Nov 01 10:39:26.117 INFO checking Parfyonator/merkle_tree against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Nov 01 10:39:26.117 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-4/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 01 10:39:26.453 INFO blam! 259d9d52922db431aa00021cdbc26e27db08136047c5fa9bb4986601bb845cfd
Nov 01 10:39:26.460 INFO running `"docker" "start" "-a" "259d9d52922db431aa00021cdbc26e27db08136047c5fa9bb4986601bb845cfd"`
Nov 01 10:39:27.065 INFO kablam! usermod: no changes
Nov 01 10:39:27.142 INFO kablam!     Checking hyper v0.10.5
Nov 01 10:39:30.747 INFO kablam!     Checking merkle_tree v0.1.0 (/source)
Nov 01 10:39:31.692 INFO kablam! warning: method is never used: `add_child`
Nov 01 10:39:31.692 INFO kablam!   --> src/merkle_tree.rs:60:5
Nov 01 10:39:31.692 INFO kablam!    |
Nov 01 10:39:31.712 INFO kablam! 60 |     fn add_child(&mut self, new_val: String) -> bool {
Nov 01 10:39:31.712 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 10:39:31.712 INFO kablam!    |
Nov 01 10:39:31.712 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 01 10:39:31.712 INFO kablam! 
Nov 01 10:39:31.712 INFO kablam! warning: method is never used: `has_children`
Nov 01 10:39:31.712 INFO kablam!   --> src/merkle_tree.rs:74:5
Nov 01 10:39:31.712 INFO kablam!    |
Nov 01 10:39:31.712 INFO kablam! 74 |     fn has_children(&self) -> bool {
Nov 01 10:39:31.712 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 10:39:31.712 INFO kablam! 
Nov 01 10:39:31.784 INFO kablam! warning: method is never used: `add_child`
Nov 01 10:39:31.784 INFO kablam!   --> src/merkle_tree.rs:60:5
Nov 01 10:39:31.784 INFO kablam!    |
Nov 01 10:39:31.784 INFO kablam! 60 |     fn add_child(&mut self, new_val: String) -> bool {
Nov 01 10:39:31.784 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 10:39:31.784 INFO kablam!    |
Nov 01 10:39:31.784 INFO kablam!    = note: #[warn(dead_code)] on by default
Nov 01 10:39:31.784 INFO kablam! 
Nov 01 10:39:31.784 INFO kablam! warning: method is never used: `has_children`
Nov 01 10:39:31.784 INFO kablam!   --> src/merkle_tree.rs:74:5
Nov 01 10:39:31.784 INFO kablam!    |
Nov 01 10:39:31.784 INFO kablam! 74 |     fn has_children(&self) -> bool {
Nov 01 10:39:31.784 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 01 10:39:31.784 INFO kablam! 
Nov 01 10:39:31.828 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.75s
Nov 01 10:39:31.837 INFO kablam! su: No module specific data is present
Nov 01 10:39:32.720 INFO running `"docker" "rm" "-f" "259d9d52922db431aa00021cdbc26e27db08136047c5fa9bb4986601bb845cfd"`
Nov 01 10:39:33.084 INFO blam! 259d9d52922db431aa00021cdbc26e27db08136047c5fa9bb4986601bb845cfd