Dec 01 02:41:13.649 INFO testing shanemikel/rust-hello against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 01 02:41:13.649 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 02:41:14.208 INFO [stdout] 628f3e07f9b1de3f6d3512aca14ec8b00352fbce286a5ae6fc283939f915d7be
Dec 01 02:41:14.210 INFO running `"docker" "start" "-a" "628f3e07f9b1de3f6d3512aca14ec8b00352fbce286a5ae6fc283939f915d7be"`
Dec 01 02:41:15.298 INFO [stderr] usermod: no changes
Dec 01 02:41:15.354 INFO [stderr]    Compiling rust-hello v0.1.0 (/source)
Dec 01 02:41:15.615 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 01 02:41:15.615 INFO [stderr]  --> src/main.rs:8:9
Dec 01 02:41:15.615 INFO [stderr]   |
Dec 01 02:41:15.615 INFO [stderr] 8 |     use std::cell::RefCell;
Dec 01 02:41:15.615 INFO [stderr]   |         ^^^^^^^^^^^^^^^^^^
Dec 01 02:41:15.615 INFO [stderr]   |
Dec 01 02:41:15.615 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 01 02:41:15.615 INFO [stderr] 
Dec 01 02:41:15.615 INFO [stderr] warning: unused import: `Mutex`
Dec 01 02:41:15.615 INFO [stderr]  --> src/main.rs:9:26
Dec 01 02:41:15.615 INFO [stderr]   |
Dec 01 02:41:15.615 INFO [stderr] 9 |     use std::sync::{Arc, Mutex, RwLock};
Dec 01 02:41:15.615 INFO [stderr]   |                          ^^^^^
Dec 01 02:41:15.631 INFO [stderr] 
Dec 01 02:41:15.727 INFO [stderr] warning: unused variable: `data`
Dec 01 02:41:15.727 INFO [stderr]   --> src/main.rs:25:17
Dec 01 02:41:15.727 INFO [stderr]    |
Dec 01 02:41:15.727 INFO [stderr] 25 |             let data = data.read().unwrap();
Dec 01 02:41:15.727 INFO [stderr]    |                 ^^^^ help: consider using `_data` instead
Dec 01 02:41:15.727 INFO [stderr]    |
Dec 01 02:41:15.727 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 01 02:41:15.727 INFO [stderr] 
Dec 01 02:41:15.743 INFO [stderr] warning: enum is never used: `List`
Dec 01 02:41:15.743 INFO [stderr]  --> src/list.rs:3:1
Dec 01 02:41:15.743 INFO [stderr]   |
Dec 01 02:41:15.743 INFO [stderr] 3 | pub enum List<T> {
Dec 01 02:41:15.743 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 01 02:41:15.743 INFO [stderr]   |
Dec 01 02:41:15.743 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 01 02:41:15.743 INFO [stderr] 
Dec 01 02:41:15.743 INFO [stderr] warning: method is never used: `new`
Dec 01 02:41:15.743 INFO [stderr]  --> src/list.rs:9:5
Dec 01 02:41:15.743 INFO [stderr]   |
Dec 01 02:41:15.743 INFO [stderr] 9 |     pub fn new() -> List<T> { List::Nil }
Dec 01 02:41:15.743 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:15.743 INFO [stderr] 
Dec 01 02:41:15.743 INFO [stderr] warning: method is never used: `cons`
Dec 01 02:41:15.743 INFO [stderr]   --> src/list.rs:11:5
Dec 01 02:41:15.743 INFO [stderr]    |
Dec 01 02:41:15.743 INFO [stderr] 11 |     pub fn cons(self, x: T) -> List<T> { List::Cons(x, Box::new(self)) }
Dec 01 02:41:15.743 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:15.743 INFO [stderr] 
Dec 01 02:41:15.743 INFO [stderr] warning: method is never used: `head`
Dec 01 02:41:15.743 INFO [stderr]   --> src/list.rs:13:5
Dec 01 02:41:15.743 INFO [stderr]    |
Dec 01 02:41:15.743 INFO [stderr] 13 |     pub fn head(self) -> Option<T> {
Dec 01 02:41:15.743 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:15.743 INFO [stderr] 
Dec 01 02:41:15.743 INFO [stderr] warning: method is never used: `tail`
Dec 01 02:41:15.743 INFO [stderr]   --> src/list.rs:20:5
Dec 01 02:41:15.743 INFO [stderr]    |
Dec 01 02:41:15.743 INFO [stderr] 20 |     pub fn tail(&self) -> Option<&List<T>> {
Dec 01 02:41:15.743 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:15.743 INFO [stderr] 
Dec 01 02:41:15.743 INFO [stderr] warning: method is never used: `head_ref`
Dec 01 02:41:15.743 INFO [stderr]   --> src/list.rs:29:5
Dec 01 02:41:15.743 INFO [stderr]    |
