Oct 31 22:30:21.122 INFO testing ryota-sakamoto/rust_study against 1.30.0 for beta-1.31-1
Oct 31 22:30:21.122 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-6/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/beta-1.31-1/1.30.0:/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 +1.30.0 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"`
Oct 31 22:30:21.540 INFO blam! 7cef9deafca183f7f679aa035cf5ba22e119892ab384465721ff04c14b5ff2d0
Oct 31 22:30:21.551 INFO running `"docker" "start" "-a" "7cef9deafca183f7f679aa035cf5ba22e119892ab384465721ff04c14b5ff2d0"`
Oct 31 22:30:22.603 INFO kablam! usermod: no changes
Oct 31 22:30:22.687 INFO kablam!    Compiling rust_test v0.1.0 (/source)
Oct 31 22:30:22.907 INFO kablam! warning: unused macro definition
Oct 31 22:30:22.908 INFO kablam!   --> src/list.rs:53:1
Oct 31 22:30:22.908 INFO kablam!    |
Oct 31 22:30:22.908 INFO kablam! 53 | / macro_rules! list {
Oct 31 22:30:22.908 INFO kablam! 54 | |     ($($n: expr),*) => {
Oct 31 22:30:22.909 INFO kablam! 55 | |         {
Oct 31 22:30:22.909 INFO kablam! 56 | |             let mut list = List::empty_list();
Oct 31 22:30:22.909 INFO kablam! ...  |
Oct 31 22:30:22.909 INFO kablam! 74 | |     };
Oct 31 22:30:22.910 INFO kablam! 75 | | }
Oct 31 22:30:22.910 INFO kablam!    | |_^
Oct 31 22:30:22.910 INFO kablam!    |
Oct 31 22:30:22.910 INFO kablam!    = note: #[warn(unused_macros)] on by default
Oct 31 22:30:22.911 INFO kablam! 
Oct 31 22:30:22.967 INFO kablam! warning: function is never used: `call`
Oct 31 22:30:22.967 INFO kablam!  --> src/module.rs:1:1
Oct 31 22:30:22.967 INFO kablam!   |
Oct 31 22:30:22.967 INFO kablam! 1 | pub fn call() {
Oct 31 22:30:22.967 INFO kablam!   | ^^^^^^^^^^^^^
Oct 31 22:30:22.967 INFO kablam!   |
Oct 31 22:30:22.967 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 31 22:30:22.967 INFO kablam! 
Oct 31 22:30:22.967 INFO kablam! warning: enum is never used: `List`
Oct 31 22:30:22.967 INFO kablam!  --> src/list.rs:4:1
Oct 31 22:30:22.967 INFO kablam!   |
Oct 31 22:30:22.967 INFO kablam! 4 | pub enum List<T: Debug> {
Oct 31 22:30:22.967 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:22.967 INFO kablam! 
Oct 31 22:30:22.967 INFO kablam! warning: method is never used: `empty_list`
Oct 31 22:30:22.967 INFO kablam!   --> src/list.rs:13:5
Oct 31 22:30:22.967 INFO kablam!    |
Oct 31 22:30:22.967 INFO kablam! 13 |     pub fn empty_list() -> List<T> {
Oct 31 22:30:22.967 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:22.967 INFO kablam! 
Oct 31 22:30:22.967 INFO kablam! warning: method is never used: `prepend`
Oct 31 22:30:22.967 INFO kablam!   --> src/list.rs:17:5
Oct 31 22:30:22.967 INFO kablam!    |
Oct 31 22:30:22.967 INFO kablam! 17 |     pub fn prepend(self, t: T) -> Self {
Oct 31 22:30:22.967 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:22.967 INFO kablam! 
Oct 31 22:30:22.967 INFO kablam! warning: method is never used: `head`
Oct 31 22:30:22.967 INFO kablam!   --> src/list.rs:24:5
Oct 31 22:30:22.967 INFO kablam!    |
Oct 31 22:30:22.967 INFO kablam! 24 |     pub fn head(&self) -> &T {
Oct 31 22:30:22.967 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:22.967 INFO kablam! 
