[INFO] cloning repository https://github.com/fzft/my-salsa
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fzft/my-salsa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzft%2Fmy-salsa", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzft%2Fmy-salsa'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce7db5b115a6a7456516faf8ac353a94cc789175
[INFO] checking fzft/my-salsa against master#b2728d5426bab1d8c39709768c7e22b7f66dde5d for pr-135852
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffzft%2Fmy-salsa" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fzft/my-salsa on toolchain b2728d5426bab1d8c39709768c7e22b7f66dde5d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fzft/my-salsa
[INFO] finished tweaking git repo https://github.com/fzft/my-salsa
[INFO] tweaked toml for git repo https://github.com/fzft/my-salsa written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fzft/my-salsa 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" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42bf12c67f5a5959f12964da8ddaf1e584ff8dd6645c9ca0c553fe9ca9dd001e
[INFO] running `Command { std: "docker" "start" "-a" "42bf12c67f5a5959f12964da8ddaf1e584ff8dd6645c9ca0c553fe9ca9dd001e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42bf12c67f5a5959f12964da8ddaf1e584ff8dd6645c9ca0c553fe9ca9dd001e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42bf12c67f5a5959f12964da8ddaf1e584ff8dd6645c9ca0c553fe9ca9dd001e", kill_on_drop: false }`
[INFO] [stdout] 42bf12c67f5a5959f12964da8ddaf1e584ff8dd6645c9ca0c553fe9ca9dd001e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+b2728d5426bab1d8c39709768c7e22b7f66dde5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efdea3df711807a7585bfa8dd7f257e1c1e47a79ff465396bd0985d519c47ad3
[INFO] running `Command { std: "docker" "start" "-a" "efdea3df711807a7585bfa8dd7f257e1c1e47a79ff465396bd0985d519c47ad3", kill_on_drop: false }`
[INFO] [stderr]     Checking my-salsa v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::net::IpAddr::V4`
[INFO] [stdout]  --> src/linklist.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::net::IpAddr::V4;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DeriveIndex` is never used
[INFO] [stdout]  --> src/main.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type DeriveIndex = u32;
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Storage` is never constructed
[INFO] [stdout]  --> src/main.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Storage {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LRU` is never constructed
[INFO] [stdout]   --> src/main.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct LRU {}
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SyncMap` is never constructed
[INFO] [stdout]   --> src/main.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct SyncMap {}
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KeyMap` is never constructed
[INFO] [stdout]   --> src/main.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct KeyMap {}
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MemMap` is never constructed
[INFO] [stdout]   --> src/main.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct MemMap {}
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DEFAULT_MAX_SIZE` is never used
[INFO] [stdout]  --> src/hashmap.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const DEFAULT_MAX_SIZE: u64 = 256;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `HashMap` is never constructed
[INFO] [stdout]  --> src/hashmap.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct HashMap<T: Eq + Hash, V: Clone> {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/hashmap.rs:16:11
[INFO] [stdout]     |
[INFO] [stdout] 14  | impl<T:  Hash + Eq + Clone, V: Clone> HashMap<T, V> {
[INFO] [stdout]     | --------------------------------------------------- associated items in this implementation
[INFO] [stdout] 15  |
[INFO] [stdout] 16  |     const INIT: Option<linklist::DoublyLinkedList<T, V>> = None;
[INFO] [stdout]     |           ^^^^
[INFO] [stdout] 17  |
[INFO] [stdout] 18  |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25  |     pub fn put(&mut self, key: T, val: V) -> Option<V> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 41  |     pub fn get(&mut self, key: T) -> Option<V> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 51  |     fn insert_new_value(&mut self, key: T, val: V, pos: usize) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58  |     fn update_or_link_new_val(key: T, val: V, list: &mut linklist::DoublyLinkedList<T, V>, cur_size: &mut usize) -> Option<V> where T: Eq {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78  |     fn check_list_for_key(key: T, list: &mut linklist::DoublyLinkedList<T, V>) -> Option<V>
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92  |     pub fn remove(&mut self, key: T) -> Option<V> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn check_item_in_list_and_remove(key: T, list: &mut linklist::DoublyLinkedList<T, V>, curr_size: &mut usize) -> Option<V> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_key` is never used
[INFO] [stdout]    --> src/hashmap.rs:123:4
[INFO] [stdout]     |
[INFO] [stdout] 123 | fn hash_key<T: Hash>(key: T) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_hash` is never used
[INFO] [stdout]    --> src/hashmap.rs:131:4
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn simple_hash(string: &str) -> u32 {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value`, `key`, and `prev` are never read
[INFO] [stdout]   --> src/linklist.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Node<K, T> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 11 |     pub(crate) value: T,
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 12 |     pub(crate) key: K,
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 13 |     pub(crate) prev: WeakLink<K, T>,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/linklist.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl<K, T> Node<K, T> {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 18 |     fn new(key: K, value: T) -> Rc<RefCell<Self>> {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tail` is never read
[INFO] [stdout]   --> src/linklist.rs:31:16
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct DoublyLinkedList<K: Eq, T> {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] 30 |     pub(crate) head: Link<K, T>,
[INFO] [stdout] 31 |     pub(crate) tail: WeakLink<K, T>,
[INFO] [stdout]    |                ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DoublyLinkedList` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `push_back`, `remove`, `find`, and `iter` are never used
[INFO] [stdout]   --> src/linklist.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | impl<K: Eq, T> DoublyLinkedList<K, T> {
[INFO] [stdout]    | ------------------------------------- associated items in this implementation
[INFO] [stdout] 35 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn push_back(&mut self, key: K, value: T) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 56 |     pub fn remove(&mut self, target: &Rc<RefCell<Node<K, T>>>) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn find(&self, key: K) -> Option<Rc<RefCell<Node<K, T>>>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     pub fn iter(&self) -> DoublyLinkedListRefIterator<K, T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net::IpAddr::V4`
[INFO] [stdout]  --> src/linklist.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::net::IpAddr::V4;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `DeriveIndex` is never used
[INFO] [stdout]  --> src/main.rs:7:6
[INFO] [stdout]   |
[INFO] [stdout] 7 | type DeriveIndex = u32;
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Storage` is never constructed
[INFO] [stdout]  --> src/main.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Storage {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LRU` is never constructed
[INFO] [stdout]   --> src/main.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | struct LRU {}
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SyncMap` is never constructed
[INFO] [stdout]   --> src/main.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | struct SyncMap {}
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `KeyMap` is never constructed
[INFO] [stdout]   --> src/main.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct KeyMap {}
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MemMap` is never constructed
[INFO] [stdout]   --> src/main.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct MemMap {}
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clear` is never used
[INFO] [stdout]    --> src/hashmap.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 14  | impl<T:  Hash + Eq + Clone, V: Clone> HashMap<T, V> {
[INFO] [stdout]     | --------------------------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 116 |     pub fn clear(&mut self) {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simple_hash` is never used
[INFO] [stdout]    --> src/hashmap.rs:131:4
[INFO] [stdout]     |
[INFO] [stdout] 131 | fn simple_hash(string: &str) -> u32 {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "efdea3df711807a7585bfa8dd7f257e1c1e47a79ff465396bd0985d519c47ad3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efdea3df711807a7585bfa8dd7f257e1c1e47a79ff465396bd0985d519c47ad3", kill_on_drop: false }`
[INFO] [stdout] efdea3df711807a7585bfa8dd7f257e1c1e47a79ff465396bd0985d519c47ad3