Sep 17 21:24:44.136 INFO checking merkle_tree-0.1.0 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 17 21:24:44.136 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 17 21:24:44.136 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-6/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-6/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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 +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 21:24:44.356 INFO blam! 1cd2971fb55881b6419661c78c4a7949645893326ae854172ec97c42ba7afc3b
Sep 17 21:24:44.363 INFO running `"docker" "start" "-a" "1cd2971fb55881b6419661c78c4a7949645893326ae854172ec97c42ba7afc3b"`
Sep 17 21:24:45.397 INFO kablam! usermod: no changes
Sep 17 21:24:45.643 INFO kablam!     Checking rayon v0.7.1
Sep 17 21:24:47.938 INFO kablam!     Checking merkle_tree v0.1.0 (/source)
Sep 17 21:24:50.907 INFO kablam! warning: unused import: `self::crypto::sha2::Sha256`
Sep 17 21:24:50.907 INFO kablam!   --> tests/bench_append.rs:13:9
Sep 17 21:24:50.907 INFO kablam!    |
Sep 17 21:24:50.907 INFO kablam! 13 |     use self::crypto::sha2::Sha256;
Sep 17 21:24:50.907 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 17 21:24:50.908 INFO kablam!    |
Sep 17 21:24:50.908 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 17 21:24:50.908 INFO kablam! 
Sep 17 21:24:50.908 INFO kablam! warning: unused import: `self::crypto::digest::Digest`
Sep 17 21:24:50.908 INFO kablam!   --> tests/bench_append.rs:14:9
Sep 17 21:24:50.908 INFO kablam!    |
Sep 17 21:24:50.908 INFO kablam! 14 |     use self::crypto::digest::Digest;
Sep 17 21:24:50.915 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 17 21:24:50.915 INFO kablam! 
Sep 17 21:24:51.367 INFO kablam! warning: unused variable: `a`
Sep 17 21:24:51.367 INFO kablam!    --> tests/bench_build_tree.rs:518:30
Sep 17 21:24:51.367 INFO kablam!     |
Sep 17 21:24:51.367 INFO kablam! 518 |             (0..n).fold((), |a, b| {
Sep 17 21:24:51.367 INFO kablam!     |                              ^ help: consider using `_a` instead
Sep 17 21:24:51.367 INFO kablam!     |
Sep 17 21:24:51.367 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 17 21:24:51.367 INFO kablam! 
Sep 17 21:24:51.367 INFO kablam! warning: unused variable: `b`
Sep 17 21:24:51.367 INFO kablam!    --> tests/bench_build_tree.rs:518:33
Sep 17 21:24:51.367 INFO kablam!     |
Sep 17 21:24:51.367 INFO kablam! 518 |             (0..n).fold((), |a, b| {
Sep 17 21:24:51.367 INFO kablam!     |                                 ^ help: consider using `_b` instead
Sep 17 21:24:51.367 INFO kablam! 
Sep 17 21:24:51.527 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.10s
Sep 17 21:24:51.539 INFO kablam! su: No module specific data is present
Sep 17 21:24:52.179 INFO running `"docker" "rm" "-f" "1cd2971fb55881b6419661c78c4a7949645893326ae854172ec97c42ba7afc3b"`
Sep 17 21:24:52.379 INFO blam! 1cd2971fb55881b6419661c78c4a7949645893326ae854172ec97c42ba7afc3b