[INFO] cloning repository tylerreisinger/neural-network-deep-learning
[INFO] running `"git" "clone" "--bare" "git://github.com/tylerreisinger/neural-network-deep-learning.git" "work/cache/sources/gh/tylerreisinger/neural-network-deep-learning"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/tylerreisinger/neural-network-deep-learning'...
[INFO] running `"git" "clone" "work/cache/sources/gh/tylerreisinger/neural-network-deep-learning" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/tylerreisinger/neural-network-deep-learning"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/tylerreisinger/neural-network-deep-learning"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tylerreisinger/neural-network-deep-learning on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-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-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing tylerreisinger/neural-network-deep-learning against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] 7a7dac5719ec17482584bf54ddcf690e9a6813f3f8d938110b5c16ceee6cfa53
[INFO] running `"docker" "start" "-a" "7a7dac5719ec17482584bf54ddcf690e9a6813f3f8d938110b5c16ceee6cfa53"`
[INFO] [stderr]    Compiling neural_net v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mnist/error.rs:48:32
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "7a7dac5719ec17482584bf54ddcf690e9a6813f3f8d938110b5c16ceee6cfa53"`
[INFO] running `"docker" "rm" "-f" "7a7dac5719ec17482584bf54ddcf690e9a6813f3f8d938110b5c16ceee6cfa53"`
[INFO] [stdout] 7a7dac5719ec17482584bf54ddcf690e9a6813f3f8d938110b5c16ceee6cfa53
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] 94565cf0e6901039d2df45db651a4df355606f29cd4cd9cb211e07ff8aaefd05
[INFO] running `"docker" "start" "-a" "94565cf0e6901039d2df45db651a4df355606f29cd4cd9cb211e07ff8aaefd05"`
[INFO] [stderr]    Compiling 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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/mnist/error.rs:48:32
[INFO] [stderr]    |
[INFO] [stderr] 48 |     fn cause(&self) -> Option<&Error> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] 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]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "94565cf0e6901039d2df45db651a4df355606f29cd4cd9cb211e07ff8aaefd05"`
[INFO] running `"docker" "rm" "-f" "94565cf0e6901039d2df45db651a4df355606f29cd4cd9cb211e07ff8aaefd05"`
[INFO] [stdout] 94565cf0e6901039d2df45db651a4df355606f29cd4cd9cb211e07ff8aaefd05
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "test" "--frozen"`
[INFO] [stdout] f5976746f07f7b651b61d9de5a19c1721240de42a3c6310013225b1bd408d7c6
[INFO] running `"docker" "start" "-a" "f5976746f07f7b651b61d9de5a19c1721240de42a3c6310013225b1bd408d7c6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/neural_net-c214a6220845439e
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f5976746f07f7b651b61d9de5a19c1721240de42a3c6310013225b1bd408d7c6"`
[INFO] running `"docker" "rm" "-f" "f5976746f07f7b651b61d9de5a19c1721240de42a3c6310013225b1bd408d7c6"`
[INFO] [stdout] f5976746f07f7b651b61d9de5a19c1721240de42a3c6310013225b1bd408d7c6