Dec 06 10:52:07.399 INFO testing Parfyonator/merkle_tree against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 06 10:52:07.399 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-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 06 10:52:07.553 INFO [stdout] 008132b23c7001f312e8caff881fbc833f760a1f99b084f6c7b830af79aa78d4
Dec 06 10:52:07.555 INFO running `"docker" "start" "-a" "008132b23c7001f312e8caff881fbc833f760a1f99b084f6c7b830af79aa78d4"`
Dec 06 10:52:07.927 INFO [stderr] usermod: no changes
Dec 06 10:52:08.017 INFO [stderr]    Compiling merkle_tree v0.1.0 (/source)
Dec 06 10:52:08.605 INFO [stderr] warning: method is never used: `add_child`
Dec 06 10:52:08.605 INFO [stderr]   --> src/merkle_tree.rs:60:5
Dec 06 10:52:08.605 INFO [stderr]    |
Dec 06 10:52:08.605 INFO [stderr] 60 |     fn add_child(&mut self, new_val: String) -> bool {
Dec 06 10:52:08.605 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 10:52:08.605 INFO [stderr]    |
Dec 06 10:52:08.606 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 06 10:52:08.606 INFO [stderr] 
Dec 06 10:52:08.606 INFO [stderr] warning: method is never used: `has_children`
Dec 06 10:52:08.606 INFO [stderr]   --> src/merkle_tree.rs:74:5
Dec 06 10:52:08.606 INFO [stderr]    |
Dec 06 10:52:08.606 INFO [stderr] 74 |     fn has_children(&self) -> bool {
Dec 06 10:52:08.606 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 10:52:08.606 INFO [stderr] 
Dec 06 10:52:09.156 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
Dec 06 10:52:09.162 INFO [stderr] su: No module specific data is present
Dec 06 10:52:09.979 INFO running `"docker" "inspect" "008132b23c7001f312e8caff881fbc833f760a1f99b084f6c7b830af79aa78d4"`
Dec 06 10:52:10.143 INFO running `"docker" "rm" "-f" "008132b23c7001f312e8caff881fbc833f760a1f99b084f6c7b830af79aa78d4"`
Dec 06 10:52:10.512 INFO [stdout] 008132b23c7001f312e8caff881fbc833f760a1f99b084f6c7b830af79aa78d4
Dec 06 10:52:10.514 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen --no-run" "-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 06 10:52:10.952 INFO [stdout] 2b019e38962036778ae9b8031f489f988d06871f55567f67f4aac5a8118f8139
Dec 06 10:52:10.955 INFO running `"docker" "start" "-a" "2b019e38962036778ae9b8031f489f988d06871f55567f67f4aac5a8118f8139"`
Dec 06 10:52:12.162 INFO [stderr] usermod: no changes
Dec 06 10:52:12.264 INFO [stderr]    Compiling merkle_tree v0.1.0 (/source)
Dec 06 10:52:12.922 INFO [stderr] warning: method is never used: `add_child`
Dec 06 10:52:12.922 INFO [stderr]   --> src/merkle_tree.rs:60:5
Dec 06 10:52:12.922 INFO [stderr]    |
Dec 06 10:52:12.922 INFO [stderr] 60 |     fn add_child(&mut self, new_val: String) -> bool {
Dec 06 10:52:12.922 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 10:52:12.922 INFO [stderr]    |
Dec 06 10:52:12.922 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 06 10:52:12.922 INFO [stderr] 
Dec 06 10:52:12.922 INFO [stderr] warning: method is never used: `has_children`
Dec 06 10:52:12.922 INFO [stderr]   --> src/merkle_tree.rs:74:5
Dec 06 10:52:12.923 INFO [stderr]    |
Dec 06 10:52:12.923 INFO [stderr] 74 |     fn has_children(&self) -> bool {
Dec 06 10:52:12.923 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 06 10:52:12.923 INFO [stderr] 
Dec 06 10:52:13.308 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.11s
Dec 06 10:52:13.332 INFO [stderr] su: No module specific data is present
Dec 06 10:52:14.200 INFO running `"docker" "inspect" "2b019e38962036778ae9b8031f489f988d06871f55567f67f4aac5a8118f8139"`
Dec 06 10:52:14.454 INFO running `"docker" "rm" "-f" "2b019e38962036778ae9b8031f489f988d06871f55567f67f4aac5a8118f8139"`
Dec 06 10:52:14.743 INFO [stdout] 2b019e38962036778ae9b8031f489f988d06871f55567f67f4aac5a8118f8139
Dec 06 10:52:14.750 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/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 +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt test --frozen" "-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 06 10:52:15.165 INFO [stdout] 32971ab1ab5068f44d7968aa2198d56fca3422e6a4c4de07bee06e1c9fd9fedc
Dec 06 10:52:15.167 INFO running `"docker" "start" "-a" "32971ab1ab5068f44d7968aa2198d56fca3422e6a4c4de07bee06e1c9fd9fedc"`
Dec 06 10:52:16.193 INFO [stderr] usermod: no changes
Dec 06 10:52:16.260 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
Dec 06 10:52:16.263 INFO [stderr]      Running /target/debug/deps/merkle_tree-7232939a0cca1d69
Dec 06 10:52:16.268 INFO [stdout] 
Dec 06 10:52:16.268 INFO [stdout] running 0 tests
Dec 06 10:52:16.268 INFO [stdout] 
Dec 06 10:52:16.268 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 06 10:52:16.268 INFO [stdout] 
Dec 06 10:52:16.268 INFO [stderr] su: No module specific data is present
Dec 06 10:52:16.778 INFO running `"docker" "inspect" "32971ab1ab5068f44d7968aa2198d56fca3422e6a4c4de07bee06e1c9fd9fedc"`
Dec 06 10:52:16.894 INFO running `"docker" "rm" "-f" "32971ab1ab5068f44d7968aa2198d56fca3422e6a4c4de07bee06e1c9fd9fedc"`
Dec 06 10:52:17.059 INFO [stdout] 32971ab1ab5068f44d7968aa2198d56fca3422e6a4c4de07bee06e1c9fd9fedc