Nov 16 22:58:20.099 INFO testing jzw2/rust-data-structures against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 16 22:58:20.099 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-0/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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 16 22:58:20.348 INFO [stdout] 821438b459a134b104845b31fcb0f943c78c465f5c4933df4609d4051770d10e
Nov 16 22:58:20.348 INFO running `"docker" "start" "-a" "821438b459a134b104845b31fcb0f943c78c465f5c4933df4609d4051770d10e"`
Nov 16 22:58:21.064 INFO [stderr] usermod: no changes
Nov 16 22:58:21.119 INFO [stderr]    Compiling rust-datastructures v0.1.0 (/source)
Nov 16 22:58:21.451 INFO [stderr] warning: unused variable: `key`
Nov 16 22:58:21.451 INFO [stderr]   --> src/main.rs:21:20
Nov 16 22:58:21.451 INFO [stderr]    |
Nov 16 22:58:21.451 INFO [stderr] 21 |     fn find(&self, key: usize) -> Option<&T> {
Nov 16 22:58:21.451 INFO [stderr]    |                    ^^^ help: consider using `_key` instead
Nov 16 22:58:21.451 INFO [stderr]    |
Nov 16 22:58:21.451 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 16 22:58:21.451 INFO [stderr] 
Nov 16 22:58:21.451 INFO [stderr] warning: unused variable: `key`
Nov 16 22:58:21.451 INFO [stderr]   --> src/main.rs:75:26
Nov 16 22:58:21.451 INFO [stderr]    |
Nov 16 22:58:21.451 INFO [stderr] 75 |     fn delete(&mut self, key: usize) {
Nov 16 22:58:21.452 INFO [stderr]    |                          ^^^ help: consider using `_key` instead
Nov 16 22:58:21.452 INFO [stderr] 
Nov 16 22:58:21.455 INFO [stderr] warning: field is never used: `data`
Nov 16 22:58:21.455 INFO [stderr]  --> src/main.rs:2:5
Nov 16 22:58:21.455 INFO [stderr]   |
Nov 16 22:58:21.455 INFO [stderr] 2 |     data: Vec<Node<T>>,
Nov 16 22:58:21.455 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Nov 16 22:58:21.455 INFO [stderr]   |
Nov 16 22:58:21.455 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 16 22:58:21.455 INFO [stderr] 
Nov 16 22:58:21.455 INFO [stderr] warning: field is never used: `root`
Nov 16 22:58:21.455 INFO [stderr]  --> src/main.rs:4:5
Nov 16 22:58:21.455 INFO [stderr]   |
Nov 16 22:58:21.455 INFO [stderr] 4 |     root: Option<usize>,
Nov 16 22:58:21.455 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 16 22:58:21.455 INFO [stderr] 
Nov 16 22:58:21.455 INFO [stderr] warning: field is never used: `key`
Nov 16 22:58:21.455 INFO [stderr]  --> src/main.rs:8:5
Nov 16 22:58:21.455 INFO [stderr]   |
Nov 16 22:58:21.455 INFO [stderr] 8 |     key: usize,
Nov 16 22:58:21.455 INFO [stderr]   |     ^^^^^^^^^^
Nov 16 22:58:21.455 INFO [stderr] 
Nov 16 22:58:21.455 INFO [stderr] warning: field is never used: `value`
Nov 16 22:58:21.455 INFO [stderr]  --> src/main.rs:9:5
Nov 16 22:58:21.455 INFO [stderr]   |
Nov 16 22:58:21.455 INFO [stderr] 9 |     value: T,
Nov 16 22:58:21.455 INFO [stderr]   |     ^^^^^^^^
Nov 16 22:58:21.455 INFO [stderr] 
Nov 16 22:58:21.455 INFO [stderr] warning: field is never used: `left`
Nov 16 22:58:21.455 INFO [stderr]   --> src/main.rs:10:5
