[INFO] cloning repository https://github.com/an-Iceberg/rust_numerics
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/an-Iceberg/rust_numerics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fan-Iceberg%2Frust_numerics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fan-Iceberg%2Frust_numerics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 32a89ce022d892a48bfac7dd857b938da10dd3d7
[INFO] testing an-Iceberg/rust_numerics against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fan-Iceberg%2Frust_numerics" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/an-Iceberg/rust_numerics on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/an-Iceberg/rust_numerics
[INFO] finished tweaking git repo https://github.com/an-Iceberg/rust_numerics
[INFO] tweaked toml for git repo https://github.com/an-Iceberg/rust_numerics written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/an-Iceberg/rust_numerics 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8a79dabff3bb149cd4fd11f41eb8074480a1421ee844c1d0385bcd2115ab18fc
[INFO] running `Command { std: "docker" "start" "-a" "8a79dabff3bb149cd4fd11f41eb8074480a1421ee844c1d0385bcd2115ab18fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8a79dabff3bb149cd4fd11f41eb8074480a1421ee844c1d0385bcd2115ab18fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a79dabff3bb149cd4fd11f41eb8074480a1421ee844c1d0385bcd2115ab18fc", kill_on_drop: false }`
[INFO] [stdout] 8a79dabff3bb149cd4fd11f41eb8074480a1421ee844c1d0385bcd2115ab18fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b416c0daf452a6447c3cf1188c6c5064c550db6a4d676619320fcd208b9628fe
[INFO] running `Command { std: "docker" "start" "-a" "b416c0daf452a6447c3cf1188c6c5064c550db6a4d676619320fcd208b9628fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling numan v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `x1` is never read
[INFO] [stdout]   --> src/numan/zeros.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |   let mut x1 = x0;
[INFO] [stdout]    |           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x1`
[INFO] [stdout]   --> src/numan/zeros.rs:42:43
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn secant(f: fn(f64) -> f64, x0: f64, x1: f64, tolerance: f64) -> Option<f64>
[INFO] [stdout]    |                                           ^^ help: if this is intentional, prefix it with an underscore: `_x1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/numan/zeros.rs:75:32
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn newton_raphson_multidim(f: &Vec<fn(&Vector) -> f64>, x0: &Vector, ε: f64) -> Vector
[INFO] [stdout]    |                                ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x0`
[INFO] [stdout]   --> src/numan/zeros.rs:75:61
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn newton_raphson_multidim(f: &Vec<fn(&Vector) -> f64>, x0: &Vector, ε: f64) -> Vector
[INFO] [stdout]    |                                                             ^^ help: if this is intentional, prefix it with an underscore: `_x0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ε`
[INFO] [stdout]   --> src/numan/zeros.rs:75:74
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn newton_raphson_multidim(f: &Vec<fn(&Vector) -> f64>, x0: &Vector, ε: f64) -> Vector
[INFO] [stdout]    |                                                                          ^ help: if this is intentional, prefix it with an underscore: `_ε`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `A`
[INFO] [stdout]   --> src/numan/linalg.rs:44:15
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn matmul(A: &Matrix, B: &Matrix) -> Result<Matrix, String>
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_A`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `B`
[INFO] [stdout]   --> src/numan/linalg.rs:44:27
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn matmul(A: &Matrix, B: &Matrix) -> Result<Matrix, String>
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_B`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `M`
[INFO] [stdout]   --> src/numan/linalg.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn lr(M: &Matrix) -> Result<(Matrix, Matrix), String>
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_M`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/numan/linalg.rs:55:16
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn householder(v: Vector) -> Matrix
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `M`
[INFO] [stdout]   --> src/numan/linalg.rs:61:11
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn qr(M: &Matrix) -> Result<(Matrix, Matrix), String>
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_M`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `A`
[INFO] [stdout]   --> src/numan/linalg.rs:67:21
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn gauss_seidel(A: &Matrix, b: &Vector) -> Result<Vector, String>
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_A`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/numan/linalg.rs:67:33
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn gauss_seidel(A: &Matrix, b: &Vector) -> Result<Vector, String>
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/numan.rs:197:21
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub fn gauss_newton(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `λ0`
