[INFO] cloning repository https://github.com/anish-palakurthi/micrograd-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anish-palakurthi/micrograd-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanish-palakurthi%2Fmicrograd-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanish-palakurthi%2Fmicrograd-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 751aece47a929395cf41b1cec9d191dadbfbbcda
[INFO] testing anish-palakurthi/micrograd-rust against try#28f95933dc0727396c07b48d0a8cb5211b7fb472 for pr-154065-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanish-palakurthi%2Fmicrograd-rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/anish-palakurthi/micrograd-rust
[INFO] finished tweaking git repo https://github.com/anish-palakurthi/micrograd-rust
[INFO] tweaked toml for git repo https://github.com/anish-palakurthi/micrograd-rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/anish-palakurthi/micrograd-rust on toolchain 28f95933dc0727396c07b48d0a8cb5211b7fb472
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/anish-palakurthi/micrograd-rust 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" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8012ed01d64ab321edb7ac6ec166f0771086b424538fdc982449410e4ba434a
[INFO] running `Command { std: "docker" "start" "-a" "c8012ed01d64ab321edb7ac6ec166f0771086b424538fdc982449410e4ba434a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8012ed01d64ab321edb7ac6ec166f0771086b424538fdc982449410e4ba434a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8012ed01d64ab321edb7ac6ec166f0771086b424538fdc982449410e4ba434a", kill_on_drop: false }`
[INFO] [stdout] c8012ed01d64ab321edb7ac6ec166f0771086b424538fdc982449410e4ba434a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2520f180b830148003c12c3264fe8721b90d7743731c6f71a27f34d934a6ad5a
[INFO] running `Command { std: "docker" "start" "-a" "2520f180b830148003c12c3264fe8721b90d7743731c6f71a27f34d934a6ad5a", kill_on_drop: false }`
[INFO] [stderr]    Compiling micrograd-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value captured by `self.grad` is never read
[INFO] [stdout]   --> src/main.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 self.grad += (rhs * self.data.powf(rhs - 1.0)) * res.grad;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `self.grad` is never read
[INFO] [stdout]   --> src/main.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 self.grad += (rhs * self.data.powf(rhs - 1.0)) * res.grad;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `self.grad` is never read
[INFO] [stdout]   --> src/main.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 self.grad += (res.data > 0.0) as i32 as f32 * res.grad;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `self.grad` is never read
[INFO] [stdout]   --> src/main.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 self.grad += (res.data > 0.0) as i32 as f32 * res.grad;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `self.grad` is never read
[INFO] [stdout]   --> src/main.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 self.grad += res_grad;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `self.grad` is never read
[INFO] [stdout]   --> src/main.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 self.grad += res_grad;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `rhs.grad` is never read
[INFO] [stdout]   --> src/main.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 rhs.grad += res_grad;
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rhs.grad` is never read
[INFO] [stdout]   --> src/main.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 rhs.grad += res_grad;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `self.grad` is never read
[INFO] [stdout]    --> src/main.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 self.grad += rhs.data * res_grad;
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `self.grad` is never read
[INFO] [stdout]    --> src/main.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 self.grad += rhs.data * res_grad;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `rhs.grad` is never read
[INFO] [stdout]    --> src/main.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 rhs.grad += self.data * res_grad;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rhs.grad` is never read
[INFO] [stdout]    --> src/main.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 rhs.grad += self.data * res_grad;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "2520f180b830148003c12c3264fe8721b90d7743731c6f71a27f34d934a6ad5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2520f180b830148003c12c3264fe8721b90d7743731c6f71a27f34d934a6ad5a", kill_on_drop: false }`
[INFO] [stdout] 2520f180b830148003c12c3264fe8721b90d7743731c6f71a27f34d934a6ad5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ba31fe4d9eee4b79fc12508606e7b074517a6f117bdd49343a205798372add55
