Sep 10 07:02:33.376 INFO checking urchin-0.1.1 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 07:02:33.376 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 07:02:33.376 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-5/try#3a2610c2a16575649896925631bf8cec4f4b1961:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 07:02:33.585 INFO blam! 3d75e8354c8e20001f7767657a81ae64a5e6272aaef1628362fb262647d0461e
Sep 10 07:02:33.587 INFO running `"docker" "start" "-a" "3d75e8354c8e20001f7767657a81ae64a5e6272aaef1628362fb262647d0461e"`
Sep 10 07:02:35.006 INFO kablam! usermod: no changes
Sep 10 07:02:35.062 INFO kablam!     Checking urchin v0.1.1 (file:///source)
Sep 10 07:02:35.382 INFO kablam! warning: enum is never used: `FutureState`
Sep 10 07:02:35.382 INFO kablam!  --> src/future.rs:6:1
Sep 10 07:02:35.382 INFO kablam!   |
Sep 10 07:02:35.382 INFO kablam! 6 | enum FutureState<T, E> {
Sep 10 07:02:35.382 INFO kablam!   | ^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.382 INFO kablam!   |
Sep 10 07:02:35.382 INFO kablam!   = note: #[warn(dead_code)] on by default
Sep 10 07:02:35.383 INFO kablam! 
Sep 10 07:02:35.383 INFO kablam! warning: struct is never constructed: `FutureInner`
Sep 10 07:02:35.383 INFO kablam!   --> src/future.rs:13:1
Sep 10 07:02:35.383 INFO kablam!    |
Sep 10 07:02:35.383 INFO kablam! 13 | pub struct FutureInner<T, E> {
Sep 10 07:02:35.383 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.383 INFO kablam! 
Sep 10 07:02:35.383 INFO kablam! warning: method is never used: `promised`
Sep 10 07:02:35.383 INFO kablam!   --> src/future.rs:18:5
Sep 10 07:02:35.383 INFO kablam!    |
Sep 10 07:02:35.383 INFO kablam! 18 |     fn promised() -> FutureInner<T, E> {
Sep 10 07:02:35.383 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.383 INFO kablam! 
Sep 10 07:02:35.383 INFO kablam! warning: method is never used: `from_val`
Sep 10 07:02:35.383 INFO kablam!   --> src/future.rs:24:5
Sep 10 07:02:35.383 INFO kablam!    |
Sep 10 07:02:35.383 INFO kablam! 24 |     fn from_val(val: T) -> FutureInner<T, E> {
Sep 10 07:02:35.383 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.383 INFO kablam! 
Sep 10 07:02:35.383 INFO kablam! warning: method is never used: `from_err`
Sep 10 07:02:35.383 INFO kablam!   --> src/future.rs:30:5
Sep 10 07:02:35.383 INFO kablam!    |
Sep 10 07:02:35.383 INFO kablam! 30 |     fn from_err(err: E) -> FutureInner<T, E> {
Sep 10 07:02:35.383 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.383 INFO kablam! 
Sep 10 07:02:35.383 INFO kablam! warning: method is never used: `unwrap`
Sep 10 07:02:35.383 INFO kablam!   --> src/future.rs:36:5
Sep 10 07:02:35.383 INFO kablam!    |
Sep 10 07:02:35.383 INFO kablam! 36 |     fn unwrap(self) -> T {
Sep 10 07:02:35.383 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.383 INFO kablam! 
Sep 10 07:02:35.383 INFO kablam! warning: method is never used: `unwrap_err`
Sep 10 07:02:35.383 INFO kablam!   --> src/future.rs:43:5
Sep 10 07:02:35.383 INFO kablam!    |
Sep 10 07:02:35.383 INFO kablam! 43 |     fn unwrap_err(self) -> E {
Sep 10 07:02:35.383 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.383 INFO kablam! 
Sep 10 07:02:35.383 INFO kablam! warning: method is never used: `expect`
Sep 10 07:02:35.383 INFO kablam!   --> src/future.rs:50:5
Sep 10 07:02:35.383 INFO kablam!    |
Sep 10 07:02:35.383 INFO kablam! 50 |     fn expect(self, _msg: &str) -> T {
Sep 10 07:02:35.383 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.383 INFO kablam! 
Sep 10 07:02:35.383 INFO kablam! warning: method is never used: `is_promised`
Sep 10 07:02:35.383 INFO kablam!   --> src/future.rs:57:5
Sep 10 07:02:35.383 INFO kablam!    |
Sep 10 07:02:35.383 INFO kablam! 57 |     fn is_promised(&self) -> bool {
Sep 10 07:02:35.383 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.383 INFO kablam! 
