Dec 18 09:41:49.953 INFO checking urchin-0.1.1 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 09:41:49.954 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/urchin/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 09:41:50.500 INFO [stdout] 536d367b684ebbc1e6508832b04abed15038347124334e9626bbcdb366cb3723
Dec 18 09:41:50.504 INFO running `"docker" "start" "-a" "536d367b684ebbc1e6508832b04abed15038347124334e9626bbcdb366cb3723"`
Dec 18 09:41:52.341 INFO [stderr]     Checking urchin v0.1.1 (/opt/crater/workdir)
Dec 18 09:41:52.756 INFO [stderr] warning: enum is never used: `FutureState`
Dec 18 09:41:52.756 INFO [stderr]  --> src/future.rs:6:1
Dec 18 09:41:52.756 INFO [stderr]   |
Dec 18 09:41:52.756 INFO [stderr] 6 | enum FutureState<T, E> {
Dec 18 09:41:52.756 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.756 INFO [stderr]   |
Dec 18 09:41:52.756 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 18 09:41:52.756 INFO [stderr] 
Dec 18 09:41:52.756 INFO [stderr] warning: struct is never constructed: `FutureInner`
Dec 18 09:41:52.756 INFO [stderr]   --> src/future.rs:13:1
Dec 18 09:41:52.756 INFO [stderr]    |
Dec 18 09:41:52.756 INFO [stderr] 13 | pub struct FutureInner<T, E> {
Dec 18 09:41:52.756 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.756 INFO [stderr] 
Dec 18 09:41:52.756 INFO [stderr] warning: method is never used: `promised`
Dec 18 09:41:52.756 INFO [stderr]   --> src/future.rs:18:5
Dec 18 09:41:52.756 INFO [stderr]    |
Dec 18 09:41:52.756 INFO [stderr] 18 |     fn promised() -> FutureInner<T, E> {
Dec 18 09:41:52.756 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.756 INFO [stderr] 
Dec 18 09:41:52.756 INFO [stderr] warning: method is never used: `from_val`
Dec 18 09:41:52.756 INFO [stderr]   --> src/future.rs:24:5
Dec 18 09:41:52.756 INFO [stderr]    |
Dec 18 09:41:52.756 INFO [stderr] 24 |     fn from_val(val: T) -> FutureInner<T, E> {
Dec 18 09:41:52.756 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.756 INFO [stderr] 
Dec 18 09:41:52.756 INFO [stderr] warning: method is never used: `from_err`
Dec 18 09:41:52.756 INFO [stderr]   --> src/future.rs:30:5
Dec 18 09:41:52.756 INFO [stderr]    |
Dec 18 09:41:52.756 INFO [stderr] 30 |     fn from_err(err: E) -> FutureInner<T, E> {
Dec 18 09:41:52.756 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.756 INFO [stderr] 
Dec 18 09:41:52.756 INFO [stderr] warning: method is never used: `unwrap`
Dec 18 09:41:52.756 INFO [stderr]   --> src/future.rs:36:5
Dec 18 09:41:52.756 INFO [stderr]    |
Dec 18 09:41:52.756 INFO [stderr] 36 |     fn unwrap(self) -> T {
Dec 18 09:41:52.756 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.756 INFO [stderr] 
Dec 18 09:41:52.756 INFO [stderr] warning: method is never used: `unwrap_err`
Dec 18 09:41:52.756 INFO [stderr]   --> src/future.rs:43:5
Dec 18 09:41:52.756 INFO [stderr]    |
Dec 18 09:41:52.756 INFO [stderr] 43 |     fn unwrap_err(self) -> E {
Dec 18 09:41:52.756 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.756 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: method is never used: `expect`
Dec 18 09:41:52.757 INFO [stderr]   --> src/future.rs:50:5
Dec 18 09:41:52.757 INFO [stderr]    |
Dec 18 09:41:52.757 INFO [stderr] 50 |     fn expect(self, _msg: &str) -> T {
Dec 18 09:41:52.757 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.757 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: method is never used: `is_promised`
Dec 18 09:41:52.757 INFO [stderr]   --> src/future.rs:57:5
Dec 18 09:41:52.757 INFO [stderr]    |
Dec 18 09:41:52.757 INFO [stderr] 57 |     fn is_promised(&self) -> bool {
Dec 18 09:41:52.757 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.757 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: method is never used: `is_err`
Dec 18 09:41:52.757 INFO [stderr]   --> src/future.rs:64:5
Dec 18 09:41:52.757 INFO [stderr]    |
Dec 18 09:41:52.757 INFO [stderr] 64 |     fn is_err(&self) -> bool {
