Nov 09 05:23:44.583 INFO checking shanemikel/rust-hello against master#653da4fd006c97625247acd7e076d0782cdc149b for pr-55632
Nov 09 05:23:44.583 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55632/worker-6/master#653da4fd006c97625247acd7e076d0782cdc149b:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55632/master#653da4fd006c97625247acd7e076d0782cdc149b:/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 +653da4fd006c97625247acd7e076d0782cdc149b-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 09 05:23:45.059 INFO blam! 949f0ee0d5aabdf265e563b4bc12891b90e1854859752194652a7f9c085e4c6a
Nov 09 05:23:45.067 INFO running `"docker" "start" "-a" "949f0ee0d5aabdf265e563b4bc12891b90e1854859752194652a7f9c085e4c6a"`
Nov 09 05:23:47.243 INFO kablam! usermod: no changes
Nov 09 05:23:47.299 INFO kablam!     Checking rust-hello v0.1.0 (/source)
Nov 09 05:23:47.575 INFO kablam! warning: unused import: `std::cell::RefCell`
Nov 09 05:23:47.575 INFO kablam!  --> src/main.rs:8:9
Nov 09 05:23:47.575 INFO kablam!   |
Nov 09 05:23:47.575 INFO kablam! 8 |     use std::cell::RefCell;
Nov 09 05:23:47.575 INFO kablam!   |         ^^^^^^^^^^^^^^^^^^
Nov 09 05:23:47.575 INFO kablam!   |
Nov 09 05:23:47.575 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 09 05:23:47.575 INFO kablam! 
Nov 09 05:23:47.575 INFO kablam! warning: unused import: `Mutex`
Nov 09 05:23:47.575 INFO kablam!  --> src/main.rs:9:26
Nov 09 05:23:47.575 INFO kablam!   |
Nov 09 05:23:47.575 INFO kablam! 9 |     use std::sync::{Arc, Mutex, RwLock};
Nov 09 05:23:47.575 INFO kablam!   |                          ^^^^^
Nov 09 05:23:47.575 INFO kablam! 
Nov 09 05:23:47.695 INFO kablam! warning: unused variable: `data`
Nov 09 05:23:47.695 INFO kablam!   --> src/main.rs:25:17
Nov 09 05:23:47.695 INFO kablam!    |
Nov 09 05:23:47.695 INFO kablam! 25 |             let data = data.read().unwrap();
Nov 09 05:23:47.695 INFO kablam!    |                 ^^^^ help: consider using `_data` instead
Nov 09 05:23:47.695 INFO kablam!    |
Nov 09 05:23:47.695 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 09 05:23:47.695 INFO kablam! 
Nov 09 05:23:47.711 INFO kablam! warning: enum is never used: `List`
Nov 09 05:23:47.711 INFO kablam!  --> src/list.rs:3:1
Nov 09 05:23:47.711 INFO kablam!   |
Nov 09 05:23:47.711 INFO kablam! 3 | pub enum List<T> {
Nov 09 05:23:47.711 INFO kablam!   | ^^^^^^^^^^^^^^^^
Nov 09 05:23:47.711 INFO kablam!   |
Nov 09 05:23:47.711 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 09 05:23:47.711 INFO kablam! 
Nov 09 05:23:47.711 INFO kablam! warning: method is never used: `new`
Nov 09 05:23:47.711 INFO kablam!  --> src/list.rs:9:5
Nov 09 05:23:47.711 INFO kablam!   |
Nov 09 05:23:47.711 INFO kablam! 9 |     pub fn new() -> List<T> { List::Nil }
Nov 09 05:23:47.711 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 05:23:47.711 INFO kablam! 
Nov 09 05:23:47.711 INFO kablam! warning: method is never used: `cons`
Nov 09 05:23:47.711 INFO kablam!   --> src/list.rs:11:5
Nov 09 05:23:47.711 INFO kablam!    |
Nov 09 05:23:47.711 INFO kablam! 11 |     pub fn cons(self, x: T) -> List<T> { List::Cons(x, Box::new(self)) }
Nov 09 05:23:47.711 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 05:23:47.711 INFO kablam! 