Oct 31 22:30:22.967 INFO kablam! warning: method is never used: `last`
Oct 31 22:30:22.967 INFO kablam!   --> src/list.rs:31:5
Oct 31 22:30:22.967 INFO kablam!    |
Oct 31 22:30:22.967 INFO kablam! 31 |     pub fn last(&self) -> &T {
Oct 31 22:30:22.967 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:22.967 INFO kablam! 
Oct 31 22:30:22.967 INFO kablam! warning: method is never used: `is_empty`
Oct 31 22:30:22.967 INFO kablam!   --> src/list.rs:44:5
Oct 31 22:30:22.967 INFO kablam!    |
Oct 31 22:30:22.967 INFO kablam! 44 |     fn is_empty(&self) -> bool {
Oct 31 22:30:22.967 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:22.967 INFO kablam! 
Oct 31 22:30:22.967 INFO kablam! warning: function is never used: `tailrec`
Oct 31 22:30:22.967 INFO kablam!   --> src/list.rs:87:1
Oct 31 22:30:22.967 INFO kablam!    |
Oct 31 22:30:22.967 INFO kablam! 87 | fn tailrec<T: Debug>(list: &List<T>) {
Oct 31 22:30:22.967 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:22.967 INFO kablam! 
Oct 31 22:30:22.967 INFO kablam! warning: the `head:` in this pattern is redundant
Oct 31 22:30:22.967 INFO kablam!   --> src/list.rs:27:26
Oct 31 22:30:22.967 INFO kablam!    |
Oct 31 22:30:22.967 INFO kablam! 27 |             &List::List {head: ref head, tail: _} => head,
Oct 31 22:30:22.967 INFO kablam!    |                          -----^^^^^^^^^
Oct 31 22:30:22.967 INFO kablam!    |                          |
Oct 31 22:30:22.967 INFO kablam!    |                          help: remove this
Oct 31 22:30:22.967 INFO kablam!    |
Oct 31 22:30:22.967 INFO kablam!    = note: #[warn(non_shorthand_field_patterns)] on by default
Oct 31 22:30:22.967 INFO kablam! 
Oct 31 22:30:22.967 INFO kablam! warning: the `head:` in this pattern is redundant
Oct 31 22:30:22.967 INFO kablam!   --> src/list.rs:34:26
Oct 31 22:30:22.967 INFO kablam!    |
Oct 31 22:30:22.967 INFO kablam! 34 |             &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:22.967 INFO kablam!    |                          -----^^^^^^^^^
Oct 31 22:30:22.967 INFO kablam!    |                          |
Oct 31 22:30:22.967 INFO kablam!    |                          help: remove this
Oct 31 22:30:22.967 INFO kablam! 
Oct 31 22:30:22.967 INFO kablam! warning: the `tail:` in this pattern is redundant
Oct 31 22:30:22.967 INFO kablam!   --> src/list.rs:34:42
Oct 31 22:30:22.967 INFO kablam!    |
Oct 31 22:30:22.967 INFO kablam! 34 |             &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:22.967 INFO kablam!    |                                          -----^^^^^^^^^
Oct 31 22:30:22.967 INFO kablam!    |                                          |
Oct 31 22:30:22.968 INFO kablam!    |                                          help: remove this
Oct 31 22:30:22.968 INFO kablam! 
Oct 31 22:30:22.968 INFO kablam! warning: the `head:` in this pattern is redundant
Oct 31 22:30:22.968 INFO kablam!   --> src/list.rs:90:22
Oct 31 22:30:22.968 INFO kablam!    |
Oct 31 22:30:22.968 INFO kablam! 90 |         &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:22.968 INFO kablam!    |                      -----^^^^^^^^^
Oct 31 22:30:22.968 INFO kablam!    |                      |
Oct 31 22:30:22.968 INFO kablam!    |                      help: remove this
Oct 31 22:30:22.968 INFO kablam! 