Dec 01 02:41:15.743 INFO [stderr] 29 |     pub fn head_ref(&self) -> Option<T> {
Dec 01 02:41:15.743 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:15.743 INFO [stderr] 
Dec 01 02:41:15.743 INFO [stderr] warning: constant item is never used: `N`
Dec 01 02:41:15.743 INFO [stderr]   --> src/main.rs:13:5
Dec 01 02:41:15.743 INFO [stderr]    |
Dec 01 02:41:15.743 INFO [stderr] 13 |     const N: usize = 10;
Dec 01 02:41:15.743 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:15.743 INFO [stderr] 
Dec 01 02:41:15.743 INFO [stderr] warning: function is never used: `test_list`
Dec 01 02:41:15.743 INFO [stderr]   --> src/main.rs:39:1
Dec 01 02:41:15.744 INFO [stderr]    |
Dec 01 02:41:15.744 INFO [stderr] 39 | fn test_list() {
Dec 01 02:41:15.744 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 01 02:41:15.744 INFO [stderr] 
Dec 01 02:41:16.933 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
Dec 01 02:41:16.939 INFO [stderr] su: No module specific data is present
Dec 01 02:41:17.656 INFO running `"docker" "inspect" "628f3e07f9b1de3f6d3512aca14ec8b00352fbce286a5ae6fc283939f915d7be"`
Dec 01 02:41:17.945 INFO running `"docker" "rm" "-f" "628f3e07f9b1de3f6d3512aca14ec8b00352fbce286a5ae6fc283939f915d7be"`
Dec 01 02:41:18.243 INFO [stdout] 628f3e07f9b1de3f6d3512aca14ec8b00352fbce286a5ae6fc283939f915d7be
Dec 01 02:41:18.253 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 02:41:18.792 INFO [stdout] 1d1bc907906421b449a83e5903920a29325be95e3adf86f2c51a75c4f57e7cdd
Dec 01 02:41:18.795 INFO running `"docker" "start" "-a" "1d1bc907906421b449a83e5903920a29325be95e3adf86f2c51a75c4f57e7cdd"`
Dec 01 02:41:20.467 INFO [stderr] usermod: no changes
Dec 01 02:41:20.511 INFO [stderr]    Compiling rust-hello v0.1.0 (/source)
Dec 01 02:41:20.801 INFO [stderr] warning: unused import: `std::cell::RefCell`
Dec 01 02:41:20.801 INFO [stderr]  --> src/main.rs:8:9
Dec 01 02:41:20.801 INFO [stderr]   |
Dec 01 02:41:20.801 INFO [stderr] 8 |     use std::cell::RefCell;
Dec 01 02:41:20.801 INFO [stderr]   |         ^^^^^^^^^^^^^^^^^^
Dec 01 02:41:20.801 INFO [stderr]   |
Dec 01 02:41:20.801 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 01 02:41:20.801 INFO [stderr] 
Dec 01 02:41:20.801 INFO [stderr] warning: unused import: `Mutex`
Dec 01 02:41:20.801 INFO [stderr]  --> src/main.rs:9:26
Dec 01 02:41:20.801 INFO [stderr]   |
Dec 01 02:41:20.801 INFO [stderr] 9 |     use std::sync::{Arc, Mutex, RwLock};
Dec 01 02:41:20.801 INFO [stderr]   |                          ^^^^^
Dec 01 02:41:20.801 INFO [stderr] 
Dec 01 02:41:20.913 INFO [stderr] warning: unused variable: `data`
Dec 01 02:41:20.913 INFO [stderr]   --> src/main.rs:25:17
Dec 01 02:41:20.913 INFO [stderr]    |
Dec 01 02:41:20.914 INFO [stderr] 25 |             let data = data.read().unwrap();
Dec 01 02:41:20.914 INFO [stderr]    |                 ^^^^ help: consider using `_data` instead
Dec 01 02:41:20.914 INFO [stderr]    |
Dec 01 02:41:20.914 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 01 02:41:20.914 INFO [stderr] 
Dec 01 02:41:20.931 INFO [stderr] warning: enum is never used: `List`
Dec 01 02:41:20.932 INFO [stderr]  --> src/list.rs:3:1
Dec 01 02:41:20.932 INFO [stderr]   |
Dec 01 02:41:20.932 INFO [stderr] 3 | pub enum List<T> {
Dec 01 02:41:20.932 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 01 02:41:20.933 INFO [stderr]   |
Dec 01 02:41:20.933 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 01 02:41:20.933 INFO [stderr] 
Dec 01 02:41:20.934 INFO [stderr] warning: method is never used: `new`
Dec 01 02:41:20.934 INFO [stderr]  --> src/list.rs:9:5
Dec 01 02:41:20.934 INFO [stderr]   |
Dec 01 02:41:20.934 INFO [stderr] 9 |     pub fn new() -> List<T> { List::Nil }
Dec 01 02:41:20.935 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:20.935 INFO [stderr] 
