[INFO] updating cached repository tylerreisinger/neural-network-deep-learning [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/tylerreisinger/neural-network-deep-learning [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/tylerreisinger/neural-network-deep-learning" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/tylerreisinger/neural-network-deep-learning"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/tylerreisinger/neural-network-deep-learning'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/tylerreisinger/neural-network-deep-learning" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/tylerreisinger/neural-network-deep-learning"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/tylerreisinger/neural-network-deep-learning'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e9b993dc16ba212952631e2fa08a1b63ac1c99fb [INFO] sha for GitHub repo tylerreisinger/neural-network-deep-learning: e9b993dc16ba212952631e2fa08a1b63ac1c99fb [INFO] validating manifest of tylerreisinger/neural-network-deep-learning on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of tylerreisinger/neural-network-deep-learning on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing tylerreisinger/neural-network-deep-learning [INFO] finished frobbing tylerreisinger/neural-network-deep-learning [INFO] frobbed toml for tylerreisinger/neural-network-deep-learning written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/tylerreisinger/neural-network-deep-learning/Cargo.toml [INFO] started frobbing tylerreisinger/neural-network-deep-learning [INFO] finished frobbing tylerreisinger/neural-network-deep-learning [INFO] frobbed toml for tylerreisinger/neural-network-deep-learning written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/tylerreisinger/neural-network-deep-learning/Cargo.toml [INFO] crate tylerreisinger/neural-network-deep-learning already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking tylerreisinger/neural-network-deep-learning against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-6/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/tylerreisinger/neural-network-deep-learning:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] f7d790d63c18cc975adf07be6a12ce0c3d19b3b3559e7d5701ee01b821a9371a [INFO] running `"docker" "start" "-a" "f7d790d63c18cc975adf07be6a12ce0c3d19b3b3559e7d5701ee01b821a9371a"` [INFO] [stderr] Checking neural_net v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/mnist/idx.rs:402:9 [INFO] [stderr] | [INFO] [stderr] 402 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `labels` [INFO] [stderr] --> src/main.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | let labels = [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_labels` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `images` [INFO] [stderr] --> src/main.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let images = [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_images` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `labels` [INFO] [stderr] --> src/main.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | let labels = [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_labels` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `images` [INFO] [stderr] --> src/main.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let images = [INFO] [stderr] | ^^^^^^ help: consider prefixing with an underscore: `_images` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.91s [INFO] running `"docker" "inspect" "f7d790d63c18cc975adf07be6a12ce0c3d19b3b3559e7d5701ee01b821a9371a"` [INFO] running `"docker" "rm" "-f" "f7d790d63c18cc975adf07be6a12ce0c3d19b3b3559e7d5701ee01b821a9371a"` [INFO] [stdout] f7d790d63c18cc975adf07be6a12ce0c3d19b3b3559e7d5701ee01b821a9371a