[INFO] fetching crate mouscache 0.5.6...
[INFO] testing mouscache-0.5.6 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate mouscache 0.5.6 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate mouscache 0.5.6
[INFO] finished tweaking crates.io crate mouscache 0.5.6
[INFO] tweaked toml for crates.io crate mouscache 0.5.6 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mouscache 0.5.6 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 83 packages to latest compatible versions
[INFO] [stderr]       Adding dns-lookup v0.9.1 (available: v3.0.1)
[INFO] [stderr]       Adding parking_lot v0.6.4 (available: v0.12.5)
[INFO] [stderr]       Adding redis v0.10.0 (available: v0.32.7)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 926c7c3345789de75065c8da14e5411164f1eee3bfb396e3a775853acd61b41e
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[INFO] running `Command { std: "docker" "inspect" "926c7c3345789de75065c8da14e5411164f1eee3bfb396e3a775853acd61b41e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "926c7c3345789de75065c8da14e5411164f1eee3bfb396e3a775853acd61b41e", kill_on_drop: false }`
[INFO] [stdout] 926c7c3345789de75065c8da14e5411164f1eee3bfb396e3a775853acd61b41e
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[INFO] [stdout] e79bac80e8d14b06901fb8691841433c8f28f9b498ba60b443d581f18577b0ac
[INFO] running `Command { std: "docker" "start" "-a" "e79bac80e8d14b06901fb8691841433c8f28f9b498ba60b443d581f18577b0ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling semver-parser v0.7.0
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[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling stable_deref_trait v1.2.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.18
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[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling tinyvec v1.10.0
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
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[INFO] [stderr]    Compiling memchr v2.7.6
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[INFO] [stderr]    Compiling semver v0.9.0
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[INFO] [stderr]    Compiling smallvec v0.6.14
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[INFO] [stderr]    Compiling num_cpus v1.17.0
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[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling dns-lookup v0.9.1
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.7
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling r2d2 v0.8.10
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling mouscache v0.5.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `contains_key` is never used
[INFO] [stdout]   --> src/lib.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | trait CacheAccess {
[INFO] [stdout]    |       ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn contains_key<K: ToString, O: Cacheable + Clone + 'static>(&self, key: K) -> Result<bool>;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `redis_key_exists` is never used
[INFO] [stdout]    --> src/redis_cache.rs:242:4
[INFO] [stdout]     |
[INFO] [stdout] 242 | fn redis_key_exists(con: &redis::Connection, key: String) -> Result<bool> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:223:38
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 vec.push(reader.get(f.clone()).map(|s| s.clone()));
[INFO] [stdout]     |                                      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:313:25
[INFO] [stdout]     |
[INFO] [stdout] 313 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:331:25
[INFO] [stdout]     |
[INFO] [stdout] 331 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:352:25
[INFO] [stdout]     |
[INFO] [stdout] 352 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:370:25
[INFO] [stdout]     |
[INFO] [stdout] 370 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:439:25
[INFO] [stdout]     |
[INFO] [stdout] 439 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:457:25
[INFO] [stdout]     |
[INFO] [stdout] 457 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.71s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: redis v0.10.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "e79bac80e8d14b06901fb8691841433c8f28f9b498ba60b443d581f18577b0ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e79bac80e8d14b06901fb8691841433c8f28f9b498ba60b443d581f18577b0ac", kill_on_drop: false }`
[INFO] [stdout] e79bac80e8d14b06901fb8691841433c8f28f9b498ba60b443d581f18577b0ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c035ed5607a726b5607d4909cd855bc16dee463000edd7b94087f7b8e36edba9
[INFO] running `Command { std: "docker" "start" "-a" "c035ed5607a726b5607d4909cd855bc16dee463000edd7b94087f7b8e36edba9", kill_on_drop: false }`
[INFO] [stdout] warning: method `contains_key` is never used
[INFO] [stdout]   --> src/lib.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | trait CacheAccess {
[INFO] [stdout]    |       ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn contains_key<K: ToString, O: Cacheable + Clone + 'static>(&self, key: K) -> Result<bool>;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `redis_key_exists` is never used
[INFO] [stdout]    --> src/redis_cache.rs:242:4
[INFO] [stdout]     |
[INFO] [stdout] 242 | fn redis_key_exists(con: &redis::Connection, key: String) -> Result<bool> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:223:38
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 vec.push(reader.get(f.clone()).map(|s| s.clone()));
[INFO] [stdout]     |                                      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:313:25
[INFO] [stdout]     |
