Oct 13 09:07:43.009 INFO checking rusty-santa-0.1.0 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 09:07:43.009 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-3/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 09:07:43.228 INFO blam! 5ecd73072583269fef03f1d88bb505e3f81934a3de54c8bc0ff223fae00644f5
Oct 13 09:07:43.232 INFO running `"docker" "start" "-a" "5ecd73072583269fef03f1d88bb505e3f81934a3de54c8bc0ff223fae00644f5"`
Oct 13 09:07:44.786 INFO kablam! usermod: no changes
Oct 13 09:07:44.956 INFO kablam!     Checking rusty-santa v0.1.0 (/source)
Oct 13 09:07:46.261 INFO kablam! warning: method is never used: `get`
Oct 13 09:07:46.261 INFO kablam!   --> src/lib.rs:64:5
Oct 13 09:07:46.261 INFO kablam!    |
Oct 13 09:07:46.261 INFO kablam! 64 |     pub fn get(&self, x: &str, y: &str) -> bool {
Oct 13 09:07:46.261 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 09:07:46.261 INFO kablam!    |
Oct 13 09:07:46.261 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 09:07:46.261 INFO kablam! 
Oct 13 09:07:46.261 INFO kablam! warning: method is never used: `size`
Oct 13 09:07:46.261 INFO kablam!    --> src/lib.rs:103:5
Oct 13 09:07:46.261 INFO kablam!     |
Oct 13 09:07:46.261 INFO kablam! 103 |     pub fn size(&self) -> usize {
Oct 13 09:07:46.261 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 09:07:46.261 INFO kablam! 
Oct 13 09:07:46.666 INFO kablam! warning: unused variable: `i`
Oct 13 09:07:46.666 INFO kablam!    --> src/lib.rs:357:13
Oct 13 09:07:46.667 INFO kablam!     |
Oct 13 09:07:46.667 INFO kablam! 357 |         for i in 0..1000 {
Oct 13 09:07:46.667 INFO kablam!     |             ^ help: consider using `_i` instead
Oct 13 09:07:46.667 INFO kablam!     |
Oct 13 09:07:46.667 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 13 09:07:46.667 INFO kablam! 
Oct 13 09:07:46.700 INFO kablam! warning: variable does not need to be mutable
Oct 13 09:07:46.700 INFO kablam!    --> src/lib.rs:279:13
Oct 13 09:07:46.700 INFO kablam!     |
Oct 13 09:07:46.700 INFO kablam! 279 |         let mut matrix = Matrix::new(keys);
Oct 13 09:07:46.700 INFO kablam!     |             ----^^^^^^
Oct 13 09:07:46.700 INFO kablam!     |             |
Oct 13 09:07:46.700 INFO kablam!     |             help: remove this `mut`
Oct 13 09:07:46.700 INFO kablam!     |
Oct 13 09:07:46.700 INFO kablam!     = note: #[warn(unused_mut)] on by default
Oct 13 09:07:46.700 INFO kablam! 
Oct 13 09:07:46.716 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 09:07:46.716 INFO kablam!    --> src/lib.rs:358:13
Oct 13 09:07:46.716 INFO kablam!     |
Oct 13 09:07:46.716 INFO kablam! 358 |             group.assign();
Oct 13 09:07:46.716 INFO kablam!     |             ^^^^^^^^^^^^^^^
Oct 13 09:07:46.716 INFO kablam!     |
Oct 13 09:07:46.716 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 13 09:07:46.716 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 09:07:46.716 INFO kablam! 
Oct 13 09:07:47.743 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.92s
Oct 13 09:07:47.750 INFO kablam! su: No module specific data is present
Oct 13 09:07:48.038 INFO running `"docker" "rm" "-f" "5ecd73072583269fef03f1d88bb505e3f81934a3de54c8bc0ff223fae00644f5"`
Oct 13 09:07:48.144 INFO blam! 5ecd73072583269fef03f1d88bb505e3f81934a3de54c8bc0ff223fae00644f5