[INFO] cloning repository https://github.com/PoulavBhowmick03/lru_cache
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PoulavBhowmick03/lru_cache" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPoulavBhowmick03%2Flru_cache", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPoulavBhowmick03%2Flru_cache'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] da8eee39a98560f95556bb6d30486b09a9d2985d
[INFO] testing PoulavBhowmick03/lru_cache against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPoulavBhowmick03%2Flru_cache" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/PoulavBhowmick03/lru_cache
[INFO] finished tweaking git repo https://github.com/PoulavBhowmick03/lru_cache
[INFO] tweaked toml for git repo https://github.com/PoulavBhowmick03/lru_cache written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/PoulavBhowmick03/lru_cache on toolchain 9f93af291970322f4f1c6315ccde4d7078201159
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/PoulavBhowmick03/lru_cache already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65409360ef15ae248acc11e1f846d4613f6716dd881850de3deb6eb4856cb2fb
[INFO] running `Command { std: "docker" "start" "-a" "65409360ef15ae248acc11e1f846d4613f6716dd881850de3deb6eb4856cb2fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65409360ef15ae248acc11e1f846d4613f6716dd881850de3deb6eb4856cb2fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65409360ef15ae248acc11e1f846d4613f6716dd881850de3deb6eb4856cb2fb", kill_on_drop: false }`
[INFO] [stdout] 65409360ef15ae248acc11e1f846d4613f6716dd881850de3deb6eb4856cb2fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e3befa6be9e9e4d6391c2edc6aa7d8670f678d148ff98dfb28c827957968e14
[INFO] running `Command { std: "docker" "start" "-a" "5e3befa6be9e9e4d6391c2edc6aa7d8670f678d148ff98dfb28c827957968e14", kill_on_drop: false }`
[INFO] [stderr]    Compiling lru_cache v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `key`, `value`, `prev`, and `next` are never read
[INFO] [stdout]  --> src/list.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Node<K, V> {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 5 |     key: K,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     value: V,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     prev: Option<usize>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     next: Option<usize>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Node` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `nodes`, `head`, and `tail` are never read
[INFO] [stdout]   --> src/list.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct List<K, V> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 13 |     nodes: Vec<Node<K, V>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 14 |     head: Option<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     tail: Option<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `List` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push_front`, `pop_back`, `remove`, and `move_to_front` are never used
[INFO] [stdout]   --> src/list.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<K,V> List<K, V> {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] 19 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn push_front(&mut self, key: K, value: V) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn pop_back(&mut self) -> Option<(K, V)> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     fn remove(&mut self, idx:usize) -> Option<(K, V)> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn move_to_front(&mut self, idx: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `capacity`, `map`, and `list` are never read
[INFO] [stdout]  --> src/cache.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct LruCache<K,V> {
[INFO] [stdout]   |            -------- fields in this struct
[INFO] [stdout] 2 |     capacity: usize,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 3 |     map: std::collections::HashMap<K, usize>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     list: crate::list::List<K, V>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "5e3befa6be9e9e4d6391c2edc6aa7d8670f678d148ff98dfb28c827957968e14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e3befa6be9e9e4d6391c2edc6aa7d8670f678d148ff98dfb28c827957968e14", kill_on_drop: false }`
[INFO] [stdout] 5e3befa6be9e9e4d6391c2edc6aa7d8670f678d148ff98dfb28c827957968e14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1077866cb732ec949b9614485102ad57305007cf627d5b336892207c492762c3
[INFO] running `Command { std: "docker" "start" "-a" "1077866cb732ec949b9614485102ad57305007cf627d5b336892207c492762c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling lru_cache v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `key`, `value`, `prev`, and `next` are never read
[INFO] [stdout]  --> src/list.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Node<K, V> {
[INFO] [stdout]   |            ---- fields in this struct
[INFO] [stdout] 5 |     key: K,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     value: V,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     prev: Option<usize>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     next: Option<usize>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Node` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `nodes`, `head`, and `tail` are never read
[INFO] [stdout]   --> src/list.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct List<K, V> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 13 |     nodes: Vec<Node<K, V>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 14 |     head: Option<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 15 |     tail: Option<usize>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `List` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push_front`, `pop_back`, `remove`, and `move_to_front` are never used
[INFO] [stdout]   --> src/list.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<K,V> List<K, V> {
[INFO] [stdout]    | -------------------- associated items in this implementation
