Dec 19 21:30:57.365 INFO checking Twizty/kv against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 21:30:57.387 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/Twizty/kv:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:30:57.978 INFO [stdout] 207173ae9470229c49c20a55b752421a40cc2956d36e74412a18cedf902370af
Dec 19 21:30:57.978 INFO running `"docker" "start" "-a" "207173ae9470229c49c20a55b752421a40cc2956d36e74412a18cedf902370af"`
Dec 19 21:31:00.084 INFO [stderr]     Checking kv v0.1.0 (/opt/crater/workdir)
Dec 19 21:31:00.556 INFO [stderr] warning: unused import: `super::*`
Dec 19 21:31:00.556 INFO [stderr]    --> src/store/mod.rs:247:7
Dec 19 21:31:00.556 INFO [stderr]     |
Dec 19 21:31:00.556 INFO [stderr] 247 |   use super::*;
Dec 19 21:31:00.556 INFO [stderr]     |       ^^^^^^^^
Dec 19 21:31:00.556 INFO [stderr]     |
Dec 19 21:31:00.556 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Dec 19 21:31:00.556 INFO [stderr] 
Dec 19 21:31:00.556 INFO [stderr] warning: unused import: `std::thread::sleep`
Dec 19 21:31:00.556 INFO [stderr]    --> src/store/mod.rs:248:7
Dec 19 21:31:00.556 INFO [stderr]     |
Dec 19 21:31:00.556 INFO [stderr] 248 |   use std::thread::sleep;
Dec 19 21:31:00.556 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.556 INFO [stderr] 
Dec 19 21:31:00.556 INFO [stderr] warning: unused import: `Duration`
Dec 19 21:31:00.556 INFO [stderr]    --> src/store/mod.rs:249:19
Dec 19 21:31:00.556 INFO [stderr]     |
Dec 19 21:31:00.556 INFO [stderr] 249 |   use std::time::{Duration};
Dec 19 21:31:00.556 INFO [stderr]     |                   ^^^^^^^^
Dec 19 21:31:00.556 INFO [stderr] 
Dec 19 21:31:00.704 INFO [stderr] warning: variable does not need to be mutable
Dec 19 21:31:00.704 INFO [stderr]   --> src/store/mod.rs:85:9
Dec 19 21:31:00.704 INFO [stderr]    |
Dec 19 21:31:00.704 INFO [stderr] 85 |     let mut value = self.store.entry(key.clone()).or_insert(V::ListValue(Vec::new()));
Dec 19 21:31:00.704 INFO [stderr]    |         ----^^^^^
Dec 19 21:31:00.704 INFO [stderr]    |         |
Dec 19 21:31:00.704 INFO [stderr]    |         help: remove this `mut`
Dec 19 21:31:00.704 INFO [stderr]    |
Dec 19 21:31:00.704 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 21:31:00.704 INFO [stderr] 
Dec 19 21:31:00.720 INFO [stderr] warning: variable does not need to be mutable
Dec 19 21:31:00.720 INFO [stderr]    --> src/store/mod.rs:193:9
Dec 19 21:31:00.720 INFO [stderr]     |
Dec 19 21:31:00.720 INFO [stderr] 193 |     let mut value = self.store.entry(key.clone()).or_insert(V::HashValue(HashMap::new()));
Dec 19 21:31:00.720 INFO [stderr]     |         ----^^^^^
Dec 19 21:31:00.720 INFO [stderr]     |         |
Dec 19 21:31:00.720 INFO [stderr]     |         help: remove this `mut`
Dec 19 21:31:00.720 INFO [stderr] 
Dec 19 21:31:00.720 INFO [stderr] warning: constant item is never used: `TYPE_MISSMATCH_ERROR`
Dec 19 21:31:00.720 INFO [stderr]  --> src/store/mod.rs:6:1
Dec 19 21:31:00.720 INFO [stderr]   |
Dec 19 21:31:00.721 INFO [stderr] 6 | const TYPE_MISSMATCH_ERROR: &'static str = "Type missmatch for the key";
Dec 19 21:31:00.721 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.721 INFO [stderr]   |
Dec 19 21:31:00.721 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 21:31:00.721 INFO [stderr] 
Dec 19 21:31:00.721 INFO [stderr] warning: constant item is never used: `KEY_NOT_FOUND_ERROR`
Dec 19 21:31:00.721 INFO [stderr]  --> src/store/mod.rs:7:1