[INFO] [stdout]    --> src/numan.rs:197:50
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub fn gauss_newton(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |                                                  ^^ help: if this is intentional, prefix it with an underscore: `_λ0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ε`
[INFO] [stdout]    --> src/numan.rs:197:63
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub fn gauss_newton(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |                                                               ^ help: if this is intentional, prefix it with an underscore: `_ε`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/numan.rs:202:30
[INFO] [stdout]     |
[INFO] [stdout] 202 | pub fn gauss_newton_dampened(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `λ0`
[INFO] [stdout]    --> src/numan.rs:202:59
[INFO] [stdout]     |
[INFO] [stdout] 202 | pub fn gauss_newton_dampened(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |                                                           ^^ help: if this is intentional, prefix it with an underscore: `_λ0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ε`
[INFO] [stdout]    --> src/numan.rs:202:72
[INFO] [stdout]     |
[INFO] [stdout] 202 | pub fn gauss_newton_dampened(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |                                                                        ^ help: if this is intentional, prefix it with an underscore: `_ε`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `d_part` is never used
[INFO] [stdout]   --> src/numan.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn d_part(f: fn(&Vector) -> f64, x: &Vector, i: usize, h: f64, degree: u8) -> f64
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `partial` is never used
[INFO] [stdout]   --> src/numan.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn partial(f: fn(&Vector) -> f64, x: &Vector, i: usize, degree: u8) -> f64
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `jacobian` is never used
[INFO] [stdout]    --> src/numan.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn jacobian(f: Vec<fn(&Vector) -> f64>, x: &Vector, ε: f64) -> Matrix
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Df` is never used
[INFO] [stdout]    --> src/numan.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn Df(f: Vec<fn(&Vector) -> f64>, x: &Vector, ε: f64) -> Matrix
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rect` is never used
[INFO] [stdout]    --> src/numan.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub fn rect(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Rf` is never used
[INFO] [stdout]    --> src/numan.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 145 | pub fn Rf(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trapez` is never used
[INFO] [stdout]    --> src/numan.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub fn trapez(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Tf` is never used
[INFO] [stdout]    --> src/numan.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub fn Tf(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Sf` is never used
[INFO] [stdout]    --> src/numan.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 | pub fn Sf(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gauss_newton` is never used
[INFO] [stdout]    --> src/numan.rs:197:8
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub fn gauss_newton(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gauss_newton_dampened` is never used
[INFO] [stdout]    --> src/numan.rs:202:8
[INFO] [stdout]     |
[INFO] [stdout] 202 | pub fn gauss_newton_dampened(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `newton_raphson_multidim` is never used
[INFO] [stdout]   --> src/numan/zeros.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn newton_raphson_multidim(f: &Vec<fn(&Vector) -> f64>, x0: &Vector, ε: f64) -> Vector
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zero` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn zero(n: usize) -> Matrix
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `id` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn id(n: usize) -> Matrix
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matmul` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn matmul(A: &Matrix, B: &Matrix) -> Result<Matrix, String>
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lr` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn lr(M: &Matrix) -> Result<(Matrix, Matrix), String>
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `householder` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn householder(v: Vector) -> Matrix
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `qr` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn qr(M: &Matrix) -> Result<(Matrix, Matrix), String>
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gauss_seidel` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn gauss_seidel(A: &Matrix, b: &Vector) -> Result<Vector, String>
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `euler` is never used
[INFO] [stdout]  --> src/numan/ode.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn euler(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `midpoint` is never used
