[INFO] fetching crate sized-vec 0.3.0...
[INFO] testing sized-vec-0.3.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8
[INFO] extracting crate sized-vec 0.3.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate sized-vec 0.3.0
[INFO] finished tweaking crates.io crate sized-vec 0.3.0
[INFO] tweaked toml for crates.io crate sized-vec 0.3.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sized-vec 0.3.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 64 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.12.4 (available: v1.3.5)
[INFO] [stderr]       Adding pretty_assertions v0.6.1 (available: v1.4.1)
[INFO] [stderr]       Adding proptest v0.9.6 (available: v1.9.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64480d00cd8d4f1ff2d8b786cf3352276d1be4a3733182e9039ea7302b137e47
[INFO] running `Command { std: "docker" "start" "-a" "64480d00cd8d4f1ff2d8b786cf3352276d1be4a3733182e9039ea7302b137e47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64480d00cd8d4f1ff2d8b786cf3352276d1be4a3733182e9039ea7302b137e47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64480d00cd8d4f1ff2d8b786cf3352276d1be4a3733182e9039ea7302b137e47", kill_on_drop: false }`
[INFO] [stdout] 64480d00cd8d4f1ff2d8b786cf3352276d1be4a3733182e9039ea7302b137e47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4364829b698dbf6e2767b576ad20b6fe4af77be8f402de82ae6bfea91286c929
[INFO] running `Command { std: "docker" "start" "-a" "4364829b698dbf6e2767b576ad20b6fe4af77be8f402de82ae6bfea91286c929", kill_on_drop: false }`
[INFO] [stderr]    Compiling sized-vec v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/lib.rs:953:5
[INFO] [stdout]     |
[INFO] [stdout] 953 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[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]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/lib.rs:990:5
[INFO] [stdout]     |
[INFO] [stdout] 990 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[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]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1026:5
[INFO] [stdout]      |
[INFO] [stdout] 1026 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1046 | declare_from_array!(0, U0);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1047 | declare_from_array!(1, U1);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1048 | declare_from_array!(2, U2);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1049 | declare_from_array!(3, U3);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1050 | declare_from_array!(4, U4);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1051 | declare_from_array!(5, U5);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1052 | declare_from_array!(6, U6);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1053 | declare_from_array!(7, U7);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1054 | declare_from_array!(8, U8);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1055 | declare_from_array!(9, U9);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1056 | declare_from_array!(10, U10);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1057 | declare_from_array!(11, U11);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1058 | declare_from_array!(12, U12);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1059 | declare_from_array!(13, U13);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1060 | declare_from_array!(14, U14);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1061 | declare_from_array!(15, U15);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1062 | declare_from_array!(16, U16);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1063 | declare_from_array!(17, U17);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1064 | declare_from_array!(18, U18);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1065 | declare_from_array!(19, U19);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1066 | declare_from_array!(20, U20);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1067 | declare_from_array!(21, U21);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1068 | declare_from_array!(22, U22);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1069 | declare_from_array!(23, U23);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1070 | declare_from_array!(24, U24);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1071 | declare_from_array!(25, U25);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1072 | declare_from_array!(26, U26);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1073 | declare_from_array!(27, U27);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1074 | declare_from_array!(28, U28);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1075 | declare_from_array!(29, U29);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1076 | declare_from_array!(30, U30);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1077 | declare_from_array!(31, U31);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:462:17
[INFO] [stdout]     |
[INFO] [stdout] 462 |     pub fn iter(&self) -> Iter<A> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 462 |     pub fn iter(&self) -> Iter<'_, A> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:469:21
[INFO] [stdout]     |
[INFO] [stdout] 469 |     pub fn iter_mut(&mut self) -> IterMut<A> {
[INFO] [stdout]     |                     ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 469 |     pub fn iter_mut(&mut self) -> IterMut<'_, A> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "4364829b698dbf6e2767b576ad20b6fe4af77be8f402de82ae6bfea91286c929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4364829b698dbf6e2767b576ad20b6fe4af77be8f402de82ae6bfea91286c929", kill_on_drop: false }`
[INFO] [stdout] 4364829b698dbf6e2767b576ad20b6fe4af77be8f402de82ae6bfea91286c929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a19776f35b52bf86019ad3665f8ec167881979574a76b4d46a56ffe1fb55344
[INFO] running `Command { std: "docker" "start" "-a" "7a19776f35b52bf86019ad3665f8ec167881979574a76b4d46a56ffe1fb55344", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/lib.rs:953:5
[INFO] [stdout]     |
[INFO] [stdout] 953 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[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]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/lib.rs:990:5
[INFO] [stdout]     |
[INFO] [stdout] 990 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[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]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1026:5
[INFO] [stdout]      |