Nov 09 05:23:47.711 INFO kablam! warning: method is never used: `head`
Nov 09 05:23:47.711 INFO kablam!   --> src/list.rs:13:5
Nov 09 05:23:47.711 INFO kablam!    |
Nov 09 05:23:47.711 INFO kablam! 13 |     pub fn head(self) -> Option<T> {
Nov 09 05:23:47.711 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 05:23:47.711 INFO kablam! 
Nov 09 05:23:47.711 INFO kablam! warning: method is never used: `tail`
Nov 09 05:23:47.711 INFO kablam!   --> src/list.rs:20:5
Nov 09 05:23:47.711 INFO kablam!    |
Nov 09 05:23:47.711 INFO kablam! 20 |     pub fn tail(&self) -> Option<&List<T>> {
Nov 09 05:23:47.711 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 05:23:47.711 INFO kablam! 
Nov 09 05:23:47.711 INFO kablam! warning: method is never used: `head_ref`
Nov 09 05:23:47.711 INFO kablam!   --> src/list.rs:29:5
Nov 09 05:23:47.711 INFO kablam!    |
Nov 09 05:23:47.711 INFO kablam! 29 |     pub fn head_ref(&self) -> Option<T> {
Nov 09 05:23:47.711 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 05:23:47.711 INFO kablam! 
Nov 09 05:23:47.711 INFO kablam! warning: constant item is never used: `N`
Nov 09 05:23:47.711 INFO kablam!   --> src/main.rs:13:5
Nov 09 05:23:47.711 INFO kablam!    |
Nov 09 05:23:47.711 INFO kablam! 13 |     const N: usize = 10;
Nov 09 05:23:47.711 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Nov 09 05:23:47.711 INFO kablam! 
Nov 09 05:23:47.711 INFO kablam! warning: function is never used: `test_list`
Nov 09 05:23:47.711 INFO kablam!   --> src/main.rs:39:1
Nov 09 05:23:47.711 INFO kablam!    |
Nov 09 05:23:47.711 INFO kablam! 39 | fn test_list() {
Nov 09 05:23:47.711 INFO kablam!    | ^^^^^^^^^^^^^^
Nov 09 05:23:47.711 INFO kablam! 
Nov 09 05:23:47.779 INFO kablam! warning: unused import: `std::cell::RefCell`
Nov 09 05:23:47.779 INFO kablam!  --> src/main.rs:8:9
Nov 09 05:23:47.779 INFO kablam!   |
Nov 09 05:23:47.779 INFO kablam! 8 |     use std::cell::RefCell;
Nov 09 05:23:47.779 INFO kablam!   |         ^^^^^^^^^^^^^^^^^^
Nov 09 05:23:47.779 INFO kablam!   |
Nov 09 05:23:47.779 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 09 05:23:47.779 INFO kablam! 
Nov 09 05:23:47.779 INFO kablam! warning: unused import: `Mutex`
Nov 09 05:23:47.779 INFO kablam!  --> src/main.rs:9:26
Nov 09 05:23:47.779 INFO kablam!   |
Nov 09 05:23:47.779 INFO kablam! 9 |     use std::sync::{Arc, Mutex, RwLock};
Nov 09 05:23:47.779 INFO kablam!   |                          ^^^^^
Nov 09 05:23:47.779 INFO kablam! 
Nov 09 05:23:47.985 INFO kablam! warning: unused variable: `data`
Nov 09 05:23:47.986 INFO kablam!   --> src/main.rs:25:17
Nov 09 05:23:47.986 INFO kablam!    |
Nov 09 05:23:47.986 INFO kablam! 25 |             let data = data.read().unwrap();
Nov 09 05:23:47.986 INFO kablam!    |                 ^^^^ help: consider using `_data` instead
Nov 09 05:23:47.986 INFO kablam!    |
Nov 09 05:23:47.987 INFO kablam!    = note: #[warn(unused_variables)] on by default
Nov 09 05:23:47.987 INFO kablam! 