Oct 31 22:30:22.968 INFO kablam! warning: the `tail:` in this pattern is redundant
Oct 31 22:30:22.968 INFO kablam!   --> src/list.rs:90:38
Oct 31 22:30:22.968 INFO kablam!    |
Oct 31 22:30:22.968 INFO kablam! 90 |         &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:22.968 INFO kablam!    |                                      -----^^^^^^^^^
Oct 31 22:30:22.968 INFO kablam!    |                                      |
Oct 31 22:30:22.968 INFO kablam!    |                                      help: remove this
Oct 31 22:30:22.968 INFO kablam! 
Oct 31 22:30:23.247 INFO kablam! warning: unused macro definition
Oct 31 22:30:23.248 INFO kablam!   --> src/list.rs:53:1
Oct 31 22:30:23.248 INFO kablam!    |
Oct 31 22:30:23.248 INFO kablam! 53 | / macro_rules! list {
Oct 31 22:30:23.248 INFO kablam! 54 | |     ($($n: expr),*) => {
Oct 31 22:30:23.249 INFO kablam! 55 | |         {
Oct 31 22:30:23.249 INFO kablam! 56 | |             let mut list = List::empty_list();
Oct 31 22:30:23.249 INFO kablam! ...  |
Oct 31 22:30:23.250 INFO kablam! 74 | |     };
Oct 31 22:30:23.250 INFO kablam! 75 | | }
Oct 31 22:30:23.250 INFO kablam!    | |_^
Oct 31 22:30:23.251 INFO kablam!    |
Oct 31 22:30:23.251 INFO kablam!    = note: #[warn(unused_macros)] on by default
Oct 31 22:30:23.251 INFO kablam! 
Oct 31 22:30:23.359 INFO kablam! warning: method is never used: `head`
Oct 31 22:30:23.359 INFO kablam!   --> src/list.rs:24:5
Oct 31 22:30:23.359 INFO kablam!    |
Oct 31 22:30:23.359 INFO kablam! 24 |     pub fn head(&self) -> &T {
Oct 31 22:30:23.359 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:23.359 INFO kablam!    |
Oct 31 22:30:23.359 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 31 22:30:23.359 INFO kablam! 
Oct 31 22:30:23.359 INFO kablam! warning: method is never used: `last`
Oct 31 22:30:23.359 INFO kablam!   --> src/list.rs:31:5
Oct 31 22:30:23.359 INFO kablam!    |
Oct 31 22:30:23.359 INFO kablam! 31 |     pub fn last(&self) -> &T {
Oct 31 22:30:23.359 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:23.359 INFO kablam! 
Oct 31 22:30:23.359 INFO kablam! warning: method is never used: `is_empty`
Oct 31 22:30:23.359 INFO kablam!   --> src/list.rs:44:5
Oct 31 22:30:23.359 INFO kablam!    |
Oct 31 22:30:23.359 INFO kablam! 44 |     fn is_empty(&self) -> bool {
Oct 31 22:30:23.359 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:23.359 INFO kablam! 
Oct 31 22:30:23.359 INFO kablam! warning: function is never used: `tailrec`
Oct 31 22:30:23.359 INFO kablam!   --> src/list.rs:87:1
Oct 31 22:30:23.359 INFO kablam!    |
Oct 31 22:30:23.359 INFO kablam! 87 | fn tailrec<T: Debug>(list: &List<T>) {
Oct 31 22:30:23.359 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:23.359 INFO kablam! 
Oct 31 22:30:23.359 INFO kablam! warning: the `head:` in this pattern is redundant
Oct 31 22:30:23.359 INFO kablam!   --> src/list.rs:27:26
Oct 31 22:30:23.359 INFO kablam!    |
Oct 31 22:30:23.359 INFO kablam! 27 |             &List::List {head: ref head, tail: _} => head,
Oct 31 22:30:23.359 INFO kablam!    |                          -----^^^^^^^^^
Oct 31 22:30:23.359 INFO kablam!    |                          |
Oct 31 22:30:23.359 INFO kablam!    |                          help: remove this
Oct 31 22:30:23.359 INFO kablam!    |
Oct 31 22:30:23.359 INFO kablam!    = note: #[warn(non_shorthand_field_patterns)] on by default
Oct 31 22:30:23.359 INFO kablam! 
