Oct 13 03:07:56.766 INFO checking Parfyonator/merkle_tree against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 03:07:56.766 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 03:07:57.002 INFO blam! c7b54cf9c018ba3fe24d20f57e0c02c5d96fb611ff1f7b321da20accebbdf4ae
Oct 13 03:07:57.013 INFO running `"docker" "start" "-a" "c7b54cf9c018ba3fe24d20f57e0c02c5d96fb611ff1f7b321da20accebbdf4ae"`
Oct 13 03:07:57.665 INFO kablam! usermod: no changes
Oct 13 03:07:57.778 INFO kablam!     Checking rust-crypto v0.2.36
Oct 13 03:07:57.778 INFO kablam!     Checking hyper v0.10.5
Oct 13 03:08:05.372 INFO kablam!     Checking merkle_tree v0.1.0 (/source)
Oct 13 03:08:06.819 INFO kablam! warning: method is never used: `add_child`
Oct 13 03:08:06.819 INFO kablam!   --> src/merkle_tree.rs:60:5
Oct 13 03:08:06.819 INFO kablam!    |
Oct 13 03:08:06.819 INFO kablam! 60 |     fn add_child(&mut self, new_val: String) -> bool {
Oct 13 03:08:06.819 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:08:06.819 INFO kablam!    |
Oct 13 03:08:06.819 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 03:08:06.819 INFO kablam! 
Oct 13 03:08:06.819 INFO kablam! warning: method is never used: `has_children`
Oct 13 03:08:06.819 INFO kablam!   --> src/merkle_tree.rs:74:5
Oct 13 03:08:06.819 INFO kablam!    |
Oct 13 03:08:06.819 INFO kablam! 74 |     fn has_children(&self) -> bool {
Oct 13 03:08:06.819 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:08:06.819 INFO kablam! 
Oct 13 03:08:07.008 INFO kablam! warning: method is never used: `add_child`
Oct 13 03:08:07.008 INFO kablam!   --> src/merkle_tree.rs:60:5
Oct 13 03:08:07.008 INFO kablam!    |
Oct 13 03:08:07.008 INFO kablam! 60 |     fn add_child(&mut self, new_val: String) -> bool {
Oct 13 03:08:07.008 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:08:07.008 INFO kablam!    |
Oct 13 03:08:07.008 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 03:08:07.008 INFO kablam! 
Oct 13 03:08:07.008 INFO kablam! warning: method is never used: `has_children`
Oct 13 03:08:07.008 INFO kablam!   --> src/merkle_tree.rs:74:5
Oct 13 03:08:07.008 INFO kablam!    |
Oct 13 03:08:07.008 INFO kablam! 74 |     fn has_children(&self) -> bool {
Oct 13 03:08:07.008 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 03:08:07.008 INFO kablam! 
Oct 13 03:08:07.070 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 9.39s
Oct 13 03:08:07.078 INFO kablam! su: No module specific data is present
Oct 13 03:08:07.821 INFO running `"docker" "rm" "-f" "c7b54cf9c018ba3fe24d20f57e0c02c5d96fb611ff1f7b321da20accebbdf4ae"`
Oct 13 03:08:08.186 INFO blam! c7b54cf9c018ba3fe24d20f57e0c02c5d96fb611ff1f7b321da20accebbdf4ae