[INFO] fetching crate mouscache 0.5.6...
[INFO] building mouscache-0.5.6 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate mouscache 0.5.6 into /workspace/builds/worker-2-tc1/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-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mouscache 0.5.6 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 91 packages to latest compatible versions
[INFO] [stderr]       Adding dns-lookup v0.9.1 (available: v3.0.0)
[INFO] [stderr]       Adding parking_lot v0.6.4 (available: v0.12.4)
[INFO] [stderr]       Adding redis v0.10.0 (available: v0.32.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parking_lot_core v0.3.1
[INFO] [stderr]   Downloaded ascii v0.9.3
[INFO] [stderr]   Downloaded unreachable v1.0.0
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[INFO] [stderr]   Downloaded rand v0.5.6
[INFO] [stderr]   Downloaded redis v0.10.0
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ce5d0a6845f1a45c859c220e18d2d46f4981a7ba8ad004d27b14aa47950fff2
[INFO] running `Command { std: "docker" "start" "-a" "6ce5d0a6845f1a45c859c220e18d2d46f4981a7ba8ad004d27b14aa47950fff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ce5d0a6845f1a45c859c220e18d2d46f4981a7ba8ad004d27b14aa47950fff2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ce5d0a6845f1a45c859c220e18d2d46f4981a7ba8ad004d27b14aa47950fff2", kill_on_drop: false }`
[INFO] [stdout] 6ce5d0a6845f1a45c859c220e18d2d46f4981a7ba8ad004d27b14aa47950fff2
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e854f8ae6a7035908009cae368335e0fff42089b9799f86cdb90d12bc429657b
[INFO] running `Command { std: "docker" "start" "-a" "e854f8ae6a7035908009cae368335e0fff42089b9799f86cdb90d12bc429657b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling sha1_smol v1.0.1
[INFO] [stderr]    Compiling ascii v0.9.3
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling redis v0.10.0
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling sha1 v0.6.1
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.39
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.7
[INFO] [stderr]    Compiling dns-lookup v0.9.1
[INFO] [stderr]    Compiling r2d2 v0.8.10
[INFO] [stderr]    Compiling tokio-io v0.1.13
[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 10.69s
[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 4`
[INFO] running `Command { std: "docker" "inspect" "e854f8ae6a7035908009cae368335e0fff42089b9799f86cdb90d12bc429657b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e854f8ae6a7035908009cae368335e0fff42089b9799f86cdb90d12bc429657b", kill_on_drop: false }`
[INFO] [stdout] e854f8ae6a7035908009cae368335e0fff42089b9799f86cdb90d12bc429657b
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57265a16b3730316112b1561cb06738e36f70bff3e1b1aa80caaf8d6460d8a92
[INFO] running `Command { std: "docker" "start" "-a" "57265a16b3730316112b1561cb06738e36f70bff3e1b1aa80caaf8d6460d8a92", 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] [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]    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 `test` profile [unoptimized + debuginfo] target(s) in 1.30s
[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 4`
[INFO] running `Command { std: "docker" "inspect" "57265a16b3730316112b1561cb06738e36f70bff3e1b1aa80caaf8d6460d8a92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57265a16b3730316112b1561cb06738e36f70bff3e1b1aa80caaf8d6460d8a92", kill_on_drop: false }`
[INFO] [stdout] 57265a16b3730316112b1561cb06738e36f70bff3e1b1aa80caaf8d6460d8a92
