Sep 20 02:44:50.280 INFO checking disjoint-set-0.0.2 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 20 02:44:50.280 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 20 02:44:50.280 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-3/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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=1000" "-e" "CMD=cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 02:44:50.682 INFO blam! 20bd6ee150f009f379a5862a2f628f2c440ef76d1ba37839600b1f58c06309be
Sep 20 02:44:50.685 INFO running `"docker" "start" "-a" "20bd6ee150f009f379a5862a2f628f2c440ef76d1ba37839600b1f58c06309be"`
Sep 20 02:44:52.385 INFO kablam! usermod: no changes
Sep 20 02:44:52.413 INFO kablam!     Checking disjoint-set v0.0.2 (/source)
Sep 20 02:44:52.698 INFO kablam! warning: unused import: `std::rc::Rc`
Sep 20 02:44:52.698 INFO kablam!  --> src/lib.rs:3:5
Sep 20 02:44:52.698 INFO kablam!   |
Sep 20 02:44:52.698 INFO kablam! 3 | use std::rc::Rc;
Sep 20 02:44:52.698 INFO kablam!   |     ^^^^^^^^^^^
Sep 20 02:44:52.698 INFO kablam!   |
Sep 20 02:44:52.698 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 20 02:44:52.698 INFO kablam! 
Sep 20 02:44:52.747 INFO kablam! warning: unused variable: `p`
Sep 20 02:44:52.747 INFO kablam!   --> src/lib.rs:37:18
Sep 20 02:44:52.747 INFO kablam!    |
Sep 20 02:44:52.747 INFO kablam! 37 |             Some(p) => return,
Sep 20 02:44:52.747 INFO kablam!    |                  ^ help: consider using `_p` instead
Sep 20 02:44:52.747 INFO kablam!    |
Sep 20 02:44:52.747 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 20 02:44:52.747 INFO kablam! 
Sep 20 02:44:52.747 INFO kablam! warning: variable does not need to be mutable
Sep 20 02:44:52.747 INFO kablam!   --> src/lib.rs:35:13
Sep 20 02:44:52.747 INFO kablam!    |
Sep 20 02:44:52.747 INFO kablam! 35 |         let mut len = &mut self.set_size;
Sep 20 02:44:52.747 INFO kablam!    |             ----^^^
Sep 20 02:44:52.747 INFO kablam!    |             |
Sep 20 02:44:52.747 INFO kablam!    |             help: remove this `mut`
Sep 20 02:44:52.747 INFO kablam!    |
Sep 20 02:44:52.747 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 20 02:44:52.747 INFO kablam! 
Sep 20 02:44:52.747 INFO kablam! warning: variable does not need to be mutable
Sep 20 02:44:52.747 INFO kablam!   --> src/lib.rs:53:13
Sep 20 02:44:52.747 INFO kablam!    |
Sep 20 02:44:52.747 INFO kablam! 53 |         let mut pos: usize;
Sep 20 02:44:52.747 INFO kablam!    |             ----^^^
Sep 20 02:44:52.747 INFO kablam!    |             |
Sep 20 02:44:52.747 INFO kablam!    |             help: remove this `mut`
Sep 20 02:44:52.747 INFO kablam! 
Sep 20 02:44:52.747 INFO kablam! warning: variant is never constructed: `Root`
Sep 20 02:44:52.747 INFO kablam!  --> src/lib.rs:7:5
Sep 20 02:44:52.747 INFO kablam!   |
Sep 20 02:44:52.747 INFO kablam! 7 |     Root(ValueType, u32),
Sep 20 02:44:52.747 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 20 02:44:52.747 INFO kablam!   |
Sep 20 02:44:52.747 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 20 02:44:52.747 INFO kablam! 
Sep 20 02:44:52.747 INFO kablam! warning: variant is never constructed: `Link`
Sep 20 02:44:52.747 INFO kablam!  --> src/lib.rs:8:5
Sep 20 02:44:52.748 INFO kablam!   |
Sep 20 02:44:52.748 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Sep 20 02:44:52.748 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 02:44:52.748 INFO kablam! 
Sep 20 02:44:52.755 INFO kablam! warning: unused import: `std::rc::Rc`
Sep 20 02:44:52.755 INFO kablam!  --> src/lib.rs:3:5
Sep 20 02:44:52.755 INFO kablam!   |
Sep 20 02:44:52.755 INFO kablam! 3 | use std::rc::Rc;
Sep 20 02:44:52.755 INFO kablam!   |     ^^^^^^^^^^^
Sep 20 02:44:52.755 INFO kablam!   |
Sep 20 02:44:52.756 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 20 02:44:52.756 INFO kablam! 
Sep 20 02:44:52.811 INFO kablam! warning: unused variable: `p`
Sep 20 02:44:52.811 INFO kablam!   --> src/lib.rs:37:18
Sep 20 02:44:52.811 INFO kablam!    |
Sep 20 02:44:52.811 INFO kablam! 37 |             Some(p) => return,
Sep 20 02:44:52.811 INFO kablam!    |                  ^ help: consider using `_p` instead
Sep 20 02:44:52.811 INFO kablam!    |
Sep 20 02:44:52.811 INFO kablam!    = note: #[warn(unused_variables)] on by default
Sep 20 02:44:52.811 INFO kablam! 
