Dec 05 19:01:07.001 INFO testing jzw2/rust-data-structures against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 05 19:01:07.001 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 19:01:07.416 INFO [stdout] 6d24d3742156911653eb311259f3283e97b22243179b50d39544a6949bf82310
Dec 05 19:01:07.424 INFO running `"docker" "start" "-a" "6d24d3742156911653eb311259f3283e97b22243179b50d39544a6949bf82310"`
Dec 05 19:01:08.278 INFO [stderr] usermod: no changes
Dec 05 19:01:08.328 INFO [stderr]    Compiling rust-datastructures v0.1.0 (/source)
Dec 05 19:01:08.648 INFO [stderr] warning: unused variable: `key`
Dec 05 19:01:08.648 INFO [stderr]   --> src/main.rs:21:20
Dec 05 19:01:08.648 INFO [stderr]    |
Dec 05 19:01:08.648 INFO [stderr] 21 |     fn find(&self, key: usize) -> Option<&T> {
Dec 05 19:01:08.648 INFO [stderr]    |                    ^^^ help: consider using `_key` instead
Dec 05 19:01:08.648 INFO [stderr]    |
Dec 05 19:01:08.648 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 19:01:08.648 INFO [stderr] 
Dec 05 19:01:08.648 INFO [stderr] warning: unused variable: `key`
Dec 05 19:01:08.648 INFO [stderr]   --> src/main.rs:75:26
Dec 05 19:01:08.649 INFO [stderr]    |
Dec 05 19:01:08.649 INFO [stderr] 75 |     fn delete(&mut self, key: usize) {
Dec 05 19:01:08.649 INFO [stderr]    |                          ^^^ help: consider using `_key` instead
Dec 05 19:01:08.649 INFO [stderr] 
Dec 05 19:01:08.650 INFO [stderr] warning: field is never used: `data`
Dec 05 19:01:08.650 INFO [stderr]  --> src/main.rs:2:5
Dec 05 19:01:08.650 INFO [stderr]   |
Dec 05 19:01:08.650 INFO [stderr] 2 |     data: Vec<Node<T>>,
Dec 05 19:01:08.650 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 05 19:01:08.650 INFO [stderr]   |
Dec 05 19:01:08.650 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 19:01:08.650 INFO [stderr] 
Dec 05 19:01:08.650 INFO [stderr] warning: field is never used: `root`
Dec 05 19:01:08.650 INFO [stderr]  --> src/main.rs:4:5
Dec 05 19:01:08.650 INFO [stderr]   |
Dec 05 19:01:08.650 INFO [stderr] 4 |     root: Option<usize>,
Dec 05 19:01:08.650 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 05 19:01:08.650 INFO [stderr] 
Dec 05 19:01:08.650 INFO [stderr] warning: field is never used: `key`
Dec 05 19:01:08.650 INFO [stderr]  --> src/main.rs:8:5
Dec 05 19:01:08.650 INFO [stderr]   |
Dec 05 19:01:08.650 INFO [stderr] 8 |     key: usize,
Dec 05 19:01:08.650 INFO [stderr]   |     ^^^^^^^^^^
Dec 05 19:01:08.650 INFO [stderr] 
Dec 05 19:01:08.651 INFO [stderr] warning: field is never used: `value`
Dec 05 19:01:08.651 INFO [stderr]  --> src/main.rs:9:5
Dec 05 19:01:08.651 INFO [stderr]   |
Dec 05 19:01:08.651 INFO [stderr] 9 |     value: T,
Dec 05 19:01:08.651 INFO [stderr]   |     ^^^^^^^^
Dec 05 19:01:08.651 INFO [stderr] 
Dec 05 19:01:08.651 INFO [stderr] warning: field is never used: `left`
Dec 05 19:01:08.651 INFO [stderr]   --> src/main.rs:10:5
Dec 05 19:01:08.651 INFO [stderr]    |
Dec 05 19:01:08.651 INFO [stderr] 10 |     left: Option<usize>,
Dec 05 19:01:08.651 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 05 19:01:08.651 INFO [stderr] 
Dec 05 19:01:08.651 INFO [stderr] warning: field is never used: `right`
Dec 05 19:01:08.651 INFO [stderr]   --> src/main.rs:11:5
Dec 05 19:01:08.651 INFO [stderr]    |
Dec 05 19:01:08.651 INFO [stderr] 11 |     right: Option<usize>,
Dec 05 19:01:08.651 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 05 19:01:08.651 INFO [stderr] 
Dec 05 19:01:08.651 INFO [stderr] warning: method is never used: `new`
Dec 05 19:01:08.651 INFO [stderr]   --> src/main.rs:18:5
Dec 05 19:01:08.651 INFO [stderr]    |
Dec 05 19:01:08.651 INFO [stderr] 18 |     fn new() {
Dec 05 19:01:08.651 INFO [stderr]    |     ^^^^^^^^
Dec 05 19:01:08.651 INFO [stderr] 
Dec 05 19:01:08.651 INFO [stderr] warning: method is never used: `find`
Dec 05 19:01:08.651 INFO [stderr]   --> src/main.rs:21:5
Dec 05 19:01:08.651 INFO [stderr]    |
