Nov 05 00:42:48.164 INFO checking disjoint-set-0.0.2 against try#e740b9aa0b624fa39feb39613e76d15bdf57e594 for pr-55655
Nov 05 00:42:48.164 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55655/worker-0/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55655/try#e740b9aa0b624fa39feb39613e76d15bdf57e594:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +e740b9aa0b624fa39feb39613e76d15bdf57e594-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 05 00:42:48.664 INFO blam! 798cf32595948bfed4d80fc0200985fcbe15567e280f5dcd4d0bd5564ea46d06
Nov 05 00:42:48.671 INFO running `"docker" "start" "-a" "798cf32595948bfed4d80fc0200985fcbe15567e280f5dcd4d0bd5564ea46d06"`
Nov 05 00:42:49.856 INFO kablam! usermod: no changes
Nov 05 00:42:49.927 INFO kablam!     Checking disjoint-set v0.0.2 (/source)
Nov 05 00:42:50.615 INFO kablam! warning: unused import: `std::rc::Rc`
Nov 05 00:42:50.615 INFO kablam!  --> src/lib.rs:3:5
Nov 05 00:42:50.616 INFO kablam!   |
Nov 05 00:42:50.616 INFO kablam! 3 | use std::rc::Rc;
Nov 05 00:42:50.616 INFO kablam!   |     ^^^^^^^^^^^
Nov 05 00:42:50.616 INFO kablam!   |
Nov 05 00:42:50.617 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 05 00:42:50.617 INFO kablam! 
Nov 05 00:42:50.651 INFO kablam! warning: unused variable: `p`
Nov 05 00:42:50.651 INFO kablam!   --> src/lib.rs:37:18
Nov 05 00:42:50.652 INFO kablam!    |
Nov 05 00:42:50.652 INFO kablam! 37 |             Some(p) => return,
Nov 05 00:42:50.652 INFO kablam!    |                  ^ help: consider using `_p` instead
Nov 05 00:42:50.652 INFO kablam!    |
Nov 05 00:42:50.653 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 05 00:42:50.653 INFO kablam! 
Nov 05 00:42:50.653 INFO kablam! warning: variable does not need to be mutable
Nov 05 00:42:50.654 INFO kablam!   --> src/lib.rs:35:13
Nov 05 00:42:50.654 INFO kablam!    |
Nov 05 00:42:50.654 INFO kablam! 35 |         let mut len = &mut self.set_size;
Nov 05 00:42:50.654 INFO kablam!    |             ----^^^
Nov 05 00:42:50.655 INFO kablam!    |             |
Nov 05 00:42:50.655 INFO kablam!    |             help: remove this `mut`
Nov 05 00:42:50.655 INFO kablam!    |
Nov 05 00:42:50.655 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 05 00:42:50.656 INFO kablam! 
Nov 05 00:42:50.656 INFO kablam! warning: variable does not need to be mutable
Nov 05 00:42:50.656 INFO kablam!   --> src/lib.rs:53:13
Nov 05 00:42:50.656 INFO kablam!    |
Nov 05 00:42:50.657 INFO kablam! 53 |         let mut pos: usize;
Nov 05 00:42:50.657 INFO kablam!    |             ----^^^
Nov 05 00:42:50.657 INFO kablam!    |             |
Nov 05 00:42:50.657 INFO kablam!    |             help: remove this `mut`
Nov 05 00:42:50.658 INFO kablam! 
Nov 05 00:42:50.658 INFO kablam! warning: variant is never constructed: `Root`
Nov 05 00:42:50.658 INFO kablam!  --> src/lib.rs:7:5
Nov 05 00:42:50.659 INFO kablam!   |
Nov 05 00:42:50.659 INFO kablam! 7 |     Root(ValueType, u32),
Nov 05 00:42:50.659 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Nov 05 00:42:50.659 INFO kablam!   |
Nov 05 00:42:50.660 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 05 00:42:50.660 INFO kablam! 
Nov 05 00:42:50.660 INFO kablam! warning: variant is never constructed: `Link`
Nov 05 00:42:50.660 INFO kablam!  --> src/lib.rs:8:5
Nov 05 00:42:50.661 INFO kablam!   |
Nov 05 00:42:50.661 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Nov 05 00:42:50.661 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 05 00:42:50.661 INFO kablam! 
Nov 05 00:42:50.855 INFO kablam! warning: unused import: `std::rc::Rc`
Nov 05 00:42:50.855 INFO kablam!  --> src/lib.rs:3:5
Nov 05 00:42:50.855 INFO kablam!   |
Nov 05 00:42:50.855 INFO kablam! 3 | use std::rc::Rc;
Nov 05 00:42:50.855 INFO kablam!   |     ^^^^^^^^^^^
Nov 05 00:42:50.855 INFO kablam!   |
Nov 05 00:42:50.855 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 05 00:42:50.855 INFO kablam! 
Nov 05 00:42:50.895 INFO kablam! warning: unused variable: `p`
Nov 05 00:42:50.895 INFO kablam!   --> src/lib.rs:37:18
Nov 05 00:42:50.895 INFO kablam!    |
Nov 05 00:42:50.895 INFO kablam! 37 |             Some(p) => return,
Nov 05 00:42:50.895 INFO kablam!    |                  ^ help: consider using `_p` instead
Nov 05 00:42:50.895 INFO kablam!    |
Nov 05 00:42:50.895 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 05 00:42:50.895 INFO kablam! 