Dec 18 09:41:52.757 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.757 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: method is never used: `is_ok`
Dec 18 09:41:52.757 INFO [stderr]   --> src/future.rs:71:5
Dec 18 09:41:52.757 INFO [stderr]    |
Dec 18 09:41:52.757 INFO [stderr] 71 |     fn is_ok(&self) -> bool {
Dec 18 09:41:52.757 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.757 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: method is never used: `ok`
Dec 18 09:41:52.757 INFO [stderr]   --> src/future.rs:78:5
Dec 18 09:41:52.757 INFO [stderr]    |
Dec 18 09:41:52.757 INFO [stderr] 78 |     fn ok(self) -> Option<T> {
Dec 18 09:41:52.757 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.757 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: method is never used: `err`
Dec 18 09:41:52.757 INFO [stderr]   --> src/future.rs:85:5
Dec 18 09:41:52.757 INFO [stderr]    |
Dec 18 09:41:52.757 INFO [stderr] 85 |     fn err(self) -> Option<E> {
Dec 18 09:41:52.757 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.757 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: method is never used: `set_ok`
Dec 18 09:41:52.757 INFO [stderr]   --> src/future.rs:92:5
Dec 18 09:41:52.757 INFO [stderr]    |
Dec 18 09:41:52.757 INFO [stderr] 92 |     fn set_ok(&mut self, val: T) {
Dec 18 09:41:52.757 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.757 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: method is never used: `set_err`
Dec 18 09:41:52.757 INFO [stderr]   --> src/future.rs:97:5
Dec 18 09:41:52.757 INFO [stderr]    |
Dec 18 09:41:52.757 INFO [stderr] 97 |     fn set_err(&mut self, err: E) {
Dec 18 09:41:52.757 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.757 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: struct is never constructed: `Future`
Dec 18 09:41:52.757 INFO [stderr]    --> src/future.rs:104:1
Dec 18 09:41:52.757 INFO [stderr]     |
Dec 18 09:41:52.757 INFO [stderr] 104 | pub struct Future<T, E> {
Dec 18 09:41:52.757 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.757 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: method is never used: `promised`
Dec 18 09:41:52.757 INFO [stderr]    --> src/future.rs:112:5
Dec 18 09:41:52.757 INFO [stderr]     |
Dec 18 09:41:52.757 INFO [stderr] 112 |     pub fn promised() -> (Future<T, E>, Promise<T, E>) {
Dec 18 09:41:52.757 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.757 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: method is never used: `from_val`
Dec 18 09:41:52.757 INFO [stderr]    --> src/future.rs:119:5
Dec 18 09:41:52.757 INFO [stderr]     |
Dec 18 09:41:52.757 INFO [stderr] 119 |     pub fn from_val(val: T) -> Future<T, E> {
Dec 18 09:41:52.757 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.757 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: method is never used: `from_err`
Dec 18 09:41:52.757 INFO [stderr]    --> src/future.rs:124:5
Dec 18 09:41:52.757 INFO [stderr]     |
Dec 18 09:41:52.757 INFO [stderr] 124 |     pub fn from_err(err: E) -> Future<T, E> {
Dec 18 09:41:52.757 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.757 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: method is never used: `new`
Dec 18 09:41:52.757 INFO [stderr]    --> src/future.rs:128:5
Dec 18 09:41:52.757 INFO [stderr]     |
Dec 18 09:41:52.757 INFO [stderr] 128 |     fn new(inner: Rc<RefCell<FutureInner<T, E>>>) -> Future<T, E> {
Dec 18 09:41:52.757 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.757 INFO [stderr] 
Dec 18 09:41:52.757 INFO [stderr] warning: method is never used: `is_promised`
Dec 18 09:41:52.757 INFO [stderr]    --> src/future.rs:135:5
Dec 18 09:41:52.757 INFO [stderr]     |
Dec 18 09:41:52.757 INFO [stderr] 135 |     pub fn is_promised(&self) -> bool {
Dec 18 09:41:52.757 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.758 INFO [stderr] 
Dec 18 09:41:52.758 INFO [stderr] warning: method is never used: `is_ok`
