Oct 13 01:44:03.553 INFO checking acsearle/barc against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 13 01:44:03.553 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-2/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/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 +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-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"`
Oct 13 01:44:03.984 INFO blam! 76bf5decef5a4843607ccf20fa720ce8ecd931785f3f8968ab41fad2a1c5e67b
Oct 13 01:44:03.993 INFO running `"docker" "start" "-a" "76bf5decef5a4843607ccf20fa720ce8ecd931785f3f8968ab41fad2a1c5e67b"`
Oct 13 01:44:05.253 INFO kablam! usermod: no changes
Oct 13 01:44:05.292 INFO kablam!     Checking barc v0.1.0 (/source)
Oct 13 01:44:06.192 INFO kablam! warning: method is never used: `set`
Oct 13 01:44:06.192 INFO kablam!    --> src/lib.rs:167:5
Oct 13 01:44:06.192 INFO kablam!     |
Oct 13 01:44:06.192 INFO kablam! 167 |     fn set(&mut self, count: usize, pointer: *mut T) {
Oct 13 01:44:06.192 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.192 INFO kablam!     |
Oct 13 01:44:06.192 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 13 01:44:06.192 INFO kablam! 
Oct 13 01:44:06.192 INFO kablam! warning: method is never used: `set_ptr`
Oct 13 01:44:06.192 INFO kablam!    --> src/lib.rs:176:5
Oct 13 01:44:06.192 INFO kablam!     |
Oct 13 01:44:06.192 INFO kablam! 176 |     fn set_ptr(&mut self, pointer: *mut T) {
Oct 13 01:44:06.192 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.192 INFO kablam! 
Oct 13 01:44:06.192 INFO kablam! warning: method is never used: `as_ref`
Oct 13 01:44:06.192 INFO kablam!    --> src/lib.rs:191:5
Oct 13 01:44:06.192 INFO kablam!     |
Oct 13 01:44:06.192 INFO kablam! 191 |     unsafe fn as_ref(&self) -> &T {
Oct 13 01:44:06.192 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.192 INFO kablam! 
Oct 13 01:44:06.192 INFO kablam! warning: method is never used: `as_mut`
Oct 13 01:44:06.192 INFO kablam!    --> src/lib.rs:195:5
Oct 13 01:44:06.192 INFO kablam!     |
Oct 13 01:44:06.192 INFO kablam! 195 |     unsafe fn as_mut(&mut self) -> &mut T {
Oct 13 01:44:06.192 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.192 INFO kablam! 
Oct 13 01:44:06.192 INFO kablam! warning: method is never used: `get_ptr`
Oct 13 01:44:06.192 INFO kablam!    --> src/lib.rs:282:5
Oct 13 01:44:06.192 INFO kablam!     |
Oct 13 01:44:06.192 INFO kablam! 282 |     fn get_ptr(&self) -> *mut T {
Oct 13 01:44:06.192 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.192 INFO kablam! 
Oct 13 01:44:06.192 INFO kablam! warning: method is never used: `set_ptr`
Oct 13 01:44:06.192 INFO kablam!    --> src/lib.rs:287:5
Oct 13 01:44:06.192 INFO kablam!     |
Oct 13 01:44:06.192 INFO kablam! 287 |     fn set_ptr(&mut self, pointer: NonNull<T>) {
Oct 13 01:44:06.192 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.192 INFO kablam! 
Oct 13 01:44:06.192 INFO kablam! warning: method is never used: `into_inner`
Oct 13 01:44:06.192 INFO kablam!    --> src/lib.rs:349:5
Oct 13 01:44:06.192 INFO kablam!     |
Oct 13 01:44:06.192 INFO kablam! 349 |     fn into_inner(self) -> CountedPtr<T> {
Oct 13 01:44:06.192 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.192 INFO kablam! 
Oct 13 01:44:06.192 INFO kablam! warning: method is never used: `store`
Oct 13 01:44:06.192 INFO kablam!    --> src/lib.rs:362:5
Oct 13 01:44:06.192 INFO kablam!     |
Oct 13 01:44:06.192 INFO kablam! 362 |     fn store(&self, p: CountedPtr<T>, order: Ordering) {
Oct 13 01:44:06.192 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.193 INFO kablam! 
