Jul 12 10:53:37.664 INFO checking disjoint-set-0.0.2 against master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9 for pr-52234
Jul 12 10:53:37.665 INFO running: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 12 10:53:37.665 INFO creating container for: cargo +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets
Jul 12 10:53:37.665 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-52234/master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-52234/worker-3/master#ae5b629efd79de78e6ba7ef493c32857bd7f9cf9:/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 +ae5b629efd79de78e6ba7ef493c32857bd7f9cf9-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "crater"`
Jul 12 10:53:37.922 INFO blam! f06d1d9e3e8e4913843cdcd0d5d0f02ac877f37b8dc6111b28f37f263616ee0e
Jul 12 10:53:37.925 INFO running `"docker" "start" "-a" "f06d1d9e3e8e4913843cdcd0d5d0f02ac877f37b8dc6111b28f37f263616ee0e"`
Jul 12 10:53:38.913 INFO kablam!     Checking disjoint-set v0.0.2 (file:///source)
Jul 12 10:53:39.942 INFO kablam! warning: unused import: `std::rc::Rc`
Jul 12 10:53:39.942 INFO kablam!  --> src/lib.rs:3:5
Jul 12 10:53:39.942 INFO kablam!   |
Jul 12 10:53:39.942 INFO kablam! 3 | use std::rc::Rc;
Jul 12 10:53:39.942 INFO kablam!   |     ^^^^^^^^^^^
Jul 12 10:53:39.942 INFO kablam!   |
Jul 12 10:53:39.942 INFO kablam!   = note: #[warn(unused_imports)] on by default
Jul 12 10:53:39.942 INFO kablam! 
Jul 12 10:53:40.046 INFO kablam! warning: unused variable: `p`
Jul 12 10:53:40.046 INFO kablam!   --> src/lib.rs:37:18
Jul 12 10:53:40.046 INFO kablam!    |
Jul 12 10:53:40.046 INFO kablam! 37 |             Some(p) => return,
Jul 12 10:53:40.046 INFO kablam!    |                  ^ help: consider using `_p` instead
Jul 12 10:53:40.046 INFO kablam!    |
Jul 12 10:53:40.046 INFO kablam!    = note: #[warn(unused_variables)] on by default
Jul 12 10:53:40.046 INFO kablam! 
Jul 12 10:53:40.049 INFO kablam! warning: variable does not need to be mutable
Jul 12 10:53:40.049 INFO kablam!   --> src/lib.rs:35:13
Jul 12 10:53:40.049 INFO kablam!    |
Jul 12 10:53:40.049 INFO kablam! 35 |         let mut len = &mut self.set_size;
Jul 12 10:53:40.049 INFO kablam!    |             ----^^^
Jul 12 10:53:40.049 INFO kablam!    |             |
Jul 12 10:53:40.049 INFO kablam!    |             help: remove this `mut`
Jul 12 10:53:40.049 INFO kablam!    |
Jul 12 10:53:40.049 INFO kablam!    = note: #[warn(unused_mut)] on by default
Jul 12 10:53:40.049 INFO kablam! 
Jul 12 10:53:40.051 INFO kablam! warning: variable does not need to be mutable
Jul 12 10:53:40.051 INFO kablam!   --> src/lib.rs:53:13
Jul 12 10:53:40.051 INFO kablam!    |
Jul 12 10:53:40.051 INFO kablam! 53 |         let mut pos: usize;
Jul 12 10:53:40.051 INFO kablam!    |             ----^^^
Jul 12 10:53:40.051 INFO kablam!    |             |
Jul 12 10:53:40.051 INFO kablam!    |             help: remove this `mut`
Jul 12 10:53:40.051 INFO kablam! 
Jul 12 10:53:40.055 INFO kablam! warning: variant is never constructed: `Root`
Jul 12 10:53:40.055 INFO kablam!  --> src/lib.rs:7:5
Jul 12 10:53:40.055 INFO kablam!   |
Jul 12 10:53:40.055 INFO kablam! 7 |     Root(ValueType, u32),
Jul 12 10:53:40.055 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Jul 12 10:53:40.055 INFO kablam!   |
Jul 12 10:53:40.055 INFO kablam!   = note: #[warn(dead_code)] on by default
Jul 12 10:53:40.055 INFO kablam! 
Jul 12 10:53:40.055 INFO kablam! warning: variant is never constructed: `Link`
Jul 12 10:53:40.055 INFO kablam!  --> src/lib.rs:8:5
Jul 12 10:53:40.055 INFO kablam!   |
Jul 12 10:53:40.055 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Jul 12 10:53:40.055 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jul 12 10:53:40.055 INFO kablam! 
Jul 12 10:53:40.165 INFO kablam! warning: unused import: `std::rc::Rc`
Jul 12 10:53:40.165 INFO kablam!  --> src/lib.rs:3:5
Jul 12 10:53:40.165 INFO kablam!   |
Jul 12 10:53:40.165 INFO kablam! 3 | use std::rc::Rc;
Jul 12 10:53:40.165 INFO kablam!   |     ^^^^^^^^^^^
Jul 12 10:53:40.165 INFO kablam!   |
Jul 12 10:53:40.165 INFO kablam!   = note: #[warn(unused_imports)] on by default
Jul 12 10:53:40.165 INFO kablam! 
