[INFO] fetching crate treena 0.0.5...
[INFO] testing treena-0.0.5 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate treena 0.0.5 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate treena 0.0.5
[INFO] finished tweaking crates.io crate treena 0.0.5
[INFO] tweaked toml for crates.io crate treena 0.0.5 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate treena 0.0.5 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "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" "+33835004928d3bf65db4d4712e1330766263b0bd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81de2b8696210d9df1e4137025420f89fd762650ddf29a8b976fe289930a0756
[INFO] running `Command { std: "docker" "start" "-a" "81de2b8696210d9df1e4137025420f89fd762650ddf29a8b976fe289930a0756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81de2b8696210d9df1e4137025420f89fd762650ddf29a8b976fe289930a0756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81de2b8696210d9df1e4137025420f89fd762650ddf29a8b976fe289930a0756", kill_on_drop: false }`
[INFO] [stdout] 81de2b8696210d9df1e4137025420f89fd762650ddf29a8b976fe289930a0756
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6972587b1356d794b3b361c9735ea867d416a4563e4f80eb51a149c2ec12c1f6
[INFO] running `Command { std: "docker" "start" "-a" "6972587b1356d794b3b361c9735ea867d416a4563e4f80eb51a149c2ec12c1f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling treena v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 | define_internal_id_type!(NodeIdU8, crate::nonmax::NonMaxU8, "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, and traits
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 | define_internal_id_type!(NodeIdU8, crate::nonmax::NonMaxU8, "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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 | define_internal_id_type!(NodeIdU16, crate::nonmax::NonMaxU16, "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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 | define_internal_id_type!(NodeIdU16, crate::nonmax::NonMaxU16, "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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 | define_internal_id_type!(NodeIdU32, crate::nonmax::NonMaxU32, "u32");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 | define_internal_id_type!(NodeIdU32, crate::nonmax::NonMaxU32, "u32");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 | define_internal_id_type!(NodeIdU64, crate::nonmax::NonMaxU64, "u64");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 | define_internal_id_type!(NodeIdU64, crate::nonmax::NonMaxU64, "u64");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 | define_internal_id_type!(NodeIdUsize, crate::nonmax::NonMaxUsize, "usize");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 | define_internal_id_type!(NodeIdUsize, crate::nonmax::NonMaxUsize, "usize");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dynamic/hierarchy.rs:237:13
[INFO] [stdout]     |
[INFO] [stdout] 237 |         let mut nbs = self
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dynamic/hierarchy.rs:324:13
[INFO] [stdout]     |
[INFO] [stdout] 324 |         let mut nbs = self
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "6972587b1356d794b3b361c9735ea867d416a4563e4f80eb51a149c2ec12c1f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6972587b1356d794b3b361c9735ea867d416a4563e4f80eb51a149c2ec12c1f6", kill_on_drop: false }`
[INFO] [stdout] 6972587b1356d794b3b361c9735ea867d416a4563e4f80eb51a149c2ec12c1f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c45690ac17402830c95b39186aae4e373291486c1cb8871603ac0d2def65c67e
[INFO] running `Command { std: "docker" "start" "-a" "c45690ac17402830c95b39186aae4e373291486c1cb8871603ac0d2def65c67e", kill_on_drop: false }`
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 | define_internal_id_type!(NodeIdU8, crate::nonmax::NonMaxU8, "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, and traits
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 | define_internal_id_type!(NodeIdU8, crate::nonmax::NonMaxU8, "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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 | define_internal_id_type!(NodeIdU16, crate::nonmax::NonMaxU16, "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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 | define_internal_id_type!(NodeIdU16, crate::nonmax::NonMaxU16, "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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 | define_internal_id_type!(NodeIdU32, crate::nonmax::NonMaxU32, "u32");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 | define_internal_id_type!(NodeIdU32, crate::nonmax::NonMaxU32, "u32");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 | define_internal_id_type!(NodeIdU64, crate::nonmax::NonMaxU64, "u64");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 | define_internal_id_type!(NodeIdU64, crate::nonmax::NonMaxU64, "u64");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 | define_internal_id_type!(NodeIdUsize, crate::nonmax::NonMaxUsize, "usize");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 | define_internal_id_type!(NodeIdUsize, crate::nonmax::NonMaxUsize, "usize");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dynamic/hierarchy.rs:237:13
[INFO] [stdout]     |
[INFO] [stdout] 237 |         let mut nbs = self
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dynamic/hierarchy.rs:324:13
[INFO] [stdout]     |
