[INFO] cloning repository https://github.com/jeff-pow/neural-net
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeff-pow/neural-net" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeff-pow%2Fneural-net", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeff-pow%2Fneural-net'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 48ce6e5b57e373a217589c689c06b82db1469f60
[INFO] checking jeff-pow/neural-net against try#df1b9bf194c9183fb7c0604484171064069ce232 for pr-149195-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeff-pow%2Fneural-net" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jeff-pow/neural-net
[INFO] finished tweaking git repo https://github.com/jeff-pow/neural-net
[INFO] tweaked toml for git repo https://github.com/jeff-pow/neural-net written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jeff-pow/neural-net on toolchain df1b9bf194c9183fb7c0604484171064069ce232
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jeff-pow/neural-net 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" "+df1b9bf194c9183fb7c0604484171064069ce232" "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]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking jeff-pow/neural-net against try#df1b9bf194c9183fb7c0604484171064069ce232 for pr-149195-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeff-pow%2Fneural-net" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jeff-pow/neural-net
[INFO] finished tweaking git repo https://github.com/jeff-pow/neural-net
[INFO] tweaked toml for git repo https://github.com/jeff-pow/neural-net written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jeff-pow/neural-net on toolchain df1b9bf194c9183fb7c0604484171064069ce232
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jeff-pow/neural-net 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" "+df1b9bf194c9183fb7c0604484171064069ce232" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pbr v1.1.1
[INFO] [stderr]   Downloaded mnist v0.6.0
[INFO] [stderr]   Downloaded curl v0.4.44
[INFO] [stderr]   Downloaded curl-sys v0.4.71+curl-8.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e41d161533ed3c92731bfe0035962abe28f7d7123552533584051d81fd138bb6
[INFO] running `Command { std: "docker" "start" "-a" "e41d161533ed3c92731bfe0035962abe28f7d7123552533584051d81fd138bb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e41d161533ed3c92731bfe0035962abe28f7d7123552533584051d81fd138bb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e41d161533ed3c92731bfe0035962abe28f7d7123552533584051d81fd138bb6", kill_on_drop: false }`
[INFO] [stdout] e41d161533ed3c92731bfe0035962abe28f7d7123552533584051d81fd138bb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+df1b9bf194c9183fb7c0604484171064069ce232" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df4672d243512c7c15a39c18de7a1589d1bb9efdbd6f235aaa97be62a67b9df7
[INFO] running `Command { std: "docker" "start" "-a" "df4672d243512c7c15a39c18de7a1589d1bb9efdbd6f235aaa97be62a67b9df7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling pkg-config v0.3.29
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling curl v0.4.44
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling matrixmultiply v0.3.8
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking itertools v0.12.1
[INFO] [stderr]     Checking socket2 v0.4.10
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking crossbeam-channel v0.5.11
[INFO] [stderr]     Checking pbr v1.1.1
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]    Compiling openssl-sys v0.9.99
[INFO] [stderr]    Compiling libz-sys v1.1.15
[INFO] [stderr]    Compiling curl-sys v0.4.71+curl-8.6.0
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking mnist v0.6.0
[INFO] [stderr]     Checking dnn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Relu` and `Identity` are never constructed
[INFO] [stdout]  --> src/activations.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Activation {
[INFO] [stdout]   |          ---------- variants in this enum
[INFO] [stdout] 3 |     Sigmoid,
[INFO] [stdout] 4 |     Relu,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     Identity,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Activation` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Relu` and `Identity` are never constructed
[INFO] [stdout]  --> src/activations.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum Activation {
[INFO] [stdout]   |          ---------- variants in this enum
[INFO] [stdout] 3 |     Sigmoid,
[INFO] [stdout] 4 |     Relu,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     Identity,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Activation` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[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 6.48s
[INFO] running `Command { std: "docker" "inspect" "df4672d243512c7c15a39c18de7a1589d1bb9efdbd6f235aaa97be62a67b9df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df4672d243512c7c15a39c18de7a1589d1bb9efdbd6f235aaa97be62a67b9df7", kill_on_drop: false }`
[INFO] [stdout] df4672d243512c7c15a39c18de7a1589d1bb9efdbd6f235aaa97be62a67b9df7