Sep 19 20:06:24.690 INFO checking slab_allocator-0.3.3 against master#1e21c9a297a9fe668d62887a3a6a4add8e717b17 for pr-54352
Sep 19 20:06:24.690 INFO running: cargo +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets
Sep 19 20:06:24.690 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54352/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-0/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/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 +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 20:06:24.923 INFO blam! 3ed9452c6846d43c45b7b2f0b7c723f2a92a5516d4288557597e57d703371128
Sep 19 20:06:24.925 INFO running `"docker" "start" "-a" "3ed9452c6846d43c45b7b2f0b7c723f2a92a5516d4288557597e57d703371128"`
Sep 19 20:06:25.448 INFO kablam! usermod: no changes
Sep 19 20:06:25.513 INFO kablam!     Checking spin v0.4.9
Sep 19 20:06:25.711 INFO kablam!     Checking linked_list_allocator v0.6.3
Sep 19 20:06:25.875 INFO kablam!     Checking slab_allocator v0.3.3 (/source)
Sep 19 20:06:26.067 INFO kablam! warning: method is never used: `used_blocks`
Sep 19 20:06:26.068 INFO kablam!   --> src/slab.rs:18:5
Sep 19 20:06:26.068 INFO kablam!    |
Sep 19 20:06:26.068 INFO kablam! 18 |     pub fn used_blocks(&self) -> usize {
Sep 19 20:06:26.068 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 20:06:26.068 INFO kablam!    |
Sep 19 20:06:26.068 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 19 20:06:26.068 INFO kablam! 
Sep 19 20:06:26.068 INFO kablam! warning: method is never used: `len`
Sep 19 20:06:26.068 INFO kablam!   --> src/slab.rs:65:5
Sep 19 20:06:26.068 INFO kablam!    |
Sep 19 20:06:26.068 INFO kablam! 65 |     fn len(&self) -> usize {
Sep 19 20:06:26.068 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^
Sep 19 20:06:26.068 INFO kablam! 
Sep 19 20:06:26.068 INFO kablam! warning: method is never used: `is_empty`
Sep 19 20:06:26.068 INFO kablam!   --> src/slab.rs:83:5
Sep 19 20:06:26.068 INFO kablam!    |
Sep 19 20:06:26.068 INFO kablam! 83 |     fn is_empty(&self) -> bool {
Sep 19 20:06:26.068 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 20:06:26.068 INFO kablam! 
Sep 19 20:06:26.068 INFO kablam! warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
Sep 19 20:06:26.068 INFO kablam!  --> src/lib.rs:2:12
Sep 19 20:06:26.068 INFO kablam!   |
Sep 19 20:06:26.068 INFO kablam! 2 | #![feature(attr_literals)]
Sep 19 20:06:26.068 INFO kablam!   |            ^^^^^^^^^^^^^
Sep 19 20:06:26.068 INFO kablam!   |
Sep 19 20:06:26.068 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 19 20:06:26.068 INFO kablam! 
Sep 19 20:06:26.074 INFO kablam! warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
Sep 19 20:06:26.074 INFO kablam!  --> src/lib.rs:4:12
Sep 19 20:06:26.074 INFO kablam!   |
Sep 19 20:06:26.074 INFO kablam! 4 | #![feature(pointer_methods)]
Sep 19 20:06:26.074 INFO kablam!   |            ^^^^^^^^^^^^^^^
Sep 19 20:06:26.074 INFO kablam! 
Sep 19 20:06:26.264 INFO kablam! warning: method is never used: `used_blocks`
Sep 19 20:06:26.264 INFO kablam!   --> src/slab.rs:18:5
Sep 19 20:06:26.264 INFO kablam!    |
Sep 19 20:06:26.264 INFO kablam! 18 |     pub fn used_blocks(&self) -> usize {
Sep 19 20:06:26.264 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 20:06:26.264 INFO kablam!    |
Sep 19 20:06:26.264 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 19 20:06:26.265 INFO kablam! 
Sep 19 20:06:26.265 INFO kablam! warning: method is never used: `len`
Sep 19 20:06:26.265 INFO kablam!   --> src/slab.rs:65:5
Sep 19 20:06:26.265 INFO kablam!    |
Sep 19 20:06:26.265 INFO kablam! 65 |     fn len(&self) -> usize {
Sep 19 20:06:26.265 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^
Sep 19 20:06:26.265 INFO kablam! 
Sep 19 20:06:26.265 INFO kablam! warning: method is never used: `is_empty`
Sep 19 20:06:26.265 INFO kablam!   --> src/slab.rs:83:5
Sep 19 20:06:26.265 INFO kablam!    |
Sep 19 20:06:26.265 INFO kablam! 83 |     fn is_empty(&self) -> bool {
Sep 19 20:06:26.265 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 19 20:06:26.265 INFO kablam! 
Sep 19 20:06:26.265 INFO kablam! warning: the feature `attr_literals` has been stable since 1.30.0 and no longer requires an attribute to enable
Sep 19 20:06:26.266 INFO kablam!  --> src/lib.rs:2:12
Sep 19 20:06:26.266 INFO kablam!   |
Sep 19 20:06:26.266 INFO kablam! 2 | #![feature(attr_literals)]
Sep 19 20:06:26.266 INFO kablam!   |            ^^^^^^^^^^^^^
Sep 19 20:06:26.266 INFO kablam!   |
Sep 19 20:06:26.266 INFO kablam!   = note: #[warn(stable_features)] on by default
Sep 19 20:06:26.266 INFO kablam! 
Sep 19 20:06:26.266 INFO kablam! warning: the feature `pointer_methods` has been stable since 1.26.0 and no longer requires an attribute to enable
Sep 19 20:06:26.266 INFO kablam!  --> src/lib.rs:4:12
Sep 19 20:06:26.266 INFO kablam!   |
Sep 19 20:06:26.266 INFO kablam! 4 | #![feature(pointer_methods)]
Sep 19 20:06:26.266 INFO kablam!   |            ^^^^^^^^^^^^^^^
Sep 19 20:06:26.266 INFO kablam! 
Sep 19 20:06:26.289 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
Sep 19 20:06:26.292 INFO kablam! su: No module specific data is present
Sep 19 20:06:26.807 INFO running `"docker" "rm" "-f" "3ed9452c6846d43c45b7b2f0b7c723f2a92a5516d4288557597e57d703371128"`
Sep 19 20:06:26.941 INFO blam! 3ed9452c6846d43c45b7b2f0b7c723f2a92a5516d4288557597e57d703371128