[INFO] running `Command { std: "docker" "start" "-a" "ba31fe4d9eee4b79fc12508606e7b074517a6f117bdd49343a205798372add55", kill_on_drop: false }`
[INFO] [stderr]    Compiling micrograd-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value captured by `self.grad` is never read
[INFO] [stdout]   --> src/main.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 self.grad += (rhs * self.data.powf(rhs - 1.0)) * res.grad;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `self.grad` is never read
[INFO] [stdout]   --> src/main.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 self.grad += (rhs * self.data.powf(rhs - 1.0)) * res.grad;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `self.grad` is never read
[INFO] [stdout]   --> src/main.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 self.grad += (res.data > 0.0) as i32 as f32 * res.grad;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `self.grad` is never read
[INFO] [stdout]   --> src/main.rs:49:17
[INFO] [stdout]    |
[INFO] [stdout] 49 |                 self.grad += (res.data > 0.0) as i32 as f32 * res.grad;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `self.grad` is never read
[INFO] [stdout]   --> src/main.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 self.grad += res_grad;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `self.grad` is never read
[INFO] [stdout]   --> src/main.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 self.grad += res_grad;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `rhs.grad` is never read
[INFO] [stdout]   --> src/main.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 rhs.grad += res_grad;
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rhs.grad` is never read
[INFO] [stdout]   --> src/main.rs:92:17
[INFO] [stdout]    |
[INFO] [stdout] 92 |                 rhs.grad += res_grad;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `self.grad` is never read
[INFO] [stdout]    --> src/main.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 self.grad += rhs.data * res_grad;
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `self.grad` is never read
[INFO] [stdout]    --> src/main.rs:112:17
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 self.grad += rhs.data * res_grad;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value captured by `rhs.grad` is never read
[INFO] [stdout]    --> src/main.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 rhs.grad += self.data * res_grad;
[INFO] [stdout]     |                 ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: did you mean to capture by reference instead?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rhs.grad` is never read
[INFO] [stdout]    --> src/main.rs:113:17
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 rhs.grad += self.data * res_grad;
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:223:13
[INFO] [stdout]     |
[INFO] [stdout] 223 |         let mut a = Value::new(-4.0, vec![], "".to_string());
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:224:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |         let mut b = Value::new(2.0, vec![], "".to_string());
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "ba31fe4d9eee4b79fc12508606e7b074517a6f117bdd49343a205798372add55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba31fe4d9eee4b79fc12508606e7b074517a6f117bdd49343a205798372add55", kill_on_drop: false }`
[INFO] [stdout] ba31fe4d9eee4b79fc12508606e7b074517a6f117bdd49343a205798372add55
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+28f95933dc0727396c07b48d0a8cb5211b7fb472" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 763991d584cbee7ef533b2356dbe8416a406b91cc5e641e33fba6f712ab4ff4f
[INFO] running `Command { std: "docker" "start" "-a" "763991d584cbee7ef533b2356dbe8416a406b91cc5e641e33fba6f712ab4ff4f", kill_on_drop: false }`
[INFO] [stderr] warning: value captured by `self.grad` is never read
[INFO] [stderr]   --> src/main.rs:34:17
[INFO] [stderr]    |
[INFO] [stderr] 34 |                 self.grad += (rhs * self.data.powf(rhs - 1.0)) * res.grad;
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: did you mean to capture by reference instead?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `self.grad` is never read
[INFO] [stderr]   --> src/main.rs:34:17
[INFO] [stderr]    |
[INFO] [stderr] 34 |                 self.grad += (rhs * self.data.powf(rhs - 1.0)) * res.grad;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value captured by `self.grad` is never read
[INFO] [stderr]   --> src/main.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |                 self.grad += (res.data > 0.0) as i32 as f32 * res.grad;