[INFO] [stdout] 19 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     fn push_front(&mut self, key: K, value: V) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn pop_back(&mut self) -> Option<(K, V)> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     fn remove(&mut self, idx:usize) -> Option<(K, V)> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     fn move_to_front(&mut self, idx: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `capacity`, `map`, and `list` are never read
[INFO] [stdout]  --> src/cache.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct LruCache<K,V> {
[INFO] [stdout]   |            -------- fields in this struct
[INFO] [stdout] 2 |     capacity: usize,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 3 |     map: std::collections::HashMap<K, usize>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     list: crate::list::List<K, V>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]   --> src/list.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<K,V> List<K, V> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 54 |     fn remove(&mut self, idx:usize) -> Option<(K, V)> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `capacity`, `map`, and `list` are never read
[INFO] [stdout]  --> src/cache.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct LruCache<K,V> {
[INFO] [stdout]   |            -------- fields in this struct
[INFO] [stdout] 2 |     capacity: usize,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 3 |     map: std::collections::HashMap<K, usize>,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     list: crate::list::List<K, V>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "1077866cb732ec949b9614485102ad57305007cf627d5b336892207c492762c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1077866cb732ec949b9614485102ad57305007cf627d5b336892207c492762c3", kill_on_drop: false }`
[INFO] [stdout] 1077866cb732ec949b9614485102ad57305007cf627d5b336892207c492762c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c79d80f986e33cc990ad257b6f73f2fc9e68af71afcf06038cc3ac75a4a7f573
[INFO] running `Command { std: "docker" "start" "-a" "c79d80f986e33cc990ad257b6f73f2fc9e68af71afcf06038cc3ac75a4a7f573", kill_on_drop: false }`
[INFO] [stderr] warning: fields `key`, `value`, `prev`, and `next` are never read
[INFO] [stderr]  --> src/list.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Node<K, V> {
[INFO] [stderr]   |            ---- fields in this struct
[INFO] [stderr] 5 |     key: K,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 6 |     value: V,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 7 |     prev: Option<usize>,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 8 |     next: Option<usize>,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Node` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `nodes`, `head`, and `tail` are never read
[INFO] [stderr]   --> src/list.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub struct List<K, V> {
[INFO] [stderr]    |            ---- fields in this struct
[INFO] [stderr] 13 |     nodes: Vec<Node<K, V>>,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 14 |     head: Option<usize>,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 15 |     tail: Option<usize>,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `List` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new`, `push_front`, `pop_back`, `remove`, and `move_to_front` are never used
[INFO] [stderr]   --> src/list.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | impl<K,V> List<K, V> {
[INFO] [stderr]    | -------------------- associated items in this implementation
[INFO] [stderr] 19 |     fn new() -> Self {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] ...
[INFO] [stderr] 27 |     fn push_front(&mut self, key: K, value: V) -> usize {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 45 |     fn pop_back(&mut self) -> Option<(K, V)> {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 54 |     fn remove(&mut self, idx:usize) -> Option<(K, V)> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 74 |     fn move_to_front(&mut self, idx: usize) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `capacity`, `map`, and `list` are never read
[INFO] [stderr]  --> src/cache.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub struct LruCache<K,V> {
[INFO] [stderr]   |            -------- fields in this struct
[INFO] [stderr] 2 |     capacity: usize,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 3 |     map: std::collections::HashMap<K, usize>,
[INFO] [stderr]   |     ^^^
[INFO] [stderr] 4 |     list: crate::list::List<K, V>,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `lru_cache` (lib) generated 4 warnings
[INFO] [stderr] warning: method `remove` is never used
[INFO] [stderr]   --> src/list.rs:54:8
[INFO] [stderr]    |
[INFO] [stderr] 18 | impl<K,V> List<K, V> {
[INFO] [stderr]    | -------------------- method in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 54 |     fn remove(&mut self, idx:usize) -> Option<(K, V)> {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `lru_cache` (lib test) generated 2 warnings (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lru_cache-c83aadcb9d77c6d0)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test list::tests::test_list ... ok
[INFO] [stdout] test list::tests::test_single ... ok
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test list::tests::test_move_to_front ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- list::tests::test_move_to_front stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'list::tests::test_move_to_front' (18) panicked at src/list.rs:126:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: 0
[INFO] [stdout]  right: 150
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x62e35782d642 - std::backtrace_rs::backtrace::libunwind::trace::h16affffe904e891e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x62e35782d642 - std::backtrace_rs::backtrace::trace_unsynchronized::h5c14b13373ed4150
