Nov 07 12:13:29.661 INFO checking merkle_tree-0.1.0 against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 07 12:13:29.662 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-6/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +24e66c28980442a48d9458f1a4f9b76cc722dc8a-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 07 12:13:30.032 INFO blam! 271b122d75a2df39e13a48ae7cbb6feab23daa565a09a87922f9305e68c7832e
Nov 07 12:13:30.037 INFO running `"docker" "start" "-a" "271b122d75a2df39e13a48ae7cbb6feab23daa565a09a87922f9305e68c7832e"`
Nov 07 12:13:30.484 INFO kablam! usermod: no changes
Nov 07 12:13:30.636 INFO kablam!     Checking rayon v0.7.1
Nov 07 12:13:33.245 INFO kablam!     Checking merkle_tree v0.1.0 (/source)
Nov 07 12:13:39.852 INFO kablam! warning: unused variable: `a`
Nov 07 12:13:39.852 INFO kablam!    --> tests/bench_build_tree.rs:518:30
Nov 07 12:13:39.852 INFO kablam!     |
Nov 07 12:13:39.852 INFO kablam! 518 |             (0..n).fold((), |a, b| {
Nov 07 12:13:39.852 INFO kablam!     |                              ^ help: consider using `_a` instead
Nov 07 12:13:39.852 INFO kablam!     |
Nov 07 12:13:39.852 INFO kablam!     = note: #[warn(unused_variables)] on by default
Nov 07 12:13:39.852 INFO kablam! 
Nov 07 12:13:39.852 INFO kablam! warning: unused variable: `b`
Nov 07 12:13:39.852 INFO kablam!    --> tests/bench_build_tree.rs:518:33
Nov 07 12:13:39.852 INFO kablam!     |
Nov 07 12:13:39.852 INFO kablam! 518 |             (0..n).fold((), |a, b| {
Nov 07 12:13:39.852 INFO kablam!     |                                 ^ help: consider using `_b` instead
Nov 07 12:13:39.852 INFO kablam! 
Nov 07 12:13:40.947 INFO kablam! warning: unused import: `self::crypto::sha2::Sha256`
Nov 07 12:13:40.947 INFO kablam!   --> tests/bench_append.rs:13:9
Nov 07 12:13:40.947 INFO kablam!    |
Nov 07 12:13:40.947 INFO kablam! 13 |     use self::crypto::sha2::Sha256;
Nov 07 12:13:40.947 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 07 12:13:40.947 INFO kablam!    |
Nov 07 12:13:40.947 INFO kablam!    = note: #[warn(unused_imports)] on by default
Nov 07 12:13:40.947 INFO kablam! 
Nov 07 12:13:40.947 INFO kablam! warning: unused import: `self::crypto::digest::Digest`
Nov 07 12:13:40.947 INFO kablam!   --> tests/bench_append.rs:14:9
Nov 07 12:13:40.947 INFO kablam!    |
Nov 07 12:13:40.947 INFO kablam! 14 |     use self::crypto::digest::Digest;
Nov 07 12:13:40.947 INFO kablam!    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 07 12:13:40.947 INFO kablam! 
Nov 07 12:13:41.048 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 10.54s
Nov 07 12:13:41.064 INFO kablam! su: No module specific data is present
Nov 07 12:13:41.526 INFO running `"docker" "rm" "-f" "271b122d75a2df39e13a48ae7cbb6feab23daa565a09a87922f9305e68c7832e"`
Nov 07 12:13:41.765 INFO blam! 271b122d75a2df39e13a48ae7cbb6feab23daa565a09a87922f9305e68c7832e