[INFO] [stdout]   --> src/numan/ode.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn midpoint(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mod_euler` is never used
[INFO] [stdout]   --> src/numan/ode.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn mod_euler(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `runge_kutta_4` is never used
[INFO] [stdout]   --> src/numan/ode.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn runge_kutta_4(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `RK4` is never used
[INFO] [stdout]   --> src/numan/ode.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn RK4(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "b416c0daf452a6447c3cf1188c6c5064c550db6a4d676619320fcd208b9628fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b416c0daf452a6447c3cf1188c6c5064c550db6a4d676619320fcd208b9628fe", kill_on_drop: false }`
[INFO] [stdout] b416c0daf452a6447c3cf1188c6c5064c550db6a4d676619320fcd208b9628fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78301a3eaa37c3e6ee7399eb11af79747eacb70c928f38a7ec8fc888263cf2a8
[INFO] running `Command { std: "docker" "start" "-a" "78301a3eaa37c3e6ee7399eb11af79747eacb70c928f38a7ec8fc888263cf2a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling numan v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `x1` is never read
[INFO] [stdout]   --> src/numan/zeros.rs:45:11
[INFO] [stdout]    |
[INFO] [stdout] 45 |   let mut x1 = x0;
[INFO] [stdout]    |           ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x1`
[INFO] [stdout]   --> src/numan/zeros.rs:42:43
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn secant(f: fn(f64) -> f64, x0: f64, x1: f64, tolerance: f64) -> Option<f64>
[INFO] [stdout]    |                                           ^^ help: if this is intentional, prefix it with an underscore: `_x1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/numan/zeros.rs:75:32
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn newton_raphson_multidim(f: &Vec<fn(&Vector) -> f64>, x0: &Vector, ε: f64) -> Vector
[INFO] [stdout]    |                                ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x0`
[INFO] [stdout]   --> src/numan/zeros.rs:75:61
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn newton_raphson_multidim(f: &Vec<fn(&Vector) -> f64>, x0: &Vector, ε: f64) -> Vector
[INFO] [stdout]    |                                                             ^^ help: if this is intentional, prefix it with an underscore: `_x0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ε`
[INFO] [stdout]   --> src/numan/zeros.rs:75:74
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn newton_raphson_multidim(f: &Vec<fn(&Vector) -> f64>, x0: &Vector, ε: f64) -> Vector
[INFO] [stdout]    |                                                                          ^ help: if this is intentional, prefix it with an underscore: `_ε`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `A`
[INFO] [stdout]   --> src/numan/linalg.rs:44:15
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn matmul(A: &Matrix, B: &Matrix) -> Result<Matrix, String>
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_A`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `B`
[INFO] [stdout]   --> src/numan/linalg.rs:44:27
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn matmul(A: &Matrix, B: &Matrix) -> Result<Matrix, String>
[INFO] [stdout]    |                           ^ help: if this is intentional, prefix it with an underscore: `_B`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `M`
[INFO] [stdout]   --> src/numan/linalg.rs:50:11
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn lr(M: &Matrix) -> Result<(Matrix, Matrix), String>
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_M`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]   --> src/numan/linalg.rs:55:16
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn householder(v: Vector) -> Matrix
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `M`
[INFO] [stdout]   --> src/numan/linalg.rs:61:11
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn qr(M: &Matrix) -> Result<(Matrix, Matrix), String>
[INFO] [stdout]    |           ^ help: if this is intentional, prefix it with an underscore: `_M`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `A`
[INFO] [stdout]   --> src/numan/linalg.rs:67:21
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn gauss_seidel(A: &Matrix, b: &Vector) -> Result<Vector, String>
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_A`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/numan/linalg.rs:67:33
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn gauss_seidel(A: &Matrix, b: &Vector) -> Result<Vector, String>
[INFO] [stdout]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/numan.rs:197:21
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub fn gauss_newton(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |                     ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `λ0`
[INFO] [stdout]    --> src/numan.rs:197:50
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub fn gauss_newton(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |                                                  ^^ help: if this is intentional, prefix it with an underscore: `_λ0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ε`
