[INFO] cloning repository https://github.com/Janko-dev/matchbox [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Janko-dev/matchbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanko-dev%2Fmatchbox", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanko-dev%2Fmatchbox'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0af8060ef5cdc0f0aeeb98e3b34087f3a2cd686a [INFO] testing Janko-dev/matchbox against beta-2025-02-18 for beta-1.86-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanko-dev%2Fmatchbox" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Janko-dev/matchbox on toolchain beta-2025-02-18 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-02-18" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Janko-dev/matchbox [INFO] finished tweaking git repo https://github.com/Janko-dev/matchbox [INFO] tweaked toml for git repo https://github.com/Janko-dev/matchbox written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Janko-dev/matchbox already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-02-18" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-02-18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 64140a33483b7be9779a6f23fe3f66aa3d0cfd26fb1bdac7153defab046046eb [INFO] running `Command { std: "docker" "start" "-a" "64140a33483b7be9779a6f23fe3f66aa3d0cfd26fb1bdac7153defab046046eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "64140a33483b7be9779a6f23fe3f66aa3d0cfd26fb1bdac7153defab046046eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "64140a33483b7be9779a6f23fe3f66aa3d0cfd26fb1bdac7153defab046046eb", kill_on_drop: false }` [INFO] [stdout] 64140a33483b7be9779a6f23fe3f66aa3d0cfd26fb1bdac7153defab046046eb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-02-18" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 83b6b5c027da14e78d914412b7f740e93f2c548497886ffc74d6a310cc58b7f6 [INFO] running `Command { std: "docker" "start" "-a" "83b6b5c027da14e78d914412b7f740e93f2c548497886ffc74d6a310cc58b7f6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.154 [INFO] [stderr] Compiling proc-macro2 v1.0.81 [INFO] [stderr] Compiling libm v0.2.11 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling cc v1.0.96 [INFO] [stderr] Compiling gimli v0.28.1 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling unicode-xid v0.2.4 [INFO] [stderr] Compiling memchr v2.7.2 [INFO] [stderr] Compiling rawpointer v0.2.1 [INFO] [stderr] Compiling rustc-demangle v0.1.23 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling matrixmultiply v0.3.9 [INFO] [stderr] Compiling miniz_oxide v0.7.2 [INFO] [stderr] Compiling svg v0.7.2 [INFO] [stderr] Compiling object v0.32.2 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling getrandom v0.2.14 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling backtrace v0.3.71 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling num-integer v0.1.46 [INFO] [stderr] Compiling num-complex v0.4.6 [INFO] [stderr] Compiling ndarray v0.16.1 [INFO] [stderr] Compiling addr2line v0.21.0 [INFO] [stderr] Compiling rand_distr v0.4.3 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling plotlib v0.5.1 [INFO] [stderr] Compiling ndarray-rand v0.15.0 [INFO] [stderr] Compiling matchbox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `Add`, `Broadcast`, `Div`, `MatMul`, `Mean`, `Mul`, `Pow`, `ReLU`, `ScalarMul`, `Sigmoid`, `Sub`, `Sum`, and `Transpose` [INFO] [stdout] --> src/core/tensor.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | Add, [INFO] [stdout] | ^^^ [INFO] [stdout] 8 | Sub, [INFO] [stdout] | ^^^ [INFO] [stdout] 9 | Mul, [INFO] [stdout] | ^^^ [INFO] [stdout] 10 | Div, [INFO] [stdout] | ^^^ [INFO] [stdout] 11 | MatMul, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 12 | ScalarMul, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 13 | Pow, [INFO] [stdout] | ^^^ [INFO] [stdout] 14 | Sum, [INFO] [stdout] | ^^^ [INFO] [stdout] 15 | Mean, [INFO] [stdout] | ^^^^ [INFO] [stdout] 16 | Transpose, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 17 | Broadcast, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 18 | Sigmoid, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 19 | ReLU [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BroadCastError` [INFO] [stdout] --> src/core/tensor.