Dec 13 14:40:40.752 INFO testing jxcl/rdb against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 14:40:40.752 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 14:40:41.475 INFO [stdout] c15d789c43ffc4a193ca5567158e9e9c901ae8b38e3fab223427cc618362ace6
Dec 13 14:40:41.477 INFO running `"docker" "start" "-a" "c15d789c43ffc4a193ca5567158e9e9c901ae8b38e3fab223427cc618362ace6"`
Dec 13 14:40:43.160 INFO [stderr] usermod: no changes
Dec 13 14:40:43.247 INFO [stderr]    Compiling rdb v0.1.0 (/source)
Dec 13 14:40:43.609 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 13 14:40:43.609 INFO [stderr]  --> src/connection.rs:1:5
Dec 13 14:40:43.609 INFO [stderr]   |
Dec 13 14:40:43.609 INFO [stderr] 1 | use std::collections::HashMap;
Dec 13 14:40:43.609 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 14:40:43.609 INFO [stderr]   |
Dec 13 14:40:43.609 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 14:40:43.609 INFO [stderr] 
Dec 13 14:40:43.707 INFO [stderr] warning: unused variable: `key`
Dec 13 14:40:43.707 INFO [stderr]   --> src/connection.rs:66:19
Dec 13 14:40:43.707 INFO [stderr]    |
Dec 13 14:40:43.707 INFO [stderr] 66 |     fn get(&self, key: &str) -> Option<&String> {
Dec 13 14:40:43.707 INFO [stderr]    |                   ^^^ help: consider using `_key` instead
Dec 13 14:40:43.707 INFO [stderr]    |
Dec 13 14:40:43.711 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 14:40:43.711 INFO [stderr] 
Dec 13 14:40:43.711 INFO [stderr] warning: unused variable: `i`
Dec 13 14:40:43.711 INFO [stderr]   --> src/btree.rs:97:13
Dec 13 14:40:43.711 INFO [stderr]    |
Dec 13 14:40:43.711 INFO [stderr] 97 |         for i in 0..right_pad_members {
Dec 13 14:40:43.711 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 13 14:40:43.711 INFO [stderr] 
Dec 13 14:40:43.712 INFO [stderr] warning: unused variable: `key`
Dec 13 14:40:43.712 INFO [stderr]    --> src/btree.rs:195:37
Dec 13 14:40:43.712 INFO [stderr]     |
Dec 13 14:40:43.712 INFO [stderr] 195 |     fn search_for_insert(&mut self, key: &str, index: u32) -> Result<TreeNode, io::Error> {
Dec 13 14:40:43.712 INFO [stderr]     |                                     ^^^ help: consider using `_key` instead
Dec 13 14:40:43.712 INFO [stderr] 
Dec 13 14:40:43.745 INFO [stderr] warning: field is never used: `root_node`
Dec 13 14:40:43.745 INFO [stderr]    --> src/btree.rs:151:5
Dec 13 14:40:43.745 INFO [stderr]     |
Dec 13 14:40:43.745 INFO [stderr] 151 |     root_node: TreeNode,
Dec 13 14:40:43.746 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^
Dec 13 14:40:43.746 INFO [stderr]     |
Dec 13 14:40:43.746 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 13 14:40:43.746 INFO [stderr] 
Dec 13 14:40:43.747 INFO [stderr] warning: method is never used: `open`
Dec 13 14:40:43.747 INFO [stderr]    --> src/btree.rs:156:5
Dec 13 14:40:43.747 INFO [stderr]     |
Dec 13 14:40:43.747 INFO [stderr] 156 |     pub fn open(filename: &str) -> Result<BTree, io::Error> {
Dec 13 14:40:43.747 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 14:40:43.747 INFO [stderr] 
Dec 13 14:40:44.434 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
Dec 13 14:40:44.435 INFO [stderr] su: No module specific data is present
Dec 13 14:40:44.824 INFO running `"docker" "inspect" "c15d789c43ffc4a193ca5567158e9e9c901ae8b38e3fab223427cc618362ace6"`
Dec 13 14:40:44.969 INFO running `"docker" "rm" "-f" "c15d789c43ffc4a193ca5567158e9e9c901ae8b38e3fab223427cc618362ace6"`
