Sep 05 23:55:06.447 INFO checking slab_allocator-0.3.3 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 05 23:55:06.447 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 05 23:55:06.447 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-5/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 05 23:55:06.659 INFO blam! 2043cede2a9a81a1d8302220be1f943de7d34f16e417afd7670992982b6954de
Sep 05 23:55:06.661 INFO running `"docker" "start" "-a" "2043cede2a9a81a1d8302220be1f943de7d34f16e417afd7670992982b6954de"`
Sep 05 23:55:08.393 INFO kablam! usermod: no changes
Sep 05 23:55:08.506 INFO kablam!     Checking spin v0.4.9
Sep 05 23:55:08.868 INFO kablam!     Checking linked_list_allocator v0.6.3
Sep 05 23:55:09.124 INFO kablam!     Checking slab_allocator v0.3.3 (file:///source)
Sep 05 23:55:09.348 INFO kablam! warning: method is never used: `used_blocks`
Sep 05 23:55:09.348 INFO kablam!   --> src/slab.rs:18:5
Sep 05 23:55:09.348 INFO kablam!    |
Sep 05 23:55:09.348 INFO kablam! 18 |     pub fn used_blocks(&self) -> usize {
Sep 05 23:55:09.348 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 05 23:55:09.348 INFO kablam!    |
Sep 05 23:55:09.348 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 05 23:55:09.348 INFO kablam! 
Sep 05 23:55:09.348 INFO kablam! warning: method is never used: `len`
Sep 05 23:55:09.348 INFO kablam!   --> src/slab.rs:65:5
Sep 05 23:55:09.348 INFO kablam!    |
Sep 05 23:55:09.348 INFO kablam! 65 |     fn len(&self) -> usize {
Sep 05 23:55:09.348 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^
Sep 05 23:55:09.348 INFO kablam! 
Sep 05 23:55:09.348 INFO kablam! warning: method is never used: `is_empty`
Sep 05 23:55:09.348 INFO kablam!   --> src/slab.rs:83:5
Sep 05 23:55:09.348 INFO kablam!    |
Sep 05 23:55:09.348 INFO kablam! 83 |     fn is_empty(&self) -> bool {
Sep 05 23:55:09.348 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 05 23:55:09.348 INFO kablam! 
Sep 05 23:55:09.348 INFO kablam! warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
Sep 05 23:55:09.348 INFO kablam!  --> src/lib.rs:2:12
Sep 05 23:55:09.348 INFO kablam!   |
Sep 05 23:55:09.348 INFO kablam! 2 | #![feature(attr_literals)]
Sep 05 23:55:09.348 INFO kablam!   |            ^^^^^^^^^^^^^
Sep 05 23:55:09.348 INFO kablam!   |
Sep 05 23:55:09.348 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 05 23:55:09.348 INFO kablam! 
Sep 05 23:55:09.348 INFO kablam! warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
Sep 05 23:55:09.348 INFO kablam!  --> src/lib.rs:4:12
Sep 05 23:55:09.348 INFO kablam!   |
Sep 05 23:55:09.348 INFO kablam! 4 | #![feature(pointer_methods)]
Sep 05 23:55:09.348 INFO kablam!   |            ^^^^^^^^^^^^^^^
Sep 05 23:55:09.348 INFO kablam! 
Sep 05 23:55:09.626 INFO kablam! warning: method is never used: `used_blocks`
Sep 05 23:55:09.626 INFO kablam!   --> src/slab.rs:18:5
Sep 05 23:55:09.626 INFO kablam!    |
Sep 05 23:55:09.626 INFO kablam! 18 |     pub fn used_blocks(&self) -> usize {
Sep 05 23:55:09.626 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 05 23:55:09.626 INFO kablam!    |
Sep 05 23:55:09.626 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 05 23:55:09.626 INFO kablam! 
Sep 05 23:55:09.626 INFO kablam! warning: method is never used: `len`
Sep 05 23:55:09.626 INFO kablam!   --> src/slab.rs:65:5
Sep 05 23:55:09.626 INFO kablam!    |
Sep 05 23:55:09.626 INFO kablam! 65 |     fn len(&self) -> usize {
Sep 05 23:55:09.626 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^
Sep 05 23:55:09.626 INFO kablam! 
Sep 05 23:55:09.626 INFO kablam! warning: method is never used: `is_empty`
Sep 05 23:55:09.626 INFO kablam!   --> src/slab.rs:83:5
Sep 05 23:55:09.626 INFO kablam!    |
Sep 05 23:55:09.626 INFO kablam! 83 |     fn is_empty(&self) -> bool {
Sep 05 23:55:09.626 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 05 23:55:09.626 INFO kablam! 
Sep 05 23:55:09.626 INFO kablam! warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
Sep 05 23:55:09.626 INFO kablam!  --> src/lib.rs:2:12
Sep 05 23:55:09.626 INFO kablam!   |
Sep 05 23:55:09.626 INFO kablam! 2 | #![feature(attr_literals)]
Sep 05 23:55:09.626 INFO kablam!   |            ^^^^^^^^^^^^^
Sep 05 23:55:09.626 INFO kablam!   |
Sep 05 23:55:09.626 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 05 23:55:09.626 INFO kablam! 
Sep 05 23:55:09.626 INFO kablam! warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
Sep 05 23:55:09.626 INFO kablam!  --> src/lib.rs:4:12
Sep 05 23:55:09.626 INFO kablam!   |
Sep 05 23:55:09.626 INFO kablam! 4 | #![feature(pointer_methods)]
Sep 05 23:55:09.626 INFO kablam!   |            ^^^^^^^^^^^^^^^
Sep 05 23:55:09.626 INFO kablam! 
Sep 05 23:55:09.638 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
Sep 05 23:55:09.640 INFO kablam! su: No module specific data is present
Sep 05 23:55:10.540 INFO running `"docker" "rm" "-f" "2043cede2a9a81a1d8302220be1f943de7d34f16e417afd7670992982b6954de"`
Sep 05 23:55:10.662 INFO blam! 2043cede2a9a81a1d8302220be1f943de7d34f16e417afd7670992982b6954de