Sep 18 01:37:14.380 INFO checking disjoint-set-0.0.2 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033 Sep 18 01:37:14.380 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets Sep 18 01:37:14.380 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-0/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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 +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"` Sep 18 01:37:14.696 INFO blam! cad1f093b47079c7fb1f23e27fbc69215063e05a7adabace8ef7ff1a97829524 Sep 18 01:37:14.699 INFO running `"docker" "start" "-a" "cad1f093b47079c7fb1f23e27fbc69215063e05a7adabace8ef7ff1a97829524"` Sep 18 01:37:16.178 INFO kablam! usermod: no changes Sep 18 01:37:16.263 INFO kablam! Checking disjoint-set v0.0.2 (/source) Sep 18 01:37:16.932 INFO kablam! warning: unused import: `std::rc::Rc` Sep 18 01:37:16.932 INFO kablam! --> src/lib.rs:3:5 Sep 18 01:37:16.932 INFO kablam! | Sep 18 01:37:16.932 INFO kablam! 3 | use std::rc::Rc; Sep 18 01:37:16.932 INFO kablam! | ^^^^^^^^^^^ Sep 18 01:37:16.932 INFO kablam! | Sep 18 01:37:16.932 INFO kablam! = note: #[warn(unused_imports)] on by default Sep 18 01:37:16.932 INFO kablam! Sep 18 01:37:16.987 INFO kablam! warning: unused import: `std::rc::Rc` Sep 18 01:37:16.987 INFO kablam! --> src/lib.rs:3:5 Sep 18 01:37:16.987 INFO kablam! | Sep 18 01:37:16.987 INFO kablam! 3 | use std::rc::Rc; Sep 18 01:37:16.987 INFO kablam! | ^^^^^^^^^^^ Sep 18 01:37:16.987 INFO kablam! | Sep 18 01:37:16.987 INFO kablam! = note: #[warn(unused_imports)] on by default Sep 18 01:37:16.987 INFO kablam! Sep 18 01:37:16.987 INFO kablam! warning: unused variable: `p` Sep 18 01:37:16.987 INFO kablam! --> src/lib.rs:37:18 Sep 18 01:37:16.987 INFO kablam! | Sep 18 01:37:16.987 INFO kablam! 37 | Some(p) => return, Sep 18 01:37:16.987 INFO kablam! | ^ help: consider using `_p` instead Sep 18 01:37:16.987 INFO kablam! | Sep 18 01:37:16.987 INFO kablam! = note: #[warn(unused_variables)] on by default Sep 18 01:37:16.987 INFO kablam! Sep 18 01:37:16.991 INFO kablam! warning: variable does not need to be mutable Sep 18 01:37:16.991 INFO kablam! --> src/lib.rs:35:13 Sep 18 01:37:16.991 INFO kablam! | Sep 18 01:37:16.991 INFO kablam! 35 | let mut len = &mut self.set_size; Sep 18 01:37:16.991 INFO kablam! | ----^^^ Sep 18 01:37:16.991 INFO kablam! | | Sep 18 01:37:16.991 INFO kablam! | help: remove this `mut` Sep 18 01:37:16.991 INFO kablam! | Sep 18 01:37:16.991 INFO kablam! = note: #[warn(unused_mut)] on by default Sep 18 01:37:16.991 INFO kablam! Sep 18 01:37:16.991 INFO kablam! warning: variable does not need to be mutable Sep 18 01:37:16.991 INFO kablam! --> src/lib.rs:53:13 Sep 18 01:37:16.991 INFO kablam! | Sep 18 01:37:16.991 INFO kablam! 53 | let mut pos: usize; Sep 18 01:37:16.991 INFO kablam! | ----^^^ Sep 18 01:37:16.991 INFO kablam! | | Sep 18 01:37:16.991 INFO kablam! | help: remove this `mut` Sep 18 01:37:16.991 INFO kablam! Sep 18 01:37:16.991 INFO kablam! warning: variant is never constructed: `Root` Sep 18 01:37:16.991 INFO kablam! --> src/lib.rs:7:5 Sep 18 01:37:16.991 INFO kablam! | Sep 18 01:37:16.991 INFO kablam! 7 | Root(ValueType, u32), Sep 18 01:37:16.991 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^ Sep 18 01:37:16.991 INFO kablam! | Sep 18 01:37:16.991 INFO kablam! = note: #[warn(dead_code)] on by default Sep 18 01:37:16.991 INFO kablam! Sep 18 01:37:16.991 INFO kablam! warning: variant is never constructed: `Link` Sep 18 01:37:16.991 INFO kablam! --> src/lib.rs:8:5 Sep 18 01:37:16.991 INFO kablam! | Sep 18 01:37:16.991 INFO kablam! 8 | Link(Box>) Sep 18 01:37:16.991 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Sep 18 01:37:16.991 INFO kablam! Sep 18 01:37:17.043 INFO kablam! warning: unused variable: `p` Sep 18 01:37:17.043 INFO kablam! --> src/lib.rs:37:18 Sep 18 01:37:17.043 INFO kablam! | Sep 18 01:37:17.043 INFO kablam! 