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | BroadCastError, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `One` [INFO] [stdout] --> src/core/tensor.rs:31:38 [INFO] [stdout] | [INFO] [stdout] 31 | rand_distr::{num_traits::{Float, One, Zero}, Normal, StandardNormal, Uniform}, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Zero` [INFO] [stdout] --> src/core/tensor.rs:31:43 [INFO] [stdout] | [INFO] [stdout] 31 | rand_distr::{num_traits::{Float, One, Zero}, Normal, StandardNormal, Uniform}, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.04s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.7.2 [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" "83b6b5c027da14e78d914412b7f740e93f2c548497886ffc74d6a310cc58b7f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "83b6b5c027da14e78d914412b7f740e93f2c548497886ffc74d6a310cc58b7f6", kill_on_drop: false }` [INFO] [stdout] 83b6b5c027da14e78d914412b7f740e93f2c548497886ffc74d6a310cc58b7f6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-02-18" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 289eaa90d9525f457c50eb71eb2a29e005c7e5a6f52b2c4add01dc5a39cb47e3 [INFO] running `Command { std: "docker" "start" "-a" "289eaa90d9525f457c50eb71eb2a29e005c7e5a6f52b2c4add01dc5a39cb47e3", kill_on_drop: false }` [INFO] [stdout] warning: unused imports: `Add`, `Broadcast`, `Div`, `MatMul`, `Mean`, `Mul`, `Pow`, `ReLU`, `ScalarMul`, `Sigmoid`, `Sub`, `Sum`, and `Transpose` [INFO] [stdout] --> src/core/tensor.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | Add, [INFO] [stdout] | ^^^ [INFO] [stdout] 8 | Sub, [INFO] [stdout] | ^^^ [INFO] [stdout] 9 | Mul, [INFO] [stdout] | ^^^ [INFO] [stdout] 10 | Div, [INFO] [stdout] | ^^^ [INFO] [stdout] 11 | MatMul, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 12 | ScalarMul, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 13 | Pow, [INFO] [stdout] | ^^^ [INFO] [stdout] 14 | Sum, [INFO] [stdout] | ^^^ [INFO] [stdout] 15 | Mean, [INFO] [stdout] | ^^^^ [INFO] [stdout] 16 | Transpose, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 17 | Broadcast, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 18 | Sigmoid, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 19 | ReLU [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BroadCastError` [INFO] [stdout] --> src/core/tensor.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | BroadCastError, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `One` [INFO] [stdout] --> src/core/tensor.rs:31:38 [INFO] [stdout] | [INFO] [stdout] 31 | rand_distr::{num_traits::{Float, One, Zero}, Normal, StandardNormal, Uniform}, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Zero` [INFO] [stdout] --> src/core/tensor.rs:31:43 [INFO] [stdout] | [INFO] [stdout] 31 | rand_distr::{num_traits::{Float, One, Zero}, Normal, StandardNormal, Uniform}, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling matchbox v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `Add`, `Broadcast`, `Div`, `MatMul`, `Mean`, `Mul`, `Pow`, `ReLU`, `ScalarMul`, `Sigmoid`, `Sub`, `Sum`, and `Transpose` [INFO] [stdout] --> src/core/tensor.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | Add, [INFO] [stdout] | ^^^ [INFO] [stdout] 8 | Sub, [INFO] [stdout] | ^^^ [INFO] [stdout] 9 | Mul, [INFO] [stdout] | ^^^ [INFO] [stdout] 10 | Div, [INFO] [stdout] | ^^^ [INFO] [stdout] 11 | MatMul, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 12 | ScalarMul, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 13 | Pow, [INFO] [stdout] | ^^^ [INFO] [stdout] 14 | Sum, [INFO] [stdout] | ^^^ [INFO] [stdout] 15 | Mean, [INFO] [stdout] | ^^^^ [INFO] [stdout] 16 | Transpose, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 17 | Broadcast, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 18 | Sigmoid, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 19 | ReLU [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BroadCastError` [INFO] [stdout] --> src/core/tensor.rs:23:5 [INFO] [stdout] | [INFO] [stdout] 