Dec 01 02:41:20.935 INFO [stderr] warning: method is never used: `cons`
Dec 01 02:41:20.936 INFO [stderr]   --> src/list.rs:11:5
Dec 01 02:41:20.936 INFO [stderr]    |
Dec 01 02:41:20.936 INFO [stderr] 11 |     pub fn cons(self, x: T) -> List<T> { List::Cons(x, Box::new(self)) }
Dec 01 02:41:20.936 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:20.937 INFO [stderr] 
Dec 01 02:41:20.937 INFO [stderr] warning: method is never used: `head`
Dec 01 02:41:20.937 INFO [stderr]   --> src/list.rs:13:5
Dec 01 02:41:20.938 INFO [stderr]    |
Dec 01 02:41:20.938 INFO [stderr] 13 |     pub fn head(self) -> Option<T> {
Dec 01 02:41:20.938 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:20.938 INFO [stderr] 
Dec 01 02:41:20.939 INFO [stderr] warning: method is never used: `tail`
Dec 01 02:41:20.939 INFO [stderr]   --> src/list.rs:20:5
Dec 01 02:41:20.939 INFO [stderr]    |
Dec 01 02:41:20.940 INFO [stderr] 20 |     pub fn tail(&self) -> Option<&List<T>> {
Dec 01 02:41:20.940 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:20.940 INFO [stderr] 
Dec 01 02:41:20.941 INFO [stderr] warning: method is never used: `head_ref`
Dec 01 02:41:20.941 INFO [stderr]   --> src/list.rs:29:5
Dec 01 02:41:20.941 INFO [stderr]    |
Dec 01 02:41:20.941 INFO [stderr] 29 |     pub fn head_ref(&self) -> Option<T> {
Dec 01 02:41:20.942 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:20.942 INFO [stderr] 
Dec 01 02:41:20.942 INFO [stderr] warning: constant item is never used: `N`
Dec 01 02:41:20.943 INFO [stderr]   --> src/main.rs:13:5
Dec 01 02:41:20.943 INFO [stderr]    |
Dec 01 02:41:20.943 INFO [stderr] 13 |     const N: usize = 10;
Dec 01 02:41:20.944 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 01 02:41:20.944 INFO [stderr] 
Dec 01 02:41:20.944 INFO [stderr] warning: function is never used: `test_list`
Dec 01 02:41:20.945 INFO [stderr]   --> src/main.rs:39:1
Dec 01 02:41:20.945 INFO [stderr]    |
Dec 01 02:41:20.945 INFO [stderr] 39 | fn test_list() {
Dec 01 02:41:20.945 INFO [stderr]    | ^^^^^^^^^^^^^^
Dec 01 02:41:20.946 INFO [stderr] 
Dec 01 02:41:21.508 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
Dec 01 02:41:21.511 INFO [stderr] su: No module specific data is present
Dec 01 02:41:22.231 INFO running `"docker" "inspect" "1d1bc907906421b449a83e5903920a29325be95e3adf86f2c51a75c4f57e7cdd"`
Dec 01 02:41:22.489 INFO running `"docker" "rm" "-f" "1d1bc907906421b449a83e5903920a29325be95e3adf86f2c51a75c4f57e7cdd"`
Dec 01 02:41:22.783 INFO [stdout] 1d1bc907906421b449a83e5903920a29325be95e3adf86f2c51a75c4f57e7cdd
Dec 01 02:41:22.791 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-0/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 01 02:41:23.254 INFO [stdout] d54235e11b97d75a71d18e2488583c74bab68a80ccd2924eb5600cbfd3322552
Dec 01 02:41:23.259 INFO running `"docker" "start" "-a" "d54235e11b97d75a71d18e2488583c74bab68a80ccd2924eb5600cbfd3322552"`
Dec 01 02:41:24.123 INFO [stderr] usermod: no changes
Dec 01 02:41:24.179 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 01 02:41:24.187 INFO [stderr]      Running /target/debug/deps/rust_hello-09e5b9090b137a27
Dec 01 02:41:24.187 INFO [stdout] 
Dec 01 02:41:24.187 INFO [stdout] running 0 tests
Dec 01 02:41:24.187 INFO [stdout] 
Dec 01 02:41:24.187 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 01 02:41:24.187 INFO [stdout] 
Dec 01 02:41:24.195 INFO [stderr] su: No module specific data is present
Dec 01 02:41:24.737 INFO running `"docker" "inspect" "d54235e11b97d75a71d18e2488583c74bab68a80ccd2924eb5600cbfd3322552"`
Dec 01 02:41:25.147 INFO running `"docker" "rm" "-f" "d54235e11b97d75a71d18e2488583c74bab68a80ccd2924eb5600cbfd3322552"`
Dec 01 02:41:25.393 INFO [stdout] d54235e11b97d75a71d18e2488583c74bab68a80ccd2924eb5600cbfd3322552