Oct 31 22:30:23.359 INFO kablam! warning: the `head:` in this pattern is redundant
Oct 31 22:30:23.359 INFO kablam!   --> src/list.rs:34:26
Oct 31 22:30:23.359 INFO kablam!    |
Oct 31 22:30:23.359 INFO kablam! 34 |             &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:23.359 INFO kablam!    |                          -----^^^^^^^^^
Oct 31 22:30:23.359 INFO kablam!    |                          |
Oct 31 22:30:23.359 INFO kablam!    |                          help: remove this
Oct 31 22:30:23.359 INFO kablam! 
Oct 31 22:30:23.359 INFO kablam! warning: the `tail:` in this pattern is redundant
Oct 31 22:30:23.359 INFO kablam!   --> src/list.rs:34:42
Oct 31 22:30:23.359 INFO kablam!    |
Oct 31 22:30:23.359 INFO kablam! 34 |             &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:23.359 INFO kablam!    |                                          -----^^^^^^^^^
Oct 31 22:30:23.359 INFO kablam!    |                                          |
Oct 31 22:30:23.359 INFO kablam!    |                                          help: remove this
Oct 31 22:30:23.359 INFO kablam! 
Oct 31 22:30:23.359 INFO kablam! warning: the `head:` in this pattern is redundant
Oct 31 22:30:23.359 INFO kablam!   --> src/list.rs:90:22
Oct 31 22:30:23.359 INFO kablam!    |
Oct 31 22:30:23.359 INFO kablam! 90 |         &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:23.359 INFO kablam!    |                      -----^^^^^^^^^
Oct 31 22:30:23.359 INFO kablam!    |                      |
Oct 31 22:30:23.359 INFO kablam!    |                      help: remove this
Oct 31 22:30:23.359 INFO kablam! 
Oct 31 22:30:23.359 INFO kablam! warning: the `tail:` in this pattern is redundant
Oct 31 22:30:23.359 INFO kablam!   --> src/list.rs:90:38
Oct 31 22:30:23.359 INFO kablam!    |
Oct 31 22:30:23.359 INFO kablam! 90 |         &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:23.359 INFO kablam!    |                                      -----^^^^^^^^^
Oct 31 22:30:23.359 INFO kablam!    |                                      |
Oct 31 22:30:23.359 INFO kablam!    |                                      help: remove this
Oct 31 22:30:23.359 INFO kablam! 
Oct 31 22:30:24.103 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.46s
Oct 31 22:30:24.107 INFO kablam! su: No module specific data is present
Oct 31 22:30:24.718 INFO running `"docker" "rm" "-f" "7cef9deafca183f7f679aa035cf5ba22e119892ab384465721ff04c14b5ff2d0"`
Oct 31 22:30:24.959 INFO blam! 7cef9deafca183f7f679aa035cf5ba22e119892ab384465721ff04c14b5ff2d0
Oct 31 22:30:24.971 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-6/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/beta-1.31-1/1.30.0:/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 +1.30.0 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"`
Oct 31 22:30:25.427 INFO blam! 45c8d6fbdb4e417b2876e9f8f71b40d4179ddd8886a63ec3724ebbe22cb2e2f4
Oct 31 22:30:25.429 INFO running `"docker" "start" "-a" "45c8d6fbdb4e417b2876e9f8f71b40d4179ddd8886a63ec3724ebbe22cb2e2f4"`
Oct 31 22:30:26.715 INFO kablam! usermod: no changes
Oct 31 22:30:26.810 INFO kablam!    Compiling rust_test v0.1.0 (/source)
Oct 31 22:30:27.171 INFO kablam! warning: unused macro definition
Oct 31 22:30:27.174 INFO kablam!   --> src/list.rs:53:1
Oct 31 22:30:27.174 INFO kablam!    |
Oct 31 22:30:27.174 INFO kablam! 53 | / macro_rules! list {
Oct 31 22:30:27.174 INFO kablam! 54 | |     ($($n: expr),*) => {
Oct 31 22:30:27.174 INFO kablam! 55 | |         {
Oct 31 22:30:27.174 INFO kablam! 56 | |             let mut list = List::empty_list();
Oct 31 22:30:27.174 INFO kablam! ...  |
Oct 31 22:30:27.174 INFO kablam! 74 | |     };
Oct 31 22:30:27.174 INFO kablam! 75 | | }
Oct 31 22:30:27.174 INFO kablam!    | |_^
Oct 31 22:30:27.174 INFO kablam!    |
Oct 31 22:30:27.174 INFO kablam!    = note: #[warn(unused_macros)] on by default
Oct 31 22:30:27.174 INFO kablam! 
