Nov 29 04:19:32.448 INFO checking balloon-0.0.1 against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 29 04:19:32.448 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-3/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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 29 04:19:32.670 INFO [stdout] d9b1240224b67847f7b2b3fd3220c8a0b28f6dfba6e6c665f0404a8d9a7afda2
Nov 29 04:19:32.672 INFO running `"docker" "start" "-a" "d9b1240224b67847f7b2b3fd3220c8a0b28f6dfba6e6c665f0404a8d9a7afda2"`
Nov 29 04:19:33.188 INFO [stderr] usermod: no changes
Nov 29 04:19:33.256 INFO [stderr]     Checking subtle v0.7.1
Nov 29 04:19:33.794 INFO [stderr]     Checking balloon v0.0.1 (/source)
Nov 29 04:19:35.012 INFO [stderr] warning: method is never used: `get`
Nov 29 04:19:35.012 INFO [stderr]   --> src/buffer.rs:51:5
Nov 29 04:19:35.012 INFO [stderr]    |
Nov 29 04:19:35.012 INFO [stderr] 51 |     pub fn get(&self, index: usize) -> Option<&T> { self.back.get(index) }
Nov 29 04:19:35.012 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 04:19:35.012 INFO [stderr]    |
Nov 29 04:19:35.012 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 04:19:35.012 INFO [stderr] 
Nov 29 04:19:35.012 INFO [stderr] warning: method is never used: `get_mut`
Nov 29 04:19:35.012 INFO [stderr]   --> src/buffer.rs:54:5
Nov 29 04:19:35.012 INFO [stderr]    |
Nov 29 04:19:35.012 INFO [stderr] 54 |     pub fn get_mut(&mut self, index: usize) -> Option<&mut T> { self.back.get_mut(index) }
Nov 29 04:19:35.012 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 04:19:35.012 INFO [stderr] 
Nov 29 04:19:35.012 INFO [stderr] warning: method is never used: `clear`
Nov 29 04:19:35.012 INFO [stderr]   --> src/buffer.rs:57:5
Nov 29 04:19:35.012 INFO [stderr]    |
Nov 29 04:19:35.012 INFO [stderr] 57 |     pub fn clear(&mut self) { self.back.clear() }
Nov 29 04:19:35.012 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 04:19:35.012 INFO [stderr] 
Nov 29 04:19:35.012 INFO [stderr] warning: method is never used: `is_empty`
Nov 29 04:19:35.012 INFO [stderr]   --> src/buffer.rs:58:5
Nov 29 04:19:35.012 INFO [stderr]    |
Nov 29 04:19:35.012 INFO [stderr] 58 |     pub fn is_empty(&self) -> bool { self.back.is_empty() }
Nov 29 04:19:35.012 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 04:19:35.012 INFO [stderr] 
Nov 29 04:19:35.012 INFO [stderr] warning: method is never used: `len`
Nov 29 04:19:35.012 INFO [stderr]   --> src/buffer.rs:59:5
Nov 29 04:19:35.012 INFO [stderr]    |
Nov 29 04:19:35.012 INFO [stderr] 59 |     pub fn len(&self) -> usize { self.back.len() }
Nov 29 04:19:35.012 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 04:19:35.012 INFO [stderr] 
Nov 29 04:19:35.236 INFO [stderr] warning: method is never used: `get`
Nov 29 04:19:35.236 INFO [stderr]   --> src/buffer.rs:51:5
Nov 29 04:19:35.236 INFO [stderr]    |
Nov 29 04:19:35.236 INFO [stderr] 51 |     pub fn get(&self, index: usize) -> Option<&T> { self.back.get(index) }
Nov 29 04:19:35.236 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 04:19:35.236 INFO [stderr]    |
Nov 29 04:19:35.236 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 04:19:35.236 INFO [stderr] 
Nov 29 04:19:35.236 INFO [stderr] warning: method is never used: `get_mut`
Nov 29 04:19:35.236 INFO [stderr]   --> src/buffer.rs:54:5
Nov 29 04:19:35.236 INFO [stderr]    |
Nov 29 04:19:35.236 INFO [stderr] 54 |     pub fn get_mut(&mut self, index: usize) -> Option<&mut T> { self.back.get_mut(index) }
Nov 29 04:19:35.236 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 04:19:35.236 INFO [stderr] 
Nov 29 04:19:35.236 INFO [stderr] warning: method is never used: `clear`
Nov 29 04:19:35.236 INFO [stderr]   --> src/buffer.rs:57:5
Nov 29 04:19:35.236 INFO [stderr]    |
Nov 29 04:19:35.236 INFO [stderr] 57 |     pub fn clear(&mut self) { self.back.clear() }
Nov 29 04:19:35.236 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 04:19:35.236 INFO [stderr] 
Nov 29 04:19:35.236 INFO [stderr] warning: method is never used: `is_empty`
Nov 29 04:19:35.236 INFO [stderr]   --> src/buffer.rs:58:5
Nov 29 04:19:35.236 INFO [stderr]    |
Nov 29 04:19:35.236 INFO [stderr] 58 |     pub fn is_empty(&self) -> bool { self.back.is_empty() }
Nov 29 04:19:35.236 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 04:19:35.236 INFO [stderr] 
Nov 29 04:19:35.236 INFO [stderr] warning: method is never used: `len`
Nov 29 04:19:35.236 INFO [stderr]   --> src/buffer.rs:59:5
Nov 29 04:19:35.236 INFO [stderr]    |
Nov 29 04:19:35.236 INFO [stderr] 59 |     pub fn len(&self) -> usize { self.back.len() }
Nov 29 04:19:35.236 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 04:19:35.236 INFO [stderr] 
Nov 29 04:19:35.256 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.05s
Nov 29 04:19:35.269 INFO [stderr] su: No module specific data is present
Nov 29 04:19:36.382 INFO running `"docker" "inspect" "d9b1240224b67847f7b2b3fd3220c8a0b28f6dfba6e6c665f0404a8d9a7afda2"`
Nov 29 04:19:36.790 INFO running `"docker" "rm" "-f" "d9b1240224b67847f7b2b3fd3220c8a0b28f6dfba6e6c665f0404a8d9a7afda2"`
Nov 29 04:19:37.031 INFO [stdout] d9b1240224b67847f7b2b3fd3220c8a0b28f6dfba6e6c665f0404a8d9a7afda2