[INFO] fetching crate parity-crypto 0.9.0...
[INFO] testing parity-crypto-0.9.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate parity-crypto 0.9.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate parity-crypto 0.9.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate parity-crypto 0.9.0
[INFO] finished tweaking crates.io crate parity-crypto 0.9.0
[INFO] tweaked toml for crates.io crate parity-crypto 0.9.0 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ethbloom v0.11.1
[INFO] [stderr]   Downloaded aes-ctr v0.6.0
[INFO] [stderr]   Downloaded pbkdf2 v0.7.5
[INFO] [stderr]   Downloaded ethereum-types v0.12.1
[INFO] [stderr]   Downloaded password-hash v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a59ae181fd2c3f27925db5478c93d78688545ac93df5f81d86b27832e45f5ba0
[INFO] running `Command { std: "docker" "start" "-a" "a59ae181fd2c3f27925db5478c93d78688545ac93df5f81d86b27832e45f5ba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a59ae181fd2c3f27925db5478c93d78688545ac93df5f81d86b27832e45f5ba0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a59ae181fd2c3f27925db5478c93d78688545ac93df5f81d86b27832e45f5ba0", kill_on_drop: false }`
[INFO] [stdout] a59ae181fd2c3f27925db5478c93d78688545ac93df5f81d86b27832e45f5ba0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d26859f1f0eec3e506ac9ba4da5f305dcbf1f795e9fa81df382e4ca4e029003
[INFO] running `Command { std: "docker" "start" "-a" "0d26859f1f0eec3e506ac9ba4da5f305dcbf1f795e9fa81df382e4ca4e029003", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling base64ct v1.5.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling block-padding v0.2.1
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling zeroize v1.5.4
[INFO] [stderr]    Compiling cipher v0.2.5
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling ripemd160 v0.9.1
[INFO] [stderr]    Compiling crypto-mac v0.10.1
[INFO] [stderr]    Compiling aes-soft v0.6.4
[INFO] [stderr]    Compiling salsa20 v0.7.2
[INFO] [stderr]    Compiling ctr v0.6.0
[INFO] [stderr]    Compiling block-modes v0.7.0
[INFO] [stderr]    Compiling password-hash v0.1.4
[INFO] [stderr]    Compiling hmac v0.10.1
[INFO] [stderr]    Compiling pbkdf2 v0.6.0
[INFO] [stderr]    Compiling aes-ctr v0.6.0
[INFO] [stderr]    Compiling aes v0.6.0
[INFO] [stderr]    Compiling pbkdf2 v0.7.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling scrypt v0.5.0
[INFO] [stderr]    Compiling parity-crypto v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/aes.rs:75:2
[INFO] [stdout]    |
[INFO] [stdout] 75 |     &mut dest[..plain.len()].copy_from_slice(plain);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let _ = &mut dest[..plain.len()].copy_from_slice(plain);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/aes.rs:98:2
[INFO] [stdout]    |
[INFO] [stdout] 98 |     &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let _ = &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/aes.rs:120:2
[INFO] [stdout]     |
[INFO] [stdout] 120 |     &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let _ = &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.39s
[INFO] running `Command { std: "docker" "inspect" "0d26859f1f0eec3e506ac9ba4da5f305dcbf1f795e9fa81df382e4ca4e029003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d26859f1f0eec3e506ac9ba4da5f305dcbf1f795e9fa81df382e4ca4e029003", kill_on_drop: false }`
[INFO] [stdout] 0d26859f1f0eec3e506ac9ba4da5f305dcbf1f795e9fa81df382e4ca4e029003
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5e4bd323d4be8742591c0ba12fb39a98f8a3b0f580aca17b6129842a84db6c6
[INFO] running `Command { std: "docker" "start" "-a" "c5e4bd323d4be8742591c0ba12fb39a98f8a3b0f580aca17b6129842a84db6c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling scrypt v0.5.0
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling parity-crypto v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/aes.rs:75:2
[INFO] [stdout]    |
[INFO] [stdout] 75 |     &mut dest[..plain.len()].copy_from_slice(plain);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let _ = &mut dest[..plain.len()].copy_from_slice(plain);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/aes.rs:98:2
[INFO] [stdout]    |
[INFO] [stdout] 98 |     &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let _ = &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/aes.rs:120:2
[INFO] [stdout]     |
[INFO] [stdout] 120 |     &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let _ = &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/aes.rs:75:2
[INFO] [stdout]    |
[INFO] [stdout] 75 |     &mut dest[..plain.len()].copy_from_slice(plain);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let _ = &mut dest[..plain.len()].copy_from_slice(plain);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/aes.rs:98:2
[INFO] [stdout]    |
[INFO] [stdout] 98 |     &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 98 |     let _ = &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/aes.rs:120:2
[INFO] [stdout]     |
[INFO] [stdout] 120 |     &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 120 |     let _ = &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/aes.rs:133:3
[INFO] [stdout]     |
[INFO] [stdout] 133 |         &mut dest[..plain.len()].copy_from_slice(plain);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 133 |         let _ = &mut dest[..plain.len()].copy_from_slice(plain);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.95s
[INFO] running `Command { std: "docker" "inspect" "c5e4bd323d4be8742591c0ba12fb39a98f8a3b0f580aca17b6129842a84db6c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5e4bd323d4be8742591c0ba12fb39a98f8a3b0f580aca17b6129842a84db6c6", kill_on_drop: false }`
[INFO] [stdout] c5e4bd323d4be8742591c0ba12fb39a98f8a3b0f580aca17b6129842a84db6c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5bdf9e45443ca196acbd0acb58d44a3126b8b6692715ab147048511412bfc9e6
[INFO] running `Command { std: "docker" "start" "-a" "5bdf9e45443ca196acbd0acb58d44a3126b8b6692715ab147048511412bfc9e6", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/aes.rs:75:2
[INFO] [stderr]    |
[INFO] [stderr] 75 |     &mut dest[..plain.len()].copy_from_slice(plain);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 75 |     let _ = &mut dest[..plain.len()].copy_from_slice(plain);
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/aes.rs:98:2
[INFO] [stderr]    |
[INFO] [stderr] 98 |     &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 98 |     let _ = &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/aes.rs:120:2
[INFO] [stderr]     |
[INFO] [stderr] 120 |     &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 120 |     let _ = &mut dest[..encrypted.len()].copy_from_slice(encrypted);
[INFO] [stderr]     |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `parity-crypto` (lib) generated 3 warnings
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/aes.rs:133:3
[INFO] [stderr]     |
[INFO] [stderr] 133 |         &mut dest[..plain.len()].copy_from_slice(plain);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 133 |         let _ = &mut dest[..plain.len()].copy_from_slice(plain);
[INFO] [stderr]     |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `parity-crypto` (lib test) generated 4 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/parity_crypto-5a46ef4b72e523c9)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test pbkdf2::test::basic_test ... ok
[INFO] [stdout] test test::can_test_for_equality ... ok
[INFO] [stdout] test aes::tests::test_aes_short ... ok
[INFO] [stdout] test hmac::test::simple_mac_and_verify ... ok
[INFO] [stdout] test hmac::test::ietf_test_vectors ... ok
[INFO] [stdout] test scrypt::test_derive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests parity-crypto
[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" "5bdf9e45443ca196acbd0acb58d44a3126b8b6692715ab147048511412bfc9e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bdf9e45443ca196acbd0acb58d44a3126b8b6692715ab147048511412bfc9e6", kill_on_drop: false }`
[INFO] [stdout] 5bdf9e45443ca196acbd0acb58d44a3126b8b6692715ab147048511412bfc9e6