Oct 13 01:44:06.193 INFO kablam! warning: method is never used: `compare_and_swap`
Oct 13 01:44:06.193 INFO kablam!    --> src/lib.rs:370:5
Oct 13 01:44:06.193 INFO kablam!     |
Oct 13 01:44:06.193 INFO kablam! 370 | /     fn compare_and_swap(
Oct 13 01:44:06.193 INFO kablam! 371 | |         &self,
Oct 13 01:44:06.193 INFO kablam! 372 | |         current: CountedPtr<T>,
Oct 13 01:44:06.193 INFO kablam! 373 | |         new: CountedPtr<T>,
Oct 13 01:44:06.193 INFO kablam! ...   |
Oct 13 01:44:06.193 INFO kablam! 382 | |         )
Oct 13 01:44:06.193 INFO kablam! 383 | |     }
Oct 13 01:44:06.193 INFO kablam!     | |_____^
Oct 13 01:44:06.193 INFO kablam! 
Oct 13 01:44:06.193 INFO kablam! warning: method is never used: `compare_exchange`
Oct 13 01:44:06.193 INFO kablam!    --> src/lib.rs:385:5
Oct 13 01:44:06.193 INFO kablam!     |
Oct 13 01:44:06.193 INFO kablam! 385 | /     fn compare_exchange(
Oct 13 01:44:06.193 INFO kablam! 386 | |         &self,
Oct 13 01:44:06.193 INFO kablam! 387 | |         current: CountedPtr<T>,
Oct 13 01:44:06.193 INFO kablam! 388 | |         new: CountedPtr<T>,
Oct 13 01:44:06.193 INFO kablam! ...   |
Oct 13 01:44:06.193 INFO kablam! 400 | |         }
Oct 13 01:44:06.193 INFO kablam! 401 | |     }
Oct 13 01:44:06.193 INFO kablam!     | |_____^
Oct 13 01:44:06.193 INFO kablam! 
Oct 13 01:44:06.193 INFO kablam! warning: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable
Oct 13 01:44:06.193 INFO kablam!   --> src/lib.rs:83:12
Oct 13 01:44:06.193 INFO kablam!    |
Oct 13 01:44:06.193 INFO kablam! 83 | #![feature(extern_prelude)]
Oct 13 01:44:06.193 INFO kablam!    |            ^^^^^^^^^^^^^^
Oct 13 01:44:06.193 INFO kablam!    |
Oct 13 01:44:06.193 INFO kablam!    = note: #[warn(stable_features)] on by default
Oct 13 01:44:06.193 INFO kablam! 
Oct 13 01:44:06.492 INFO kablam! warning: unused variable: `nest`
Oct 13 01:44:06.492 INFO kablam!     --> src/lib.rs:2223:17
Oct 13 01:44:06.492 INFO kablam!      |
Oct 13 01:44:06.492 INFO kablam! 2223 |             let nest = Nest::new();
Oct 13 01:44:06.492 INFO kablam!      |                 ^^^^ help: consider using `_nest` instead
Oct 13 01:44:06.492 INFO kablam!      |
Oct 13 01:44:06.492 INFO kablam!      = note: #[warn(unused_variables)] on by default
Oct 13 01:44:06.492 INFO kablam! 
Oct 13 01:44:06.492 INFO kablam! warning: unused variable: `b`
Oct 13 01:44:06.492 INFO kablam!     --> src/lib.rs:2281:17
Oct 13 01:44:06.492 INFO kablam!      |
Oct 13 01:44:06.492 INFO kablam! 2281 |             let b = a.clone();
Oct 13 01:44:06.492 INFO kablam!      |                 ^ help: consider using `_b` instead
Oct 13 01:44:06.492 INFO kablam! 
Oct 13 01:44:06.492 INFO kablam! warning: unused variable: `c`
Oct 13 01:44:06.492 INFO kablam!     --> src/lib.rs:2283:17
Oct 13 01:44:06.492 INFO kablam!      |
Oct 13 01:44:06.492 INFO kablam! 2283 |             let c = WeightedArc::downgrade(&a);
Oct 13 01:44:06.492 INFO kablam!      |                 ^ help: consider using `_c` instead
Oct 13 01:44:06.492 INFO kablam! 