Sep 10 07:02:35.383 INFO kablam! warning: method is never used: `is_err`
Sep 10 07:02:35.383 INFO kablam!   --> src/future.rs:64:5
Sep 10 07:02:35.383 INFO kablam!    |
Sep 10 07:02:35.383 INFO kablam! 64 |     fn is_err(&self) -> bool {
Sep 10 07:02:35.383 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.383 INFO kablam! 
Sep 10 07:02:35.383 INFO kablam! warning: method is never used: `is_ok`
Sep 10 07:02:35.383 INFO kablam!   --> src/future.rs:71:5
Sep 10 07:02:35.383 INFO kablam!    |
Sep 10 07:02:35.383 INFO kablam! 71 |     fn is_ok(&self) -> bool {
Sep 10 07:02:35.383 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.383 INFO kablam! 
Sep 10 07:02:35.383 INFO kablam! warning: method is never used: `ok`
Sep 10 07:02:35.383 INFO kablam!   --> src/future.rs:78:5
Sep 10 07:02:35.383 INFO kablam!    |
Sep 10 07:02:35.383 INFO kablam! 78 |     fn ok(self) -> Option<T> {
Sep 10 07:02:35.383 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.384 INFO kablam! 
Sep 10 07:02:35.384 INFO kablam! warning: method is never used: `err`
Sep 10 07:02:35.384 INFO kablam!   --> src/future.rs:85:5
Sep 10 07:02:35.384 INFO kablam!    |
Sep 10 07:02:35.384 INFO kablam! 85 |     fn err(self) -> Option<E> {
Sep 10 07:02:35.384 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.384 INFO kablam! 
Sep 10 07:02:35.384 INFO kablam! warning: method is never used: `set_ok`
Sep 10 07:02:35.384 INFO kablam!   --> src/future.rs:92:5
Sep 10 07:02:35.384 INFO kablam!    |
Sep 10 07:02:35.384 INFO kablam! 92 |     fn set_ok(&mut self, val: T) {
Sep 10 07:02:35.384 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.384 INFO kablam! 
Sep 10 07:02:35.384 INFO kablam! warning: method is never used: `set_err`
Sep 10 07:02:35.384 INFO kablam!   --> src/future.rs:97:5
Sep 10 07:02:35.384 INFO kablam!    |
Sep 10 07:02:35.384 INFO kablam! 97 |     fn set_err(&mut self, err: E) {
Sep 10 07:02:35.384 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.384 INFO kablam! 
Sep 10 07:02:35.384 INFO kablam! warning: struct is never constructed: `Future`
Sep 10 07:02:35.384 INFO kablam!    --> src/future.rs:104:1
Sep 10 07:02:35.384 INFO kablam!     |
Sep 10 07:02:35.384 INFO kablam! 104 | pub struct Future<T, E> {
Sep 10 07:02:35.384 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.384 INFO kablam! 
Sep 10 07:02:35.384 INFO kablam! warning: method is never used: `promised`
Sep 10 07:02:35.384 INFO kablam!    --> src/future.rs:112:5
Sep 10 07:02:35.384 INFO kablam!     |
Sep 10 07:02:35.384 INFO kablam! 112 |     pub fn promised() -> (Future<T, E>, Promise<T, E>) {
Sep 10 07:02:35.384 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.384 INFO kablam! 
Sep 10 07:02:35.384 INFO kablam! warning: method is never used: `from_val`
Sep 10 07:02:35.384 INFO kablam!    --> src/future.rs:119:5
Sep 10 07:02:35.384 INFO kablam!     |
Sep 10 07:02:35.384 INFO kablam! 119 |     pub fn from_val(val: T) -> Future<T, E> {
Sep 10 07:02:35.384 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.384 INFO kablam! 
Sep 10 07:02:35.384 INFO kablam! warning: method is never used: `from_err`
Sep 10 07:02:35.384 INFO kablam!    --> src/future.rs:124:5
Sep 10 07:02:35.384 INFO kablam!     |
Sep 10 07:02:35.384 INFO kablam! 124 |     pub fn from_err(err: E) -> Future<T, E> {
Sep 10 07:02:35.384 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.384 INFO kablam! 
Sep 10 07:02:35.384 INFO kablam! warning: method is never used: `new`
Sep 10 07:02:35.384 INFO kablam!    --> src/future.rs:128:5
Sep 10 07:02:35.384 INFO kablam!     |
Sep 10 07:02:35.384 INFO kablam! 128 |     fn new(inner: Rc<RefCell<FutureInner<T, E>>>) -> Future<T, E> {
Sep 10 07:02:35.384 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.384 INFO kablam! 
Sep 10 07:02:35.384 INFO kablam! warning: method is never used: `is_promised`
Sep 10 07:02:35.384 INFO kablam!    --> src/future.rs:135:5
Sep 10 07:02:35.384 INFO kablam!     |
Sep 10 07:02:35.384 INFO kablam! 135 |     pub fn is_promised(&self) -> bool {
Sep 10 07:02:35.384 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.384 INFO kablam! 
