[INFO] cloning repository https://github.com/unic0rn9k/autodiff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/unic0rn9k/autodiff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funic0rn9k%2Fautodiff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funic0rn9k%2Fautodiff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 17e78f5d085e87dd55857991b576da302331051a
[INFO] checking unic0rn9k/autodiff/17e78f5d085e87dd55857991b576da302331051a against master#85c39893a761fe4c050523278da4e7e45ab42b6e for pr-134688
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Funic0rn9k%2Fautodiff" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/unic0rn9k/autodiff on toolchain 85c39893a761fe4c050523278da4e7e45ab42b6e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+85c39893a761fe4c050523278da4e7e45ab42b6e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/unic0rn9k/autodiff
[INFO] finished tweaking git repo https://github.com/unic0rn9k/autodiff
[INFO] tweaked toml for git repo https://github.com/unic0rn9k/autodiff written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/unic0rn9k/autodiff 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" "+85c39893a761fe4c050523278da4e7e45ab42b6e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mnist v0.5.0
[INFO] [stderr]   Downloaded safe_arch v0.7.0
[INFO] [stderr]   Downloaded wide v0.7.11
[INFO] [stderr]   Downloaded curl-sys v0.4.63+curl-8.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+85c39893a761fe4c050523278da4e7e45ab42b6e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d05ba8ca54e139c77d1d477e2f30af8fe70fd0cf3c2064da6baa50c7e59119ae
[INFO] running `Command { std: "docker" "start" "-a" "d05ba8ca54e139c77d1d477e2f30af8fe70fd0cf3c2064da6baa50c7e59119ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d05ba8ca54e139c77d1d477e2f30af8fe70fd0cf3c2064da6baa50c7e59119ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d05ba8ca54e139c77d1d477e2f30af8fe70fd0cf3c2064da6baa50c7e59119ae", kill_on_drop: false }`
[INFO] [stdout] d05ba8ca54e139c77d1d477e2f30af8fe70fd0cf3c2064da6baa50c7e59119ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+85c39893a761fe4c050523278da4e7e45ab42b6e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 358387dc0bad86c0017c1b3e065ef399f2bc5ce75a5fe48239efdd3e0a823833
[INFO] running `Command { std: "docker" "start" "-a" "358387dc0bad86c0017c1b3e065ef399f2bc5ce75a5fe48239efdd3e0a823833", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling paste v1.0.13
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling matrixmultiply v0.3.7
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking safe_arch v0.7.0
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling curl v0.4.44
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking wide v0.7.11
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]    Compiling libz-sys v1.1.9
[INFO] [stderr]    Compiling openssl-sys v0.9.90
[INFO] [stderr]    Compiling curl-sys v0.4.63+curl-8.1.2
[INFO] [stderr]     Checking pbr v1.1.1
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking simba v0.8.1
[INFO] [stderr]     Checking mnist v0.5.0
[INFO] [stderr]    Compiling nalgebra-macros v0.2.1
[INFO] [stderr]     Checking nalgebra v0.32.3
[INFO] [stderr]     Checking autodiff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Matrix`
[INFO] [stdout]  --> src/value.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use nalgebra::{Matrix, Storage};
[INFO] [stdout]   |                    ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Matrix`
[INFO] [stdout]  --> src/value.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use nalgebra::{Matrix, Storage};
[INFO] [stdout]   |                    ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking mnist_classifier v0.1.0 (/opt/rustwide/workdir/examples/mnist)
[INFO] [stderr] error: could not compile `mnist_classifier` (bin "mnist_classifier")
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/85c39893a761fe4c050523278da4e7e45ab42b6e/bin/rustc --crate-name mnist_classifier --edition=2021 examples/mnist/src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=1a32cfd533d483bb -C extra-filename=-9caf316b2e73905a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern autodiff=/opt/rustwide/target/debug/deps/libautodiff-67392cc9ee4b3ec3.rmeta --extern mnist=/opt/rustwide/target/debug/deps/libmnist-0ea767ebb454d488.rmeta --cap-lints=forbid -L native=/usr/lib/x86_64-linux-gnu` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mnist_classifier` (bin "mnist_classifier" test)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/85c39893a761fe4c050523278da4e7e45ab42b6e/bin/rustc --crate-name mnist_classifier --edition=2021 examples/mnist/src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=235864e4a5e5195b -C extra-filename=-f5d8df8ee8f849ac --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern autodiff=/opt/rustwide/target/debug/deps/libautodiff-67392cc9ee4b3ec3.rmeta --extern mnist=/opt/rustwide/target/debug/deps/libmnist-0ea767ebb454d488.rmeta --cap-lints=forbid -L native=/usr/lib/x86_64-linux-gnu` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "358387dc0bad86c0017c1b3e065ef399f2bc5ce75a5fe48239efdd3e0a823833", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "358387dc0bad86c0017c1b3e065ef399f2bc5ce75a5fe48239efdd3e0a823833", kill_on_drop: false }`
[INFO] [stdout] 358387dc0bad86c0017c1b3e065ef399f2bc5ce75a5fe48239efdd3e0a823833