Oct 13 01:44:06.492 INFO kablam! warning: unused variable: `b`
Oct 13 01:44:06.492 INFO kablam!     --> src/lib.rs:2303:21
Oct 13 01:44:06.492 INFO kablam!      |
Oct 13 01:44:06.492 INFO kablam! 2303 |             let mut b = a.clone();
Oct 13 01:44:06.492 INFO kablam!      |                     ^ help: consider using `_b` instead
Oct 13 01:44:06.492 INFO kablam! 
Oct 13 01:44:06.492 INFO kablam! warning: unused variable: `a`
Oct 13 01:44:06.492 INFO kablam!     --> src/lib.rs:2319:17
Oct 13 01:44:06.492 INFO kablam!      |
Oct 13 01:44:06.492 INFO kablam! 2319 |             let a = AtomicOptionWeightedArc::new(Some(WeightedArc::new(nest.hatch(99))));
Oct 13 01:44:06.492 INFO kablam!      |                 ^ help: consider using `_a` instead
Oct 13 01:44:06.492 INFO kablam! 
Oct 13 01:44:06.634 INFO kablam! warning: variable does not need to be mutable
Oct 13 01:44:06.634 INFO kablam!     --> src/lib.rs:2303:17
Oct 13 01:44:06.634 INFO kablam!      |
Oct 13 01:44:06.634 INFO kablam! 2303 |             let mut b = a.clone();
Oct 13 01:44:06.634 INFO kablam!      |                 ----^
Oct 13 01:44:06.634 INFO kablam!      |                 |
Oct 13 01:44:06.634 INFO kablam!      |                 help: remove this `mut`
Oct 13 01:44:06.634 INFO kablam!      |
Oct 13 01:44:06.634 INFO kablam!      = note: #[warn(unused_mut)] on by default
Oct 13 01:44:06.634 INFO kablam! 
Oct 13 01:44:06.688 INFO kablam! warning: method is never used: `set`
Oct 13 01:44:06.688 INFO kablam!    --> src/lib.rs:167:5
Oct 13 01:44:06.688 INFO kablam!     |
Oct 13 01:44:06.688 INFO kablam! 167 |     fn set(&mut self, count: usize, pointer: *mut T) {
Oct 13 01:44:06.688 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.688 INFO kablam!     |
Oct 13 01:44:06.688 INFO kablam!     = note: #[warn(dead_code)] on by default
Oct 13 01:44:06.688 INFO kablam! 
Oct 13 01:44:06.688 INFO kablam! warning: method is never used: `set_ptr`
Oct 13 01:44:06.688 INFO kablam!    --> src/lib.rs:176:5
Oct 13 01:44:06.688 INFO kablam!     |
Oct 13 01:44:06.688 INFO kablam! 176 |     fn set_ptr(&mut self, pointer: *mut T) {
Oct 13 01:44:06.688 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.688 INFO kablam! 
Oct 13 01:44:06.688 INFO kablam! warning: method is never used: `as_ref`
Oct 13 01:44:06.688 INFO kablam!    --> src/lib.rs:191:5
Oct 13 01:44:06.688 INFO kablam!     |
Oct 13 01:44:06.688 INFO kablam! 191 |     unsafe fn as_ref(&self) -> &T {
Oct 13 01:44:06.688 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.688 INFO kablam! 
Oct 13 01:44:06.688 INFO kablam! warning: method is never used: `as_mut`
Oct 13 01:44:06.688 INFO kablam!    --> src/lib.rs:195:5
Oct 13 01:44:06.688 INFO kablam!     |
Oct 13 01:44:06.688 INFO kablam! 195 |     unsafe fn as_mut(&mut self) -> &mut T {
Oct 13 01:44:06.688 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.688 INFO kablam! 