[INFO] [stdout] 1026 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1046 | declare_from_array!(0, U0);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1047 | declare_from_array!(1, U1);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1048 | declare_from_array!(2, U2);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1049 | declare_from_array!(3, U3);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1050 | declare_from_array!(4, U4);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1051 | declare_from_array!(5, U5);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1052 | declare_from_array!(6, U6);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1053 | declare_from_array!(7, U7);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1054 | declare_from_array!(8, U8);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1055 | declare_from_array!(9, U9);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1056 | declare_from_array!(10, U10);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1057 | declare_from_array!(11, U11);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1058 | declare_from_array!(12, U12);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1059 | declare_from_array!(13, U13);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1060 | declare_from_array!(14, U14);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1061 | declare_from_array!(15, U15);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1062 | declare_from_array!(16, U16);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1063 | declare_from_array!(17, U17);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1064 | declare_from_array!(18, U18);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1065 | declare_from_array!(19, U19);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1066 | declare_from_array!(20, U20);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1067 | declare_from_array!(21, U21);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1068 | declare_from_array!(22, U22);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1069 | declare_from_array!(23, U23);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1070 | declare_from_array!(24, U24);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1071 | declare_from_array!(25, U25);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1072 | declare_from_array!(26, U26);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1073 | declare_from_array!(27, U27);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1074 | declare_from_array!(28, U28);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1075 | declare_from_array!(29, U29);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1076 | declare_from_array!(30, U30);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1077 | declare_from_array!(31, U31);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:462:17
[INFO] [stdout]     |
[INFO] [stdout] 462 |     pub fn iter(&self) -> Iter<A> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 462 |     pub fn iter(&self) -> Iter<'_, A> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:469:21
[INFO] [stdout]     |
[INFO] [stdout] 469 |     pub fn iter_mut(&mut self) -> IterMut<A> {
[INFO] [stdout]     |                     ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 469 |     pub fn iter_mut(&mut self) -> IterMut<'_, A> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stderr]    Compiling proptest v0.9.6
[INFO] [stderr]    Compiling sized-vec v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/lib.rs:953:5
[INFO] [stdout]     |
[INFO] [stdout] 953 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[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]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/lib.rs:990:5
[INFO] [stdout]     |
[INFO] [stdout] 990 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[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]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1026:5
[INFO] [stdout]      |
[INFO] [stdout] 1026 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1046 | declare_from_array!(0, U0);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1047 | declare_from_array!(1, U1);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1048 | declare_from_array!(2, U2);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1049 | declare_from_array!(3, U3);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1050 | declare_from_array!(4, U4);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1051 | declare_from_array!(5, U5);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1052 | declare_from_array!(6, U6);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1053 | declare_from_array!(7, U7);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1054 | declare_from_array!(8, U8);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1055 | declare_from_array!(9, U9);
[INFO] [stdout]      | -------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1056 | declare_from_array!(10, U10);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1057 | declare_from_array!(11, U11);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1058 | declare_from_array!(12, U12);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1059 | declare_from_array!(13, U13);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1060 | declare_from_array!(14, U14);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1061 | declare_from_array!(15, U15);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1062 | declare_from_array!(16, U16);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1063 | declare_from_array!(17, U17);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1064 | declare_from_array!(18, U18);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1065 | declare_from_array!(19, U19);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1066 | declare_from_array!(20, U20);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1067 | declare_from_array!(21, U21);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1068 | declare_from_array!(22, U22);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1069 | declare_from_array!(23, U23);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1070 | declare_from_array!(24, U24);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1071 | declare_from_array!(25, U25);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1072 | declare_from_array!(26, U26);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1073 | declare_from_array!(27, U27);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1074 | declare_from_array!(28, U28);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1075 | declare_from_array!(29, U29);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1076 | declare_from_array!(30, U30);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1035:13
[INFO] [stdout]      |
[INFO] [stdout] 1035 |             #[must_use]
[INFO] [stdout]      |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 1077 | declare_from_array!(31, U31);
[INFO] [stdout]      | ---------------------------- in this macro invocation
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]     --> src/lib.rs:1111:5
[INFO] [stdout]      |
[INFO] [stdout] 1111 |     #[must_use]
[INFO] [stdout]      |     ^^^^^^^^^^^
[INFO] [stdout]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:462:17
[INFO] [stdout]     |
[INFO] [stdout] 462 |     pub fn iter(&self) -> Iter<A> {
[INFO] [stdout]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 462 |     pub fn iter(&self) -> Iter<'_, A> {
[INFO] [stdout]     |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:469:21
[INFO] [stdout]     |
[INFO] [stdout] 469 |     pub fn iter_mut(&mut self) -> IterMut<A> {
[INFO] [stdout]     |                     ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 469 |     pub fn iter_mut(&mut self) -> IterMut<'_, A> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 15.45s
[INFO] running `Command { std: "docker" "inspect" "7a19776f35b52bf86019ad3665f8ec167881979574a76b4d46a56ffe1fb55344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a19776f35b52bf86019ad3665f8ec167881979574a76b4d46a56ffe1fb55344", kill_on_drop: false }`
[INFO] [stdout] 7a19776f35b52bf86019ad3665f8ec167881979574a76b4d46a56ffe1fb55344
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f9f587115ade560cd2784606ab35970aa8a5d2bc5ba657fad3270afba6af6c50
[INFO] running `Command { std: "docker" "start" "-a" "f9f587115ade560cd2784606ab35970aa8a5d2bc5ba657fad3270afba6af6c50", kill_on_drop: false }`
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/lib.rs:953:5
[INFO] [stderr]     |
