help: consider using `_p` instead
Aug 30 19:57:02.672 INFO kablam!    |
Aug 30 19:57:02.672 INFO kablam!    = note: #[warn(unused_variables)] on by default
Aug 30 19:57:02.672 INFO kablam! 
Aug 30 19:57:02.678 INFO kablam! warning: variable does not need to be mutable
Aug 30 19:57:02.678 INFO kablam!   --> src/lib.rs:35:13
Aug 30 19:57:02.678 INFO kablam!    |
Aug 30 19:57:02.678 INFO kablam! 35 |         let mut len = &mut self.set_size;
Aug 30 19:57:02.678 INFO kablam!    |             ----^^^
Aug 30 19:57:02.678 INFO kablam!    |             |
Aug 30 19:57:02.678 INFO kablam!    |             help: remove this `mut`
Aug 30 19:57:02.678 INFO kablam!    |
Aug 30 19:57:02.678 INFO kablam!    = note: #[warn(unused_mut)] on by default
Aug 30 19:57:02.678 INFO kablam! 
Aug 30 19:57:02.679 INFO kablam! warning: variable does not need to be mutable
Aug 30 19:57:02.679 INFO kablam!   --> src/lib.rs:53:13
Aug 30 19:57:02.679 INFO kablam!    |
Aug 30 19:57:02.679 INFO kablam! 53 |         let mut pos: usize;
Aug 30 19:57:02.679 INFO kablam!    |             ----^^^
Aug 30 19:57:02.679 INFO kablam!    |             |
Aug 30 19:57:02.679 INFO kablam!    |             help: remove this `mut`
Aug 30 19:57:02.679 INFO kablam! 
Aug 30 19:57:02.686 INFO kablam! warning: variant is never constructed: `Root`
Aug 30 19:57:02.686 INFO kablam!  --> src/lib.rs:7:5
Aug 30 19:57:02.686 INFO kablam!   |
Aug 30 19:57:02.686 INFO kablam! 7 |     Root(ValueType, u32),
Aug 30 19:57:02.686 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Aug 30 19:57:02.686 INFO kablam!   |
Aug 30 19:57:02.686 INFO kablam!   = note: #[warn(dead_code)] on by default
Aug 30 19:57:02.686 INFO kablam! 
Aug 30 19:57:02.686 INFO kablam! warning: variant is never constructed: `Link`
Aug 30 19:57:02.686 INFO kablam!  --> src/lib.rs:8:5
Aug 30 19:57:02.686 INFO kablam!   |
Aug 30 19:57:02.686 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Aug 30 19:57:02.686 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 30 19:57:02.686 INFO kablam! 
Aug 30 19:57:02.709 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 19:57:02.709 INFO kablam!    --> src/lib.rs:106:5
Aug 30 19:57:02.709 INFO kablam!     |
Aug 30 19:57:02.709 INFO kablam! 106 |     ds.union(1, 2);
Aug 30 19:57:02.709 INFO kablam!     |     ^^^^^^^^^^^^^^^
Aug 30 19:57:02.710 INFO kablam!     |
Aug 30 19:57:02.710 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Aug 30 19:57:02.710 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 19:57:02.710 INFO kablam! 
Aug 30 19:57:02.710 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 19:57:02.710 INFO kablam!    --> src/lib.rs:107:5
Aug 30 19:57:02.710 INFO kablam!     |
Aug 30 19:57:02.710 INFO kablam! 107 |     ds.union(2, 3);
Aug 30 19:57:02.710 INFO kablam!     |     ^^^^^^^^^^^^^^^
Aug 30 19:57:02.710 INFO kablam!     |
Aug 30 19:57:02.710 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 19:57:02.710 INFO kablam! 
Aug 30 19:57:02.710 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 19:57:02.710 INFO kablam!    --> src/lib.rs:118:5
Aug 30 19:57:02.710 INFO kablam!     |
Aug 30 19:57:02.710 INFO kablam! 118 |     ds.union(-1, 4);
Aug 30 19:57:02.710 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Aug 30 19:57:02.710 INFO kablam!     |
Aug 30 19:57:02.710 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 19:57:02.710 INFO kablam! 
Aug 30 19:57:02.710 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 19:57:02.710 INFO kablam!    --> src/lib.rs:119:5
Aug 30 19:57:02.710 INFO kablam!     |
Aug 30 19:57:02.710 INFO kablam! 119 |     ds.union(2, 4);
Aug 30 19:57:02.710 INFO kablam!     |     ^^^^^^^^^^^^^^^
Aug 30 19:57:02.710 INFO kablam!     |
Aug 30 19:57:02.710 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 19:57:02.710 INFO kablam! 
Aug 30 19:57:02.721 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
Aug 30 19:57:02.723 INFO kablam! su: No module specific data is present
Aug 30 19:57:03.334 INFO running `"docker" "rm" "-f" "1ef2d5ceb39ae6a26da7c4dccc9f3b6f894a70bbe7ff9f0ebdb7f0116ce33e5e"`
Aug 30 19:57:03.415 INFO blam! 1ef2d5ceb39ae6a26da7c4dccc9f3b6f894a70bbe7ff9f0ebdb7f0116ce33e5e