[INFO] [stdout]    --> src/numan.rs:197:63
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub fn gauss_newton(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |                                                               ^ help: if this is intentional, prefix it with an underscore: `_ε`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/numan.rs:202:30
[INFO] [stdout]     |
[INFO] [stdout] 202 | pub fn gauss_newton_dampened(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |                              ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `λ0`
[INFO] [stdout]    --> src/numan.rs:202:59
[INFO] [stdout]     |
[INFO] [stdout] 202 | pub fn gauss_newton_dampened(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |                                                           ^^ help: if this is intentional, prefix it with an underscore: `_λ0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ε`
[INFO] [stdout]    --> src/numan.rs:202:72
[INFO] [stdout]     |
[INFO] [stdout] 202 | pub fn gauss_newton_dampened(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |                                                                        ^ help: if this is intentional, prefix it with an underscore: `_ε`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f3`
[INFO] [stdout]   --> src/tests.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 |   let f3: fn(f64) -> f64;
[INFO] [stdout]    |       ^^ help: if this is intentional, prefix it with an underscore: `_f3`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f4`
[INFO] [stdout]   --> src/tests.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 |   let f4: fn(f64) -> f64;
[INFO] [stdout]    |       ^^ help: if this is intentional, prefix it with an underscore: `_f4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f5`
[INFO] [stdout]   --> src/tests.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 |   let f5: fn(f64) -> f64;
[INFO] [stdout]    |       ^^ help: if this is intentional, prefix it with an underscore: `_f5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f6`
[INFO] [stdout]   --> src/tests.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 |   let f6: fn(f64) -> f64;
[INFO] [stdout]    |       ^^ help: if this is intentional, prefix it with an underscore: `_f6`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f7`
[INFO] [stdout]   --> src/tests.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 |   let f7: fn(f64) -> f64;
[INFO] [stdout]    |       ^^ help: if this is intentional, prefix it with an underscore: `_f7`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f8`
[INFO] [stdout]   --> src/tests.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 |   let f8: fn(f64) -> f64;
[INFO] [stdout]    |       ^^ help: if this is intentional, prefix it with an underscore: `_f8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `d_part` is never used
[INFO] [stdout]   --> src/numan.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn d_part(f: fn(&Vector) -> f64, x: &Vector, i: usize, h: f64, degree: u8) -> f64
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `partial` is never used
[INFO] [stdout]   --> src/numan.rs:82:8
[INFO] [stdout]    |
[INFO] [stdout] 82 | pub fn partial(f: fn(&Vector) -> f64, x: &Vector, i: usize, degree: u8) -> f64
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `jacobian` is never used
[INFO] [stdout]    --> src/numan.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn jacobian(f: Vec<fn(&Vector) -> f64>, x: &Vector, ε: f64) -> Matrix
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Df` is never used
[INFO] [stdout]    --> src/numan.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn Df(f: Vec<fn(&Vector) -> f64>, x: &Vector, ε: f64) -> Matrix
[INFO] [stdout]     |    ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rect` is never used
[INFO] [stdout]    --> src/numan.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub fn rect(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Rf` is never used
[INFO] [stdout]    --> src/numan.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 145 | pub fn Rf(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `trapez` is never used
[INFO] [stdout]    --> src/numan.rs:150:8
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub fn trapez(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Tf` is never used
[INFO] [stdout]    --> src/numan.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub fn Tf(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `Sf` is never used
[INFO] [stdout]    --> src/numan.rs:185:8
[INFO] [stdout]     |
[INFO] [stdout] 185 | pub fn Sf(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gauss_newton` is never used
[INFO] [stdout]    --> src/numan.rs:197:8
[INFO] [stdout]     |
[INFO] [stdout] 197 | pub fn gauss_newton(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gauss_newton_dampened` is never used
[INFO] [stdout]    --> src/numan.rs:202:8
[INFO] [stdout]     |
[INFO] [stdout] 202 | pub fn gauss_newton_dampened(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `newton_raphson_multidim` is never used
[INFO] [stdout]   --> src/numan/zeros.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub fn newton_raphson_multidim(f: &Vec<fn(&Vector) -> f64>, x0: &Vector, ε: f64) -> Vector