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: did you mean to capture by reference instead?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `self.grad` is never read
[INFO] [stderr]   --> src/main.rs:49:17
[INFO] [stderr]    |
[INFO] [stderr] 49 |                 self.grad += (res.data > 0.0) as i32 as f32 * res.grad;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value captured by `self.grad` is never read
[INFO] [stderr]   --> src/main.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 91 |                 self.grad += res_grad;
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: did you mean to capture by reference instead?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `self.grad` is never read
[INFO] [stderr]   --> src/main.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 91 |                 self.grad += res_grad;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value captured by `rhs.grad` is never read
[INFO] [stderr]   --> src/main.rs:92:17
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 rhs.grad += res_grad;
[INFO] [stderr]    |                 ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: did you mean to capture by reference instead?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `rhs.grad` is never read
[INFO] [stderr]   --> src/main.rs:92:17
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 rhs.grad += res_grad;
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value captured by `self.grad` is never read
[INFO] [stderr]    --> src/main.rs:112:17
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 self.grad += rhs.data * res_grad;
[INFO] [stderr]     |                 ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: did you mean to capture by reference instead?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `self.grad` is never read
[INFO] [stderr]    --> src/main.rs:112:17
[INFO] [stderr]     |
[INFO] [stderr] 112 |                 self.grad += rhs.data * res_grad;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value captured by `rhs.grad` is never read
[INFO] [stderr]    --> src/main.rs:113:17
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 rhs.grad += self.data * res_grad;
[INFO] [stderr]     |                 ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: did you mean to capture by reference instead?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `rhs.grad` is never read
[INFO] [stderr]    --> src/main.rs:113:17
[INFO] [stderr]     |
[INFO] [stderr] 113 |                 rhs.grad += self.data * res_grad;
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:223:13
[INFO] [stderr]     |
[INFO] [stderr] 223 |         let mut a = Value::new(-4.0, vec![], "".to_string());
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:224:13
[INFO] [stderr]     |
[INFO] [stderr] 224 |         let mut b = Value::new(2.0, vec![], "".to_string());
[INFO] [stderr]     |             ----^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `micrograd-rust` (bin "micrograd-rust" test) generated 14 warnings (run `cargo fix --bin "micrograd-rust" -p micrograd-rust --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/micrograd_rust-efff16e6511ec8c0)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::test_value_addition ... ok
[INFO] [stdout] test tests::test_value_negation ... ok
[INFO] [stdout] test tests::test_value_relu ... ok
[INFO] [stdout] test tests::test_value_pow ... ok
[INFO] [stdout] test tests::test_value_subtraction ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'tests::test_more_ops' (17) panicked at src/main.rs:60:39:
[INFO] [stderr] misaligned pointer dereference: address must be a multiple of 0x8 but is 0x7e4a4cdab413
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x61464c796078 - std[d054f6f42beb1baa]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x61464c796078 - std[d054f6f42beb1baa]::backtrace_rs::backtrace::trace_unsynchronized::<std[d054f6f42beb1baa]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x61464c796078 - std[d054f6f42beb1baa]::sys::backtrace::_print_fmt
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]    3:     0x61464c796078 - <<std[d054f6f42beb1baa]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[5a1c3e9896636f3a]::fmt::Display>::fmt
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]    4:     0x61464c7aa91a - <core[5a1c3e9896636f3a]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]    5:     0x61464c7aa91a - core[5a1c3e9896636f3a]::fmt::write
[INFO] [stderr]    6:     0x61464c79b3e2 - std[d054f6f42beb1baa]::io::default_write_fmt::<std[d054f6f42beb1baa]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/io/mod.rs:622:11
[INFO] [stderr]    7:     0x61464c79b3e2 - <std[d054f6f42beb1baa]::sys::stdio::unix::Stderr as std[d054f6f42beb1baa]::io::Write>::write_fmt
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/io/mod.rs:1977:13
