[INFO] fetching crate toolbelt 0.0.6...
[INFO] testing toolbelt-0.0.6 against 1.95.0 for beta-1.96-2
[INFO] extracting crate toolbelt 0.0.6 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate toolbelt 0.0.6
[INFO] finished tweaking crates.io crate toolbelt 0.0.6
[INFO] tweaked toml for crates.io crate toolbelt 0.0.6 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate toolbelt 0.0.6 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 59 packages to latest compatible versions
[INFO] [stderr]       Adding noise v0.7.0 (available: v0.9.0)
[INFO] [stderr]       Adding walkdir v2.3.3 (available: v2.5.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded png v0.16.8
[INFO] [stderr]   Downloaded miniz_oxide v0.3.7
[INFO] [stderr]   Downloaded adler32 v1.2.0
[INFO] [stderr]   Downloaded noise v0.7.0
[INFO] [stderr]   Downloaded cgmath v0.18.0
[INFO] [stderr]   Downloaded approx v0.4.0
[INFO] [stderr]   Downloaded num-rational v0.3.2
[INFO] [stderr]   Downloaded miniz_oxide v0.4.4
[INFO] [stderr]   Downloaded deflate v0.8.6
[INFO] [stderr]   Downloaded scoped_threadpool v0.1.9
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[INFO] [stderr]   Downloaded jpeg-decoder v0.1.22
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[INFO] [stderr]   Downloaded image v0.23.14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ef92ee48dfbfa5cf83065f73bfc999889d7176d326f1f050e03778b6acb51b2
[INFO] running `Command { std: "docker" "start" "-a" "1ef92ee48dfbfa5cf83065f73bfc999889d7176d326f1f050e03778b6acb51b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ef92ee48dfbfa5cf83065f73bfc999889d7176d326f1f050e03778b6acb51b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ef92ee48dfbfa5cf83065f73bfc999889d7176d326f1f050e03778b6acb51b2", kill_on_drop: false }`
[INFO] [stdout] 1ef92ee48dfbfa5cf83065f73bfc999889d7176d326f1f050e03778b6acb51b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcc40a14b5a5820bd0cfb2d7401f6fae2ab00d6ff096617498f047dbf39ef859
[INFO] running `Command { std: "docker" "start" "-a" "dcc40a14b5a5820bd0cfb2d7401f6fae2ab00d6ff096617498f047dbf39ef859", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling weezl v0.1.12
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling cgmath v0.18.0
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.6
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling approx v0.4.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling gif v0.11.4
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling num v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling noise v0.7.0
[INFO] [stderr]    Compiling toolbelt v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `Perlin` is ambiguous
[INFO] [stdout]  --> src/noise.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use noise::{Perlin, Seedable, NoiseFn};
[INFO] [stdout]   |             ^^^^^^ ambiguous name
[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]   = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]   = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Perlin` could refer to the struct defined here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::perlin::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   = help: consider updating this dependency to resolve this error
[INFO] [stdout]   = help: if updating the dependency does not resolve the problem report the problem to the author of the relevant crate
[INFO] [stdout] note: `Perlin` could also refer to the struct defined here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use self::perlin_surflet::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   = note: `#[warn(ambiguous_glob_imports)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `Perlin` is ambiguous
[INFO] [stdout]  --> src/noise.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub generator: Perlin,
[INFO] [stdout]   |                    ^^^^^^ ambiguous name
[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]   = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]   = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Perlin` could refer to the struct defined here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::perlin::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   = help: consider updating this dependency to resolve this error
[INFO] [stdout]   = help: if updating the dependency does not resolve the problem report the problem to the author of the relevant crate
[INFO] [stdout] note: `Perlin` could also refer to the struct defined here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use self::perlin_surflet::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `Perlin` is ambiguous
[INFO] [stdout]   --> src/noise.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 |             let p = Perlin::new();
[INFO] [stdout]    |                     ^^^^^^ ambiguous name
[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]    = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]    = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Perlin` could refer to the struct defined here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:6:9
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub use self::perlin::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    = help: consider updating this dependency to resolve this error
[INFO] [stdout]    = help: if updating the dependency does not resolve the problem report the problem to the author of the relevant crate
[INFO] [stdout] note: `Perlin` could also refer to the struct defined here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:7:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub use self::perlin_surflet::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn get(&self) -> Ref<T> {