37 | Some(p) => return, Sep 18 01:37:17.043 INFO kablam! | ^ help: consider using `_p` instead Sep 18 01:37:17.043 INFO kablam! | Sep 18 01:37:17.043 INFO kablam! = note: #[warn(unused_variables)] on by default Sep 18 01:37:17.043 INFO kablam! Sep 18 01:37:17.048 INFO kablam! warning: variable does not need to be mutable Sep 18 01:37:17.048 INFO kablam! --> src/lib.rs:35:13 Sep 18 01:37:17.048 INFO kablam! | Sep 18 01:37:17.048 INFO kablam! 35 | let mut len = &mut self.set_size; Sep 18 01:37:17.048 INFO kablam! | ----^^^ Sep 18 01:37:17.048 INFO kablam! | | Sep 18 01:37:17.048 INFO kablam! | help: remove this `mut` Sep 18 01:37:17.048 INFO kablam! | Sep 18 01:37:17.048 INFO kablam! = note: #[warn(unused_mut)] on by default Sep 18 01:37:17.048 INFO kablam! Sep 18 01:37:17.048 INFO kablam! warning: variable does not need to be mutable Sep 18 01:37:17.048 INFO kablam! --> src/lib.rs:53:13 Sep 18 01:37:17.048 INFO kablam! | Sep 18 01:37:17.048 INFO kablam! 53 | let mut pos: usize; Sep 18 01:37:17.048 INFO kablam! | ----^^^ Sep 18 01:37:17.048 INFO kablam! | | Sep 18 01:37:17.048 INFO kablam! | help: remove this `mut` Sep 18 01:37:17.048 INFO kablam! Sep 18 01:37:17.055 INFO kablam! warning: variant is never constructed: `Root` Sep 18 01:37:17.055 INFO kablam! --> src/lib.rs:7:5 Sep 18 01:37:17.055 INFO kablam! | Sep 18 01:37:17.055 INFO kablam! 7 | Root(ValueType, u32), Sep 18 01:37:17.055 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^ Sep 18 01:37:17.055 INFO kablam! | Sep 18 01:37:17.055 INFO kablam! = note: #[warn(dead_code)] on by default Sep 18 01:37:17.055 INFO kablam! Sep 18 01:37:17.055 INFO kablam! warning: variant is never constructed: `Link` Sep 18 01:37:17.055 INFO kablam! --> src/lib.rs:8:5 Sep 18 01:37:17.055 INFO kablam! | Sep 18 01:37:17.055 INFO kablam! 8 | Link(Box>) Sep 18 01:37:17.055 INFO kablam! | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Sep 18 01:37:17.055 INFO kablam! Sep 18 01:37:17.071 INFO kablam! warning: unused `std::result::Result` which must be used Sep 18 01:37:17.071 INFO kablam! --> src/lib.rs:106:5 Sep 18 01:37:17.071 INFO kablam! | Sep 18 01:37:17.071 INFO kablam! 106 | ds.union(1, 2); Sep 18 01:37:17.071 INFO kablam! | ^^^^^^^^^^^^^^^ Sep 18 01:37:17.071 INFO kablam! | Sep 18 01:37:17.071 INFO kablam! = note: #[warn(unused_must_use)] on by default Sep 18 01:37:17.071 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Sep 18 01:37:17.071 INFO kablam! Sep 18 01:37:17.071 INFO kablam! warning: unused `std::result::Result` which must be used Sep 18 01:37:17.071 INFO kablam! --> src/lib.rs:107:5 Sep 18 01:37:17.071 INFO kablam! | Sep 18 01:37:17.071 INFO kablam! 107 | ds.union(2, 3); Sep 18 01:37:17.071 INFO kablam! | ^^^^^^^^^^^^^^^ Sep 18 01:37:17.071 INFO kablam! | Sep 18 01:37:17.071 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Sep 18 01:37:17.071 INFO kablam! Sep 18 01:37:17.071 INFO kablam! warning: unused `std::result::Result` which must be used Sep 18 01:37:17.071 INFO kablam! --> src/lib.rs:118:5 Sep 18 01:37:17.071 INFO kablam! | Sep 18 01:37:17.071 INFO kablam! 118 | ds.union(-1, 4); Sep 18 01:37:17.071 INFO kablam! | ^^^^^^^^^^^^^^^^ Sep 18 01:37:17.071 INFO kablam! | Sep 18 01:37:17.071 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Sep 18 01:37:17.071 INFO kablam! Sep 18 01:37:17.071 INFO kablam! warning: unused `std::result::Result` which must be used Sep 18 01:37:17.071 INFO kablam! --> src/lib.rs:119:5 Sep 18 01:37:17.071 INFO kablam! | Sep 18 01:37:17.071 INFO kablam! 119 | ds.union(2, 4); Sep 18 01:37:17.071 INFO kablam! | ^^^^^^^^^^^^^^^ Sep 18 01:37:17.071 INFO kablam! | Sep 18 01:37:17.071 INFO kablam! = note: this `Result` may be an `Err` variant, which should be handled Sep 18 01:37:17.071 INFO kablam! Sep 18 01:37:17.108 INFO kablam! Finished dev [unoptimized + debuginfo] target(s) in 0.89s Sep 18 01:37:17.115 INFO kablam! su: No module specific data is present Sep 18 01:37:17.925 INFO running `"docker" "rm" "-f" "cad1f093b47079c7fb1f23e27fbc69215063e05a7adabace8ef7ff1a97829524"` Sep 18 01:37:18.016 INFO blam! cad1f093b47079c7fb1f23e27fbc69215063e05a7adabace8ef7ff1a97829524