Oct 31 22:30:27.215 INFO kablam! warning: unused macro definition
Oct 31 22:30:27.215 INFO kablam!   --> src/list.rs:53:1
Oct 31 22:30:27.215 INFO kablam!    |
Oct 31 22:30:27.215 INFO kablam! 53 | / macro_rules! list {
Oct 31 22:30:27.215 INFO kablam! 54 | |     ($($n: expr),*) => {
Oct 31 22:30:27.215 INFO kablam! 55 | |         {
Oct 31 22:30:27.215 INFO kablam! 56 | |             let mut list = List::empty_list();
Oct 31 22:30:27.215 INFO kablam! ...  |
Oct 31 22:30:27.215 INFO kablam! 74 | |     };
Oct 31 22:30:27.215 INFO kablam! 75 | | }
Oct 31 22:30:27.215 INFO kablam!    | |_^
Oct 31 22:30:27.215 INFO kablam!    |
Oct 31 22:30:27.215 INFO kablam!    = note: #[warn(unused_macros)] on by default
Oct 31 22:30:27.215 INFO kablam! 
Oct 31 22:30:27.303 INFO kablam! warning: function is never used: `call`
Oct 31 22:30:27.303 INFO kablam!  --> src/module.rs:1:1
Oct 31 22:30:27.303 INFO kablam!   |
Oct 31 22:30:27.303 INFO kablam! 1 | pub fn call() {
Oct 31 22:30:27.303 INFO kablam!   | ^^^^^^^^^^^^^
Oct 31 22:30:27.303 INFO kablam!   |
Oct 31 22:30:27.308 INFO kablam!   = note: #[warn(dead_code)] on by default
Oct 31 22:30:27.308 INFO kablam! 
Oct 31 22:30:27.308 INFO kablam! warning: enum is never used: `List`
Oct 31 22:30:27.309 INFO kablam!  --> src/list.rs:4:1
Oct 31 22:30:27.309 INFO kablam!   |
Oct 31 22:30:27.309 INFO kablam! 4 | pub enum List<T: Debug> {
Oct 31 22:30:27.309 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:27.309 INFO kablam! 
Oct 31 22:30:27.310 INFO kablam! warning: method is never used: `empty_list`
Oct 31 22:30:27.310 INFO kablam!   --> src/list.rs:13:5
Oct 31 22:30:27.310 INFO kablam!    |
Oct 31 22:30:27.310 INFO kablam! 13 |     pub fn empty_list() -> List<T> {
Oct 31 22:30:27.310 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:27.311 INFO kablam! 
Oct 31 22:30:27.311 INFO kablam! warning: method is never used: `prepend`
Oct 31 22:30:27.311 INFO kablam!   --> src/list.rs:17:5
Oct 31 22:30:27.311 INFO kablam!    |
Oct 31 22:30:27.311 INFO kablam! 17 |     pub fn prepend(self, t: T) -> Self {
Oct 31 22:30:27.311 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:27.312 INFO kablam! 
Oct 31 22:30:27.312 INFO kablam! warning: method is never used: `head`
Oct 31 22:30:27.312 INFO kablam!   --> src/list.rs:24:5
Oct 31 22:30:27.312 INFO kablam!    |
Oct 31 22:30:27.312 INFO kablam! 24 |     pub fn head(&self) -> &T {
Oct 31 22:30:27.312 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:27.313 INFO kablam! 