[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] 32 |     pub fn get(&self) -> Ref<'_, T> {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:36:20
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn try_get(&self) -> Result<Ref<T>, std::cell::BorrowError> {
[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] 36 |     pub fn try_get(&self) -> Result<Ref<'_, T>, std::cell::BorrowError> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:40:20
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn get_mut(&self) -> RefMut<T> {
[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] 40 |     pub fn get_mut(&self) -> RefMut<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:44:24
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn try_get_mut(&self) -> Result<RefMut<T>, std::cell::BorrowMutError> {
[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] 44 |     pub fn try_get_mut(&self) -> Result<RefMut<'_, T>, std::cell::BorrowMutError> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.25s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: noise v0.7.0, toolbelt v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "dcc40a14b5a5820bd0cfb2d7401f6fae2ab00d6ff096617498f047dbf39ef859", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcc40a14b5a5820bd0cfb2d7401f6fae2ab00d6ff096617498f047dbf39ef859", kill_on_drop: false }`
[INFO] [stdout] dcc40a14b5a5820bd0cfb2d7401f6fae2ab00d6ff096617498f047dbf39ef859
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3592ad305778292c8c34af54823be5cd0cf9c0d0612cea1e741832471ab93e2
[INFO] running `Command { std: "docker" "start" "-a" "c3592ad305778292c8c34af54823be5cd0cf9c0d0612cea1e741832471ab93e2", kill_on_drop: false }`
[INFO] [stdout] warning: `Perlin` is ambiguous
[INFO] [stdout]  --> src/noise.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use noise::{Perlin, Seedable, NoiseFn};
[INFO] [stdout]   |             ^^^^^^ ambiguous name
[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]   = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]   = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Perlin` could refer to the struct defined here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::perlin::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   = help: consider updating this dependency to resolve this error
[INFO] [stdout]   = help: if updating the dependency does not resolve the problem report the problem to the author of the relevant crate
[INFO] [stdout] note: `Perlin` could also refer to the struct defined here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use self::perlin_surflet::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   = note: `#[warn(ambiguous_glob_imports)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `Perlin` is ambiguous
[INFO] [stdout]  --> src/noise.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub generator: Perlin,
[INFO] [stdout]   |                    ^^^^^^ ambiguous name
[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]   = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]   = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Perlin` could refer to the struct defined here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::perlin::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   = help: consider updating this dependency to resolve this error
[INFO] [stdout]   = help: if updating the dependency does not resolve the problem report the problem to the author of the relevant crate
[INFO] [stdout] note: `Perlin` could also refer to the struct defined here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use self::perlin_surflet::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `Perlin` is ambiguous
[INFO] [stdout]   --> src/noise.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 |             let p = Perlin::new();
[INFO] [stdout]    |                     ^^^^^^ ambiguous name
[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]    = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]    = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Perlin` could refer to the struct defined here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:6:9
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub use self::perlin::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    = help: consider updating this dependency to resolve this error
[INFO] [stdout]    = help: if updating the dependency does not resolve the problem report the problem to the author of the relevant crate
[INFO] [stdout] note: `Perlin` could also refer to the struct defined here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:7:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub use self::perlin_surflet::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn get(&self) -> Ref<T> {
[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] 32 |     pub fn get(&self) -> Ref<'_, T> {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:36:20
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn try_get(&self) -> Result<Ref<T>, std::cell::BorrowError> {
[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] 36 |     pub fn try_get(&self) -> Result<Ref<'_, T>, std::cell::BorrowError> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:40:20
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn get_mut(&self) -> RefMut<T> {
[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] 40 |     pub fn get_mut(&self) -> RefMut<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:44:24
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn try_get_mut(&self) -> Result<RefMut<T>, std::cell::BorrowMutError> {
