[INFO] cloning repository https://github.com/dhruvkjain/mnist-nn-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dhruvkjain/mnist-nn-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruvkjain%2Fmnist-nn-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruvkjain%2Fmnist-nn-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] adce5d26a49af388c10ddebd41284013a044f58b
[INFO] checking dhruvkjain/mnist-nn-rs against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdhruvkjain%2Fmnist-nn-rs" "/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/dhruvkjain/mnist-nn-rs
[INFO] finished tweaking git repo https://github.com/dhruvkjain/mnist-nn-rs
[INFO] tweaked toml for git repo https://github.com/dhruvkjain/mnist-nn-rs written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dhruvkjain/mnist-nn-rs on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dhruvkjain/mnist-nn-rs 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b4561abea117a82eda746034cda7db36de6c7532fe003287f0ef03e0cf30f34
[INFO] running `Command { std: "docker" "start" "-a" "8b4561abea117a82eda746034cda7db36de6c7532fe003287f0ef03e0cf30f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b4561abea117a82eda746034cda7db36de6c7532fe003287f0ef03e0cf30f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b4561abea117a82eda746034cda7db36de6c7532fe003287f0ef03e0cf30f34", kill_on_drop: false }`
[INFO] [stdout] 8b4561abea117a82eda746034cda7db36de6c7532fe003287f0ef03e0cf30f34
[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=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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 812ba3bf9a79a620ed33f7c46f780893015b245b6b3508718d52b7dd05e0404c
[INFO] running `Command { std: "docker" "start" "-a" "812ba3bf9a79a620ed33f7c46f780893015b245b6b3508718d52b7dd05e0404c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling libm v0.2.13
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling zerocopy v0.8.25
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling siphasher v1.0.1
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling rustversion v1.0.20
[INFO] [stderr]     Checking bitflags v2.9.0
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking array-init-cursor v0.2.1
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]     Checking planus v0.3.1
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking foldhash v0.1.5
[INFO] [stderr]    Compiling polars-utils v0.47.0
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking simdutf8 v0.1.5
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]     Checking iana-time-zone v0.1.63
[INFO] [stderr]     Checking raw-cpuid v11.5.0
[INFO] [stderr]    Compiling polars-schema v0.47.0
[INFO] [stderr]     Checking castaway v0.2.3
[INFO] [stderr]    Compiling polars-arrow v0.47.0
[INFO] [stderr]    Compiling matrixmultiply v0.3.9
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking memmap2 v0.9.5
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]     Checking sysinfo v0.33.1
[INFO] [stderr]     Checking phf v0.11.3
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]    Compiling polars-compute v0.47.0
[INFO] [stderr]     Checking streaming-iterator v0.1.9
[INFO] [stderr]     Checking ethnum v1.5.1
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]     Checking dyn-clone v1.0.19
[INFO] [stderr]     Checking fast-float2 v0.2.3
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking atoi_simd v0.16.0
[INFO] [stderr]     Checking rustix v0.38.44
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]    Compiling cc v1.2.21
[INFO] [stderr]    Compiling polars-core v0.47.0
[INFO] [stderr]    Compiling polars-ops v0.47.0
[INFO] [stderr]     Checking xxhash-rust v0.8.15
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling polars-plan v0.47.0
[INFO] [stdout] error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/ethnum-1.5.1/src/error.rs:16:14
[INFO] [stdout]    |
[INFO] [stdout] 16 |     unsafe { mem::transmute(()) }
[INFO] [stdout]    |              ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: source type: `()` (0 bits)
[INFO] [stdout]    = note: target type: `TryFromIntError` (8 bits)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking glob v0.3.2
[INFO] [stderr]     Checking home v0.5.11
[INFO] [stderr]     Checking ahash v0.8.11
[INFO] [stdout] For more information about this error, try `rustc --explain E0512`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ethnum` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "812ba3bf9a79a620ed33f7c46f780893015b245b6b3508718d52b7dd05e0404c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "812ba3bf9a79a620ed33f7c46f780893015b245b6b3508718d52b7dd05e0404c", kill_on_drop: false }`
[INFO] [stdout] 812ba3bf9a79a620ed33f7c46f780893015b245b6b3508718d52b7dd05e0404c