Nov 16 22:58:21.455 INFO [stderr]    |
Nov 16 22:58:21.455 INFO [stderr] 10 |     left: Option<usize>,
Nov 16 22:58:21.460 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 16 22:58:21.460 INFO [stderr] 
Nov 16 22:58:21.460 INFO [stderr] warning: field is never used: `right`
Nov 16 22:58:21.460 INFO [stderr]   --> src/main.rs:11:5
Nov 16 22:58:21.460 INFO [stderr]    |
Nov 16 22:58:21.460 INFO [stderr] 11 |     right: Option<usize>,
Nov 16 22:58:21.460 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Nov 16 22:58:21.460 INFO [stderr] 
Nov 16 22:58:21.460 INFO [stderr] warning: method is never used: `new`
Nov 16 22:58:21.460 INFO [stderr]   --> src/main.rs:18:5
Nov 16 22:58:21.460 INFO [stderr]    |
Nov 16 22:58:21.463 INFO [stderr] 18 |     fn new() {
Nov 16 22:58:21.463 INFO [stderr]    |     ^^^^^^^^
Nov 16 22:58:21.463 INFO [stderr] 
Nov 16 22:58:21.463 INFO [stderr] warning: method is never used: `find`
Nov 16 22:58:21.463 INFO [stderr]   --> src/main.rs:21:5
Nov 16 22:58:21.463 INFO [stderr]    |
Nov 16 22:58:21.463 INFO [stderr] 21 |     fn find(&self, key: usize) -> Option<&T> {
Nov 16 22:58:21.463 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 22:58:21.463 INFO [stderr] 
Nov 16 22:58:21.463 INFO [stderr] warning: method is never used: `insert`
Nov 16 22:58:21.463 INFO [stderr]   --> src/main.rs:27:5
Nov 16 22:58:21.463 INFO [stderr]    |
Nov 16 22:58:21.463 INFO [stderr] 27 |     fn insert(&mut self, key: usize, value: T) {
Nov 16 22:58:21.463 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 22:58:21.463 INFO [stderr] 
Nov 16 22:58:21.463 INFO [stderr] warning: method is never used: `delete`
Nov 16 22:58:21.463 INFO [stderr]   --> src/main.rs:75:5
Nov 16 22:58:21.463 INFO [stderr]    |
Nov 16 22:58:21.463 INFO [stderr] 75 |     fn delete(&mut self, key: usize) {
Nov 16 22:58:21.463 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 22:58:21.463 INFO [stderr] 
Nov 16 22:58:21.736 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
Nov 16 22:58:21.739 INFO [stderr] su: No module specific data is present
Nov 16 22:58:22.634 INFO running `"docker" "inspect" "821438b459a134b104845b31fcb0f943c78c465f5c4933df4609d4051770d10e"`
Nov 16 22:58:22.931 INFO running `"docker" "rm" "-f" "821438b459a134b104845b31fcb0f943c78c465f5c4933df4609d4051770d10e"`
Nov 16 22:58:23.191 INFO [stdout] 821438b459a134b104845b31fcb0f943c78c465f5c4933df4609d4051770d10e
Nov 16 22:58:23.202 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-0/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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 16 22:58:23.564 INFO [stdout] 201b725a04b699b672267802919d679fc722bd1950cf11835a5bc478f46b2f61
Nov 16 22:58:23.570 INFO running `"docker" "start" "-a" "201b725a04b699b672267802919d679fc722bd1950cf11835a5bc478f46b2f61"`
Nov 16 22:58:24.335 INFO [stderr] usermod: no changes
Nov 16 22:58:24.383 INFO [stderr]    Compiling rust-datastructures v0.1.0 (/source)
Nov 16 22:58:24.647 INFO [stderr] warning: unused variable: `key`