[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] 44 |     pub fn try_get_mut(&self) -> Result<RefMut<'_, T>, std::cell::BorrowMutError> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling toolbelt v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `Perlin` is ambiguous
[INFO] [stdout]  --> src/noise.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use noise::{Perlin, Seedable, NoiseFn};
[INFO] [stdout]   |             ^^^^^^ ambiguous name
[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]   = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]   = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Perlin` could refer to the struct defined here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::perlin::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   = help: consider updating this dependency to resolve this error
[INFO] [stdout]   = help: if updating the dependency does not resolve the problem report the problem to the author of the relevant crate
[INFO] [stdout] note: `Perlin` could also refer to the struct defined here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use self::perlin_surflet::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   = note: `#[warn(ambiguous_glob_imports)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `Perlin` is ambiguous
[INFO] [stdout]  --> src/noise.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub generator: Perlin,
[INFO] [stdout]   |                    ^^^^^^ ambiguous name
[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]   = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]   = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Perlin` could refer to the struct defined here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use self::perlin::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^
[INFO] [stdout]   = help: consider updating this dependency to resolve this error
[INFO] [stdout]   = help: if updating the dependency does not resolve the problem report the problem to the author of the relevant crate
[INFO] [stdout] note: `Perlin` could also refer to the struct defined here
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use self::perlin_surflet::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `Perlin` is ambiguous
[INFO] [stdout]   --> src/noise.rs:18:21
[INFO] [stdout]    |
[INFO] [stdout] 18 |             let p = Perlin::new();
[INFO] [stdout]    |                     ^^^^^^ ambiguous name
[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]    = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stdout]    = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stdout] note: `Perlin` could refer to the struct defined here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:6:9
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub use self::perlin::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    = help: consider updating this dependency to resolve this error
[INFO] [stdout]    = help: if updating the dependency does not resolve the problem report the problem to the author of the relevant crate
[INFO] [stdout] note: `Perlin` could also refer to the struct defined here
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:7:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub use self::perlin_surflet::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:32:16
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn get(&self) -> Ref<T> {
[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] 32 |     pub fn get(&self) -> Ref<'_, T> {
[INFO] [stdout]    |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:36:20
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn try_get(&self) -> Result<Ref<T>, std::cell::BorrowError> {
[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] 36 |     pub fn try_get(&self) -> Result<Ref<'_, T>, std::cell::BorrowError> {
[INFO] [stdout]    |                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:40:20
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn get_mut(&self) -> RefMut<T> {
[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] 40 |     pub fn get_mut(&self) -> RefMut<'_, T> {
[INFO] [stdout]    |                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/cell.rs:44:24
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn try_get_mut(&self) -> Result<RefMut<T>, std::cell::BorrowMutError> {
[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] 44 |     pub fn try_get_mut(&self) -> Result<RefMut<'_, T>, std::cell::BorrowMutError> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: noise v0.7.0, toolbelt v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "c3592ad305778292c8c34af54823be5cd0cf9c0d0612cea1e741832471ab93e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3592ad305778292c8c34af54823be5cd0cf9c0d0612cea1e741832471ab93e2", kill_on_drop: false }`
[INFO] [stdout] c3592ad305778292c8c34af54823be5cd0cf9c0d0612cea1e741832471ab93e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 21d2c94213a6dcc2048e49e728da5fa9e886f71a3e489f16bab79b2d90fcbf69
[INFO] running `Command { std: "docker" "start" "-a" "21d2c94213a6dcc2048e49e728da5fa9e886f71a3e489f16bab79b2d90fcbf69", kill_on_drop: false }`
[INFO] [stderr] warning: `Perlin` is ambiguous
[INFO] [stderr]  --> src/noise.rs:1:13
[INFO] [stderr]   |
[INFO] [stderr] 1 | use noise::{Perlin, Seedable, NoiseFn};
[INFO] [stderr]   |             ^^^^^^ ambiguous name
[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]   = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stderr]   = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stderr] note: `Perlin` could refer to the struct defined here
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub use self::perlin::*;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   = help: consider updating this dependency to resolve this error