[INFO] [stderr]    8:     0x61464c775226 - <std[d054f6f42beb1baa]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]    9:     0x61464c775226 - std[d054f6f42beb1baa]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/panicking.rs:292:27
[INFO] [stderr]   10:     0x61464c78e5e1 - std[d054f6f42beb1baa]::panicking::default_hook
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/panicking.rs:319:9
[INFO] [stderr]   11:     0x61464c72a67c - <alloc[154f689e5dd3bae5]::boxed::Box<dyn for<'a, 'b> core[5a1c3e9896636f3a]::ops::function::Fn<(&'a std[d054f6f42beb1baa]::panic::PanicHookInfo<'b>,), Output = ()> + core[5a1c3e9896636f3a]::marker::Send + core[5a1c3e9896636f3a]::marker::Sync> as core[5a1c3e9896636f3a]::ops::function::Fn<(&std[d054f6f42beb1baa]::panic::PanicHookInfo,)>>::call
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/alloc/src/boxed.rs:2291:9
[INFO] [stderr]   12:     0x61464c72a67c - test[fad20673b750c10e]::test_main_inner::<test[fad20673b750c10e]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/test/src/lib.rs:155:21
[INFO] [stderr]   13:     0x61464c78e7d2 - <alloc[154f689e5dd3bae5]::boxed::Box<dyn for<'a, 'b> core[5a1c3e9896636f3a]::ops::function::Fn<(&'a std[d054f6f42beb1baa]::panic::PanicHookInfo<'b>,), Output = ()> + core[5a1c3e9896636f3a]::marker::Send + core[5a1c3e9896636f3a]::marker::Sync> as core[5a1c3e9896636f3a]::ops::function::Fn<(&std[d054f6f42beb1baa]::panic::PanicHookInfo,)>>::call
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/alloc/src/boxed.rs:2291:9
[INFO] [stderr]   14:     0x61464c78e7d2 - std[d054f6f42beb1baa]::panicking::panic_with_hook
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/panicking.rs:833:13
[INFO] [stderr]   15:     0x61464c7752e2 - std[d054f6f42beb1baa]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/panicking.rs:698:13
[INFO] [stderr]   16:     0x61464c76cc79 - std[d054f6f42beb1baa]::sys::backtrace::__rust_end_short_backtrace::<std[d054f6f42beb1baa]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]   17:     0x61464c775ffd - __rustc[7ab284efd7f33ea8]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/panicking.rs:689:5
[INFO] [stderr]   18:     0x61464c7aae8d - core[5a1c3e9896636f3a]::panicking::panic_nounwind_fmt::runtime
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/core/src/panicking.rs:122:22
[INFO] [stderr]   19:     0x61464c7aae8d - core[5a1c3e9896636f3a]::panicking::panic_nounwind_fmt
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/core/src/intrinsics/mod.rs:2450:9
[INFO] [stderr]   20:     0x61464c7ab019 - core[5a1c3e9896636f3a]::panicking::panic_misaligned_pointer_dereference
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/core/src/panicking.rs:284:5
[INFO] [stderr]   21:     0x61464c71454b - <micrograd_rust[cfcf526d313c1271]::Value>::build_topo
[INFO] [stderr]                                at /opt/rustwide/workdir/src/main.rs:60:39
[INFO] [stderr]   22:     0x61464c71455f - <micrograd_rust[cfcf526d313c1271]::Value>::build_topo
[INFO] [stderr]                                at /opt/rustwide/workdir/src/main.rs:60:13
[INFO] [stderr]   23:     0x61464c714fa3 - <micrograd_rust[cfcf526d313c1271]::Value>::backward
[INFO] [stderr]                                at /opt/rustwide/workdir/src/main.rs:69:9
[INFO] [stderr]   24:     0x61464c718ceb - micrograd_rust[cfcf526d313c1271]::tests::test_more_ops
[INFO] [stderr]                                at /opt/rustwide/workdir/src/main.rs:235:11
[INFO] [stderr]   25:     0x61464c714167 - micrograd_rust[cfcf526d313c1271]::tests::test_more_ops::{closure#0}
[INFO] [stderr]                                at /opt/rustwide/workdir/src/main.rs:222:23
[INFO] [stderr]   26:     0x61464c71d366 - <micrograd_rust[cfcf526d313c1271]::tests::test_more_ops::{closure#0} as core[5a1c3e9896636f3a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   27:     0x61464c71d75b - <fn() -> core[5a1c3e9896636f3a]::result::Result<(), alloc[154f689e5dd3bae5]::string::String> as core[5a1c3e9896636f3a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   28:     0x61464c71d75b - test[fad20673b750c10e]::__rust_begin_short_backtrace::<core[5a1c3e9896636f3a]::result::Result<(), alloc[154f689e5dd3bae5]::string::String>, fn() -> core[5a1c3e9896636f3a]::result::Result<(), alloc[154f689e5dd3bae5]::string::String>>
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/test/src/lib.rs:724:18
[INFO] [stderr]   29:     0x61464c72afd5 - test[fad20673b750c10e]::run_test_in_process::{closure#0}
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/test/src/lib.rs:747:74