Oct 13 01:44:06.688 INFO kablam! warning: method is never used: `get_ptr`
Oct 13 01:44:06.688 INFO kablam!    --> src/lib.rs:282:5
Oct 13 01:44:06.688 INFO kablam!     |
Oct 13 01:44:06.688 INFO kablam! 282 |     fn get_ptr(&self) -> *mut T {
Oct 13 01:44:06.688 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.688 INFO kablam! 
Oct 13 01:44:06.688 INFO kablam! warning: method is never used: `set_ptr`
Oct 13 01:44:06.688 INFO kablam!    --> src/lib.rs:287:5
Oct 13 01:44:06.688 INFO kablam!     |
Oct 13 01:44:06.688 INFO kablam! 287 |     fn set_ptr(&mut self, pointer: NonNull<T>) {
Oct 13 01:44:06.688 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.688 INFO kablam! 
Oct 13 01:44:06.688 INFO kablam! warning: method is never used: `into_inner`
Oct 13 01:44:06.688 INFO kablam!    --> src/lib.rs:349:5
Oct 13 01:44:06.688 INFO kablam!     |
Oct 13 01:44:06.688 INFO kablam! 349 |     fn into_inner(self) -> CountedPtr<T> {
Oct 13 01:44:06.688 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.688 INFO kablam! 
Oct 13 01:44:06.688 INFO kablam! warning: method is never used: `store`
Oct 13 01:44:06.688 INFO kablam!    --> src/lib.rs:362:5
Oct 13 01:44:06.688 INFO kablam!     |
Oct 13 01:44:06.689 INFO kablam! 362 |     fn store(&self, p: CountedPtr<T>, order: Ordering) {
Oct 13 01:44:06.689 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:06.689 INFO kablam! 
Oct 13 01:44:06.689 INFO kablam! warning: method is never used: `compare_and_swap`
Oct 13 01:44:06.689 INFO kablam!    --> src/lib.rs:370:5
Oct 13 01:44:06.689 INFO kablam!     |
Oct 13 01:44:06.689 INFO kablam! 370 | /     fn compare_and_swap(
Oct 13 01:44:06.689 INFO kablam! 371 | |         &self,
Oct 13 01:44:06.689 INFO kablam! 372 | |         current: CountedPtr<T>,
Oct 13 01:44:06.689 INFO kablam! 373 | |         new: CountedPtr<T>,
Oct 13 01:44:06.689 INFO kablam! ...   |
Oct 13 01:44:06.689 INFO kablam! 382 | |         )
Oct 13 01:44:06.689 INFO kablam! 383 | |     }
Oct 13 01:44:06.689 INFO kablam!     | |_____^
Oct 13 01:44:06.689 INFO kablam! 
Oct 13 01:44:06.689 INFO kablam! warning: method is never used: `compare_exchange`
Oct 13 01:44:06.689 INFO kablam!    --> src/lib.rs:385:5
Oct 13 01:44:06.689 INFO kablam!     |
Oct 13 01:44:06.689 INFO kablam! 385 | /     fn compare_exchange(
Oct 13 01:44:06.689 INFO kablam! 386 | |         &self,
Oct 13 01:44:06.689 INFO kablam! 387 | |         current: CountedPtr<T>,
Oct 13 01:44:06.689 INFO kablam! 388 | |         new: CountedPtr<T>,
Oct 13 01:44:06.689 INFO kablam! ...   |
Oct 13 01:44:06.689 INFO kablam! 400 | |         }
Oct 13 01:44:06.689 INFO kablam! 401 | |     }
Oct 13 01:44:06.689 INFO kablam!     | |_____^
Oct 13 01:44:06.689 INFO kablam! 
Oct 13 01:44:06.689 INFO kablam! warning: method is never used: `check`
Oct 13 01:44:06.689 INFO kablam!     --> src/lib.rs:2175:9
Oct 13 01:44:06.689 INFO kablam!      |
Oct 13 01:44:06.689 INFO kablam! 2175 |         fn check(&self) {
Oct 13 01:44:06.689 INFO kablam!      |         ^^^^^^^^^^^^^^^
Oct 13 01:44:06.689 INFO kablam! 
