[INFO] cloning repository https://github.com/Braden-Griebel/teensygrad
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Braden-Griebel/teensygrad" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBraden-Griebel%2Fteensygrad", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBraden-Griebel%2Fteensygrad'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a869027a1f38c9c5163ffeb55c7e2d4e5d387a71
[INFO] checking Braden-Griebel/teensygrad against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBraden-Griebel%2Fteensygrad" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Braden-Griebel/teensygrad
[INFO] finished tweaking git repo https://github.com/Braden-Griebel/teensygrad
[INFO] tweaked toml for git repo https://github.com/Braden-Griebel/teensygrad written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Braden-Griebel/teensygrad on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Braden-Griebel/teensygrad 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfb59c9722623c5f8b31c5a7dc0068f573e618c1ab5bb8a8524d3640fe090291
[INFO] running `Command { std: "docker" "start" "-a" "bfb59c9722623c5f8b31c5a7dc0068f573e618c1ab5bb8a8524d3640fe090291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfb59c9722623c5f8b31c5a7dc0068f573e618c1ab5bb8a8524d3640fe090291", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfb59c9722623c5f8b31c5a7dc0068f573e618c1ab5bb8a8524d3640fe090291", kill_on_drop: false }`
[INFO] [stdout] bfb59c9722623c5f8b31c5a7dc0068f573e618c1ab5bb8a8524d3640fe090291
[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=forbid -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fde815d4c5a900fb16cbabca1565b89f393796bce41d958cb02330d18d361d5
[INFO] running `Command { std: "docker" "start" "-a" "7fde815d4c5a900fb16cbabca1565b89f393796bce41d958cb02330d18d361d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking bytemuck v1.23.0
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]     Checking safe_arch v0.7.4
[INFO] [stderr]     Checking wide v0.7.32
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]    Compiling pyo3-build-config v0.22.6
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking simba v0.9.0
[INFO] [stderr]    Compiling pyo3-ffi v0.22.6
[INFO] [stderr]    Compiling pyo3-macros-backend v0.22.6
[INFO] [stderr]    Compiling pyo3 v0.22.6
[INFO] [stderr]    Compiling nalgebra-macros v0.2.2
[INFO] [stderr]    Compiling pyo3-macros v0.22.6
[INFO] [stderr]     Checking nalgebra v0.33.2
[INFO] [stderr]     Checking teensygrad v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `inner` is never read
[INFO] [stdout]   --> src/autograd/tensor.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Tensor {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 11 |     inner: Arc<RefCell<InnerTensor>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `op`, `value`, `grad`, and `predecessors` are never read
[INFO] [stdout]   --> src/autograd/tensor.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct InnerTensor {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] 16 |     /// The operation which created the Tensor
[INFO] [stdout] 17 |     op: Operation,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 18 |     /// The value contained in the Tensor
[INFO] [stdout] 19 |     value: DMatrix<f64>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     /// The gradient of the Tensor
[INFO] [stdout] 21 |     grad: DMatrix<f64>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 22 |     /// The predecessors of the Tensor (Tensors involved in the calculation creating this tensor)
[INFO] [stdout] 23 |     predecessors: TensorPredecessor,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `backwards` is never used
[INFO] [stdout]   --> src/autograd/tensor.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl InnerTensor{
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 27 |     /// Calculate the gradient of the Tensor during backpropagation
[INFO] [stdout] 28 |     fn backwards(){
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `None`, `One`, and `Two` are never constructed
[INFO] [stdout]   --> src/autograd/tensor.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum TensorPredecessor {
[INFO] [stdout]    |      ----------------- variants in this enum
[INFO] [stdout] 34 |     None,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 35 |     One(Arc<RefCell<InnerTensor>>),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 36 |     Two{
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Add`, `Sub`, `Sum`, `Pow`, and `MatMul` are never constructed
[INFO] [stdout]   --> src/autograd/tensor.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | enum Operation {
[INFO] [stdout]    |      --------- variants in this enum
[INFO] [stdout] 44 |     Add,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 45 |     Sub,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 46 |     Sum(Axis),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 47 |     Pow(f64),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 48 |     MatMul,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Row` and `Col` are never constructed
[INFO] [stdout]   --> src/autograd/tensor.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | enum Axis {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 53 |     Row,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 54 |     Col,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `teensygrad` (lib test) due to 1 previous error; 6 warnings emitted
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/lib.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn hello_from_bin() -> String {
[INFO] [stdout]   |                        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `inner` is never read
[INFO] [stdout]   --> src/autograd/tensor.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Tensor {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 11 |     inner: Arc<RefCell<InnerTensor>>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `op`, `value`, `grad`, and `predecessors` are never read
[INFO] [stdout]   --> src/autograd/tensor.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct InnerTensor {
[INFO] [stdout]    |        ----------- fields in this struct
[INFO] [stdout] 16 |     /// The operation which created the Tensor
[INFO] [stdout] 17 |     op: Operation,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 18 |     /// The value contained in the Tensor
[INFO] [stdout] 19 |     value: DMatrix<f64>,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     /// The gradient of the Tensor
[INFO] [stdout] 21 |     grad: DMatrix<f64>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 22 |     /// The predecessors of the Tensor (Tensors involved in the calculation creating this tensor)
[INFO] [stdout] 23 |     predecessors: TensorPredecessor,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `backwards` is never used
[INFO] [stdout]   --> src/autograd/tensor.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl InnerTensor{
[INFO] [stdout]    | ---------------- associated function in this implementation
[INFO] [stdout] 27 |     /// Calculate the gradient of the Tensor during backpropagation
[INFO] [stdout] 28 |     fn backwards(){
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `None`, `One`, and `Two` are never constructed
[INFO] [stdout]   --> src/autograd/tensor.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum TensorPredecessor {
[INFO] [stdout]    |      ----------------- variants in this enum
[INFO] [stdout] 34 |     None,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 35 |     One(Arc<RefCell<InnerTensor>>),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 36 |     Two{
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Add`, `Sub`, `Sum`, `Pow`, and `MatMul` are never constructed
[INFO] [stdout]   --> src/autograd/tensor.rs:44:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | enum Operation {
[INFO] [stdout]    |      --------- variants in this enum
[INFO] [stdout] 44 |     Add,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 45 |     Sub,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 46 |     Sum(Axis),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 47 |     Pow(f64),
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 48 |     MatMul,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Row` and `Col` are never constructed
[INFO] [stdout]   --> src/autograd/tensor.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | enum Axis {
[INFO] [stdout]    |      ---- variants in this enum
[INFO] [stdout] 53 |     Row,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 54 |     Col,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/lib.rs:7:24
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn hello_from_bin() -> String {
[INFO] [stdout]   |                        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `teensygrad` (lib) due to 1 previous error; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7fde815d4c5a900fb16cbabca1565b89f393796bce41d958cb02330d18d361d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fde815d4c5a900fb16cbabca1565b89f393796bce41d958cb02330d18d361d5", kill_on_drop: false }`
[INFO] [stdout] 7fde815d4c5a900fb16cbabca1565b89f393796bce41d958cb02330d18d361d5