[INFO] [stdout] 324 |         let mut nbs = self
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling treena v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> src/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 | define_internal_id_type!(NodeIdU8, crate::nonmax::NonMaxU8, "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, and traits
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 133 | define_internal_id_type!(NodeIdU8, crate::nonmax::NonMaxU8, "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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 | define_internal_id_type!(NodeIdU16, crate::nonmax::NonMaxU16, "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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 134 | define_internal_id_type!(NodeIdU16, crate::nonmax::NonMaxU16, "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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 | define_internal_id_type!(NodeIdU32, crate::nonmax::NonMaxU32, "u32");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 135 | define_internal_id_type!(NodeIdU32, crate::nonmax::NonMaxU32, "u32");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 | define_internal_id_type!(NodeIdU64, crate::nonmax::NonMaxU64, "u64");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 | define_internal_id_type!(NodeIdU64, crate::nonmax::NonMaxU64, "u64");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stdout]     |
[INFO] [stdout] 119 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 | define_internal_id_type!(NodeIdUsize, crate::nonmax::NonMaxUsize, "usize");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stdout]     |
[INFO] [stdout] 125 |             #[must_use]
[INFO] [stdout]     |             ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 137 | define_internal_id_type!(NodeIdUsize, crate::nonmax::NonMaxUsize, "usize");
[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, and traits
[INFO] [stdout]     = note: this warning originates in the macro `define_internal_id_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dynamic/hierarchy.rs:237:13
[INFO] [stdout]     |
[INFO] [stdout] 237 |         let mut nbs = self
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/dynamic/hierarchy.rs:324:13
[INFO] [stdout]     |
[INFO] [stdout] 324 |         let mut nbs = self
[INFO] [stdout]     |             ----^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stdout]     --> src/dynamic/forest.rs:2051:9
[INFO] [stdout]      |
[INFO] [stdout] 2051 | /         assert_eq!(
[INFO] [stdout] 2052 | |             container0.inner_fn_addr(),
[INFO] [stdout] 2053 | |             container1.inner_fn_addr(),
[INFO] [stdout] 2054 | |             "inner functions must have the same address \
[INFO] [stdout] 2055 | |              while the outer functions are different"
[INFO] [stdout] 2056 | |         );
[INFO] [stdout]      | |_________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: the address of the same function can vary between different codegen units
[INFO] [stdout]      = note: furthermore, different functions could have the same address after being merged together
[INFO] [stdout]      = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stdout]      = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.96s
[INFO] running `Command { std: "docker" "inspect" "c45690ac17402830c95b39186aae4e373291486c1cb8871603ac0d2def65c67e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c45690ac17402830c95b39186aae4e373291486c1cb8871603ac0d2def65c67e", kill_on_drop: false }`
[INFO] [stdout] c45690ac17402830c95b39186aae4e373291486c1cb8871603ac0d2def65c67e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7d7ff3551dc91e8bcd5f297f54c40917b280bcedcd02e4cf3de424355c115e8c
[INFO] running `Command { std: "docker" "start" "-a" "7d7ff3551dc91e8bcd5f297f54c40917b280bcedcd02e4cf3de424355c115e8c", kill_on_drop: false }`
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> src/dynamic/id.rs:119:13
[INFO] [stderr]     |
[INFO] [stderr] 119 |             #[must_use]
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 133 | define_internal_id_type!(NodeIdU8, crate::nonmax::NonMaxU8, "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, and traits
[INFO] [stderr]     = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |             #[must_use]
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 133 | define_internal_id_type!(NodeIdU8, crate::nonmax::NonMaxU8, "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, and traits
[INFO] [stderr]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stderr]     |
[INFO] [stderr] 119 |             #[must_use]
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 134 | define_internal_id_type!(NodeIdU16, crate::nonmax::NonMaxU16, "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, and traits
[INFO] [stderr]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |             #[must_use]
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 134 | define_internal_id_type!(NodeIdU16, crate::nonmax::NonMaxU16, "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, and traits
[INFO] [stderr]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stderr]     |
[INFO] [stderr] 119 |             #[must_use]
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 135 | define_internal_id_type!(NodeIdU32, crate::nonmax::NonMaxU32, "u32");
[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, and traits
[INFO] [stderr]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |             #[must_use]