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zero` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn zero(n: usize) -> Matrix
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `id` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn id(n: usize) -> Matrix
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `matmul` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:44:8
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn matmul(A: &Matrix, B: &Matrix) -> Result<Matrix, String>
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `lr` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn lr(M: &Matrix) -> Result<(Matrix, Matrix), String>
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `householder` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn householder(v: Vector) -> Matrix
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `qr` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn qr(M: &Matrix) -> Result<(Matrix, Matrix), String>
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `gauss_seidel` is never used
[INFO] [stdout]   --> src/numan/linalg.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn gauss_seidel(A: &Matrix, b: &Vector) -> Result<Vector, String>
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `euler` is never used
[INFO] [stdout]  --> src/numan/ode.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn euler(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `midpoint` is never used
[INFO] [stdout]   --> src/numan/ode.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn midpoint(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mod_euler` is never used
[INFO] [stdout]   --> src/numan/ode.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn mod_euler(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `runge_kutta_4` is never used
[INFO] [stdout]   --> src/numan/ode.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn runge_kutta_4(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `RK4` is never used
[INFO] [stdout]   --> src/numan/ode.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn RK4(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "78301a3eaa37c3e6ee7399eb11af79747eacb70c928f38a7ec8fc888263cf2a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78301a3eaa37c3e6ee7399eb11af79747eacb70c928f38a7ec8fc888263cf2a8", kill_on_drop: false }`
[INFO] [stdout] 78301a3eaa37c3e6ee7399eb11af79747eacb70c928f38a7ec8fc888263cf2a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5e1fd75463ea8817bb986fde171e118a650cb5d24d7f869b8fb96bb208211e5b
[INFO] running `Command { std: "docker" "start" "-a" "5e1fd75463ea8817bb986fde171e118a650cb5d24d7f869b8fb96bb208211e5b", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `x1` is never read
[INFO] [stderr]   --> src/numan/zeros.rs:45:11
[INFO] [stderr]    |
[INFO] [stderr] 45 |   let mut x1 = x0;
[INFO] [stderr]    |           ^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x1`
[INFO] [stderr]   --> src/numan/zeros.rs:42:43
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn secant(f: fn(f64) -> f64, x0: f64, x1: f64, tolerance: f64) -> Option<f64>
[INFO] [stderr]    |                                           ^^ help: if this is intentional, prefix it with an underscore: `_x1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/numan/zeros.rs:75:32
[INFO] [stderr]    |
[INFO] [stderr] 75 | pub fn newton_raphson_multidim(f: &Vec<fn(&Vector) -> f64>, x0: &Vector, ε: f64) -> Vector
[INFO] [stderr]    |                                ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x0`
[INFO] [stderr]   --> src/numan/zeros.rs:75:61
[INFO] [stderr]    |
[INFO] [stderr] 75 | pub fn newton_raphson_multidim(f: &Vec<fn(&Vector) -> f64>, x0: &Vector, ε: f64) -> Vector
[INFO] [stderr]    |                                                             ^^ help: if this is intentional, prefix it with an underscore: `_x0`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ε`
[INFO] [stderr]   --> src/numan/zeros.rs:75:74
[INFO] [stderr]    |
[INFO] [stderr] 75 | pub fn newton_raphson_multidim(f: &Vec<fn(&Vector) -> f64>, x0: &Vector, ε: f64) -> Vector
[INFO] [stderr]    |                                                                          ^ help: if this is intentional, prefix it with an underscore: `_ε`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `A`
[INFO] [stderr]   --> src/numan/linalg.rs:44:15
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn matmul(A: &Matrix, B: &Matrix) -> Result<Matrix, String>
[INFO] [stderr]    |               ^ help: if this is intentional, prefix it with an underscore: `_A`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `B`
[INFO] [stderr]   --> src/numan/linalg.rs:44:27
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn matmul(A: &Matrix, B: &Matrix) -> Result<Matrix, String>
[INFO] [stderr]    |                           ^ help: if this is intentional, prefix it with an underscore: `_B`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `M`
[INFO] [stderr]   --> src/numan/linalg.rs:50:11
[INFO] [stderr]    |
[INFO] [stderr] 50 | pub fn lr(M: &Matrix) -> Result<(Matrix, Matrix), String>
