[INFO] fetching crate voladdress 1.4.0...
[INFO] testing voladdress-1.4.0 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate voladdress 1.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate voladdress 1.4.0
[INFO] finished tweaking crates.io crate voladdress 1.4.0
[INFO] tweaked toml for crates.io crate voladdress 1.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate voladdress 1.4.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "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" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 44e58f95f2c97feda4916e3d6b936e146f73dcacc77577b510f75c1baf34efcb
[INFO] running `Command { std: "docker" "start" "44e58f95f2c97feda4916e3d6b936e146f73dcacc77577b510f75c1baf34efcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44e58f95f2c97feda4916e3d6b936e146f73dcacc77577b510f75c1baf34efcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "44e58f95f2c97feda4916e3d6b936e146f73dcacc77577b510f75c1baf34efcb" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "44e58f95f2c97feda4916e3d6b936e146f73dcacc77577b510f75c1baf34efcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "44e58f95f2c97feda4916e3d6b936e146f73dcacc77577b510f75c1baf34efcb" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling voladdress v1.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/voladdress_.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volblock.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volblock.rs:239:5
[INFO] [stdout]     |
[INFO] [stdout] 239 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volblock.rs:267:5
[INFO] [stdout]     |
[INFO] [stdout] 267 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volblock.rs:277:5
[INFO] [stdout]     |
[INFO] [stdout] 277 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volblock.rs:283:5
[INFO] [stdout]     |
[INFO] [stdout] 283 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volseries.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volseries.rs:213:5
[INFO] [stdout]     |
[INFO] [stdout] 213 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volseries.rs:243:5
[INFO] [stdout]     |
[INFO] [stdout] 243 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volseries.rs:253:5
[INFO] [stdout]     |
[INFO] [stdout] 253 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volseries.rs:259:5
[INFO] [stdout]     |
[INFO] [stdout] 259 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volgrid2d.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volgrid2d_strided.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volregion.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volregion.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "44e58f95f2c97feda4916e3d6b936e146f73dcacc77577b510f75c1baf34efcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "44e58f95f2c97feda4916e3d6b936e146f73dcacc77577b510f75c1baf34efcb" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling voladdress v1.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/voladdress_.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volblock.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volblock.rs:239:5
[INFO] [stdout]     |
[INFO] [stdout] 239 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volblock.rs:267:5
[INFO] [stdout]     |
[INFO] [stdout] 267 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volblock.rs:277:5
[INFO] [stdout]     |
[INFO] [stdout] 277 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volblock.rs:283:5
[INFO] [stdout]     |
[INFO] [stdout] 283 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volseries.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volseries.rs:213:5
[INFO] [stdout]     |
[INFO] [stdout] 213 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volseries.rs:243:5
[INFO] [stdout]     |
[INFO] [stdout] 243 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volseries.rs:253:5
[INFO] [stdout]     |
[INFO] [stdout] 253 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volseries.rs:259:5
[INFO] [stdout]     |
[INFO] [stdout] 259 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volgrid2d.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volgrid2d_strided.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volregion.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volregion.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/voladdress_.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volblock.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volblock.rs:239:5
[INFO] [stdout]     |
[INFO] [stdout] 239 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volblock.rs:267:5
[INFO] [stdout]     |
[INFO] [stdout] 267 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volblock.rs:277:5
[INFO] [stdout]     |
[INFO] [stdout] 277 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volblock.rs:283:5
[INFO] [stdout]     |
[INFO] [stdout] 283 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volseries.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volseries.rs:213:5
[INFO] [stdout]     |
[INFO] [stdout] 213 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volseries.rs:243:5
[INFO] [stdout]     |
[INFO] [stdout] 243 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volseries.rs:253:5
[INFO] [stdout]     |
[INFO] [stdout] 253 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/volseries.rs:259:5
[INFO] [stdout]     |
[INFO] [stdout] 259 |   #[must_use]
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volgrid2d.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volgrid2d_strided.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volregion.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> src/volregion.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 58 |   #[must_use]
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "44e58f95f2c97feda4916e3d6b936e146f73dcacc77577b510f75c1baf34efcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "44e58f95f2c97feda4916e3d6b936e146f73dcacc77577b510f75c1baf34efcb" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]   --> src/voladdress_.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |   #[must_use]
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]   --> src/volblock.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |   #[must_use]
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/volblock.rs:239:5
[INFO] [stderr]     |
[INFO] [stderr] 239 |   #[must_use]
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/volblock.rs:267:5
[INFO] [stderr]     |
[INFO] [stderr] 267 |   #[must_use]
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/volblock.rs:277:5
[INFO] [stderr]     |
[INFO] [stderr] 277 |   #[must_use]
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/volblock.rs:283:5
[INFO] [stderr]     |
[INFO] [stderr] 283 |   #[must_use]
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]   --> src/volseries.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |   #[must_use]
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/volseries.rs:213:5
[INFO] [stderr]     |
[INFO] [stderr] 213 |   #[must_use]
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/volseries.rs:243:5
[INFO] [stderr]     |
[INFO] [stderr] 243 |   #[must_use]
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/volseries.rs:253:5
[INFO] [stderr]     |
[INFO] [stderr] 253 |   #[must_use]
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/volseries.rs:259:5
[INFO] [stderr]     |
[INFO] [stderr] 259 |   #[must_use]
[INFO] [stderr]     |     ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]   --> src/volgrid2d.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |   #[must_use]
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]   --> src/volgrid2d_strided.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |   #[must_use]
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]   --> src/volregion.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |   #[must_use]
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: the `must_use` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]   --> src/volregion.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 58 |   #[must_use]
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: the `must_use` attribute can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, and traits
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr] 
[INFO] [stderr] warning: `voladdress` (lib) generated 15 warnings (run `cargo fix --lib -p voladdress` to apply 15 suggestions)
[INFO] [stderr] warning: `voladdress` (lib test) generated 15 warnings (15 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/voladdress/695532c9aebbe29e/out/voladdress-695532c9aebbe29e)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test volregion::test_volregion_sub_slice ... ok
[INFO] [stdout] test volseries::test_impl_DoubleEndedIterator_for_VolSeriesIter ... ok
[INFO] [stdout] test volseries::test_volseries_iter_range ... ok
[INFO] [stdout] test volseries::test_impl_Iterator_for_VolSeriesIter ... ok
[INFO] [stdout] test volgrid2d_strided::test_vol_grid_2d_strided ... ok
[INFO] [stdout] test volblock::test_impl_DoubleEndedIterator_for_VolBlockIter ... ok
[INFO] [stdout] test volblock::test_impl_Iterator_for_VolBlockIter ... ok
[INFO] [stdout] test volblock::test_volblock_iter_range ... ok
[INFO] [stdout] test volblock::test_volblock_iter_range_low_bound_panic - should panic ... ok
[INFO] [stdout] test volseries::test_volseries_iter_range_high_bound_panic - should panic ... ok
[INFO] [stdout] test volseries::test_volseries_iter_range_low_bound_panic - should panic ... ok
[INFO] [stdout] test volblock::test_volblock_iter_range_high_bound_panic - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests voladdress
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 81) - compile ... ok
[INFO] [stdout] test src/lib.rs - (line 34) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "44e58f95f2c97feda4916e3d6b936e146f73dcacc77577b510f75c1baf34efcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44e58f95f2c97feda4916e3d6b936e146f73dcacc77577b510f75c1baf34efcb", kill_on_drop: false }`
[INFO] [stdout] 44e58f95f2c97feda4916e3d6b936e146f73dcacc77577b510f75c1baf34efcb