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 135 | define_internal_id_type!(NodeIdU32, crate::nonmax::NonMaxU32, "u32");
[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, and traits
[INFO] [stderr]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stderr]     |
[INFO] [stderr] 119 |             #[must_use]
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 136 | define_internal_id_type!(NodeIdU64, crate::nonmax::NonMaxU64, "u64");
[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, and traits
[INFO] [stderr]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |             #[must_use]
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 136 | define_internal_id_type!(NodeIdU64, crate::nonmax::NonMaxU64, "u64");
[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, and traits
[INFO] [stderr]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:119:13
[INFO] [stderr]     |
[INFO] [stderr] 119 |             #[must_use]
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 137 | define_internal_id_type!(NodeIdUsize, crate::nonmax::NonMaxUsize, "usize");
[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, and traits
[INFO] [stderr]     = note: this warning originates in the macro `define_internal_id_type` (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/dynamic/id.rs:125:13
[INFO] [stderr]     |
[INFO] [stderr] 125 |             #[must_use]
[INFO] [stderr]     |             ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 137 | define_internal_id_type!(NodeIdUsize, crate::nonmax::NonMaxUsize, "usize");
[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, and traits
[INFO] [stderr]     = note: this warning originates in the macro `define_internal_id_type` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/dynamic/hierarchy.rs:237:13
[INFO] [stderr]     |
[INFO] [stderr] 237 |         let mut nbs = self
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/dynamic/hierarchy.rs:324:13
[INFO] [stderr]     |
[INFO] [stderr] 324 |         let mut nbs = self
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `treena` (lib) generated 12 warnings (run `cargo fix --lib -p treena` to apply 12 suggestions)
[INFO] [stderr] warning: function pointer comparisons do not produce meaningful results since their addresses are not guaranteed to be unique
[INFO] [stderr]     --> src/dynamic/forest.rs:2051:9
[INFO] [stderr]      |
[INFO] [stderr] 2051 | /         assert_eq!(
[INFO] [stderr] 2052 | |             container0.inner_fn_addr(),
[INFO] [stderr] 2053 | |             container1.inner_fn_addr(),
[INFO] [stderr] 2054 | |             "inner functions must have the same address \
[INFO] [stderr] 2055 | |              while the outer functions are different"
[INFO] [stderr] 2056 | |         );
[INFO] [stderr]      | |_________^
[INFO] [stderr]      |
[INFO] [stderr]      = note: the address of the same function can vary between different codegen units
[INFO] [stderr]      = note: furthermore, different functions could have the same address after being merged together
[INFO] [stderr]      = note: for more information visit <https://doc.rust-lang.org/nightly/core/ptr/fn.fn_addr_eq.html>
[INFO] [stderr]      = note: `#[warn(unpredictable_function_pointer_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `treena` (lib test) generated 13 warnings (12 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/treena-8749a624b35a5cb2)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running tests/cyclic.rs (/opt/rustwide/target/debug/deps/cyclic-9f89556e9fba5327)
[INFO] [stdout] test dynamic::forest::node::tests::adopt::unchanged_first_child_of_parent ... ok
[INFO] [stdout] test dynamic::forest::node::tests::insert::unchanged_first_child_of_parent ... ok
[INFO] [stdout] test dynamic::forest::tests::ensure_inner_function_is_monomorphized ... ok
[INFO] [stdout] test dynamic::hierarchy::traverse::tests::bft_queued_event_niche_optimized ... ok
[INFO] [stdout] test dynamic::id::tests::niche_optimized ... ok
[INFO] [stdout] test nonmax::tests::types_size ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test grandparent_as_child ... ok
[INFO] [stdout] test next_next_sibling_as_prev_sibling ... ok
[INFO] [stdout] test next_sibling_as_child ... ok
[INFO] [stdout] test next_sibling_as_prev_sibling ... ok
[INFO] [stdout] test parent_as_child ... ok
[INFO] [stdout] test prev_prev_sibling_as_next_sibling ... ok
[INFO] [stdout] test prev_sibling_as_child ... ok
[INFO] [stdout] test prev_sibling_as_next_sibling ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/forest-iterators.rs (/opt/rustwide/target/debug/deps/forest_iterators-4d54b8aedb8799d0)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test dft_backward ... ok
[INFO] [stdout] test dft_forward ... ok
[INFO] [stdout] test shallow_dft_backward_without_limit ... ok
[INFO] [stdout] test shallow_dft_forward_with_limit ... ok
[INFO] [stdout] test shallow_dft_backward_with_limit ... ok
[INFO] [stdout] test shallow_dft_forward_without_limit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests treena
[INFO] [stdout] 
[INFO] [stdout] running 60 tests