[INFO] [stderr]   = help: if updating the dependency does not resolve the problem report the problem to the author of the relevant crate
[INFO] [stderr] note: `Perlin` could also refer to the struct defined here
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub use self::perlin_surflet::*;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   = note: `#[warn(ambiguous_glob_imports)]` (part of `#[warn(future_incompatible)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `Perlin` is ambiguous
[INFO] [stderr]  --> src/noise.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub generator: Perlin,
[INFO] [stderr]   |                    ^^^^^^ ambiguous name
[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]   = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stderr]   = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stderr] note: `Perlin` could refer to the struct defined here
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub use self::perlin::*;
[INFO] [stderr]   |         ^^^^^^^^^^^^
[INFO] [stderr]   = help: consider updating this dependency to resolve this error
[INFO] [stderr]   = help: if updating the dependency does not resolve the problem report the problem to the author of the relevant crate
[INFO] [stderr] note: `Perlin` could also refer to the struct defined here
[INFO] [stderr]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub use self::perlin_surflet::*;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `Perlin` is ambiguous
[INFO] [stderr]   --> src/noise.rs:18:21
[INFO] [stderr]    |
[INFO] [stderr] 18 |             let p = Perlin::new();
[INFO] [stderr]    |                     ^^^^^^ ambiguous name
[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]    = note: for more information, see issue #114095 <https://github.com/rust-lang/rust/issues/114095>
[INFO] [stderr]    = note: ambiguous because of multiple glob imports of a name in the same module
[INFO] [stderr] note: `Perlin` could refer to the struct defined here
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:6:9
[INFO] [stderr]    |
[INFO] [stderr]  6 | pub use self::perlin::*;
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr]    = help: consider updating this dependency to resolve this error
[INFO] [stderr]    = help: if updating the dependency does not resolve the problem report the problem to the author of the relevant crate
[INFO] [stderr] note: `Perlin` could also refer to the struct defined here
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/noise-0.7.0/src/noise_fns/generators.rs:7:9
[INFO] [stderr]    |
[INFO] [stderr]  7 | pub use self::perlin_surflet::*;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/cell.rs:32:16
[INFO] [stderr]    |
[INFO] [stderr] 32 |     pub fn get(&self) -> Ref<T> {
[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] 32 |     pub fn get(&self) -> Ref<'_, T> {
[INFO] [stderr]    |                              +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/cell.rs:36:20
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn try_get(&self) -> Result<Ref<T>, std::cell::BorrowError> {
[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] 36 |     pub fn try_get(&self) -> Result<Ref<'_, T>, std::cell::BorrowError> {
[INFO] [stderr]    |                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/cell.rs:40:20
[INFO] [stderr]    |
[INFO] [stderr] 40 |     pub fn get_mut(&self) -> RefMut<T> {
[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] 40 |     pub fn get_mut(&self) -> RefMut<'_, T> {
[INFO] [stderr]    |                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/cell.rs:44:24
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn try_get_mut(&self) -> Result<RefMut<T>, std::cell::BorrowMutError> {
[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] 44 |     pub fn try_get_mut(&self) -> Result<RefMut<'_, T>, std::cell::BorrowMutError> {
[INFO] [stderr]    |                                                +++
[INFO] [stderr] 
[INFO] [stderr] warning: `toolbelt` (lib) generated 7 warnings (run `cargo fix --lib -p toolbelt` to apply 4 suggestions)
[INFO] [stderr] warning: `toolbelt` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: noise v0.7.0, toolbelt v0.0.6 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/toolbelt-08377248c3bbe443)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test aabb::tests::test_aabb_from ... ok
[INFO] [stdout] test once::tests::DoOnceSync_only_executes_once ... ok
[INFO] [stdout] test once::tests::DoOnce_done ... ok
[INFO] [stdout] test once::tests::InitOnce_initialize_then_get_and_try_get ... ok
[INFO] [stdout] test once::tests::InitOnce_uninitialized_try_get_returns_None ... ok
[INFO] [stdout] test once::tests::InitOnce_get_or_init_then_get_and_try_get ... ok
[INFO] [stdout] test once::tests::InitOnce_get_or_init_only_executes_once ... ok
[INFO] [stdout] test once::tests::DoOnce_only_executes_once ... ok
[INFO] [stdout] test once::tests::InitOnce_reentrant_init_should_panic - should panic ... ok
[INFO] [stdout] test once::tests::InitOnce_uninitialized_get_should_panic - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests toolbelt
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/once/mod.rs - once::DoOnce (line 15) ... ok
[INFO] [stdout] test src/once/mod.rs - once::DoOnceSync (line 47) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.57s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "21d2c94213a6dcc2048e49e728da5fa9e886f71a3e489f16bab79b2d90fcbf69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21d2c94213a6dcc2048e49e728da5fa9e886f71a3e489f16bab79b2d90fcbf69", kill_on_drop: false }`
[INFO] [stdout] 21d2c94213a6dcc2048e49e728da5fa9e886f71a3e489f16bab79b2d90fcbf69