Sep 10 07:02:35.384 INFO kablam! warning: method is never used: `is_ok`
Sep 10 07:02:35.384 INFO kablam!    --> src/future.rs:141:5
Sep 10 07:02:35.384 INFO kablam!     |
Sep 10 07:02:35.384 INFO kablam! 141 |     pub fn is_ok(&self) -> bool {
Sep 10 07:02:35.384 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.384 INFO kablam! 
Sep 10 07:02:35.384 INFO kablam! warning: method is never used: `is_err`
Sep 10 07:02:35.384 INFO kablam!    --> src/future.rs:146:5
Sep 10 07:02:35.384 INFO kablam!     |
Sep 10 07:02:35.384 INFO kablam! 146 |     pub fn is_err(&self) -> bool {
Sep 10 07:02:35.384 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.384 INFO kablam! 
Sep 10 07:02:35.384 INFO kablam! warning: method is never used: `err`
Sep 10 07:02:35.384 INFO kablam!    --> src/future.rs:152:5
Sep 10 07:02:35.384 INFO kablam!     |
Sep 10 07:02:35.384 INFO kablam! 152 |     pub fn err(self) -> Option<E> {
Sep 10 07:02:35.385 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.385 INFO kablam! 
Sep 10 07:02:35.385 INFO kablam! warning: method is never used: `ok`
Sep 10 07:02:35.385 INFO kablam!    --> src/future.rs:160:5
Sep 10 07:02:35.385 INFO kablam!     |
Sep 10 07:02:35.385 INFO kablam! 160 |     pub fn ok(self) -> Option<T> {
Sep 10 07:02:35.385 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.385 INFO kablam! 
Sep 10 07:02:35.385 INFO kablam! warning: method is never used: `unwrap_err`
Sep 10 07:02:35.385 INFO kablam!    --> src/future.rs:169:5
Sep 10 07:02:35.385 INFO kablam!     |
Sep 10 07:02:35.385 INFO kablam! 169 |     pub fn unwrap_err(self) -> E {
Sep 10 07:02:35.385 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.385 INFO kablam! 
Sep 10 07:02:35.385 INFO kablam! warning: method is never used: `unwrap`
Sep 10 07:02:35.385 INFO kablam!    --> src/future.rs:177:5
Sep 10 07:02:35.385 INFO kablam!     |
Sep 10 07:02:35.385 INFO kablam! 177 |     pub fn unwrap(self) -> T {
Sep 10 07:02:35.385 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.385 INFO kablam! 
Sep 10 07:02:35.385 INFO kablam! warning: struct is never constructed: `Promise`
Sep 10 07:02:35.385 INFO kablam!    --> src/future.rs:188:1
Sep 10 07:02:35.385 INFO kablam!     |
Sep 10 07:02:35.385 INFO kablam! 188 | pub struct Promise<T, E> {
Sep 10 07:02:35.385 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.385 INFO kablam! 
Sep 10 07:02:35.385 INFO kablam! warning: method is never used: `new`
Sep 10 07:02:35.385 INFO kablam!    --> src/future.rs:195:5
Sep 10 07:02:35.385 INFO kablam!     |
Sep 10 07:02:35.385 INFO kablam! 195 |     fn new(inner: Rc<RefCell<FutureInner<T, E>>>) -> Promise<T, E> {
Sep 10 07:02:35.385 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.385 INFO kablam! 
Sep 10 07:02:35.385 INFO kablam! warning: method is never used: `resolve`
Sep 10 07:02:35.385 INFO kablam!    --> src/future.rs:201:5
Sep 10 07:02:35.385 INFO kablam!     |
Sep 10 07:02:35.385 INFO kablam! 201 |     pub fn resolve(self, res: Result<T, E>) {
Sep 10 07:02:35.385 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.385 INFO kablam! 
Sep 10 07:02:35.574 INFO kablam! warning: method is never used: `expect`
Sep 10 07:02:35.574 INFO kablam!   --> src/future.rs:50:5
Sep 10 07:02:35.574 INFO kablam!    |
Sep 10 07:02:35.575 INFO kablam! 50 |     fn expect(self, _msg: &str) -> T {
Sep 10 07:02:35.575 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 07:02:35.575 INFO kablam!    |
Sep 10 07:02:35.575 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 10 07:02:35.575 INFO kablam! 
Sep 10 07:02:35.634 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
Sep 10 07:02:35.642 INFO kablam! su: No module specific data is present
Sep 10 07:02:36.330 INFO running `"docker" "rm" "-f" "3d75e8354c8e20001f7767657a81ae64a5e6272aaef1628362fb262647d0461e"`
Sep 10 07:02:36.450 INFO blam! 3d75e8354c8e20001f7767657a81ae64a5e6272aaef1628362fb262647d0461e