Sep 01 14:09:31.438 INFO checking merkle_tree-0.1.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 14:09:31.438 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 14:09:31.438 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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=500" "-e" "CMD=cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 14:09:31.615 INFO blam! e48962b29bc2359be84683c6f54c19d3269ceb3df036f63d44fed60af0321d5d
Sep 01 14:09:31.617 INFO running `"docker" "start" "-a" "e48962b29bc2359be84683c6f54c19d3269ceb3df036f63d44fed60af0321d5d"`
Sep 01 14:09:32.236 INFO kablam!     Checking rayon v0.7.1
Sep 01 14:09:34.852 INFO kablam!     Checking merkle_tree v0.1.0 (file:///source)
Sep 01 14:09:39.374 INFO kablam! warning: unused import: `self::crypto::sha2::Sha256`
Sep 01 14:09:39.374 INFO kablam!   --> tests/bench_append.rs:13:9
Sep 01 14:09:39.374 INFO kablam!    |
Sep 01 14:09:39.374 INFO kablam! 13 |     use self::crypto::sha2::Sha256;
Sep 01 14:09:39.374 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 14:09:39.374 INFO kablam!    |
Sep 01 14:09:39.374 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 01 14:09:39.374 INFO kablam! 
Sep 01 14:09:39.374 INFO kablam! warning: unused import: `self::crypto::digest::Digest`
Sep 01 14:09:39.374 INFO kablam!   --> tests/bench_append.rs:14:9
Sep 01 14:09:39.374 INFO kablam!    |
Sep 01 14:09:39.374 INFO kablam! 14 |     use self::crypto::digest::Digest;
Sep 01 14:09:39.375 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 01 14:09:39.375 INFO kablam! 
Sep 01 14:09:39.779 INFO kablam! warning: unused variable: `a`
Sep 01 14:09:39.779 INFO kablam!    --> tests/bench_build_tree.rs:518:30
Sep 01 14:09:39.779 INFO kablam!     |
Sep 01 14:09:39.779 INFO kablam! 518 |             (0..n).fold((), |a, b| {
Sep 01 14:09:39.779 INFO kablam!     |                              ^ help: consider using `_a` instead
Sep 01 14:09:39.779 INFO kablam!     |
Sep 01 14:09:39.779 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 01 14:09:39.779 INFO kablam! 
Sep 01 14:09:39.780 INFO kablam! warning: unused variable: `b`
Sep 01 14:09:39.780 INFO kablam!    --> tests/bench_build_tree.rs:518:33
Sep 01 14:09:39.780 INFO kablam!     |
Sep 01 14:09:39.780 INFO kablam! 518 |             (0..n).fold((), |a, b| {
Sep 01 14:09:39.780 INFO kablam!     |                                 ^ help: consider using `_b` instead
Sep 01 14:09:39.780 INFO kablam! 
Sep 01 14:09:39.873 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 7.72s
Sep 01 14:09:39.880 INFO kablam! su: No module specific data is present
Sep 01 14:09:40.435 INFO running `"docker" "rm" "-f" "e48962b29bc2359be84683c6f54c19d3269ceb3df036f63d44fed60af0321d5d"`
Sep 01 14:09:40.524 INFO blam! e48962b29bc2359be84683c6f54c19d3269ceb3df036f63d44fed60af0321d5d