[INFO] fetching crate nncombinator 0.7.0...
[INFO] checking nncombinator-0.7.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate nncombinator 0.7.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate nncombinator 0.7.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nncombinator 0.7.0
[INFO] finished tweaking crates.io crate nncombinator 0.7.0
[INFO] tweaked toml for crates.io crate nncombinator 0.7.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 88 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding image v0.24.9 (latest: v0.25.1)
[INFO] [stderr]       Adding nalgebra v0.27.1 (latest: v0.32.5)
[INFO] [stderr]       Adding nalgebra-macros v0.1.0 (latest: v0.2.1)
[INFO] [stderr]       Adding simba v0.5.1 (latest: v0.8.1)
[INFO] [stderr]       Adding statrs v0.15.0 (latest: v0.16.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cuda-config v0.1.0
[INFO] [stderr]   Downloaded cuda-runtime-sys v0.3.0-alpha.1
[INFO] [stderr]   Downloaded rcublas v0.6.0
[INFO] [stderr]   Downloaded statrs v0.15.0
[INFO] [stderr]   Downloaded rcublas-sys v0.5.0
[INFO] [stderr]   Downloaded nalgebra v0.27.1
[INFO] [stderr]   Downloaded rcudnn v1.8.0
[INFO] [stderr]   Downloaded rcudnn-sys v0.5.0
[INFO] [stderr]   Downloaded simba v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6e052026396d684f123b26201561af473dc19cd343b93ce0f0c72016e263145
[INFO] running `Command { std: "docker" "start" "-a" "d6e052026396d684f123b26201561af473dc19cd343b93ce0f0c72016e263145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6e052026396d684f123b26201561af473dc19cd343b93ce0f0c72016e263145", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e052026396d684f123b26201561af473dc19cd343b93ce0f0c72016e263145", kill_on_drop: false }`
[INFO] [stdout] d6e052026396d684f123b26201561af473dc19cd343b93ce0f0c72016e263145
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2f0e0ad3ad7ed1a607778724af667e3554a14cfc6f4ad9e6fd71249ede285e8
[INFO] running `Command { std: "docker" "start" "-a" "c2f0e0ad3ad7ed1a607778724af667e3554a14cfc6f4ad9e6fd71249ede285e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling rcudnn-sys v0.5.0
[INFO] [stderr]    Compiling rcublas-sys v0.5.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]    Compiling nncombinator v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling cuda-config v0.1.0
[INFO] [stderr]     Checking fdeflate v0.3.4
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]     Checking zune-inflate v0.2.54
[INFO] [stderr]     Checking lebe v0.5.2
[INFO] [stderr]    Compiling cuda-runtime-sys v0.3.0-alpha.1
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking gif v0.13.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking exr v1.72.0
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking png v0.17.13
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking simba v0.5.1
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking rcublas v0.6.0
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking rcudnn v1.8.0
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/arr.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/arr.rs:336:25
[INFO] [stdout]     |
[INFO] [stdout] 336 |             arr:self.arr.clone()
[INFO] [stdout]     |                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking nalgebra v0.27.1
[INFO] [stderr]     Checking statrs v0.15.0
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/arr.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/arr.rs:336:25
[INFO] [stdout]     |
[INFO] [stdout] 336 |             arr:self.arr.clone()
[INFO] [stdout]     |                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.51s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nalgebra v0.27.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "c2f0e0ad3ad7ed1a607778724af667e3554a14cfc6f4ad9e6fd71249ede285e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2f0e0ad3ad7ed1a607778724af667e3554a14cfc6f4ad9e6fd71249ede285e8", kill_on_drop: false }`
[INFO] [stdout] c2f0e0ad3ad7ed1a607778724af667e3554a14cfc6f4ad9e6fd71249ede285e8
[INFO] checking nncombinator-0.7.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate nncombinator 0.7.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate nncombinator 0.7.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nncombinator 0.7.0
[INFO] finished tweaking crates.io crate nncombinator 0.7.0
[INFO] tweaked toml for crates.io crate nncombinator 0.7.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 88 packages
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding image v0.24.9 (latest: v0.25.1)
[INFO] [stderr]       Adding nalgebra v0.27.1 (latest: v0.32.5)
[INFO] [stderr]       Adding nalgebra-macros v0.1.0 (latest: v0.2.1)
[INFO] [stderr]       Adding simba v0.5.1 (latest: v0.8.1)
[INFO] [stderr]       Adding statrs v0.15.0 (latest: v0.16.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5603ce468b59f3c4966ed640e2e1f4b62599e54ef0b06c6724c0a15bed4cc521
[INFO] running `Command { std: "docker" "start" "-a" "5603ce468b59f3c4966ed640e2e1f4b62599e54ef0b06c6724c0a15bed4cc521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5603ce468b59f3c4966ed640e2e1f4b62599e54ef0b06c6724c0a15bed4cc521", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5603ce468b59f3c4966ed640e2e1f4b62599e54ef0b06c6724c0a15bed4cc521", kill_on_drop: false }`
[INFO] [stdout] 5603ce468b59f3c4966ed640e2e1f4b62599e54ef0b06c6724c0a15bed4cc521
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f40857f04e5b69485cba0180834985e832ed373a816271c6cb6474b6ae7f6ce6
[INFO] running `Command { std: "docker" "start" "-a" "f40857f04e5b69485cba0180834985e832ed373a816271c6cb6474b6ae7f6ce6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling rcublas-sys v0.5.0
[INFO] [stderr]    Compiling rcudnn-sys v0.5.0
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling nncombinator v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]     Checking half v2.4.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling cuda-config v0.1.0
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking zune-inflate v0.2.54
[INFO] [stderr]     Checking fdeflate v0.3.4
[INFO] [stderr]     Checking lebe v0.5.2
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking gif v0.13.1
[INFO] [stderr]     Checking rand_xorshift v0.3.0
[INFO] [stderr]     Checking exr v1.72.0
[INFO] [stderr]    Compiling cuda-runtime-sys v0.3.0-alpha.1
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking png v0.17.13
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking simba v0.5.1
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking rcublas v0.6.0
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking rcudnn v1.8.0
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/arr.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/arr.rs:336:25
[INFO] [stdout]     |
[INFO] [stdout] 336 |             arr:self.arr.clone()
[INFO] [stdout]     |                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking nalgebra v0.27.1
[INFO] [stderr]     Checking statrs v0.15.0
[INFO] [stdout] warning: the item `std` is imported redundantly
[INFO] [stdout]  --> src/arr.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std;
[INFO] [stdout]   |     ^^^ the item `std` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/arr.rs:336:25
[INFO] [stdout]     |
[INFO] [stdout] 336 |             arr:self.arr.clone()
[INFO] [stdout]     |                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `[T]` does not implement `Clone`, so calling `clone` on `&[T]` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.28s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nalgebra v0.27.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "f40857f04e5b69485cba0180834985e832ed373a816271c6cb6474b6ae7f6ce6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f40857f04e5b69485cba0180834985e832ed373a816271c6cb6474b6ae7f6ce6", kill_on_drop: false }`
[INFO] [stdout] f40857f04e5b69485cba0180834985e832ed373a816271c6cb6474b6ae7f6ce6