[INFO] fetching crate lfan 0.2.6...
[INFO] testing lfan-0.2.6 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate lfan 0.2.6 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate lfan 0.2.6
[INFO] finished tweaking crates.io crate lfan 0.2.6
[INFO] tweaked toml for crates.io crate lfan 0.2.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate lfan 0.2.6 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a395c52755780dff5f2f55f5e3d5f064cddcfd37f8670b3c8d40625938baba81
[INFO] running `Command { std: "docker" "start" "-a" "a395c52755780dff5f2f55f5e3d5f064cddcfd37f8670b3c8d40625938baba81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a395c52755780dff5f2f55f5e3d5f064cddcfd37f8670b3c8d40625938baba81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a395c52755780dff5f2f55f5e3d5f064cddcfd37f8670b3c8d40625938baba81", kill_on_drop: false }`
[INFO] [stdout] a395c52755780dff5f2f55f5e3d5f064cddcfd37f8670b3c8d40625938baba81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f984b4a92423c69029c3e8065f9f3a2d5ea1bcf7b8563fff9ed050a69850661a
[INFO] running `Command { std: "docker" "start" "-a" "f984b4a92423c69029c3e8065f9f3a2d5ea1bcf7b8563fff9ed050a69850661a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling linked-hash-map v0.5.6
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling lfan v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Cache` is never used
[INFO] [stdout]  --> src/cache/cache_trait.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Cache {
[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 `data`, `insertion_policy`, `eviction_policy`, and `maximum_size` are never read
[INFO] [stdout]   --> src/cache/modular_cache.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct ModularCache<K, V, IP, EP>
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     data: HashMap<K, V>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |
[INFO] [stdout] 19 |     insertion_policy: IP,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 20 |     eviction_policy: EP,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 21 |
[INFO] [stdout] 22 |     maximum_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `item` and `last_seen` are never read
[INFO] [stdout]   --> src/cache/ttl_cache.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct CacheItem<V> {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 11 |     item: V,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     last_seen: Instant,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_expired` is never used
[INFO] [stdout]   --> src/cache/ttl_cache.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<V> CacheItem<V> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 16 |     pub fn is_expired(&self, ttl: &Duration) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data`, `ttl`, `insertion_policy`, `eviction_policy`, and `maximum_size` are never read
[INFO] [stdout]   --> src/cache/ttl_cache.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct TtlCache<K, V, IP, EP>
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 38 |     data: HashMap<K, CacheItem<V>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 39 |
[INFO] [stdout] 40 |     ttl: Duration,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 41 |
[INFO] [stdout] 42 |     insertion_policy: IP,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 43 |     eviction_policy: EP,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 44 |
[INFO] [stdout] 45 |     maximum_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.16s
[INFO] running `Command { std: "docker" "inspect" "f984b4a92423c69029c3e8065f9f3a2d5ea1bcf7b8563fff9ed050a69850661a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f984b4a92423c69029c3e8065f9f3a2d5ea1bcf7b8563fff9ed050a69850661a", kill_on_drop: false }`
[INFO] [stdout] f984b4a92423c69029c3e8065f9f3a2d5ea1bcf7b8563fff9ed050a69850661a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e314c32aed12e38696934d7ddf6a5d97f922bb60e06d789e08e89e04a2cbe93
[INFO] running `Command { std: "docker" "start" "-a" "5e314c32aed12e38696934d7ddf6a5d97f922bb60e06d789e08e89e04a2cbe93", kill_on_drop: false }`
[INFO] [stderr]    Compiling lfan v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Cache` is never used
[INFO] [stdout]  --> src/cache/cache_trait.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Cache {
[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 `data`, `insertion_policy`, `eviction_policy`, and `maximum_size` are never read
[INFO] [stdout]   --> src/cache/modular_cache.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct ModularCache<K, V, IP, EP>
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     data: HashMap<K, V>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |
[INFO] [stdout] 19 |     insertion_policy: IP,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 20 |     eviction_policy: EP,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 21 |
[INFO] [stdout] 22 |     maximum_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `item` and `last_seen` are never read
[INFO] [stdout]   --> src/cache/ttl_cache.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct CacheItem<V> {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 11 |     item: V,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     last_seen: Instant,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_expired` is never used
[INFO] [stdout]   --> src/cache/ttl_cache.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<V> CacheItem<V> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 16 |     pub fn is_expired(&self, ttl: &Duration) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data`, `ttl`, `insertion_policy`, `eviction_policy`, and `maximum_size` are never read
[INFO] [stdout]   --> src/cache/ttl_cache.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct TtlCache<K, V, IP, EP>
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 38 |     data: HashMap<K, CacheItem<V>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 39 |
[INFO] [stdout] 40 |     ttl: Duration,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 41 |
[INFO] [stdout] 42 |     insertion_policy: IP,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 43 |     eviction_policy: EP,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 44 |
