Nov 30 09:13:44.938 INFO checking Parfyonator/merkle_tree against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 30 09:13:44.938 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 30 09:13:45.180 INFO [stdout] c3399a3a1b6b38fecbe2ee0518105a8a6858f50bce7986a9b8d187b0384f86de
Nov 30 09:13:45.188 INFO running `"docker" "start" "-a" "c3399a3a1b6b38fecbe2ee0518105a8a6858f50bce7986a9b8d187b0384f86de"`
Nov 30 09:13:46.127 INFO [stderr] usermod: no changes
Nov 30 09:13:46.235 INFO [stderr]     Checking rust-crypto v0.2.36
Nov 30 09:13:51.960 INFO [stderr]     Checking merkle_tree v0.1.0 (/source)
Nov 30 09:13:52.740 INFO [stderr] warning: method is never used: `add_child`
Nov 30 09:13:52.740 INFO [stderr]   --> src/merkle_tree.rs:60:5
Nov 30 09:13:52.740 INFO [stderr]    |
Nov 30 09:13:52.740 INFO [stderr] 60 |     fn add_child(&mut self, new_val: String) -> bool {
Nov 30 09:13:52.740 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 09:13:52.740 INFO [stderr]    |
Nov 30 09:13:52.740 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 09:13:52.740 INFO [stderr] 
Nov 30 09:13:52.740 INFO [stderr] warning: method is never used: `has_children`
Nov 30 09:13:52.740 INFO [stderr]   --> src/merkle_tree.rs:74:5
Nov 30 09:13:52.740 INFO [stderr]    |
Nov 30 09:13:52.740 INFO [stderr] 74 |     fn has_children(&self) -> bool {
Nov 30 09:13:52.740 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 09:13:52.740 INFO [stderr] 
Nov 30 09:13:52.836 INFO [stderr] warning: method is never used: `add_child`
Nov 30 09:13:52.836 INFO [stderr]   --> src/merkle_tree.rs:60:5
Nov 30 09:13:52.836 INFO [stderr]    |
Nov 30 09:13:52.836 INFO [stderr] 60 |     fn add_child(&mut self, new_val: String) -> bool {
Nov 30 09:13:52.836 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 09:13:52.836 INFO [stderr]    |
Nov 30 09:13:52.836 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 30 09:13:52.836 INFO [stderr] 
Nov 30 09:13:52.836 INFO [stderr] warning: method is never used: `has_children`
Nov 30 09:13:52.836 INFO [stderr]   --> src/merkle_tree.rs:74:5
Nov 30 09:13:52.836 INFO [stderr]    |
Nov 30 09:13:52.836 INFO [stderr] 74 |     fn has_children(&self) -> bool {
Nov 30 09:13:52.836 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 09:13:52.836 INFO [stderr] 
Nov 30 09:13:52.861 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.72s
Nov 30 09:13:52.866 INFO [stderr] su: No module specific data is present
Nov 30 09:13:53.310 INFO running `"docker" "inspect" "c3399a3a1b6b38fecbe2ee0518105a8a6858f50bce7986a9b8d187b0384f86de"`
Nov 30 09:13:53.558 INFO running `"docker" "rm" "-f" "c3399a3a1b6b38fecbe2ee0518105a8a6858f50bce7986a9b8d187b0384f86de"`
Nov 30 09:13:53.675 INFO [stdout] c3399a3a1b6b38fecbe2ee0518105a8a6858f50bce7986a9b8d187b0384f86de