[INFO] [stderr] 953 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[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]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/lib.rs:990:5
[INFO] [stderr]     |
[INFO] [stderr] 990 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[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]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1026:5
[INFO] [stderr]      |
[INFO] [stderr] 1026 |     #[must_use]
[INFO] [stderr]      |     ^^^^^^^^^^^
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1046 | declare_from_array!(0, U0);
[INFO] [stderr]      | -------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1047 | declare_from_array!(1, U1);
[INFO] [stderr]      | -------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1048 | declare_from_array!(2, U2);
[INFO] [stderr]      | -------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1049 | declare_from_array!(3, U3);
[INFO] [stderr]      | -------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1050 | declare_from_array!(4, U4);
[INFO] [stderr]      | -------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1051 | declare_from_array!(5, U5);
[INFO] [stderr]      | -------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1052 | declare_from_array!(6, U6);
[INFO] [stderr]      | -------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1053 | declare_from_array!(7, U7);
[INFO] [stderr]      | -------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1054 | declare_from_array!(8, U8);
[INFO] [stderr]      | -------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1055 | declare_from_array!(9, U9);
[INFO] [stderr]      | -------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1056 | declare_from_array!(10, U10);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1057 | declare_from_array!(11, U11);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1058 | declare_from_array!(12, U12);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1059 | declare_from_array!(13, U13);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1060 | declare_from_array!(14, U14);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1061 | declare_from_array!(15, U15);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1062 | declare_from_array!(16, U16);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1063 | declare_from_array!(17, U17);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1064 | declare_from_array!(18, U18);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1065 | declare_from_array!(19, U19);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1066 | declare_from_array!(20, U20);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1067 | declare_from_array!(21, U21);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1068 | declare_from_array!(22, U22);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1069 | declare_from_array!(23, U23);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1070 | declare_from_array!(24, U24);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1071 | declare_from_array!(25, U25);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1072 | declare_from_array!(26, U26);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1073 | declare_from_array!(27, U27);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1074 | declare_from_array!(28, U28);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1075 | declare_from_array!(29, U29);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1076 | declare_from_array!(30, U30);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1035:13
[INFO] [stderr]      |
[INFO] [stderr] 1035 |             #[must_use]
[INFO] [stderr]      |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 1077 | declare_from_array!(31, U31);
[INFO] [stderr]      | ---------------------------- in this macro invocation
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]      = note: this warning originates in the macro `declare_from_array` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:462:17
[INFO] [stderr]     |
[INFO] [stderr] 462 |     pub fn iter(&self) -> Iter<A> {
[INFO] [stderr]     |                 ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 462 |     pub fn iter(&self) -> Iter<'_, A> {
[INFO] [stderr]     |                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:469:21
[INFO] [stderr]     |
[INFO] [stderr] 469 |     pub fn iter_mut(&mut self) -> IterMut<A> {
[INFO] [stderr]     |                     ^^^^^^^^^     ^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 469 |     pub fn iter_mut(&mut self) -> IterMut<'_, A> {
[INFO] [stderr]     |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: `sized-vec` (lib) generated 37 warnings (run `cargo fix --lib -p sized-vec` to apply 37 suggestions)
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]     --> src/lib.rs:1111:5
[INFO] [stderr]      |
[INFO] [stderr] 1111 |     #[must_use]
[INFO] [stderr]      |     ^^^^^^^^^^^
[INFO] [stderr]      |
[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]      = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr] 
[INFO] [stderr] warning: `sized-vec` (lib test) generated 38 warnings (37 duplicates) (run `cargo fix --lib -p sized-vec --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sized_vec-165c0dffc300ded6)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::basics ... ok
[INFO] [stdout] test tests::serialise ... ok
[INFO] [stdout] test tests::static_array_conversion ... ok
[INFO] [stdout] test tests::test_the_proptest ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests sized_vec
[INFO] [stdout] 
[INFO] [stdout] running 25 tests
[INFO] [stdout] test src/lib.rs - Vec<N,A>::from_default (line 254) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::get (line 399) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::fill (line 180) ... ok
[INFO] [stdout] test src/lib.rs - (line 49) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::pop (line 323) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::get (line 410) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::apply (line 666) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::drain (line 552) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::push (line 275) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::push (line 287) - compile fail ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::repeat (line 201) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::pop (line 311) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::map (line 643) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::slice (line 515) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::truncate (line 491) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::try_from_iter (line 224) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::try_from (line 939) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::split_off (line 592) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::resize (line 619) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::try_from (line 1012) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::unzip (line 720) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::try_from (line 974) ... ok
[INFO] [stdout] test src/lib.rs - Vec<N,A>::zip (line 692) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 25 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f9f587115ade560cd2784606ab35970aa8a5d2bc5ba657fad3270afba6af6c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9f587115ade560cd2784606ab35970aa8a5d2bc5ba657fad3270afba6af6c50", kill_on_drop: false }`
[INFO] [stdout] f9f587115ade560cd2784606ab35970aa8a5d2bc5ba657fad3270afba6af6c50