[INFO] [stderr]    |           ^ help: if this is intentional, prefix it with an underscore: `_M`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/numan/linalg.rs:55:16
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn householder(v: Vector) -> Matrix
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `M`
[INFO] [stderr]   --> src/numan/linalg.rs:61:11
[INFO] [stderr]    |
[INFO] [stderr] 61 | pub fn qr(M: &Matrix) -> Result<(Matrix, Matrix), String>
[INFO] [stderr]    |           ^ help: if this is intentional, prefix it with an underscore: `_M`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `A`
[INFO] [stderr]   --> src/numan/linalg.rs:67:21
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn gauss_seidel(A: &Matrix, b: &Vector) -> Result<Vector, String>
[INFO] [stderr]    |                     ^ help: if this is intentional, prefix it with an underscore: `_A`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `b`
[INFO] [stderr]   --> src/numan/linalg.rs:67:33
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn gauss_seidel(A: &Matrix, b: &Vector) -> Result<Vector, String>
[INFO] [stderr]    |                                 ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/numan.rs:197:21
[INFO] [stderr]     |
[INFO] [stderr] 197 | pub fn gauss_newton(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stderr]     |                     ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `λ0`
[INFO] [stderr]    --> src/numan.rs:197:50
[INFO] [stderr]     |
[INFO] [stderr] 197 | pub fn gauss_newton(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stderr]     |                                                  ^^ help: if this is intentional, prefix it with an underscore: `_λ0`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ε`
[INFO] [stderr]    --> src/numan.rs:197:63
[INFO] [stderr]     |
[INFO] [stderr] 197 | pub fn gauss_newton(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stderr]     |                                                               ^ help: if this is intentional, prefix it with an underscore: `_ε`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]    --> src/numan.rs:202:30
[INFO] [stderr]     |
[INFO] [stderr] 202 | pub fn gauss_newton_dampened(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stderr]     |                              ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `λ0`
[INFO] [stderr]    --> src/numan.rs:202:59
[INFO] [stderr]     |
[INFO] [stderr] 202 | pub fn gauss_newton_dampened(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stderr]     |                                                           ^^ help: if this is intentional, prefix it with an underscore: `_λ0`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ε`
[INFO] [stderr]    --> src/numan.rs:202:72
[INFO] [stderr]     |
[INFO] [stderr] 202 | pub fn gauss_newton_dampened(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stderr]     |                                                                        ^ help: if this is intentional, prefix it with an underscore: `_ε`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f3`
[INFO] [stderr]   --> src/tests.rs:14:7
[INFO] [stderr]    |
[INFO] [stderr] 14 |   let f3: fn(f64) -> f64;
[INFO] [stderr]    |       ^^ help: if this is intentional, prefix it with an underscore: `_f3`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f4`
[INFO] [stderr]   --> src/tests.rs:15:7
[INFO] [stderr]    |
[INFO] [stderr] 15 |   let f4: fn(f64) -> f64;
[INFO] [stderr]    |       ^^ help: if this is intentional, prefix it with an underscore: `_f4`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f5`
[INFO] [stderr]   --> src/tests.rs:16:7
[INFO] [stderr]    |
[INFO] [stderr] 16 |   let f5: fn(f64) -> f64;
[INFO] [stderr]    |       ^^ help: if this is intentional, prefix it with an underscore: `_f5`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f6`
[INFO] [stderr]   --> src/tests.rs:17:7
[INFO] [stderr]    |
[INFO] [stderr] 17 |   let f6: fn(f64) -> f64;
[INFO] [stderr]    |       ^^ help: if this is intentional, prefix it with an underscore: `_f6`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f7`
[INFO] [stderr]   --> src/tests.rs:18:7
[INFO] [stderr]    |
[INFO] [stderr] 18 |   let f7: fn(f64) -> f64;
[INFO] [stderr]    |       ^^ help: if this is intentional, prefix it with an underscore: `_f7`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f8`
[INFO] [stderr]   --> src/tests.rs:19:7
[INFO] [stderr]    |
[INFO] [stderr] 19 |   let f8: fn(f64) -> f64;
[INFO] [stderr]    |       ^^ help: if this is intentional, prefix it with an underscore: `_f8`
[INFO] [stderr] 
[INFO] [stderr] warning: function `d_part` is never used
[INFO] [stderr]   --> src/numan.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 | pub fn d_part(f: fn(&Vector) -> f64, x: &Vector, i: usize, h: f64, degree: u8) -> f64
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `partial` is never used
[INFO] [stderr]   --> src/numan.rs:82:8
[INFO] [stderr]    |
[INFO] [stderr] 82 | pub fn partial(f: fn(&Vector) -> f64, x: &Vector, i: usize, degree: u8) -> f64
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `jacobian` is never used
[INFO] [stderr]    --> src/numan.rs:111:4
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn jacobian(f: Vec<fn(&Vector) -> f64>, x: &Vector, ε: f64) -> Matrix