Oct 31 22:30:27.313 INFO kablam! warning: method is never used: `last`
Oct 31 22:30:27.313 INFO kablam!   --> src/list.rs:31:5
Oct 31 22:30:27.313 INFO kablam!    |
Oct 31 22:30:27.313 INFO kablam! 31 |     pub fn last(&self) -> &T {
Oct 31 22:30:27.313 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:27.314 INFO kablam! 
Oct 31 22:30:27.314 INFO kablam! warning: method is never used: `is_empty`
Oct 31 22:30:27.314 INFO kablam!   --> src/list.rs:44:5
Oct 31 22:30:27.314 INFO kablam!    |
Oct 31 22:30:27.314 INFO kablam! 44 |     fn is_empty(&self) -> bool {
Oct 31 22:30:27.314 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:27.315 INFO kablam! 
Oct 31 22:30:27.315 INFO kablam! warning: function is never used: `tailrec`
Oct 31 22:30:27.315 INFO kablam!   --> src/list.rs:87:1
Oct 31 22:30:27.315 INFO kablam!    |
Oct 31 22:30:27.315 INFO kablam! 87 | fn tailrec<T: Debug>(list: &List<T>) {
Oct 31 22:30:27.315 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:27.315 INFO kablam! 
Oct 31 22:30:27.327 INFO kablam! warning: the `head:` in this pattern is redundant
Oct 31 22:30:27.327 INFO kablam!   --> src/list.rs:27:26
Oct 31 22:30:27.327 INFO kablam!    |
Oct 31 22:30:27.327 INFO kablam! 27 |             &List::List {head: ref head, tail: _} => head,
Oct 31 22:30:27.328 INFO kablam!    |                          -----^^^^^^^^^
Oct 31 22:30:27.328 INFO kablam!    |                          |
Oct 31 22:30:27.328 INFO kablam!    |                          help: remove this
Oct 31 22:30:27.328 INFO kablam!    |
Oct 31 22:30:27.328 INFO kablam!    = note: #[warn(non_shorthand_field_patterns)] on by default
Oct 31 22:30:27.329 INFO kablam! 
Oct 31 22:30:27.329 INFO kablam! warning: the `head:` in this pattern is redundant
Oct 31 22:30:27.329 INFO kablam!   --> src/list.rs:34:26
Oct 31 22:30:27.329 INFO kablam!    |
Oct 31 22:30:27.329 INFO kablam! 34 |             &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:27.329 INFO kablam!    |                          -----^^^^^^^^^
Oct 31 22:30:27.330 INFO kablam!    |                          |
Oct 31 22:30:27.330 INFO kablam!    |                          help: remove this
Oct 31 22:30:27.330 INFO kablam! 
Oct 31 22:30:27.330 INFO kablam! warning: the `tail:` in this pattern is redundant
Oct 31 22:30:27.330 INFO kablam!   --> src/list.rs:34:42
Oct 31 22:30:27.330 INFO kablam!    |
Oct 31 22:30:27.331 INFO kablam! 34 |             &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:27.331 INFO kablam!    |                                          -----^^^^^^^^^
Oct 31 22:30:27.331 INFO kablam!    |                                          |
Oct 31 22:30:27.331 INFO kablam!    |                                          help: remove this
Oct 31 22:30:27.331 INFO kablam! 
Oct 31 22:30:27.331 INFO kablam! warning: the `head:` in this pattern is redundant
Oct 31 22:30:27.332 INFO kablam!   --> src/list.rs:90:22
Oct 31 22:30:27.332 INFO kablam!    |
Oct 31 22:30:27.332 INFO kablam! 90 |         &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:27.332 INFO kablam!    |                      -----^^^^^^^^^
Oct 31 22:30:27.332 INFO kablam!    |                      |
Oct 31 22:30:27.332 INFO kablam!    |                      help: remove this
Oct 31 22:30:27.333 INFO kablam! 