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::data_mut (line 247) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::create_root (line 302) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::clone_foreign_tree (line 1562) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::ancestors (line 1276) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::ancestors_or_self (line 1304) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::create_root (line 284) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest (line 36) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::breadth_first_traverse (line 1137) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::clone_local_tree (line 1511) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::depth_first_traverse (line 991) ... ok
[INFO] [stdout] test src/dynamic.rs - dynamic (line 50) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::data (line 227) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::insert (line 482) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::detach_single (line 651) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::allocating_breadth_first_traverse (line 1208) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::clone_local_tree_with_id_mapping (line 1616) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::insert (line 437) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::children (line 1332) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::node_mut (line 191) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::new (line 136) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::clone_foreign_tree_with_id_mapping (line 1750) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::detach (line 591) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::insert (line 392) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::following_siblings (line 1362) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::insert (line 527) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::node (line 165) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::remove (line 931) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::Node<'a,Id,T>::breadth_first_traverse (line 331) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::shallow_depth_first_traverse (line 1033) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::shallow_depth_first_traverse (line 1074) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::Node<'a,Id,T>::ancestors_or_self (line 481) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::remove_hooked_panic_safe (line 718) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::preceding_siblings_or_self (line 1465) ... ok
[INFO] [stdout] test src/dynamic/forest/nest_builder.rs - dynamic::forest::nest_builder::NestTreeBuilder (line 12) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::remove_hooked (line 833) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::Node<'a,Id,T>::ancestors (line 457) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::Node<'a,Id,T>::allocating_breadth_first_traverse (line 398) ... ok
[INFO] [stdout] test src/dynamic/forest/chain_builder.rs - dynamic::forest::chain_builder::ChainTreeBuilder (line 24) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::following_siblings_or_self (line 1391) ... ok
[INFO] [stdout] test src/dynamic/forest/chain_builder.rs - dynamic::forest::chain_builder::ChainTreeBuilder (line 92) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::Node<'a,Id,T>::shallow_depth_first_traverse (line 231) ... ok
[INFO] [stdout] test src/dynamic/forest.rs - dynamic::forest::Forest<Id,T>::preceding_siblings (line 1423) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::Node<'a,Id,T>::preceding_siblings_or_self (line 627) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::Node<'a,Id,T>::preceding_siblings (line 588) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::NodeMut<'a,Id,T>::adopt (line 992) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::Node<'a,Id,T>::following_siblings_or_self (line 558) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::Node<'a,Id,T>::depth_first_traverse (line 194) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::Node<'a,Id,T>::children (line 505) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::NodeMut<'a,Id,T>::create (line 827) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::NodeMut<'a,Id,T>::create (line 872) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::NodeMut<'a,Id,T>::remove_hooked (line 1290) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::NodeMut<'a,Id,T>::detach_single (line 1148) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::Node<'a,Id,T>::following_siblings (line 531) ... ok
[INFO] [stdout] test src/dynamic/id.rs - dynamic::id::impl_dynamic_node_id (line 42) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::Node<'a,Id,T>::shallow_depth_first_traverse (line 273) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::NodeMut<'a,Id,T>::remove (line 1358) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::NodeMut<'a,Id,T>::remove_hooked_panic_safe (line 1217) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::NodeMut<'a,Id,T>::create (line 782) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::NodeMut<'a,Id,T>::create (line 918) ... ok
[INFO] [stdout] test src/dynamic/forest/node.rs - dynamic::forest::node::NodeMut<'a,Id,T>::detach (line 1086) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 60 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.42s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7d7ff3551dc91e8bcd5f297f54c40917b280bcedcd02e4cf3de424355c115e8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d7ff3551dc91e8bcd5f297f54c40917b280bcedcd02e4cf3de424355c115e8c", kill_on_drop: false }`
[INFO] [stdout] 7d7ff3551dc91e8bcd5f297f54c40917b280bcedcd02e4cf3de424355c115e8c