[INFO] [stderr]     |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `Df` is never used
[INFO] [stderr]    --> src/numan.rs:128:4
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn Df(f: Vec<fn(&Vector) -> f64>, x: &Vector, ε: f64) -> Matrix
[INFO] [stderr]     |    ^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `rect` is never used
[INFO] [stderr]    --> src/numan.rs:133:8
[INFO] [stderr]     |
[INFO] [stderr] 133 | pub fn rect(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stderr]     |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `Rf` is never used
[INFO] [stderr]    --> src/numan.rs:145:8
[INFO] [stderr]     |
[INFO] [stderr] 145 | pub fn Rf(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stderr]     |        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `trapez` is never used
[INFO] [stderr]    --> src/numan.rs:150:8
[INFO] [stderr]     |
[INFO] [stderr] 150 | pub fn trapez(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `Tf` is never used
[INFO] [stderr]    --> src/numan.rs:162:8
[INFO] [stderr]     |
[INFO] [stderr] 162 | pub fn Tf(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stderr]     |        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `Sf` is never used
[INFO] [stderr]    --> src/numan.rs:185:8
[INFO] [stderr]     |
[INFO] [stderr] 185 | pub fn Sf(f: fn(f64) -> f64, a: f64, b: f64, h: f64) -> f64
[INFO] [stderr]     |        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `gauss_newton` is never used
[INFO] [stderr]    --> src/numan.rs:197:8
[INFO] [stderr]     |
[INFO] [stderr] 197 | pub fn gauss_newton(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `gauss_newton_dampened` is never used
[INFO] [stderr]    --> src/numan.rs:202:8
[INFO] [stderr]     |
[INFO] [stderr] 202 | pub fn gauss_newton_dampened(f: &Vec<fn(&Vector) -> f64>, λ0: &Vector, ε: f64) -> Vector
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `newton_raphson_multidim` is never used
[INFO] [stderr]   --> src/numan/zeros.rs:75:8
[INFO] [stderr]    |
[INFO] [stderr] 75 | pub fn newton_raphson_multidim(f: &Vec<fn(&Vector) -> f64>, x0: &Vector, ε: f64) -> Vector
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `zero` is never used
[INFO] [stderr]   --> src/numan/linalg.rs:27:8
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn zero(n: usize) -> Matrix
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `id` is never used
[INFO] [stderr]   --> src/numan/linalg.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn id(n: usize) -> Matrix
[INFO] [stderr]    |        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `matmul` is never used
[INFO] [stderr]   --> src/numan/linalg.rs:44:8
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn matmul(A: &Matrix, B: &Matrix) -> Result<Matrix, String>
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `lr` is never used
[INFO] [stderr]   --> src/numan/linalg.rs:50:8
[INFO] [stderr]    |
[INFO] [stderr] 50 | pub fn lr(M: &Matrix) -> Result<(Matrix, Matrix), String>
[INFO] [stderr]    |        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `householder` is never used
[INFO] [stderr]   --> src/numan/linalg.rs:55:4
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn householder(v: Vector) -> Matrix
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `qr` is never used
[INFO] [stderr]   --> src/numan/linalg.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 | pub fn qr(M: &Matrix) -> Result<(Matrix, Matrix), String>
[INFO] [stderr]    |        ^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `gauss_seidel` is never used
[INFO] [stderr]   --> src/numan/linalg.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 | pub fn gauss_seidel(A: &Matrix, b: &Vector) -> Result<Vector, String>
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `euler` is never used
[INFO] [stderr]  --> src/numan/ode.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn euler(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `midpoint` is never used
[INFO] [stderr]   --> src/numan/ode.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 | pub fn midpoint(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `mod_euler` is never used
[INFO] [stderr]   --> src/numan/ode.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 | pub fn mod_euler(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `runge_kutta_4` is never used
[INFO] [stderr]   --> src/numan/ode.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn runge_kutta_4(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `RK4` is never used
[INFO] [stderr]   --> src/numan/ode.rs:64:8
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn RK4(f: fn(f64, f64) -> f64, a: f64, b: f64, h: f64, y0: f64) -> (Vector, Vector)
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `numan` (bin "numan" test) generated 48 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/numan-2197bcaab9ae0f40)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::derivative ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5e1fd75463ea8817bb986fde171e118a650cb5d24d7f869b8fb96bb208211e5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e1fd75463ea8817bb986fde171e118a650cb5d24d7f869b8fb96bb208211e5b", kill_on_drop: false }`
[INFO] [stdout] 5e1fd75463ea8817bb986fde171e118a650cb5d24d7f869b8fb96bb208211e5b