Dec 13 14:40:45.247 INFO [stdout] c15d789c43ffc4a193ca5567158e9e9c901ae8b38e3fab223427cc618362ace6
Dec 13 14:40:45.249 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-6/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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 13 14:40:45.561 INFO [stdout] 4461faf7b47d5e1e22c7d9b24978b67bc85e39160dcdaa9762726665fd6d7429
Dec 13 14:40:45.564 INFO running `"docker" "start" "-a" "4461faf7b47d5e1e22c7d9b24978b67bc85e39160dcdaa9762726665fd6d7429"`
Dec 13 14:40:46.490 INFO [stderr] usermod: no changes
Dec 13 14:40:46.528 INFO [stderr]    Compiling rdb v0.1.0 (/source)
Dec 13 14:40:46.895 INFO [stderr] warning: unused import: `std::collections::HashMap`
Dec 13 14:40:46.895 INFO [stderr]  --> src/connection.rs:1:5
Dec 13 14:40:46.895 INFO [stderr]   |
Dec 13 14:40:46.895 INFO [stderr] 1 | use std::collections::HashMap;
Dec 13 14:40:46.895 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 14:40:46.895 INFO [stderr]   |
Dec 13 14:40:46.895 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 14:40:46.895 INFO [stderr] 
Dec 13 14:40:46.971 INFO [stderr] warning: unused variable: `key`
Dec 13 14:40:46.971 INFO [stderr]   --> src/connection.rs:66:19
Dec 13 14:40:46.971 INFO [stderr]    |
Dec 13 14:40:46.971 INFO [stderr] 66 |     fn get(&self, key: &str) -> Option<&String> {
Dec 13 14:40:46.971 INFO [stderr]    |                   ^^^ help: consider using `_key` instead
Dec 13 14:40:46.971 INFO [stderr]    |
Dec 13 14:40:46.971 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 14:40:46.971 INFO [stderr] 
Dec 13 14:40:46.974 INFO [stderr] warning: unused variable: `i`
Dec 13 14:40:46.974 INFO [stderr]   --> src/btree.rs:97:13
Dec 13 14:40:46.974 INFO [stderr]    |
Dec 13 14:40:46.974 INFO [stderr] 97 |         for i in 0..right_pad_members {
Dec 13 14:40:46.974 INFO [stderr]    |             ^ help: consider using `_i` instead
Dec 13 14:40:46.974 INFO [stderr] 
Dec 13 14:40:46.974 INFO [stderr] warning: unused variable: `key`
Dec 13 14:40:46.974 INFO [stderr]    --> src/btree.rs:195:37
Dec 13 14:40:46.974 INFO [stderr]     |
Dec 13 14:40:46.974 INFO [stderr] 195 |     fn search_for_insert(&mut self, key: &str, index: u32) -> Result<TreeNode, io::Error> {
Dec 13 14:40:46.974 INFO [stderr]     |                                     ^^^ help: consider using `_key` instead
Dec 13 14:40:46.974 INFO [stderr] 
Dec 13 14:40:47.010 INFO [stderr] warning: method is never used: `open`
Dec 13 14:40:47.010 INFO [stderr]    --> src/btree.rs:156:5
Dec 13 14:40:47.010 INFO [stderr]     |
Dec 13 14:40:47.010 INFO [stderr] 156 |     pub fn open(filename: &str) -> Result<BTree, io::Error> {
Dec 13 14:40:47.010 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 14:40:47.010 INFO [stderr]     |
Dec 13 14:40:47.010 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 13 14:40:47.010 INFO [stderr] 
Dec 13 14:40:47.770 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
Dec 13 14:40:47.771 INFO [stderr] su: No module specific data is present
Dec 13 14:40:48.292 INFO running `"docker" "inspect" "4461faf7b47d5e1e22c7d9b24978b67bc85e39160dcdaa9762726665fd6d7429"`
Dec 13 14:40:48.366 INFO running `"docker" "rm" "-f" "4461faf7b47d5e1e22c7d9b24978b67bc85e39160dcdaa9762726665fd6d7429"`
Dec 13 14:40:48.452 INFO [stdout] 4461faf7b47d5e1e22c7d9b24978b67bc85e39160dcdaa9762726665fd6d7429