Dec 18 09:41:52.758 INFO [stderr]    --> src/future.rs:141:5
Dec 18 09:41:52.758 INFO [stderr]     |
Dec 18 09:41:52.758 INFO [stderr] 141 |     pub fn is_ok(&self) -> bool {
Dec 18 09:41:52.758 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.758 INFO [stderr] 
Dec 18 09:41:52.758 INFO [stderr] warning: method is never used: `is_err`
Dec 18 09:41:52.758 INFO [stderr]    --> src/future.rs:146:5
Dec 18 09:41:52.758 INFO [stderr]     |
Dec 18 09:41:52.758 INFO [stderr] 146 |     pub fn is_err(&self) -> bool {
Dec 18 09:41:52.758 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.758 INFO [stderr] 
Dec 18 09:41:52.758 INFO [stderr] warning: method is never used: `err`
Dec 18 09:41:52.758 INFO [stderr]    --> src/future.rs:152:5
Dec 18 09:41:52.758 INFO [stderr]     |
Dec 18 09:41:52.758 INFO [stderr] 152 |     pub fn err(self) -> Option<E> {
Dec 18 09:41:52.758 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.758 INFO [stderr] 
Dec 18 09:41:52.758 INFO [stderr] warning: method is never used: `ok`
Dec 18 09:41:52.758 INFO [stderr]    --> src/future.rs:160:5
Dec 18 09:41:52.758 INFO [stderr]     |
Dec 18 09:41:52.758 INFO [stderr] 160 |     pub fn ok(self) -> Option<T> {
Dec 18 09:41:52.758 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.758 INFO [stderr] 
Dec 18 09:41:52.758 INFO [stderr] warning: method is never used: `unwrap_err`
Dec 18 09:41:52.758 INFO [stderr]    --> src/future.rs:169:5
Dec 18 09:41:52.758 INFO [stderr]     |
Dec 18 09:41:52.758 INFO [stderr] 169 |     pub fn unwrap_err(self) -> E {
Dec 18 09:41:52.758 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.758 INFO [stderr] 
Dec 18 09:41:52.758 INFO [stderr] warning: method is never used: `unwrap`
Dec 18 09:41:52.758 INFO [stderr]    --> src/future.rs:177:5
Dec 18 09:41:52.758 INFO [stderr]     |
Dec 18 09:41:52.758 INFO [stderr] 177 |     pub fn unwrap(self) -> T {
Dec 18 09:41:52.758 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.758 INFO [stderr] 
Dec 18 09:41:52.758 INFO [stderr] warning: struct is never constructed: `Promise`
Dec 18 09:41:52.758 INFO [stderr]    --> src/future.rs:188:1
Dec 18 09:41:52.758 INFO [stderr]     |
Dec 18 09:41:52.758 INFO [stderr] 188 | pub struct Promise<T, E> {
Dec 18 09:41:52.758 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.758 INFO [stderr] 
Dec 18 09:41:52.758 INFO [stderr] warning: method is never used: `new`
Dec 18 09:41:52.758 INFO [stderr]    --> src/future.rs:195:5
Dec 18 09:41:52.758 INFO [stderr]     |
Dec 18 09:41:52.758 INFO [stderr] 195 |     fn new(inner: Rc<RefCell<FutureInner<T, E>>>) -> Promise<T, E> {
Dec 18 09:41:52.758 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.758 INFO [stderr] 
Dec 18 09:41:52.758 INFO [stderr] warning: method is never used: `resolve`
Dec 18 09:41:52.758 INFO [stderr]    --> src/future.rs:201:5
Dec 18 09:41:52.758 INFO [stderr]     |
Dec 18 09:41:52.758 INFO [stderr] 201 |     pub fn resolve(self, res: Result<T, E>) {
Dec 18 09:41:52.758 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.758 INFO [stderr] 
Dec 18 09:41:52.769 INFO [stderr] warning: method is never used: `expect`
Dec 18 09:41:52.769 INFO [stderr]   --> src/future.rs:50:5
Dec 18 09:41:52.769 INFO [stderr]    |
Dec 18 09:41:52.769 INFO [stderr] 50 |     fn expect(self, _msg: &str) -> T {
Dec 18 09:41:52.769 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 09:41:52.769 INFO [stderr]    |
Dec 18 09:41:52.769 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 09:41:52.769 INFO [stderr] 
Dec 18 09:41:52.805 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
Dec 18 09:41:53.332 INFO running `"docker" "inspect" "536d367b684ebbc1e6508832b04abed15038347124334e9626bbcdb366cb3723"`
Dec 18 09:41:53.580 INFO running `"docker" "rm" "-f" "536d367b684ebbc1e6508832b04abed15038347124334e9626bbcdb366cb3723"`
Dec 18 09:41:53.822 INFO [stdout] 536d367b684ebbc1e6508832b04abed15038347124334e9626bbcdb366cb3723