Oct 13 01:44:06.689 INFO kablam! warning: the feature `extern_prelude` has been stable since 1.30.0 and no longer requires an attribute to enable
Oct 13 01:44:06.689 INFO kablam!   --> src/lib.rs:83:12
Oct 13 01:44:06.689 INFO kablam!    |
Oct 13 01:44:06.689 INFO kablam! 83 | #![feature(extern_prelude)]
Oct 13 01:44:06.689 INFO kablam!    |            ^^^^^^^^^^^^^^
Oct 13 01:44:06.689 INFO kablam!    |
Oct 13 01:44:06.689 INFO kablam!    = note: #[warn(stable_features)] on by default
Oct 13 01:44:06.689 INFO kablam! 
Oct 13 01:44:06.928 INFO kablam! warning: unreachable statement
Oct 13 01:44:06.928 INFO kablam!    --> src/main.rs:203:5
Oct 13 01:44:06.928 INFO kablam!     |
Oct 13 01:44:06.928 INFO kablam! 203 | /     {
Oct 13 01:44:06.928 INFO kablam! 204 | |         // Stress-test swaps
Oct 13 01:44:06.928 INFO kablam! 205 | |
Oct 13 01:44:06.928 INFO kablam! 206 | |         let a = 100;
Oct 13 01:44:06.928 INFO kablam! ...   |
Oct 13 01:44:06.928 INFO kablam! 243 | |
Oct 13 01:44:06.928 INFO kablam! 244 | |     }
Oct 13 01:44:06.928 INFO kablam!     | |_____^
Oct 13 01:44:06.928 INFO kablam!     |
Oct 13 01:44:06.928 INFO kablam!     = note: #[warn(unreachable_code)] on by default
Oct 13 01:44:06.928 INFO kablam! 
Oct 13 01:44:06.933 INFO kablam! warning: unreachable statement
Oct 13 01:44:06.933 INFO kablam!    --> src/main.rs:203:5
Oct 13 01:44:06.933 INFO kablam!     |
Oct 13 01:44:06.933 INFO kablam! 203 | /     {
Oct 13 01:44:06.933 INFO kablam! 204 | |         // Stress-test swaps
Oct 13 01:44:06.933 INFO kablam! 205 | |
Oct 13 01:44:06.933 INFO kablam! 206 | |         let a = 100;
Oct 13 01:44:06.933 INFO kablam! ...   |
Oct 13 01:44:06.933 INFO kablam! 243 | |
Oct 13 01:44:06.933 INFO kablam! 244 | |     }
Oct 13 01:44:06.933 INFO kablam!     | |_____^
Oct 13 01:44:06.933 INFO kablam!     |
Oct 13 01:44:06.933 INFO kablam!     = note: #[warn(unreachable_code)] on by default
Oct 13 01:44:06.933 INFO kablam! 
Oct 13 01:44:07.008 INFO kablam! warning: method is never used: `into_inner`
Oct 13 01:44:07.008 INFO kablam!   --> src/main.rs:35:5
Oct 13 01:44:07.008 INFO kablam!    |
Oct 13 01:44:07.008 INFO kablam! 35 |     fn into_inner(self) -> T {
Oct 13 01:44:07.008 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:07.008 INFO kablam!    |
Oct 13 01:44:07.008 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 01:44:07.008 INFO kablam! 
Oct 13 01:44:07.028 INFO kablam! warning: method is never used: `into_inner`
Oct 13 01:44:07.028 INFO kablam!   --> src/main.rs:35:5
Oct 13 01:44:07.028 INFO kablam!    |
Oct 13 01:44:07.028 INFO kablam! 35 |     fn into_inner(self) -> T {
Oct 13 01:44:07.028 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 01:44:07.028 INFO kablam!    |
Oct 13 01:44:07.028 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 01:44:07.028 INFO kablam! 
Oct 13 01:44:07.057 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.79s
Oct 13 01:44:07.059 INFO kablam! su: No module specific data is present
Oct 13 01:44:07.744 INFO running `"docker" "rm" "-f" "76bf5decef5a4843607ccf20fa720ce8ecd931785f3f8968ab41fad2a1c5e67b"`
Oct 13 01:44:08.036 INFO blam! 76bf5decef5a4843607ccf20fa720ce8ecd931785f3f8968ab41fad2a1c5e67b