[INFO] [stderr]   30:     0x61464c72afd5 - <core[5a1c3e9896636f3a]::panic::unwind_safe::AssertUnwindSafe<test[fad20673b750c10e]::run_test_in_process::{closure#0}> as core[5a1c3e9896636f3a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stderr]   31:     0x61464c72afd5 - std[d054f6f42beb1baa]::panicking::catch_unwind::do_call::<core[5a1c3e9896636f3a]::panic::unwind_safe::AssertUnwindSafe<test[fad20673b750c10e]::run_test_in_process::{closure#0}>, core[5a1c3e9896636f3a]::result::Result<(), alloc[154f689e5dd3bae5]::string::String>>
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/panicking.rs:581:40
[INFO] [stderr]   32:     0x61464c72afd5 - std[d054f6f42beb1baa]::panicking::catch_unwind::<core[5a1c3e9896636f3a]::result::Result<(), alloc[154f689e5dd3bae5]::string::String>, core[5a1c3e9896636f3a]::panic::unwind_safe::AssertUnwindSafe<test[fad20673b750c10e]::run_test_in_process::{closure#0}>>
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/panicking.rs:544:19
[INFO] [stderr]   33:     0x61464c72afd5 - std[d054f6f42beb1baa]::panic::catch_unwind::<core[5a1c3e9896636f3a]::panic::unwind_safe::AssertUnwindSafe<test[fad20673b750c10e]::run_test_in_process::{closure#0}>, core[5a1c3e9896636f3a]::result::Result<(), alloc[154f689e5dd3bae5]::string::String>>
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/panic.rs:359:14
[INFO] [stderr]   34:     0x61464c72afd5 - test[fad20673b750c10e]::run_test_in_process
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/test/src/lib.rs:747:27
[INFO] [stderr]   35:     0x61464c72afd5 - test[fad20673b750c10e]::run_test::{closure#0}
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/test/src/lib.rs:668:43
[INFO] [stderr]   36:     0x61464c725b34 - test[fad20673b750c10e]::run_test::{closure#1}
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/test/src/lib.rs:698:41
[INFO] [stderr]   37:     0x61464c725b34 - std[d054f6f42beb1baa]::sys::backtrace::__rust_begin_short_backtrace::<test[fad20673b750c10e]::run_test::{closure#1}, ()>
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/sys/backtrace.rs:166:18
[INFO] [stderr]   38:     0x61464c72e052 - std[d054f6f42beb1baa]::thread::lifecycle::spawn_unchecked::<test[fad20673b750c10e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stderr]   39:     0x61464c72e052 - <core[5a1c3e9896636f3a]::panic::unwind_safe::AssertUnwindSafe<std[d054f6f42beb1baa]::thread::lifecycle::spawn_unchecked<test[fad20673b750c10e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[5a1c3e9896636f3a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stderr]   40:     0x61464c72e052 - std[d054f6f42beb1baa]::panicking::catch_unwind::do_call::<core[5a1c3e9896636f3a]::panic::unwind_safe::AssertUnwindSafe<std[d054f6f42beb1baa]::thread::lifecycle::spawn_unchecked<test[fad20673b750c10e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/panicking.rs:581:40
[INFO] [stderr]   41:     0x61464c72e052 - std[d054f6f42beb1baa]::panicking::catch_unwind::<(), core[5a1c3e9896636f3a]::panic::unwind_safe::AssertUnwindSafe<std[d054f6f42beb1baa]::thread::lifecycle::spawn_unchecked<test[fad20673b750c10e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/panicking.rs:544:19
[INFO] [stderr]   42:     0x61464c72e052 - std[d054f6f42beb1baa]::panic::catch_unwind::<core[5a1c3e9896636f3a]::panic::unwind_safe::AssertUnwindSafe<std[d054f6f42beb1baa]::thread::lifecycle::spawn_unchecked<test[fad20673b750c10e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/panic.rs:359:14
[INFO] [stderr]   43:     0x61464c72e052 - std[d054f6f42beb1baa]::thread::lifecycle::spawn_unchecked::<test[fad20673b750c10e]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stderr]   44:     0x61464c72e052 - <std[d054f6f42beb1baa]::thread::lifecycle::spawn_unchecked<test[fad20673b750c10e]::run_test::{closure#1}, ()>::{closure#1} as core[5a1c3e9896636f3a]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   45:     0x61464c7959df - <alloc[154f689e5dd3bae5]::boxed::Box<dyn core[5a1c3e9896636f3a]::ops::function::FnOnce<(), Output = ()> + core[5a1c3e9896636f3a]::marker::Send> as core[5a1c3e9896636f3a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/alloc/src/boxed.rs:2277:9
[INFO] [stderr]   46:     0x61464c7959df - <std[d054f6f42beb1baa]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]                                at /rustc/28f95933dc0727396c07b48d0a8cb5211b7fb472/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stderr]   47:     0x7e4db01faaa4 - <unknown>
[INFO] [stderr]   48:     0x7e4db0287a64 - clone
[INFO] [stderr]   49:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `--bin micrograd-rust`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/micrograd_rust-efff16e6511ec8c0` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "763991d584cbee7ef533b2356dbe8416a406b91cc5e641e33fba6f712ab4ff4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "763991d584cbee7ef533b2356dbe8416a406b91cc5e641e33fba6f712ab4ff4f", kill_on_drop: false }`
[INFO] [stdout] 763991d584cbee7ef533b2356dbe8416a406b91cc5e641e33fba6f712ab4ff4f