Dec 19 21:31:00.721 INFO [stderr]   |
Dec 19 21:31:00.721 INFO [stderr] 7 | const KEY_NOT_FOUND_ERROR: &'static str = "Key not found";
Dec 19 21:31:00.721 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.721 INFO [stderr] 
Dec 19 21:31:00.721 INFO [stderr] warning: constant item is never used: `INDEX_OUT_OF_RANGE_ERROR`
Dec 19 21:31:00.721 INFO [stderr]  --> src/store/mod.rs:8:1
Dec 19 21:31:00.721 INFO [stderr]   |
Dec 19 21:31:00.722 INFO [stderr] 8 | const INDEX_OUT_OF_RANGE_ERROR: &'static str = "Index is out of range";
Dec 19 21:31:00.722 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.722 INFO [stderr] 
Dec 19 21:31:00.722 INFO [stderr] warning: type alias is never used: `StringValue`
Dec 19 21:31:00.722 INFO [stderr]   --> src/store/mod.rs:10:1
Dec 19 21:31:00.722 INFO [stderr]    |
Dec 19 21:31:00.722 INFO [stderr] 10 | type StringValue = String;
Dec 19 21:31:00.722 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.722 INFO [stderr] 
Dec 19 21:31:00.722 INFO [stderr] warning: type alias is never used: `ListValue`
Dec 19 21:31:00.722 INFO [stderr]   --> src/store/mod.rs:11:1
Dec 19 21:31:00.722 INFO [stderr]    |
Dec 19 21:31:00.722 INFO [stderr] 11 | type ListValue = Vec<String>;
Dec 19 21:31:00.723 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.723 INFO [stderr] 
Dec 19 21:31:00.723 INFO [stderr] warning: type alias is never used: `HashValue`
Dec 19 21:31:00.723 INFO [stderr]   --> src/store/mod.rs:12:1
Dec 19 21:31:00.723 INFO [stderr]    |
Dec 19 21:31:00.723 INFO [stderr] 12 | type HashValue = HashMap<String, String>;
Dec 19 21:31:00.723 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.723 INFO [stderr] 
Dec 19 21:31:00.723 INFO [stderr] warning: enum is never used: `V`
Dec 19 21:31:00.723 INFO [stderr]   --> src/store/mod.rs:14:1
Dec 19 21:31:00.723 INFO [stderr]    |
Dec 19 21:31:00.723 INFO [stderr] 14 | enum V {
Dec 19 21:31:00.723 INFO [stderr]    | ^^^^^^
Dec 19 21:31:00.723 INFO [stderr] 
Dec 19 21:31:00.723 INFO [stderr] warning: struct is never constructed: `Store`
Dec 19 21:31:00.724 INFO [stderr]   --> src/store/mod.rs:20:1
Dec 19 21:31:00.724 INFO [stderr]    |
Dec 19 21:31:00.724 INFO [stderr] 20 | pub struct Store {
Dec 19 21:31:00.724 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 19 21:31:00.724 INFO [stderr] 
Dec 19 21:31:00.724 INFO [stderr] warning: function is never used: `drop_if_expired`
Dec 19 21:31:00.724 INFO [stderr]   --> src/store/mod.rs:26:1
Dec 19 21:31:00.724 INFO [stderr]    |
Dec 19 21:31:00.724 INFO [stderr] 26 | fn drop_if_expired(e: Entry<String, Instant>, store: &mut HashMap<String, V>) -> Option<()> {
Dec 19 21:31:00.724 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.724 INFO [stderr] 
Dec 19 21:31:00.724 INFO [stderr] warning: method is never used: `new`
Dec 19 21:31:00.724 INFO [stderr]   --> src/store/mod.rs:41:3
Dec 19 21:31:00.725 INFO [stderr]    |
Dec 19 21:31:00.725 INFO [stderr] 41 |   pub fn new() -> Store {
Dec 19 21:31:00.725 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.725 INFO [stderr] 
Dec 19 21:31:00.725 INFO [stderr] warning: method is never used: `get`
Dec 19 21:31:00.725 INFO [stderr]   --> src/store/mod.rs:49:3
Dec 19 21:31:00.725 INFO [stderr]    |
Dec 19 21:31:00.725 INFO [stderr] 49 |   pub fn get(&mut self, key: String) -> Option<&String> {
Dec 19 21:31:00.725 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.725 INFO [stderr] 
Dec 19 21:31:00.725 INFO [stderr] warning: method is never used: `set`