Oct 31 22:30:27.333 INFO kablam! warning: the `tail:` in this pattern is redundant
Oct 31 22:30:27.333 INFO kablam!   --> src/list.rs:90:38
Oct 31 22:30:27.333 INFO kablam!    |
Oct 31 22:30:27.333 INFO kablam! 90 |         &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:27.333 INFO kablam!    |                                      -----^^^^^^^^^
Oct 31 22:30:27.334 INFO kablam!    |                                      |
Oct 31 22:30:27.334 INFO kablam!    |                                      help: remove this
Oct 31 22:30:27.334 INFO kablam! 
Oct 31 22:30:27.371 INFO kablam! warning: method is never used: `head`
Oct 31 22:30:27.371 INFO kablam!   --> src/list.rs:24:5
Oct 31 22:30:27.371 INFO kablam!    |
Oct 31 22:30:27.372 INFO kablam! 24 |     pub fn head(&self) -> &T {
Oct 31 22:30:27.372 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:27.372 INFO kablam!    |
Oct 31 22:30:27.372 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 31 22:30:27.372 INFO kablam! 
Oct 31 22:30:27.372 INFO kablam! warning: method is never used: `last`
Oct 31 22:30:27.373 INFO kablam!   --> src/list.rs:31:5
Oct 31 22:30:27.373 INFO kablam!    |
Oct 31 22:30:27.373 INFO kablam! 31 |     pub fn last(&self) -> &T {
Oct 31 22:30:27.373 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:27.373 INFO kablam! 
Oct 31 22:30:27.373 INFO kablam! warning: method is never used: `is_empty`
Oct 31 22:30:27.373 INFO kablam!   --> src/list.rs:44:5
Oct 31 22:30:27.373 INFO kablam!    |
Oct 31 22:30:27.374 INFO kablam! 44 |     fn is_empty(&self) -> bool {
Oct 31 22:30:27.374 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:27.374 INFO kablam! 
Oct 31 22:30:27.374 INFO kablam! warning: function is never used: `tailrec`
Oct 31 22:30:27.374 INFO kablam!   --> src/list.rs:87:1
Oct 31 22:30:27.375 INFO kablam!    |
Oct 31 22:30:27.375 INFO kablam! 87 | fn tailrec<T: Debug>(list: &List<T>) {
Oct 31 22:30:27.375 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 31 22:30:27.375 INFO kablam! 
Oct 31 22:30:27.375 INFO kablam! warning: the `head:` in this pattern is redundant
Oct 31 22:30:27.375 INFO kablam!   --> src/list.rs:27:26
Oct 31 22:30:27.376 INFO kablam!    |
Oct 31 22:30:27.376 INFO kablam! 27 |             &List::List {head: ref head, tail: _} => head,
Oct 31 22:30:27.376 INFO kablam!    |                          -----^^^^^^^^^
Oct 31 22:30:27.376 INFO kablam!    |                          |
Oct 31 22:30:27.376 INFO kablam!    |                          help: remove this
Oct 31 22:30:27.376 INFO kablam!    |
Oct 31 22:30:27.376 INFO kablam!    = note: #[warn(non_shorthand_field_patterns)] on by default
Oct 31 22:30:27.377 INFO kablam! 
Oct 31 22:30:27.377 INFO kablam! warning: the `head:` in this pattern is redundant
Oct 31 22:30:27.377 INFO kablam!   --> src/list.rs:34:26
Oct 31 22:30:27.377 INFO kablam!    |
Oct 31 22:30:27.377 INFO kablam! 34 |             &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:27.377 INFO kablam!    |                          -----^^^^^^^^^
Oct 31 22:30:27.377 INFO kablam!    |                          |
Oct 31 22:30:27.378 INFO kablam!    |                          help: remove this
Oct 31 22:30:27.378 INFO kablam! 
Oct 31 22:30:27.378 INFO kablam! warning: the `tail:` in this pattern is redundant
Oct 31 22:30:27.378 INFO kablam!   --> src/list.rs:34:42
Oct 31 22:30:27.378 INFO kablam!    |
Oct 31 22:30:27.378 INFO kablam! 34 |             &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:27.383 INFO kablam!    |                                          -----^^^^^^^^^
Oct 31 22:30:27.383 INFO kablam!    |                                          |
Oct 31 22:30:27.383 INFO kablam!    |                                          help: remove this
Oct 31 22:30:27.383 INFO kablam! 