Nov 16 22:58:24.647 INFO [stderr]   --> src/main.rs:21:20
Nov 16 22:58:24.647 INFO [stderr]    |
Nov 16 22:58:24.647 INFO [stderr] 21 |     fn find(&self, key: usize) -> Option<&T> {
Nov 16 22:58:24.647 INFO [stderr]    |                    ^^^ help: consider using `_key` instead
Nov 16 22:58:24.647 INFO [stderr]    |
Nov 16 22:58:24.647 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 16 22:58:24.647 INFO [stderr] 
Nov 16 22:58:24.647 INFO [stderr] warning: unused variable: `key`
Nov 16 22:58:24.647 INFO [stderr]   --> src/main.rs:75:26
Nov 16 22:58:24.647 INFO [stderr]    |
Nov 16 22:58:24.647 INFO [stderr] 75 |     fn delete(&mut self, key: usize) {
Nov 16 22:58:24.647 INFO [stderr]    |                          ^^^ help: consider using `_key` instead
Nov 16 22:58:24.647 INFO [stderr] 
Nov 16 22:58:24.655 INFO [stderr] warning: field is never used: `data`
Nov 16 22:58:24.655 INFO [stderr]  --> src/main.rs:2:5
Nov 16 22:58:24.655 INFO [stderr]   |
Nov 16 22:58:24.655 INFO [stderr] 2 |     data: Vec<Node<T>>,
Nov 16 22:58:24.655 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^
Nov 16 22:58:24.655 INFO [stderr]   |
Nov 16 22:58:24.655 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 16 22:58:24.655 INFO [stderr] 
Nov 16 22:58:24.655 INFO [stderr] warning: field is never used: `root`
Nov 16 22:58:24.655 INFO [stderr]  --> src/main.rs:4:5
Nov 16 22:58:24.655 INFO [stderr]   |
Nov 16 22:58:24.655 INFO [stderr] 4 |     root: Option<usize>,
Nov 16 22:58:24.655 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^
Nov 16 22:58:24.655 INFO [stderr] 
Nov 16 22:58:24.655 INFO [stderr] warning: field is never used: `key`
Nov 16 22:58:24.655 INFO [stderr]  --> src/main.rs:8:5
Nov 16 22:58:24.655 INFO [stderr]   |
Nov 16 22:58:24.655 INFO [stderr] 8 |     key: usize,
Nov 16 22:58:24.655 INFO [stderr]   |     ^^^^^^^^^^
Nov 16 22:58:24.655 INFO [stderr] 
Nov 16 22:58:24.655 INFO [stderr] warning: field is never used: `value`
Nov 16 22:58:24.655 INFO [stderr]  --> src/main.rs:9:5
Nov 16 22:58:24.655 INFO [stderr]   |
Nov 16 22:58:24.655 INFO [stderr] 9 |     value: T,
Nov 16 22:58:24.655 INFO [stderr]   |     ^^^^^^^^
Nov 16 22:58:24.655 INFO [stderr] 
Nov 16 22:58:24.655 INFO [stderr] warning: field is never used: `left`
Nov 16 22:58:24.655 INFO [stderr]   --> src/main.rs:10:5
Nov 16 22:58:24.655 INFO [stderr]    |
Nov 16 22:58:24.655 INFO [stderr] 10 |     left: Option<usize>,
Nov 16 22:58:24.655 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Nov 16 22:58:24.655 INFO [stderr] 
Nov 16 22:58:24.655 INFO [stderr] warning: field is never used: `right`
Nov 16 22:58:24.655 INFO [stderr]   --> src/main.rs:11:5
Nov 16 22:58:24.655 INFO [stderr]    |
Nov 16 22:58:24.655 INFO [stderr] 11 |     right: Option<usize>,
Nov 16 22:58:24.655 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Nov 16 22:58:24.655 INFO [stderr] 
Nov 16 22:58:24.655 INFO [stderr] warning: method is never used: `new`
Nov 16 22:58:24.655 INFO [stderr]   --> src/main.rs:18:5
Nov 16 22:58:24.655 INFO [stderr]    |