Dec 19 21:31:00.725 INFO [stderr]   --> src/store/mod.rs:68:3
Dec 19 21:31:00.725 INFO [stderr]    |
Dec 19 21:31:00.726 INFO [stderr] 68 |   pub fn set(&mut self, key: String, val: String) {
Dec 19 21:31:00.726 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.726 INFO [stderr] 
Dec 19 21:31:00.726 INFO [stderr] warning: method is never used: `expire`
Dec 19 21:31:00.726 INFO [stderr]   --> src/store/mod.rs:74:3
Dec 19 21:31:00.726 INFO [stderr]    |
Dec 19 21:31:00.726 INFO [stderr] 74 |   pub fn expire(&mut self, key: String, at: Instant) {
Dec 19 21:31:00.726 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.726 INFO [stderr] 
Dec 19 21:31:00.726 INFO [stderr] warning: method is never used: `l_append`
Dec 19 21:31:00.726 INFO [stderr]   --> src/store/mod.rs:80:3
Dec 19 21:31:00.726 INFO [stderr]    |
Dec 19 21:31:00.726 INFO [stderr] 80 |   pub fn l_append(&mut self, key: String, val: String) -> Result<(), &'static str> {
Dec 19 21:31:00.726 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.726 INFO [stderr] 
Dec 19 21:31:00.727 INFO [stderr] warning: method is never used: `l_get`
Dec 19 21:31:00.727 INFO [stderr]   --> src/store/mod.rs:95:3
Dec 19 21:31:00.727 INFO [stderr]    |
Dec 19 21:31:00.727 INFO [stderr] 95 |   pub fn l_get(&mut self, key: String, index: &usize) -> Option<&String> {
Dec 19 21:31:00.727 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.727 INFO [stderr] 
Dec 19 21:31:00.727 INFO [stderr] warning: method is never used: `l_getall`
Dec 19 21:31:00.727 INFO [stderr]    --> src/store/mod.rs:113:3
Dec 19 21:31:00.727 INFO [stderr]     |
Dec 19 21:31:00.727 INFO [stderr] 113 |   pub fn l_getall(&mut self, key: String) -> Option<&Vec<String>> {
Dec 19 21:31:00.727 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.727 INFO [stderr] 
Dec 19 21:31:00.727 INFO [stderr] warning: method is never used: `l_insert`
Dec 19 21:31:00.727 INFO [stderr]    --> src/store/mod.rs:131:3
Dec 19 21:31:00.728 INFO [stderr]     |
Dec 19 21:31:00.728 INFO [stderr] 131 |   pub fn l_insert(&mut self, key: String, index: &usize, val: String) -> Result<(), &'static str> {
Dec 19 21:31:00.728 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.728 INFO [stderr] 
Dec 19 21:31:00.728 INFO [stderr] warning: method is never used: `drop`
Dec 19 21:31:00.728 INFO [stderr]    --> src/store/mod.rs:156:3
Dec 19 21:31:00.728 INFO [stderr]     |
Dec 19 21:31:00.728 INFO [stderr] 156 |   pub fn drop(&mut self, key: String) {
Dec 19 21:31:00.728 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.728 INFO [stderr] 
Dec 19 21:31:00.728 INFO [stderr] warning: method is never used: `l_drop`
Dec 19 21:31:00.728 INFO [stderr]    --> src/store/mod.rs:163:3
Dec 19 21:31:00.728 INFO [stderr]     |
Dec 19 21:31:00.728 INFO [stderr] 163 |   pub fn l_drop(&mut self, key: String, index: &usize) -> Result<(), &'static str> {
Dec 19 21:31:00.728 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.728 INFO [stderr] 
Dec 19 21:31:00.728 INFO [stderr] warning: method is never used: `h_set`
Dec 19 21:31:00.728 INFO [stderr]    --> src/store/mod.rs:188:3
Dec 19 21:31:00.728 INFO [stderr]     |
Dec 19 21:31:00.728 INFO [stderr] 188 |   pub fn h_set(&mut self, key: String, h_key: String, val: String) -> Result<(), &'static str> {
Dec 19 21:31:00.728 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.728 INFO [stderr] 
Dec 19 21:31:00.728 INFO [stderr] warning: method is never used: `h_get`