Sep 20 02:44:52.811 INFO kablam! warning: variable does not need to be mutable
Sep 20 02:44:52.811 INFO kablam!   --> src/lib.rs:35:13
Sep 20 02:44:52.811 INFO kablam!    |
Sep 20 02:44:52.811 INFO kablam! 35 |         let mut len = &mut self.set_size;
Sep 20 02:44:52.811 INFO kablam!    |             ----^^^
Sep 20 02:44:52.811 INFO kablam!    |             |
Sep 20 02:44:52.811 INFO kablam!    |             help: remove this `mut`
Sep 20 02:44:52.811 INFO kablam!    |
Sep 20 02:44:52.811 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 20 02:44:52.811 INFO kablam! 
Sep 20 02:44:52.811 INFO kablam! warning: variable does not need to be mutable
Sep 20 02:44:52.811 INFO kablam!   --> src/lib.rs:53:13
Sep 20 02:44:52.811 INFO kablam!    |
Sep 20 02:44:52.811 INFO kablam! 53 |         let mut pos: usize;
Sep 20 02:44:52.811 INFO kablam!    |             ----^^^
Sep 20 02:44:52.811 INFO kablam!    |             |
Sep 20 02:44:52.811 INFO kablam!    |             help: remove this `mut`
Sep 20 02:44:52.811 INFO kablam! 
Sep 20 02:44:52.811 INFO kablam! warning: variant is never constructed: `Root`
Sep 20 02:44:52.811 INFO kablam!  --> src/lib.rs:7:5
Sep 20 02:44:52.811 INFO kablam!   |
Sep 20 02:44:52.811 INFO kablam! 7 |     Root(ValueType, u32),
Sep 20 02:44:52.811 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Sep 20 02:44:52.811 INFO kablam!   |
Sep 20 02:44:52.811 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 20 02:44:52.811 INFO kablam! 
Sep 20 02:44:52.811 INFO kablam! warning: variant is never constructed: `Link`
Sep 20 02:44:52.811 INFO kablam!  --> src/lib.rs:8:5
Sep 20 02:44:52.811 INFO kablam!   |
Sep 20 02:44:52.811 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Sep 20 02:44:52.811 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 20 02:44:52.811 INFO kablam! 
Sep 20 02:44:52.828 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 20 02:44:52.828 INFO kablam!    --> src/lib.rs:106:5
Sep 20 02:44:52.828 INFO kablam!     |
Sep 20 02:44:52.828 INFO kablam! 106 |     ds.union(1, 2);
Sep 20 02:44:52.828 INFO kablam!     |     ^^^^^^^^^^^^^^^
Sep 20 02:44:52.828 INFO kablam!     |
Sep 20 02:44:52.828 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 20 02:44:52.828 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 20 02:44:52.828 INFO kablam! 
Sep 20 02:44:52.828 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 20 02:44:52.828 INFO kablam!    --> src/lib.rs:107:5
Sep 20 02:44:52.828 INFO kablam!     |
Sep 20 02:44:52.828 INFO kablam! 107 |     ds.union(2, 3);
Sep 20 02:44:52.828 INFO kablam!     |     ^^^^^^^^^^^^^^^
Sep 20 02:44:52.828 INFO kablam!     |
Sep 20 02:44:52.828 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 20 02:44:52.828 INFO kablam! 
Sep 20 02:44:52.828 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 20 02:44:52.828 INFO kablam!    --> src/lib.rs:118:5
Sep 20 02:44:52.828 INFO kablam!     |
Sep 20 02:44:52.828 INFO kablam! 118 |     ds.union(-1, 4);
Sep 20 02:44:52.828 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Sep 20 02:44:52.828 INFO kablam!     |
Sep 20 02:44:52.828 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 20 02:44:52.828 INFO kablam! 
Sep 20 02:44:52.828 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 20 02:44:52.828 INFO kablam!    --> src/lib.rs:119:5
Sep 20 02:44:52.828 INFO kablam!     |
Sep 20 02:44:52.828 INFO kablam! 119 |     ds.union(2, 4);
Sep 20 02:44:52.828 INFO kablam!     |     ^^^^^^^^^^^^^^^
Sep 20 02:44:52.828 INFO kablam!     |
Sep 20 02:44:52.828 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 20 02:44:52.828 INFO kablam! 
Sep 20 02:44:52.855 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
Sep 20 02:44:52.856 INFO kablam! su: No module specific data is present
Sep 20 02:44:53.528 INFO running `"docker" "rm" "-f" "20bd6ee150f009f379a5862a2f628f2c440ef76d1ba37839600b1f58c06309be"`
Sep 20 02:44:53.601 INFO blam! 20bd6ee150f009f379a5862a2f628f2c440ef76d1ba37839600b1f58c06309be