Dec 05 19:01:08.651 INFO [stderr] 21 |     fn find(&self, key: usize) -> Option<&T> {
Dec 05 19:01:08.651 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 19:01:08.651 INFO [stderr] 
Dec 05 19:01:08.651 INFO [stderr] warning: method is never used: `insert`
Dec 05 19:01:08.651 INFO [stderr]   --> src/main.rs:27:5
Dec 05 19:01:08.651 INFO [stderr]    |
Dec 05 19:01:08.651 INFO [stderr] 27 |     fn insert(&mut self, key: usize, value: T) {
Dec 05 19:01:08.651 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 19:01:08.651 INFO [stderr] 
Dec 05 19:01:08.651 INFO [stderr] warning: method is never used: `delete`
Dec 05 19:01:08.651 INFO [stderr]   --> src/main.rs:75:5
Dec 05 19:01:08.651 INFO [stderr]    |
Dec 05 19:01:08.651 INFO [stderr] 75 |     fn delete(&mut self, key: usize) {
Dec 05 19:01:08.651 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 19:01:08.651 INFO [stderr] 
Dec 05 19:01:08.913 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
Dec 05 19:01:08.920 INFO [stderr] su: No module specific data is present
Dec 05 19:01:09.610 INFO running `"docker" "inspect" "6d24d3742156911653eb311259f3283e97b22243179b50d39544a6949bf82310"`
Dec 05 19:01:09.723 INFO running `"docker" "rm" "-f" "6d24d3742156911653eb311259f3283e97b22243179b50d39544a6949bf82310"`
Dec 05 19:01:09.859 INFO [stdout] 6d24d3742156911653eb311259f3283e97b22243179b50d39544a6949bf82310
Dec 05 19:01:09.862 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 19:01:10.086 INFO [stdout] e8c91622d779ff820478a1c6873c1d78c94afff7ad9b7d99d07c8677613fd0a1
Dec 05 19:01:10.092 INFO running `"docker" "start" "-a" "e8c91622d779ff820478a1c6873c1d78c94afff7ad9b7d99d07c8677613fd0a1"`
Dec 05 19:01:10.656 INFO [stderr] usermod: no changes
Dec 05 19:01:10.702 INFO [stderr]    Compiling rust-datastructures v0.1.0 (/source)
Dec 05 19:01:11.119 INFO [stderr] warning: unused variable: `key`
Dec 05 19:01:11.119 INFO [stderr]   --> src/main.rs:21:20
Dec 05 19:01:11.119 INFO [stderr]    |
Dec 05 19:01:11.119 INFO [stderr] 21 |     fn find(&self, key: usize) -> Option<&T> {
Dec 05 19:01:11.119 INFO [stderr]    |                    ^^^ help: consider using `_key` instead
Dec 05 19:01:11.119 INFO [stderr]    |
Dec 05 19:01:11.119 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 05 19:01:11.119 INFO [stderr] 
Dec 05 19:01:11.119 INFO [stderr] warning: unused variable: `key`
Dec 05 19:01:11.119 INFO [stderr]   --> src/main.rs:75:26
Dec 05 19:01:11.119 INFO [stderr]    |
Dec 05 19:01:11.119 INFO [stderr] 75 |     fn delete(&mut self, key: usize) {
Dec 05 19:01:11.119 INFO [stderr]    |                          ^^^ help: consider using `_key` instead
Dec 05 19:01:11.119 INFO [stderr] 
Dec 05 19:01:11.120 INFO [stderr] warning: field is never used: `data`
Dec 05 19:01:11.120 INFO [stderr]  --> src/main.rs:2:5
Dec 05 19:01:11.120 INFO [stderr]   |
Dec 05 19:01:11.120 INFO [stderr] 2 |     data: Vec<Node<T>>,
Dec 05 19:01:11.120 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Dec 05 19:01:11.120 INFO [stderr]   |
Dec 05 19:01:11.120 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 05 19:01:11.120 INFO [stderr] 
Dec 05 19:01:11.120 INFO [stderr] warning: field is never used: `root`
Dec 05 19:01:11.120 INFO [stderr]  --> src/main.rs:4:5
Dec 05 19:01:11.120 INFO [stderr]   |
Dec 05 19:01:11.120 INFO [stderr] 4 |     root: Option<usize>,
Dec 05 19:01:11.120 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Dec 05 19:01:11.120 INFO [stderr] 
Dec 05 19:01:11.120 INFO [stderr] warning: field is never used: `key`
Dec 05 19:01:11.120 INFO [stderr]  --> src/main.rs:8:5
Dec 05 19:01:11.120 INFO [stderr]   |
Dec 05 19:01:11.121 INFO [stderr] 8 |     key: usize,
Dec 05 19:01:11.121 INFO [stderr]   |     ^^^^^^^^^^
Dec 05 19:01:11.121 INFO [stderr] 
Dec 05 19:01:11.121 INFO [stderr] warning: field is never used: `value`
Dec 05 19:01:11.121 INFO [stderr]  --> src/main.rs:9:5
Dec 05 19:01:11.121 INFO [stderr]   |
