[INFO] updating cached repository https://github.com/radialHuman/neural_network_from_scratch
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1427e0125b262d9e1d9d5a0a897a3bf2e95a3e9f
[INFO] checking radialHuman/neural_network_from_scratch against master#339f574809bf8e4166b8de3cdbe7df181d37af3d for pr-71896
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FradialHuman%2Fneural_network_from_scratch" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  78% (405/516)   
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Checking out files: 100% (516/516), done.
[INFO] validating manifest of git repo https://github.com/radialHuman/neural_network_from_scratch on toolchain 339f574809bf8e4166b8de3cdbe7df181d37af3d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/radialHuman/neural_network_from_scratch
[INFO] finished tweaking git repo https://github.com/radialHuman/neural_network_from_scratch
[INFO] tweaked toml for git repo https://github.com/radialHuman/neural_network_from_scratch written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/radialHuman/neural_network_from_scratch already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fa78d06c8854ca87b37803ccf3136a49a6c311f42817e44e5d85bc89b61e3375
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "fa78d06c8854ca87b37803ccf3136a49a6c311f42817e44e5d85bc89b61e3375"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking libmath v0.2.1
[INFO] [stderr]     Checking try_out v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable `X` should have a snake case name
[INFO] [stderr]   --> src/four_oops.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let X = vec![
[INFO] [stderr]    |         ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `X` should have a snake case name
[INFO] [stderr]   --> src/four_oops.rs:51:9
[INFO] [stderr]    |
[INFO] [stderr] 51 |     let X = vec![
[INFO] [stderr]    |         ^ help: convert the identifier to snake case (notice the capitalization): `x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.56s
[INFO] running `"docker" "inspect" "fa78d06c8854ca87b37803ccf3136a49a6c311f42817e44e5d85bc89b61e3375"`
[INFO] running `"docker" "rm" "-f" "fa78d06c8854ca87b37803ccf3136a49a6c311f42817e44e5d85bc89b61e3375"`
[INFO] [stdout] fa78d06c8854ca87b37803ccf3136a49a6c311f42817e44e5d85bc89b61e3375