23 | BroadCastError, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `One` [INFO] [stdout] --> src/core/tensor.rs:31:38 [INFO] [stdout] | [INFO] [stdout] 31 | rand_distr::{num_traits::{Float, One, Zero}, Normal, StandardNormal, Uniform}, [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Zero` [INFO] [stdout] --> src/core/tensor.rs:31:43 [INFO] [stdout] | [INFO] [stdout] 31 | rand_distr::{num_traits::{Float, One, Zero}, Normal, StandardNormal, Uniform}, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.33s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.7.2 [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" "289eaa90d9525f457c50eb71eb2a29e005c7e5a6f52b2c4add01dc5a39cb47e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "289eaa90d9525f457c50eb71eb2a29e005c7e5a6f52b2c4add01dc5a39cb47e3", kill_on_drop: false }` [INFO] [stdout] 289eaa90d9525f457c50eb71eb2a29e005c7e5a6f52b2c4add01dc5a39cb47e3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-02-18" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 197ff5ed255cfaeded53828261db34fad8804ce585b620fb45b9a8d7f6e8076f [INFO] running `Command { std: "docker" "start" "-a" "197ff5ed255cfaeded53828261db34fad8804ce585b620fb45b9a8d7f6e8076f", kill_on_drop: false }` [INFO] [stderr] warning: unused imports: `Add`, `Broadcast`, `Div`, `MatMul`, `Mean`, `Mul`, `Pow`, `ReLU`, `ScalarMul`, `Sigmoid`, `Sub`, `Sum`, and `Transpose` [INFO] [stderr] --> src/core/tensor.rs:7:9 [INFO] [stderr] | [INFO] [stderr] 7 | Add, [INFO] [stderr] | ^^^ [INFO] [stderr] 8 | Sub, [INFO] [stderr] | ^^^ [INFO] [stderr] 9 | Mul, [INFO] [stderr] | ^^^ [INFO] [stderr] 10 | Div, [INFO] [stderr] | ^^^ [INFO] [stderr] 11 | MatMul, [INFO] [stderr] | ^^^^^^ [INFO] [stderr] 12 | ScalarMul, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] 13 | Pow, [INFO] [stderr] | ^^^ [INFO] [stderr] 14 | Sum, [INFO] [stderr] | ^^^ [INFO] [stderr] 15 | Mean, [INFO] [stderr] | ^^^^ [INFO] [stderr] 16 | Transpose, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] 17 | Broadcast, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] 18 | Sigmoid, [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] 19 | ReLU [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `BroadCastError` [INFO] [stderr] --> src/core/tensor.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 23 | BroadCastError, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `One` [INFO] [stderr] --> src/core/tensor.rs:31:38 [INFO] [stderr] | [INFO] [stderr] 31 | rand_distr::{num_traits::{Float, One, Zero}, Normal, StandardNormal, Uniform}, [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Zero` [INFO] [stderr] --> src/core/tensor.rs:31:43 [INFO] [stderr] | [INFO] [stderr] 31 | rand_distr::{num_traits::{Float, One, Zero}, Normal, StandardNormal, Uniform}, [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: `matchbox` (lib) generated 4 warnings (run `cargo fix --lib -p matchbox` to apply 2 suggestions) [INFO] [stderr] warning: `matchbox` (lib test) generated 4 warnings (4 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.7.2 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/matchbox-5360927e1050d2dd) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running tests/tensor_operations.rs (/opt/rustwide/target/debug/deps/tensor_operations-f5fdc197603f1e22) [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test tests::tensor_addition_test_shape_mismatch ... ok [INFO] [stdout] test tests::tensor_uniform_random ... ok [INFO] [stdout] test tests::tensor_normal_random ... ok [INFO] [stdout] test tests::tensor_element_wise_addition_2x2 ... ok [INFO] [stdout] test tests::tensor_element_wise_addition_4x3 ... ok [INFO] [stdout] test tests::tensor_info ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests matchbox [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "197ff5ed255cfaeded53828261db34fad8804ce585b620fb45b9a8d7f6e8076f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "197ff5ed255cfaeded53828261db34fad8804ce585b620fb45b9a8d7f6e8076f", kill_on_drop: false }` [INFO] [stdout] 197ff5ed255cfaeded53828261db34fad8804ce585b620fb45b9a8d7f6e8076f