[INFO] cloning repository https://github.com/msminhas93/ferric-micrograd
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/msminhas93/ferric-micrograd" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsminhas93%2Fferric-micrograd", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsminhas93%2Fferric-micrograd'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] afb065255477ad84bcfa906faf2536791889f44f
[INFO] testing msminhas93/ferric-micrograd against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsminhas93%2Fferric-micrograd" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/msminhas93/ferric-micrograd
[INFO] finished tweaking git repo https://github.com/msminhas93/ferric-micrograd
[INFO] tweaked toml for git repo https://github.com/msminhas93/ferric-micrograd written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/msminhas93/ferric-micrograd on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/msminhas93/ferric-micrograd already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3599368b4cd22a1abf05911fb30382d5262bc2646054eca53647c8bf609892f
[INFO] running `Command { std: "docker" "start" "-a" "a3599368b4cd22a1abf05911fb30382d5262bc2646054eca53647c8bf609892f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3599368b4cd22a1abf05911fb30382d5262bc2646054eca53647c8bf609892f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3599368b4cd22a1abf05911fb30382d5262bc2646054eca53647c8bf609892f", kill_on_drop: false }`
[INFO] [stdout] a3599368b4cd22a1abf05911fb30382d5262bc2646054eca53647c8bf609892f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34903f94aa9f9dfcf0972162df44e4376b079fca36c46f624bf5394909147a41
[INFO] running `Command { std: "docker" "start" "-a" "34903f94aa9f9dfcf0972162df44e4376b079fca36c46f624bf5394909147a41", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling libm v0.2.13
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v6.0.0
[INFO] [stderr]    Compiling option-ext v0.2.0
[INFO] [stderr]    Compiling font-kit v0.14.2
[INFO] [stderr]    Compiling cc v1.2.20
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling bytemuck v1.22.0
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling bitflags v2.9.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling gif v0.12.0
[INFO] [stderr]    Compiling float-ord v0.3.2
[INFO] [stderr]    Compiling ttf-parser v0.20.0
[INFO] [stderr]    Compiling dirs-sys v0.4.1
[INFO] [stderr]    Compiling dirs v5.0.1
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling pathfinder_simd v0.5.4
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling rand v0.9.1
[INFO] [stderr]    Compiling freetype-sys v0.20.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling pathfinder_geometry v0.5.1
[INFO] [stderr]    Compiling image v0.24.9
[INFO] [stderr]    Compiling chrono v0.4.40
[INFO] [stderr]    Compiling rand_distr v0.5.1
[INFO] [stderr]    Compiling plotters-bitmap v0.3.7
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling ferric-micrograd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `pow`, `sub`, and `div` are never used
[INFO] [stdout]   --> src/engine.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | impl Value {
[INFO] [stdout]    | ---------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 60 |     pub fn pow(self: &Rc<Self>, exponent: f64) -> Rc<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 91 |     pub fn sub(self: &Rc<Self>, other: &Rc<Self>) -> Rc<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |     pub fn div(self: &Rc<Self>, other: &Rc<Self>) -> Rc<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.02s
[INFO] running `Command { std: "docker" "inspect" "34903f94aa9f9dfcf0972162df44e4376b079fca36c46f624bf5394909147a41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34903f94aa9f9dfcf0972162df44e4376b079fca36c46f624bf5394909147a41", kill_on_drop: false }`
[INFO] [stdout] 34903f94aa9f9dfcf0972162df44e4376b079fca36c46f624bf5394909147a41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 607ad1f692f94bb67b7de660f1f920cbe6f50ebd29ec771f39b92e8ad9890ac4
[INFO] running `Command { std: "docker" "start" "-a" "607ad1f692f94bb67b7de660f1f920cbe6f50ebd29ec771f39b92e8ad9890ac4", kill_on_drop: false }`
[INFO] [stderr]    Compiling ferric-micrograd v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "607ad1f692f94bb67b7de660f1f920cbe6f50ebd29ec771f39b92e8ad9890ac4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "607ad1f692f94bb67b7de660f1f920cbe6f50ebd29ec771f39b92e8ad9890ac4", kill_on_drop: false }`
[INFO] [stdout] 607ad1f692f94bb67b7de660f1f920cbe6f50ebd29ec771f39b92e8ad9890ac4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 77c603b25328cb43e4748b5b2952689a235736b7f4a06d2081072e4331b61be8
[INFO] running `Command { std: "docker" "start" "-a" "77c603b25328cb43e4748b5b2952689a235736b7f4a06d2081072e4331b61be8", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ferric_micrograd-5c8a5fa35a48ec83)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test engine::tests::test_sanity_check ... ok
[INFO] [stdout] test engine::tests::test_more_ops ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "77c603b25328cb43e4748b5b2952689a235736b7f4a06d2081072e4331b61be8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77c603b25328cb43e4748b5b2952689a235736b7f4a06d2081072e4331b61be8", kill_on_drop: false }`
[INFO] [stdout] 77c603b25328cb43e4748b5b2952689a235736b7f4a06d2081072e4331b61be8