Jul 12 10:53:40.323 INFO kablam! warning: unused variable: `p`
Jul 12 10:53:40.323 INFO kablam!   --> src/lib.rs:37:18
Jul 12 10:53:40.323 INFO kablam!    |
Jul 12 10:53:40.323 INFO kablam! 37 |             Some(p) => return,
Jul 12 10:53:40.323 INFO kablam!    |                  ^ help: consider using `_p` instead
Jul 12 10:53:40.323 INFO kablam!    |
Jul 12 10:53:40.323 INFO kablam!    = note: #[warn(unused_variables)] on by default
Jul 12 10:53:40.323 INFO kablam! 
Jul 12 10:53:40.337 INFO kablam! warning: variable does not need to be mutable
Jul 12 10:53:40.337 INFO kablam!   --> src/lib.rs:35:13
Jul 12 10:53:40.337 INFO kablam!    |
Jul 12 10:53:40.337 INFO kablam! 35 |         let mut len = &mut self.set_size;
Jul 12 10:53:40.337 INFO kablam!    |             ----^^^
Jul 12 10:53:40.337 INFO kablam!    |             |
Jul 12 10:53:40.338 INFO kablam!    |             help: remove this `mut`
Jul 12 10:53:40.338 INFO kablam!    |
Jul 12 10:53:40.338 INFO kablam!    = note: #[warn(unused_mut)] on by default
Jul 12 10:53:40.338 INFO kablam! 
Jul 12 10:53:40.338 INFO kablam! warning: variable does not need to be mutable
Jul 12 10:53:40.338 INFO kablam!   --> src/lib.rs:53:13
Jul 12 10:53:40.338 INFO kablam!    |
Jul 12 10:53:40.339 INFO kablam! 53 |         let mut pos: usize;
Jul 12 10:53:40.339 INFO kablam!    |             ----^^^
Jul 12 10:53:40.339 INFO kablam!    |             |
Jul 12 10:53:40.339 INFO kablam!    |             help: remove this `mut`
Jul 12 10:53:40.339 INFO kablam! 
Jul 12 10:53:40.346 INFO kablam! warning: variant is never constructed: `Root`
Jul 12 10:53:40.346 INFO kablam!  --> src/lib.rs:7:5
Jul 12 10:53:40.346 INFO kablam!   |
Jul 12 10:53:40.346 INFO kablam! 7 |     Root(ValueType, u32),
Jul 12 10:53:40.346 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Jul 12 10:53:40.346 INFO kablam!   |
Jul 12 10:53:40.346 INFO kablam!   = note: #[warn(dead_code)] on by default
Jul 12 10:53:40.346 INFO kablam! 
Jul 12 10:53:40.346 INFO kablam! warning: variant is never constructed: `Link`
Jul 12 10:53:40.346 INFO kablam!  --> src/lib.rs:8:5
Jul 12 10:53:40.347 INFO kablam!   |
Jul 12 10:53:40.347 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Jul 12 10:53:40.347 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jul 12 10:53:40.347 INFO kablam! 
Jul 12 10:53:40.370 INFO kablam! warning: unused `std::result::Result` which must be used
Jul 12 10:53:40.370 INFO kablam!    --> src/lib.rs:106:5
Jul 12 10:53:40.370 INFO kablam!     |
Jul 12 10:53:40.370 INFO kablam! 106 |     ds.union(1, 2);
Jul 12 10:53:40.370 INFO kablam!     |     ^^^^^^^^^^^^^^^
Jul 12 10:53:40.370 INFO kablam!     |
Jul 12 10:53:40.370 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Jul 12 10:53:40.370 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Jul 12 10:53:40.370 INFO kablam! 
Jul 12 10:53:40.371 INFO kablam! warning: unused `std::result::Result` which must be used
Jul 12 10:53:40.371 INFO kablam!    --> src/lib.rs:107:5
Jul 12 10:53:40.371 INFO kablam!     |
Jul 12 10:53:40.371 INFO kablam! 107 |     ds.union(2, 3);
Jul 12 10:53:40.371 INFO kablam!     |     ^^^^^^^^^^^^^^^
Jul 12 10:53:40.371 INFO kablam!     |
Jul 12 10:53:40.371 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Jul 12 10:53:40.371 INFO kablam! 
Jul 12 10:53:40.371 INFO kablam! warning: unused `std::result::Result` which must be used
Jul 12 10:53:40.371 INFO kablam!    --> src/lib.rs:118:5
Jul 12 10:53:40.371 INFO kablam!     |
Jul 12 10:53:40.371 INFO kablam! 118 |     ds.union(-1, 4);
Jul 12 10:53:40.371 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Jul 12 10:53:40.372 INFO kablam!     |
Jul 12 10:53:40.372 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Jul 12 10:53:40.372 INFO kablam! 
Jul 12 10:53:40.372 INFO kablam! warning: unused `std::result::Result` which must be used
Jul 12 10:53:40.372 INFO kablam!    --> src/lib.rs:119:5
Jul 12 10:53:40.372 INFO kablam!     |
Jul 12 10:53:40.372 INFO kablam! 119 |     ds.union(2, 4);
Jul 12 10:53:40.372 INFO kablam!     |     ^^^^^^^^^^^^^^^
Jul 12 10:53:40.372 INFO kablam!     |
Jul 12 10:53:40.372 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Jul 12 10:53:40.372 INFO kablam! 
Jul 12 10:53:40.407 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
Jul 12 10:53:40.410 INFO kablam! su: No module specific data is present
Jul 12 10:53:40.910 INFO running `"docker" "rm" "-f" "f06d1d9e3e8e4913843cdcd0d5d0f02ac877f37b8dc6111b28f37f263616ee0e"`
Jul 12 10:53:41.093 INFO blam! f06d1d9e3e8e4913843cdcd0d5d0f02ac877f37b8dc6111b28f37f263616ee0e