[INFO] [stdout] 45 |     maximum_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Cache` is never used
[INFO] [stdout]  --> src/cache/cache_trait.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Cache {
[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 `data`, `insertion_policy`, `eviction_policy`, and `maximum_size` are never read
[INFO] [stdout]   --> src/cache/modular_cache.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct ModularCache<K, V, IP, EP>
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     data: HashMap<K, V>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |
[INFO] [stdout] 19 |     insertion_policy: IP,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 20 |     eviction_policy: EP,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 21 |
[INFO] [stdout] 22 |     maximum_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `item` and `last_seen` are never read
[INFO] [stdout]   --> src/cache/ttl_cache.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct CacheItem<V> {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 11 |     item: V,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     last_seen: Instant,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_expired` is never used
[INFO] [stdout]   --> src/cache/ttl_cache.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<V> CacheItem<V> {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] 16 |     pub fn is_expired(&self, ttl: &Duration) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data`, `ttl`, `insertion_policy`, `eviction_policy`, and `maximum_size` are never read
[INFO] [stdout]   --> src/cache/ttl_cache.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub struct TtlCache<K, V, IP, EP>
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 38 |     data: HashMap<K, CacheItem<V>>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 39 |
[INFO] [stdout] 40 |     ttl: Duration,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 41 |
[INFO] [stdout] 42 |     insertion_policy: IP,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 43 |     eviction_policy: EP,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 44 |
[INFO] [stdout] 45 |     maximum_size: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "5e314c32aed12e38696934d7ddf6a5d97f922bb60e06d789e08e89e04a2cbe93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e314c32aed12e38696934d7ddf6a5d97f922bb60e06d789e08e89e04a2cbe93", kill_on_drop: false }`
[INFO] [stdout] 5e314c32aed12e38696934d7ddf6a5d97f922bb60e06d789e08e89e04a2cbe93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3f0bc5587f0b37b76b01dca1796af65b34029dacf95bb2c5ea8867e0225b067d
[INFO] running `Command { std: "docker" "start" "-a" "3f0bc5587f0b37b76b01dca1796af65b34029dacf95bb2c5ea8867e0225b067d", kill_on_drop: false }`
[INFO] [stderr] warning: trait `Cache` is never used
[INFO] [stderr]  --> src/cache/cache_trait.rs:4:11
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub trait Cache {
[INFO] [stderr]   |           ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `data`, `insertion_policy`, `eviction_policy`, and `maximum_size` are never read
[INFO] [stderr]   --> src/cache/modular_cache.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub struct ModularCache<K, V, IP, EP>
[INFO] [stderr]    |            ------------ fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 17 |     data: HashMap<K, V>,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 18 |
[INFO] [stderr] 19 |     insertion_policy: IP,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 20 |     eviction_policy: EP,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 21 |
[INFO] [stderr] 22 |     maximum_size: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `item` and `last_seen` are never read
[INFO] [stderr]   --> src/cache/ttl_cache.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct CacheItem<V> {
[INFO] [stderr]    |        --------- fields in this struct
[INFO] [stderr] 11 |     item: V,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 12 |     last_seen: Instant,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `is_expired` is never used
[INFO] [stderr]   --> src/cache/ttl_cache.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | impl<V> CacheItem<V> {
[INFO] [stderr]    | -------------------- method in this implementation
[INFO] [stderr] 16 |     pub fn is_expired(&self, ttl: &Duration) -> bool {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: fields `data`, `ttl`, `insertion_policy`, `eviction_policy`, and `maximum_size` are never read
[INFO] [stderr]   --> src/cache/ttl_cache.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub struct TtlCache<K, V, IP, EP>
[INFO] [stderr]    |            -------- fields in this struct
[INFO] [stderr] ...
[INFO] [stderr] 38 |     data: HashMap<K, CacheItem<V>>,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 39 |
[INFO] [stderr] 40 |     ttl: Duration,
[INFO] [stderr]    |     ^^^
[INFO] [stderr] 41 |
[INFO] [stderr] 42 |     insertion_policy: IP,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 43 |     eviction_policy: EP,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 44 |
[INFO] [stderr] 45 |     maximum_size: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `lfan` (lib) generated 5 warnings
[INFO] [stderr] warning: `lfan` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/lfan-a54567bd544af84e)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test policy::evict_lru::tests::no_op_reordering ... ok
[INFO] [stderr]    Doc-tests lfan
[INFO] [stdout] test policy::evict_lru::tests::eviction_reordering ... ok
[INFO] [stdout] test policy::insert_always::tests::always_returns_true ... ok
[INFO] [stdout] test policy::evict_lru::tests::insert_evict_doesnt_reorder_items ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3f0bc5587f0b37b76b01dca1796af65b34029dacf95bb2c5ea8867e0225b067d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f0bc5587f0b37b76b01dca1796af65b34029dacf95bb2c5ea8867e0225b067d", kill_on_drop: false }`
[INFO] [stdout] 3f0bc5587f0b37b76b01dca1796af65b34029dacf95bb2c5ea8867e0225b067d