Nov 05 00:42:50.899 INFO kablam! warning: variable does not need to be mutable
Nov 05 00:42:50.899 INFO kablam!   --> src/lib.rs:35:13
Nov 05 00:42:50.899 INFO kablam!    |
Nov 05 00:42:50.899 INFO kablam! 35 |         let mut len = &mut self.set_size;
Nov 05 00:42:50.899 INFO kablam!    |             ----^^^
Nov 05 00:42:50.899 INFO kablam!    |             |
Nov 05 00:42:50.899 INFO kablam!    |             help: remove this `mut`
Nov 05 00:42:50.899 INFO kablam!    |
Nov 05 00:42:50.899 INFO kablam!    = note: #[warn(unused_mut)] on by default
Nov 05 00:42:50.899 INFO kablam! 
Nov 05 00:42:50.899 INFO kablam! warning: variable does not need to be mutable
Nov 05 00:42:50.899 INFO kablam!   --> src/lib.rs:53:13
Nov 05 00:42:50.899 INFO kablam!    |
Nov 05 00:42:50.899 INFO kablam! 53 |         let mut pos: usize;
Nov 05 00:42:50.899 INFO kablam!    |             ----^^^
Nov 05 00:42:50.899 INFO kablam!    |             |
Nov 05 00:42:50.899 INFO kablam!    |             help: remove this `mut`
Nov 05 00:42:50.899 INFO kablam! 
Nov 05 00:42:50.907 INFO kablam! warning: variant is never constructed: `Root`
Nov 05 00:42:50.907 INFO kablam!  --> src/lib.rs:7:5
Nov 05 00:42:50.907 INFO kablam!   |
Nov 05 00:42:50.907 INFO kablam! 7 |     Root(ValueType, u32),
Nov 05 00:42:50.907 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^
Nov 05 00:42:50.907 INFO kablam!   |
Nov 05 00:42:50.907 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 05 00:42:50.907 INFO kablam! 
Nov 05 00:42:50.907 INFO kablam! warning: variant is never constructed: `Link`
Nov 05 00:42:50.907 INFO kablam!  --> src/lib.rs:8:5
Nov 05 00:42:50.907 INFO kablam!   |
Nov 05 00:42:50.907 INFO kablam! 8 |     Link(Box<SetItem<ValueType>>)
Nov 05 00:42:50.907 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 05 00:42:50.907 INFO kablam! 
Nov 05 00:42:50.918 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 05 00:42:50.918 INFO kablam!    --> src/lib.rs:106:5
Nov 05 00:42:50.918 INFO kablam!     |
Nov 05 00:42:50.918 INFO kablam! 106 |     ds.union(1, 2);
Nov 05 00:42:50.918 INFO kablam!     |     ^^^^^^^^^^^^^^^
Nov 05 00:42:50.918 INFO kablam!     |
Nov 05 00:42:50.918 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Nov 05 00:42:50.918 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 05 00:42:50.918 INFO kablam! 
Nov 05 00:42:50.918 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 05 00:42:50.918 INFO kablam!    --> src/lib.rs:107:5
Nov 05 00:42:50.918 INFO kablam!     |
Nov 05 00:42:50.918 INFO kablam! 107 |     ds.union(2, 3);
Nov 05 00:42:50.918 INFO kablam!     |     ^^^^^^^^^^^^^^^
Nov 05 00:42:50.918 INFO kablam!     |
Nov 05 00:42:50.919 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 05 00:42:50.919 INFO kablam! 
Nov 05 00:42:50.919 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 05 00:42:50.919 INFO kablam!    --> src/lib.rs:118:5
Nov 05 00:42:50.919 INFO kablam!     |
Nov 05 00:42:50.919 INFO kablam! 118 |     ds.union(-1, 4);
Nov 05 00:42:50.919 INFO kablam!     |     ^^^^^^^^^^^^^^^^
Nov 05 00:42:50.919 INFO kablam!     |
Nov 05 00:42:50.919 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 05 00:42:50.919 INFO kablam! 
Nov 05 00:42:50.919 INFO kablam! warning: unused `std::result::Result` that must be used
Nov 05 00:42:50.919 INFO kablam!    --> src/lib.rs:119:5
Nov 05 00:42:50.919 INFO kablam!     |
Nov 05 00:42:50.919 INFO kablam! 119 |     ds.union(2, 4);
Nov 05 00:42:50.919 INFO kablam!     |     ^^^^^^^^^^^^^^^
Nov 05 00:42:50.919 INFO kablam!     |
Nov 05 00:42:50.919 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Nov 05 00:42:50.919 INFO kablam! 
Nov 05 00:42:50.953 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
Nov 05 00:42:50.965 INFO kablam! su: No module specific data is present
Nov 05 00:42:51.549 INFO running `"docker" "rm" "-f" "798cf32595948bfed4d80fc0200985fcbe15567e280f5dcd4d0bd5564ea46d06"`
Nov 05 00:42:51.875 INFO blam! 798cf32595948bfed4d80fc0200985fcbe15567e280f5dcd4d0bd5564ea46d06