Dec 19 21:31:00.728 INFO [stderr]    --> src/store/mod.rs:203:3
Dec 19 21:31:00.728 INFO [stderr]     |
Dec 19 21:31:00.729 INFO [stderr] 203 |   pub fn h_get(&mut self, key: String, h_key: String) -> Option<&String> {
Dec 19 21:31:00.729 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.729 INFO [stderr] 
Dec 19 21:31:00.729 INFO [stderr] warning: method is never used: `h_getall`
Dec 19 21:31:00.729 INFO [stderr]    --> src/store/mod.rs:226:3
Dec 19 21:31:00.729 INFO [stderr]     |
Dec 19 21:31:00.729 INFO [stderr] 226 |   pub fn h_getall(&mut self, key: String) -> Option<&HashMap<String, String>> {
Dec 19 21:31:00.729 INFO [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.729 INFO [stderr] 
Dec 19 21:31:00.764 INFO [stderr] warning: variable does not need to be mutable
Dec 19 21:31:00.764 INFO [stderr]   --> src/store/mod.rs:85:9
Dec 19 21:31:00.764 INFO [stderr]    |
Dec 19 21:31:00.765 INFO [stderr] 85 |     let mut value = self.store.entry(key.clone()).or_insert(V::ListValue(Vec::new()));
Dec 19 21:31:00.765 INFO [stderr]    |         ----^^^^^
Dec 19 21:31:00.765 INFO [stderr]    |         |
Dec 19 21:31:00.765 INFO [stderr]    |         help: remove this `mut`
Dec 19 21:31:00.779 INFO [stderr]    |
Dec 19 21:31:00.779 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 21:31:00.779 INFO [stderr] 
Dec 19 21:31:00.797 INFO [stderr] warning: variable does not need to be mutable
Dec 19 21:31:00.797 INFO [stderr]    --> src/store/mod.rs:193:9
Dec 19 21:31:00.797 INFO [stderr]     |
Dec 19 21:31:00.797 INFO [stderr] 193 |     let mut value = self.store.entry(key.clone()).or_insert(V::HashValue(HashMap::new()));
Dec 19 21:31:00.797 INFO [stderr]     |         ----^^^^^
Dec 19 21:31:00.797 INFO [stderr]     |         |
Dec 19 21:31:00.797 INFO [stderr]     |         help: remove this `mut`
Dec 19 21:31:00.797 INFO [stderr] 
Dec 19 21:31:00.857 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:31:00.858 INFO [stderr]    --> src/store/mod.rs:313:5
Dec 19 21:31:00.858 INFO [stderr]     |
Dec 19 21:31:00.858 INFO [stderr] 313 |     s.l_append(key.to_string(), new_value.to_string());
Dec 19 21:31:00.858 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.858 INFO [stderr]     |
Dec 19 21:31:00.858 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 21:31:00.858 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:31:00.858 INFO [stderr] 
Dec 19 21:31:00.858 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:31:00.858 INFO [stderr]    --> src/store/mod.rs:325:5
Dec 19 21:31:00.858 INFO [stderr]     |
Dec 19 21:31:00.858 INFO [stderr] 325 |     s.l_append(key.to_string(), value1.to_string());
Dec 19 21:31:00.858 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.858 INFO [stderr]     |
Dec 19 21:31:00.858 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:31:00.858 INFO [stderr] 
Dec 19 21:31:00.858 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:31:00.858 INFO [stderr]    --> src/store/mod.rs:326:5
Dec 19 21:31:00.858 INFO [stderr]     |
Dec 19 21:31:00.858 INFO [stderr] 326 |     s.l_append(key.to_string(), value2.to_string());
Dec 19 21:31:00.858 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.858 INFO [stderr]     |
Dec 19 21:31:00.858 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:31:00.858 INFO [stderr] 
Dec 19 21:31:00.858 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:31:00.858 INFO [stderr]    --> src/store/mod.rs:341:5
Dec 19 21:31:00.858 INFO [stderr]     |
