Dec 05 00:43:28.087 INFO checking Parfyonator/merkle_tree against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 00:43:28.088 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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"`
Dec 05 00:43:28.564 INFO [stdout] 2da06025939fb0418fbee2552e2ea5190e427c5db85e204cca17ea769fb500ee
Dec 05 00:43:28.564 INFO running `"docker" "start" "-a" "2da06025939fb0418fbee2552e2ea5190e427c5db85e204cca17ea769fb500ee"`
Dec 05 00:43:29.126 INFO [stderr] usermod: no changes
Dec 05 00:43:29.241 INFO [stderr]     Checking hyper v0.10.5
Dec 05 00:43:33.092 INFO [stderr]     Checking merkle_tree v0.1.0 (/source)
Dec 05 00:43:34.200 INFO [stderr] warning: method is never used: `add_child`
Dec 05 00:43:34.201 INFO [stderr]   --> src/merkle_tree.rs:60:5
Dec 05 00:43:34.201 INFO [stderr]    |
Dec 05 00:43:34.201 INFO [stderr] 60 |     fn add_child(&mut self, new_val: String) -> bool {
Dec 05 00:43:34.202 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:43:34.202 INFO [stderr]    |
Dec 05 00:43:34.202 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 00:43:34.202 INFO [stderr] 
Dec 05 00:43:34.203 INFO [stderr] warning: method is never used: `has_children`
Dec 05 00:43:34.203 INFO [stderr]   --> src/merkle_tree.rs:74:5
Dec 05 00:43:34.203 INFO [stderr]    |
Dec 05 00:43:34.204 INFO [stderr] 74 |     fn has_children(&self) -> bool {
Dec 05 00:43:34.204 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:43:34.204 INFO [stderr] 
Dec 05 00:43:34.206 INFO [stderr] warning: method is never used: `add_child`
Dec 05 00:43:34.206 INFO [stderr]   --> src/merkle_tree.rs:60:5
Dec 05 00:43:34.207 INFO [stderr]    |
Dec 05 00:43:34.207 INFO [stderr] 60 |     fn add_child(&mut self, new_val: String) -> bool {
Dec 05 00:43:34.207 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:43:34.208 INFO [stderr]    |
Dec 05 00:43:34.208 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 00:43:34.208 INFO [stderr] 
Dec 05 00:43:34.209 INFO [stderr] warning: method is never used: `has_children`
Dec 05 00:43:34.209 INFO [stderr]   --> src/merkle_tree.rs:74:5
Dec 05 00:43:34.209 INFO [stderr]    |
Dec 05 00:43:34.209 INFO [stderr] 74 |     fn has_children(&self) -> bool {
Dec 05 00:43:34.209 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:43:34.209 INFO [stderr] 
Dec 05 00:43:34.248 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.09s
Dec 05 00:43:34.257 INFO [stderr] su: No module specific data is present
Dec 05 00:43:34.868 INFO running `"docker" "inspect" "2da06025939fb0418fbee2552e2ea5190e427c5db85e204cca17ea769fb500ee"`
Dec 05 00:43:35.131 INFO running `"docker" "rm" "-f" "2da06025939fb0418fbee2552e2ea5190e427c5db85e204cca17ea769fb500ee"`
Dec 05 00:43:35.502 INFO [stdout] 2da06025939fb0418fbee2552e2ea5190e427c5db85e204cca17ea769fb500ee