Sep 17 21:24:45.245 INFO checking merkle_tree-0.1.0 against master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690 for pr-54033
Sep 17 21:24:45.245 INFO running: cargo +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets
Sep 17 21:24:45.245 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54033/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-5/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/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 +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 21:24:45.531 INFO blam! b0d66c977c8358831c3f270fad25d42ef6fa31706677fa81187ef4857e1d039d
Sep 17 21:24:45.535 INFO running `"docker" "start" "-a" "b0d66c977c8358831c3f270fad25d42ef6fa31706677fa81187ef4857e1d039d"`
Sep 17 21:24:46.570 INFO kablam! usermod: no changes
Sep 17 21:24:46.795 INFO kablam!     Checking rayon v0.7.1
Sep 17 21:24:49.011 INFO kablam!     Checking merkle_tree v0.1.0 (/source)
Sep 17 21:24:52.367 INFO kablam! warning: unused import: `self::crypto::sha2::Sha256`
Sep 17 21:24:52.367 INFO kablam!   --> tests/bench_append.rs:13:9
Sep 17 21:24:52.367 INFO kablam!    |
Sep 17 21:24:52.367 INFO kablam! 13 |     use self::crypto::sha2::Sha256;
Sep 17 21:24:52.367 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 17 21:24:52.367 INFO kablam!    |
Sep 17 21:24:52.367 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 17 21:24:52.367 INFO kablam! 
Sep 17 21:24:52.367 INFO kablam! warning: unused import: `self::crypto::digest::Digest`
Sep 17 21:24:52.367 INFO kablam!   --> tests/bench_append.rs:14:9
Sep 17 21:24:52.367 INFO kablam!    |
Sep 17 21:24:52.367 INFO kablam! 14 |     use self::crypto::digest::Digest;
Sep 17 21:24:52.367 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 17 21:24:52.367 INFO kablam! 
Sep 17 21:24:52.535 INFO kablam! warning: unused variable: `a`
Sep 17 21:24:52.535 INFO kablam!    --> tests/bench_build_tree.rs:518:30
Sep 17 21:24:52.535 INFO kablam!     |
Sep 17 21:24:52.535 INFO kablam! 518 |             (0..n).fold((), |a, b| {
Sep 17 21:24:52.535 INFO kablam!     |                              ^ help: consider using `_a` instead
Sep 17 21:24:52.535 INFO kablam!     |
Sep 17 21:24:52.535 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 17 21:24:52.535 INFO kablam! 
Sep 17 21:24:52.535 INFO kablam! warning: unused variable: `b`
Sep 17 21:24:52.535 INFO kablam!    --> tests/bench_build_tree.rs:518:33
Sep 17 21:24:52.535 INFO kablam!     |
Sep 17 21:24:52.535 INFO kablam! 518 |             (0..n).fold((), |a, b| {
Sep 17 21:24:52.535 INFO kablam!     |                                 ^ help: consider using `_b` instead
Sep 17 21:24:52.535 INFO kablam! 
Sep 17 21:24:52.643 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 6.03s
Sep 17 21:24:52.651 INFO kablam! su: No module specific data is present
Sep 17 21:24:53.371 INFO running `"docker" "rm" "-f" "b0d66c977c8358831c3f270fad25d42ef6fa31706677fa81187ef4857e1d039d"`
Sep 17 21:24:53.521 INFO blam! b0d66c977c8358831c3f270fad25d42ef6fa31706677fa81187ef4857e1d039d