Nov 09 05:23:48.007 INFO kablam! warning: enum is never used: `List`
Nov 09 05:23:48.007 INFO kablam!  --> src/list.rs:3:1
Nov 09 05:23:48.007 INFO kablam!   |
Nov 09 05:23:48.008 INFO kablam! 3 | pub enum List<T> {
Nov 09 05:23:48.008 INFO kablam!   | ^^^^^^^^^^^^^^^^
Nov 09 05:23:48.008 INFO kablam!   |
Nov 09 05:23:48.008 INFO kablam!   = note: #[warn(dead_code)] on by default
Nov 09 05:23:48.008 INFO kablam! 
Nov 09 05:23:48.009 INFO kablam! warning: method is never used: `new`
Nov 09 05:23:48.009 INFO kablam!  --> src/list.rs:9:5
Nov 09 05:23:48.009 INFO kablam!   |
Nov 09 05:23:48.009 INFO kablam! 9 |     pub fn new() -> List<T> { List::Nil }
Nov 09 05:23:48.009 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 05:23:48.009 INFO kablam! 
Nov 09 05:23:48.009 INFO kablam! warning: method is never used: `cons`
Nov 09 05:23:48.009 INFO kablam!   --> src/list.rs:11:5
Nov 09 05:23:48.009 INFO kablam!    |
Nov 09 05:23:48.009 INFO kablam! 11 |     pub fn cons(self, x: T) -> List<T> { List::Cons(x, Box::new(self)) }
Nov 09 05:23:48.009 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 05:23:48.009 INFO kablam! 
Nov 09 05:23:48.009 INFO kablam! warning: method is never used: `head`
Nov 09 05:23:48.009 INFO kablam!   --> src/list.rs:13:5
Nov 09 05:23:48.009 INFO kablam!    |
Nov 09 05:23:48.010 INFO kablam! 13 |     pub fn head(self) -> Option<T> {
Nov 09 05:23:48.010 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 05:23:48.010 INFO kablam! 
Nov 09 05:23:48.010 INFO kablam! warning: method is never used: `tail`
Nov 09 05:23:48.010 INFO kablam!   --> src/list.rs:20:5
Nov 09 05:23:48.010 INFO kablam!    |
Nov 09 05:23:48.010 INFO kablam! 20 |     pub fn tail(&self) -> Option<&List<T>> {
Nov 09 05:23:48.010 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 05:23:48.010 INFO kablam! 
Nov 09 05:23:48.010 INFO kablam! warning: method is never used: `head_ref`
Nov 09 05:23:48.010 INFO kablam!   --> src/list.rs:29:5
Nov 09 05:23:48.011 INFO kablam!    |
Nov 09 05:23:48.011 INFO kablam! 29 |     pub fn head_ref(&self) -> Option<T> {
Nov 09 05:23:48.011 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 09 05:23:48.011 INFO kablam! 
Nov 09 05:23:48.011 INFO kablam! warning: constant item is never used: `N`
Nov 09 05:23:48.011 INFO kablam!   --> src/main.rs:13:5
Nov 09 05:23:48.011 INFO kablam!    |
Nov 09 05:23:48.011 INFO kablam! 13 |     const N: usize = 10;
Nov 09 05:23:48.011 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Nov 09 05:23:48.011 INFO kablam! 
Nov 09 05:23:48.011 INFO kablam! warning: function is never used: `test_list`
Nov 09 05:23:48.011 INFO kablam!   --> src/main.rs:39:1
Nov 09 05:23:48.011 INFO kablam!    |
Nov 09 05:23:48.011 INFO kablam! 39 | fn test_list() {
Nov 09 05:23:48.012 INFO kablam!    | ^^^^^^^^^^^^^^
Nov 09 05:23:48.012 INFO kablam! 
Nov 09 05:23:48.047 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.78s
Nov 09 05:23:48.049 INFO kablam! su: No module specific data is present
Nov 09 05:23:49.057 INFO running `"docker" "rm" "-f" "949f0ee0d5aabdf265e563b4bc12891b90e1854859752194652a7f9c085e4c6a"`
Nov 09 05:23:49.317 INFO blam! 949f0ee0d5aabdf265e563b4bc12891b90e1854859752194652a7f9c085e4c6a