[INFO] [stdout] 313 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:331:25
[INFO] [stdout]     |
[INFO] [stdout] 331 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mouscache v0.5.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:352:25
[INFO] [stdout]     |
[INFO] [stdout] 352 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:370:25
[INFO] [stdout]     |
[INFO] [stdout] 370 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:439:25
[INFO] [stdout]     |
[INFO] [stdout] 439 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:457:25
[INFO] [stdout]     |
[INFO] [stdout] 457 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `contains_key` is never used
[INFO] [stdout]   --> src/lib.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 62 | trait CacheAccess {
[INFO] [stdout]    |       ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 66 |     fn contains_key<K: ToString, O: Cacheable + Clone + 'static>(&self, key: K) -> Result<bool>;
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `redis_key_exists` is never used
[INFO] [stdout]    --> src/redis_cache.rs:242:4
[INFO] [stdout]     |
[INFO] [stdout] 242 | fn redis_key_exists(con: &redis::Connection, key: String) -> Result<bool> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:223:38
[INFO] [stdout]     |
[INFO] [stdout] 223 |                 vec.push(reader.get(f.clone()).map(|s| s.clone()));
[INFO] [stdout]     |                                      ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:313:25
[INFO] [stdout]     |
[INFO] [stdout] 313 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:331:25
[INFO] [stdout]     |
[INFO] [stdout] 331 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:352:25
[INFO] [stdout]     |
[INFO] [stdout] 352 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:370:25
[INFO] [stdout]     |
[INFO] [stdout] 370 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:439:25
[INFO] [stdout]     |
[INFO] [stdout] 439 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> src/memory_cache.rs:457:25
[INFO] [stdout]     |
[INFO] [stdout] 457 |             sets.get(key.clone())
[INFO] [stdout]     |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: redis v0.10.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "c035ed5607a726b5607d4909cd855bc16dee463000edd7b94087f7b8e36edba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c035ed5607a726b5607d4909cd855bc16dee463000edd7b94087f7b8e36edba9", kill_on_drop: false }`
[INFO] [stdout] c035ed5607a726b5607d4909cd855bc16dee463000edd7b94087f7b8e36edba9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0d12e8dc056489ef41db1689ed8ac2c1856fe2c42edff3c2330f29fa2d44a798
[INFO] running `Command { std: "docker" "start" "-a" "0d12e8dc056489ef41db1689ed8ac2c1856fe2c42edff3c2330f29fa2d44a798", kill_on_drop: false }`
[INFO] [stderr] warning: method `contains_key` is never used
[INFO] [stderr]   --> src/lib.rs:66:8
[INFO] [stderr]    |
[INFO] [stderr] 62 | trait CacheAccess {
[INFO] [stderr]    |       ----------- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 66 |     fn contains_key<K: ToString, O: Cacheable + Clone + 'static>(&self, key: K) -> Result<bool>;
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `redis_key_exists` is never used
[INFO] [stderr]    --> src/redis_cache.rs:242:4
[INFO] [stderr]     |
[INFO] [stderr] 242 | fn redis_key_exists(con: &redis::Connection, key: String) -> Result<bool> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stderr]    --> src/memory_cache.rs:223:38
[INFO] [stderr]     |
[INFO] [stderr] 223 |                 vec.push(reader.get(f.clone()).map(|s| s.clone()));
[INFO] [stderr]     |                                      ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stderr]    --> src/memory_cache.rs:313:25
[INFO] [stderr]     |
[INFO] [stderr] 313 |             sets.get(key.clone())
[INFO] [stderr]     |                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stderr]    --> src/memory_cache.rs:331:25
[INFO] [stderr]     |
[INFO] [stderr] 331 |             sets.get(key.clone())
[INFO] [stderr]     |                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stderr]    --> src/memory_cache.rs:352:25
[INFO] [stderr]     |
[INFO] [stderr] 352 |             sets.get(key.clone())
[INFO] [stderr]     |                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stderr]    --> src/memory_cache.rs:370:25
[INFO] [stderr]     |
[INFO] [stderr] 370 |             sets.get(key.clone())
[INFO] [stderr]     |                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stderr]    --> src/memory_cache.rs:439:25
[INFO] [stderr]     |
[INFO] [stderr] 439 |             sets.get(key.clone())
[INFO] [stderr]     |                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stderr]    --> src/memory_cache.rs:457:25
[INFO] [stderr]     |
[INFO] [stderr] 457 |             sets.get(key.clone())
[INFO] [stderr]     |                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `mouscache` (lib) generated 9 warnings
[INFO] [stderr] warning: `mouscache` (lib test) generated 9 warnings (9 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: redis v0.10.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mouscache-0ee7a312f052cdf6)
[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] [stderr]    Doc-tests mouscache
[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" "0d12e8dc056489ef41db1689ed8ac2c1856fe2c42edff3c2330f29fa2d44a798", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d12e8dc056489ef41db1689ed8ac2c1856fe2c42edff3c2330f29fa2d44a798", kill_on_drop: false }`
[INFO] [stdout] 0d12e8dc056489ef41db1689ed8ac2c1856fe2c42edff3c2330f29fa2d44a798