Nov 16 22:58:24.655 INFO [stderr] 18 |     fn new() {
Nov 16 22:58:24.655 INFO [stderr]    |     ^^^^^^^^
Nov 16 22:58:24.655 INFO [stderr] 
Nov 16 22:58:24.655 INFO [stderr] warning: method is never used: `find`
Nov 16 22:58:24.655 INFO [stderr]   --> src/main.rs:21:5
Nov 16 22:58:24.655 INFO [stderr]    |
Nov 16 22:58:24.655 INFO [stderr] 21 |     fn find(&self, key: usize) -> Option<&T> {
Nov 16 22:58:24.655 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 22:58:24.655 INFO [stderr] 
Nov 16 22:58:24.655 INFO [stderr] warning: method is never used: `insert`
Nov 16 22:58:24.656 INFO [stderr]   --> src/main.rs:27:5
Nov 16 22:58:24.656 INFO [stderr]    |
Nov 16 22:58:24.656 INFO [stderr] 27 |     fn insert(&mut self, key: usize, value: T) {
Nov 16 22:58:24.656 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 22:58:24.656 INFO [stderr] 
Nov 16 22:58:24.656 INFO [stderr] warning: method is never used: `delete`
Nov 16 22:58:24.656 INFO [stderr]   --> src/main.rs:75:5
Nov 16 22:58:24.656 INFO [stderr]    |
Nov 16 22:58:24.656 INFO [stderr] 75 |     fn delete(&mut self, key: usize) {
Nov 16 22:58:24.656 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 22:58:24.656 INFO [stderr] 
Nov 16 22:58:25.036 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.67s
Nov 16 22:58:25.037 INFO [stderr] su: No module specific data is present
Nov 16 22:58:25.820 INFO running `"docker" "inspect" "201b725a04b699b672267802919d679fc722bd1950cf11835a5bc478f46b2f61"`
Nov 16 22:58:26.053 INFO running `"docker" "rm" "-f" "201b725a04b699b672267802919d679fc722bd1950cf11835a5bc478f46b2f61"`
Nov 16 22:58:26.301 INFO [stdout] 201b725a04b699b672267802919d679fc722bd1950cf11835a5bc478f46b2f61
Nov 16 22:58:26.305 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-0/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/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 +2e026d6e5d7621634147ad4c8074f1d964dbb1be-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 16 22:58:26.694 INFO [stdout] 55eb6b2c04e57f49341d55eb2078260abe8b08377ac526cddecd9fe5f38d6b5c
Nov 16 22:58:26.697 INFO running `"docker" "start" "-a" "55eb6b2c04e57f49341d55eb2078260abe8b08377ac526cddecd9fe5f38d6b5c"`
Nov 16 22:58:27.793 INFO [stderr] usermod: no changes
Nov 16 22:58:27.827 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Nov 16 22:58:27.827 INFO [stderr]      Running /target/debug/deps/rust_datastructures-047e3f5c24359a76
Nov 16 22:58:27.845 INFO [stdout] 
Nov 16 22:58:27.845 INFO [stdout] running 0 tests
Nov 16 22:58:27.845 INFO [stdout] 
Nov 16 22:58:27.845 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 22:58:27.845 INFO [stdout] 
Nov 16 22:58:27.846 INFO [stderr] su: No module specific data is present
Nov 16 22:58:28.207 INFO running `"docker" "inspect" "55eb6b2c04e57f49341d55eb2078260abe8b08377ac526cddecd9fe5f38d6b5c"`
Nov 16 22:58:28.362 INFO running `"docker" "rm" "-f" "55eb6b2c04e57f49341d55eb2078260abe8b08377ac526cddecd9fe5f38d6b5c"`
Nov 16 22:58:28.506 INFO [stdout] 55eb6b2c04e57f49341d55eb2078260abe8b08377ac526cddecd9fe5f38d6b5c