Dec 19 21:31:00.859 INFO [stderr] 341 |     s.l_append(key.to_string(), value1.to_string());
Dec 19 21:31:00.859 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.859 INFO [stderr]     |
Dec 19 21:31:00.859 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:31:00.859 INFO [stderr] 
Dec 19 21:31:00.859 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:31:00.859 INFO [stderr]    --> src/store/mod.rs:342:5
Dec 19 21:31:00.859 INFO [stderr]     |
Dec 19 21:31:00.859 INFO [stderr] 342 |     s.l_append(key.to_string(), value2.to_string());
Dec 19 21:31:00.859 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.859 INFO [stderr]     |
Dec 19 21:31:00.859 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:31:00.859 INFO [stderr] 
Dec 19 21:31:00.859 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:31:00.859 INFO [stderr]    --> src/store/mod.rs:343:5
Dec 19 21:31:00.859 INFO [stderr]     |
Dec 19 21:31:00.859 INFO [stderr] 343 |     s.l_insert(key.to_string(), &0, value3.to_string());
Dec 19 21:31:00.859 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.859 INFO [stderr]     |
Dec 19 21:31:00.859 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:31:00.859 INFO [stderr] 
Dec 19 21:31:00.859 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:31:00.859 INFO [stderr]    --> src/store/mod.rs:374:5
Dec 19 21:31:00.859 INFO [stderr]     |
Dec 19 21:31:00.859 INFO [stderr] 374 |     s.l_append(key.to_string(), value.to_string());
Dec 19 21:31:00.859 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.859 INFO [stderr]     |
Dec 19 21:31:00.859 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:31:00.859 INFO [stderr] 
Dec 19 21:31:00.859 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:31:00.859 INFO [stderr]    --> src/store/mod.rs:377:7
Dec 19 21:31:00.859 INFO [stderr]     |
Dec 19 21:31:00.859 INFO [stderr] 377 |       s.l_drop(key.to_string(), &0);
Dec 19 21:31:00.859 INFO [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.859 INFO [stderr]     |
Dec 19 21:31:00.859 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:31:00.859 INFO [stderr] 
Dec 19 21:31:00.860 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:31:00.860 INFO [stderr]    --> src/store/mod.rs:407:5
Dec 19 21:31:00.860 INFO [stderr]     |
Dec 19 21:31:00.860 INFO [stderr] 407 |     s.h_set(key.to_string(), h_key1.to_string(), value1.to_string());
Dec 19 21:31:00.860 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.860 INFO [stderr]     |
Dec 19 21:31:00.860 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:31:00.860 INFO [stderr] 
Dec 19 21:31:00.860 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 21:31:00.860 INFO [stderr]    --> src/store/mod.rs:415:5
Dec 19 21:31:00.860 INFO [stderr]     |
Dec 19 21:31:00.860 INFO [stderr] 415 |     s.h_set(key.to_string(), h_key2.to_string(), value2.to_string());
Dec 19 21:31:00.860 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 21:31:00.860 INFO [stderr]     |
Dec 19 21:31:00.860 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 21:31:00.860 INFO [stderr] 
Dec 19 21:31:00.927 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
Dec 19 21:31:02.100 INFO running `"docker" "inspect" "207173ae9470229c49c20a55b752421a40cc2956d36e74412a18cedf902370af"`
Dec 19 21:31:02.342 INFO running `"docker" "rm" "-f" "207173ae9470229c49c20a55b752421a40cc2956d36e74412a18cedf902370af"`
Dec 19 21:31:02.704 INFO [stdout] 207173ae9470229c49c20a55b752421a40cc2956d36e74412a18cedf902370af