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x62e35782d642 - std::sys::backtrace::_print_fmt::hcbb507f162c816cc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x62e35782d642 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8be9aa933f14675f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x62e35783d64f - core::fmt::rt::Argument::fmt::h30ed739d33467c3a
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x62e35783d64f - core::fmt::write::hfd0efbb002ac7eea
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x62e3577fb113 - std::io::default_write_fmt::hd6d24501f2d7f8d3
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x62e3577fb113 - std::io::Write::write_fmt::h79eca2f72fc24111
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x62e357806eb2 - std::sys::backtrace::BacktraceLock::print::hf2554f6030d393f7
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x62e35780b98f - std::panicking::default_hook::{{closure}}::h8873121c56335b01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x62e35780b821 - std::panicking::default_hook::hbafefc2d196267a2
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x62e3577ce9ee - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::ha834d5846f91b30b
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   12:     0x62e3577ce9ee - test::test_main_with_exit_callback::{{closure}}::h63c167737eecb025
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x62e35780bf9f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hbf9b0f7a281291fd
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stdout]   14:     0x62e35780bf9f - std::panicking::panic_with_hook::h9f5b09d5adc1a745
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x62e35780bdfa - std::panicking::panic_handler::{{closure}}::h08111e483bdf6a89
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x62e357806fe9 - std::sys::backtrace::__rust_end_short_backtrace::h1b86e3414ecbbe8d
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x62e3577ef8dd - __rustc[b292c645e8102103]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x62e357844e30 - core::panicking::panic_fmt::h31cc490ecc8cc1fa
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x62e357844cd3 - core::panicking::assert_failed_inner::h865658b89c1b891d
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:444:17
[INFO] [stdout]   20:     0x62e357844b17 - core::panicking::assert_failed::hda11ef7e070fa843
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:399:5
[INFO] [stdout]   21:     0x62e3577adb61 - lru_cache::list::tests::test_move_to_front::h01d73cae0ae66855
[INFO] [stdout]                                at /opt/rustwide/workdir/src/list.rs:126:9
[INFO] [stdout]   22:     0x62e3577adc27 - lru_cache::list::tests::test_move_to_front::{{closure}}::hd7ba19d7e8847335
[INFO] [stdout]                                at /opt/rustwide/workdir/src/list.rs:116:28
[INFO] [stdout]   23:     0x62e3577aae16 - core::ops::function::FnOnce::call_once::h1159bce6e309d068
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x62e3577ce7eb - core::ops::function::FnOnce::call_once::h2b2de5fdd23aab3e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x62e3577ce7eb - test::__rust_begin_short_backtrace::he551dd004770be01
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x62e3577e284d - test::run_test_in_process::{{closure}}::h5f0b44080a35ed87
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x62e3577e284d - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4dbf65d14893ecf5
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x62e3577e284d - std::panicking::catch_unwind::do_call::hc37c563b8a006285
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x62e3577e284d - std::panicking::catch_unwind::h616b6e2e7a27f612
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x62e3577e284d - std::panic::catch_unwind::h1e788dd57758e6d8
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x62e3577e284d - test::run_test_in_process::hf073c2764f29f8ad
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x62e3577e284d - test::run_test::{{closure}}::h3dc46b7a0c340fa6
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x62e3577bbd94 - test::run_test::{{closure}}::h6a4da3c57ef4505f
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x62e3577bbd94 - std::sys::backtrace::__rust_begin_short_backtrace::hfd8e44bc311a5d57
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x62e3577bf5ea - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h57c4ddec344fe24c
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x62e3577bf5ea - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd7cbe09591f06dfb
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x62e3577bf5ea - std::panicking::catch_unwind::do_call::hdcd076e8e993dfbc
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x62e3577bf5ea - std::panicking::catch_unwind::h8f9f675f3756eab1
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x62e3577bf5ea - std::panic::catch_unwind::he8f74a93abeceb9b
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x62e3577bf5ea - std::thread::Builder::spawn_unchecked_::{{closure}}::he43db13a2caa41d5
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x62e3577bf5ea - core::ops::function::FnOnce::call_once{{vtable.shim}}::h8f3531a7e0d83514
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x62e3578023ef - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ff05134d80ef20e
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2085:9
[INFO] [stdout]   43:     0x62e3578023ef - std::sys::thread::unix::Thread::new::thread_start::h9a4a41a076a486e0
[INFO] [stdout]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stdout]   44:     0x70bd64b8daa4 - <unknown>
[INFO] [stdout]   45:     0x70bd64c1aa64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     list::tests::test_move_to_front
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "c79d80f986e33cc990ad257b6f73f2fc9e68af71afcf06038cc3ac75a4a7f573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c79d80f986e33cc990ad257b6f73f2fc9e68af71afcf06038cc3ac75a4a7f573", kill_on_drop: false }`
[INFO] [stdout] c79d80f986e33cc990ad257b6f73f2fc9e68af71afcf06038cc3ac75a4a7f573
