Nov 17 12:45:30.291 INFO testing Parfyonator/merkle_tree against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 12:45:30.291 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 12:45:30.450 INFO [stdout] 98ba80f93166fa64f81590a9dccf20ab5f44f44680e8e75652306a1918150b99
Nov 17 12:45:30.450 INFO running `"docker" "start" "-a" "98ba80f93166fa64f81590a9dccf20ab5f44f44680e8e75652306a1918150b99"`
Nov 17 12:45:30.861 INFO [stderr] usermod: no changes
Nov 17 12:45:30.967 INFO [stderr]    Compiling rust-crypto v0.2.36
Nov 17 12:45:30.967 INFO [stderr]    Compiling hyper v0.10.5
Nov 17 12:45:44.399 INFO [stderr]    Compiling merkle_tree v0.1.0 (/source)
Nov 17 12:45:45.011 INFO [stderr] warning: method is never used: `add_child`
Nov 17 12:45:45.011 INFO [stderr]   --> src/merkle_tree.rs:60:5
Nov 17 12:45:45.011 INFO [stderr]    |
Nov 17 12:45:45.011 INFO [stderr] 60 |     fn add_child(&mut self, new_val: String) -> bool {
Nov 17 12:45:45.011 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 12:45:45.011 INFO [stderr]    |
Nov 17 12:45:45.011 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 17 12:45:45.011 INFO [stderr] 
Nov 17 12:45:45.011 INFO [stderr] warning: method is never used: `has_children`
Nov 17 12:45:45.011 INFO [stderr]   --> src/merkle_tree.rs:74:5
Nov 17 12:45:45.011 INFO [stderr]    |
Nov 17 12:45:45.011 INFO [stderr] 74 |     fn has_children(&self) -> bool {
Nov 17 12:45:45.011 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 12:45:45.011 INFO [stderr] 
Nov 17 12:45:45.964 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.08s
Nov 17 12:45:45.965 INFO [stderr] su: No module specific data is present
Nov 17 12:45:46.584 INFO running `"docker" "inspect" "98ba80f93166fa64f81590a9dccf20ab5f44f44680e8e75652306a1918150b99"`
Nov 17 12:45:46.921 INFO running `"docker" "rm" "-f" "98ba80f93166fa64f81590a9dccf20ab5f44f44680e8e75652306a1918150b99"`
Nov 17 12:45:47.195 INFO [stdout] 98ba80f93166fa64f81590a9dccf20ab5f44f44680e8e75652306a1918150b99
Nov 17 12:45:47.197 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 12:45:47.664 INFO [stdout] 6988f71dcd6e9cc8b60ae78c3bba19c2c93aa9439cf41f833b4a6f168aa5e1ac
Nov 17 12:45:47.671 INFO running `"docker" "start" "-a" "6988f71dcd6e9cc8b60ae78c3bba19c2c93aa9439cf41f833b4a6f168aa5e1ac"`
Nov 17 12:45:48.773 INFO [stderr] usermod: no changes
Nov 17 12:45:48.931 INFO [stderr]    Compiling merkle_tree v0.1.0 (/source)
Nov 17 12:45:49.635 INFO [stderr] warning: method is never used: `add_child`
Nov 17 12:45:49.636 INFO [stderr]   --> src/merkle_tree.rs:60:5
Nov 17 12:45:49.636 INFO [stderr]    |
Nov 17 12:45:49.636 INFO [stderr] 60 |     fn add_child(&mut self, new_val: String) -> bool {
Nov 17 12:45:49.637 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 12:45:49.637 INFO [stderr]    |
Nov 17 12:45:49.637 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 17 12:45:49.638 INFO [stderr] 
Nov 17 12:45:49.638 INFO [stderr] warning: method is never used: `has_children`
Nov 17 12:45:49.638 INFO [stderr]   --> src/merkle_tree.rs:74:5
Nov 17 12:45:49.639 INFO [stderr]    |
Nov 17 12:45:49.639 INFO [stderr] 74 |     fn has_children(&self) -> bool {
Nov 17 12:45:49.639 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 12:45:49.640 INFO [stderr] 
Nov 17 12:45:50.031 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
Nov 17 12:45:50.032 INFO [stderr] su: No module specific data is present
Nov 17 12:45:50.929 INFO running `"docker" "inspect" "6988f71dcd6e9cc8b60ae78c3bba19c2c93aa9439cf41f833b4a6f168aa5e1ac"`
Nov 17 12:45:51.229 INFO running `"docker" "rm" "-f" "6988f71dcd6e9cc8b60ae78c3bba19c2c93aa9439cf41f833b4a6f168aa5e1ac"`
Nov 17 12:45:51.575 INFO [stdout] 6988f71dcd6e9cc8b60ae78c3bba19c2c93aa9439cf41f833b4a6f168aa5e1ac
Nov 17 12:45:51.585 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-3/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/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 +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-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"`
Nov 17 12:45:52.191 INFO [stdout] 884a233a8e2637433df7664a139987d08bb01e5eec5fb4e820843bf56f8d49ba
Nov 17 12:45:52.193 INFO running `"docker" "start" "-a" "884a233a8e2637433df7664a139987d08bb01e5eec5fb4e820843bf56f8d49ba"`
Nov 17 12:45:53.302 INFO [stderr] usermod: no changes
Nov 17 12:45:53.423 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
Nov 17 12:45:53.435 INFO [stderr]      Running /target/debug/deps/merkle_tree-be93fb4c673fc58a
Nov 17 12:45:53.440 INFO [stdout] 
Nov 17 12:45:53.440 INFO [stdout] running 0 tests
Nov 17 12:45:53.440 INFO [stdout] 
Nov 17 12:45:53.440 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 12:45:53.440 INFO [stdout] 
Nov 17 12:45:53.444 INFO [stderr] su: No module specific data is present
Nov 17 12:45:54.003 INFO running `"docker" "inspect" "884a233a8e2637433df7664a139987d08bb01e5eec5fb4e820843bf56f8d49ba"`
Nov 17 12:45:54.293 INFO running `"docker" "rm" "-f" "884a233a8e2637433df7664a139987d08bb01e5eec5fb4e820843bf56f8d49ba"`
Nov 17 12:45:54.554 INFO [stdout] 884a233a8e2637433df7664a139987d08bb01e5eec5fb4e820843bf56f8d49ba