Oct 31 22:30:27.383 INFO kablam! warning: the `head:` in this pattern is redundant
Oct 31 22:30:27.383 INFO kablam!   --> src/list.rs:90:22
Oct 31 22:30:27.383 INFO kablam!    |
Oct 31 22:30:27.383 INFO kablam! 90 |         &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:27.383 INFO kablam!    |                      -----^^^^^^^^^
Oct 31 22:30:27.384 INFO kablam!    |                      |
Oct 31 22:30:27.384 INFO kablam!    |                      help: remove this
Oct 31 22:30:27.384 INFO kablam! 
Oct 31 22:30:27.384 INFO kablam! warning: the `tail:` in this pattern is redundant
Oct 31 22:30:27.384 INFO kablam!   --> src/list.rs:90:38
Oct 31 22:30:27.384 INFO kablam!    |
Oct 31 22:30:27.384 INFO kablam! 90 |         &List::List {head: ref head, tail: ref tail} => {
Oct 31 22:30:27.384 INFO kablam!    |                                      -----^^^^^^^^^
Oct 31 22:30:27.384 INFO kablam!    |                                      |
Oct 31 22:30:27.384 INFO kablam!    |                                      help: remove this
Oct 31 22:30:27.384 INFO kablam! 
Oct 31 22:30:28.062 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
Oct 31 22:30:28.075 INFO kablam! su: No module specific data is present
Oct 31 22:30:28.605 INFO running `"docker" "rm" "-f" "45c8d6fbdb4e417b2876e9f8f71b40d4179ddd8886a63ec3724ebbe22cb2e2f4"`
Oct 31 22:30:28.927 INFO blam! 45c8d6fbdb4e417b2876e9f8f71b40d4179ddd8886a63ec3724ebbe22cb2e2f4
Oct 31 22:30:28.931 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-1/worker-6/1.30.0:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/beta-1.31-1/1.30.0:/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 +1.30.0 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"`
Oct 31 22:30:29.495 INFO blam! 0b13f601d73a4a9a04c3f7b74f8fef312d479ccffe64fd059c77d3869f16f76e
Oct 31 22:30:29.499 INFO running `"docker" "start" "-a" "0b13f601d73a4a9a04c3f7b74f8fef312d479ccffe64fd059c77d3869f16f76e"`
Oct 31 22:30:30.522 INFO kablam! usermod: no changes
Oct 31 22:30:30.611 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
Oct 31 22:30:30.619 INFO kablam!      Running /target/debug/deps/rust_test-c0eddff9bd467465
Oct 31 22:30:30.627 INFO kablam!      Running /target/debug/deps/rust_test-45f6c90276190c14
Oct 31 22:30:30.627 INFO blam! 
Oct 31 22:30:30.627 INFO blam! running 0 tests
Oct 31 22:30:30.627 INFO blam! 
Oct 31 22:30:30.627 INFO blam! test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Oct 31 22:30:30.627 INFO blam! 
Oct 31 22:30:30.638 INFO blam! 
Oct 31 22:30:30.638 INFO kablam!    Doc-tests rust_test
Oct 31 22:30:30.639 INFO blam! running 0 tests
Oct 31 22:30:30.639 INFO blam! 
Oct 31 22:30:30.639 INFO blam! test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Oct 31 22:30:30.639 INFO blam! 
Oct 31 22:30:31.142 INFO blam! 
Oct 31 22:30:31.142 INFO blam! running 0 tests
Oct 31 22:30:31.142 INFO blam! 
Oct 31 22:30:31.142 INFO blam! test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Oct 31 22:30:31.142 INFO blam! 
Oct 31 22:30:31.164 INFO kablam! su: No module specific data is present
Oct 31 22:30:31.695 INFO running `"docker" "rm" "-f" "0b13f601d73a4a9a04c3f7b74f8fef312d479ccffe64fd059c77d3869f16f76e"`
Oct 31 22:30:32.031 INFO blam! 0b13f601d73a4a9a04c3f7b74f8fef312d479ccffe64fd059c77d3869f16f76e