Dec 05 19:01:11.121 INFO [stderr] 9 |     value: T,
Dec 05 19:01:11.121 INFO [stderr]   |     ^^^^^^^^
Dec 05 19:01:11.121 INFO [stderr] 
Dec 05 19:01:11.121 INFO [stderr] warning: field is never used: `left`
Dec 05 19:01:11.121 INFO [stderr]   --> src/main.rs:10:5
Dec 05 19:01:11.121 INFO [stderr]    |
Dec 05 19:01:11.121 INFO [stderr] 10 |     left: Option<usize>,
Dec 05 19:01:11.121 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 05 19:01:11.121 INFO [stderr] 
Dec 05 19:01:11.121 INFO [stderr] warning: field is never used: `right`
Dec 05 19:01:11.121 INFO [stderr]   --> src/main.rs:11:5
Dec 05 19:01:11.121 INFO [stderr]    |
Dec 05 19:01:11.121 INFO [stderr] 11 |     right: Option<usize>,
Dec 05 19:01:11.121 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 05 19:01:11.121 INFO [stderr] 
Dec 05 19:01:11.121 INFO [stderr] warning: method is never used: `new`
Dec 05 19:01:11.121 INFO [stderr]   --> src/main.rs:18:5
Dec 05 19:01:11.121 INFO [stderr]    |
Dec 05 19:01:11.121 INFO [stderr] 18 |     fn new() {
Dec 05 19:01:11.121 INFO [stderr]    |     ^^^^^^^^
Dec 05 19:01:11.121 INFO [stderr] 
Dec 05 19:01:11.121 INFO [stderr] warning: method is never used: `find`
Dec 05 19:01:11.121 INFO [stderr]   --> src/main.rs:21:5
Dec 05 19:01:11.121 INFO [stderr]    |
Dec 05 19:01:11.121 INFO [stderr] 21 |     fn find(&self, key: usize) -> Option<&T> {
Dec 05 19:01:11.121 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 19:01:11.121 INFO [stderr] 
Dec 05 19:01:11.121 INFO [stderr] warning: method is never used: `insert`
Dec 05 19:01:11.121 INFO [stderr]   --> src/main.rs:27:5
Dec 05 19:01:11.121 INFO [stderr]    |
Dec 05 19:01:11.121 INFO [stderr] 27 |     fn insert(&mut self, key: usize, value: T) {
Dec 05 19:01:11.121 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 19:01:11.121 INFO [stderr] 
Dec 05 19:01:11.121 INFO [stderr] warning: method is never used: `delete`
Dec 05 19:01:11.121 INFO [stderr]   --> src/main.rs:75:5
Dec 05 19:01:11.121 INFO [stderr]    |
Dec 05 19:01:11.121 INFO [stderr] 75 |     fn delete(&mut self, key: usize) {
Dec 05 19:01:11.121 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 19:01:11.121 INFO [stderr] 
Dec 05 19:01:11.447 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
Dec 05 19:01:11.449 INFO [stderr] su: No module specific data is present
Dec 05 19:01:11.768 INFO running `"docker" "inspect" "e8c91622d779ff820478a1c6873c1d78c94afff7ad9b7d99d07c8677613fd0a1"`
Dec 05 19:01:11.894 INFO running `"docker" "rm" "-f" "e8c91622d779ff820478a1c6873c1d78c94afff7ad9b7d99d07c8677613fd0a1"`
Dec 05 19:01:12.020 INFO [stdout] e8c91622d779ff820478a1c6873c1d78c94afff7ad9b7d99d07c8677613fd0a1
Dec 05 19:01:12.022 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-5/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-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 05 19:01:12.440 INFO [stdout] 52edfb056d5afc3698adf129d8afeaa790cb4658582c8e7dd2dca32c8bbefd3a
Dec 05 19:01:12.445 INFO running `"docker" "start" "-a" "52edfb056d5afc3698adf129d8afeaa790cb4658582c8e7dd2dca32c8bbefd3a"`
Dec 05 19:01:12.873 INFO [stderr] usermod: no changes
Dec 05 19:01:12.899 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Dec 05 19:01:12.899 INFO [stderr]      Running /target/debug/deps/rust_datastructures-c80e2318e330d9c4
Dec 05 19:01:12.901 INFO [stdout] 
Dec 05 19:01:12.901 INFO [stdout] running 0 tests
Dec 05 19:01:12.901 INFO [stdout] 
Dec 05 19:01:12.901 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 05 19:01:12.901 INFO [stdout] 
Dec 05 19:01:12.903 INFO [stderr] su: No module specific data is present
Dec 05 19:01:13.122 INFO running `"docker" "inspect" "52edfb056d5afc3698adf129d8afeaa790cb4658582c8e7dd2dca32c8bbefd3a"`
Dec 05 19:01:13.214 INFO running `"docker" "rm" "-f" "52edfb056d5afc3698adf129d8afeaa790cb4658582c8e7dd2dca32c8bbefd3a"`
Dec 05 19:01:13.316 INFO [stdout] 52edfb056d5afc3698adf129d8afeaa790cb4658582c8e7dd2dca32c8bbefd3a