[INFO] cloning repository EvilRobotOverlord/mnist-dataset-rust
[INFO] running `"git" "clone" "--bare" "git://github.com/EvilRobotOverlord/mnist-dataset-rust.git" "work/cache/sources/gh/EvilRobotOverlord/mnist-dataset-rust"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/EvilRobotOverlord/mnist-dataset-rust'...
[INFO] running `"git" "clone" "work/cache/sources/gh/EvilRobotOverlord/mnist-dataset-rust" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/EvilRobotOverlord/mnist-dataset-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/EvilRobotOverlord/mnist-dataset-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/EvilRobotOverlord/mnist-dataset-rust" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/EvilRobotOverlord/mnist-dataset-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/EvilRobotOverlord/mnist-dataset-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d7b48065345e32b3a432e72cc77512b86f513d3c
[INFO] sha for GitHub repo EvilRobotOverlord/mnist-dataset-rust: d7b48065345e32b3a432e72cc77512b86f513d3c
[INFO] validating manifest of EvilRobotOverlord/mnist-dataset-rust 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 EvilRobotOverlord/mnist-dataset-rust 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 EvilRobotOverlord/mnist-dataset-rust
[INFO] finished frobbing EvilRobotOverlord/mnist-dataset-rust
[INFO] frobbed toml for EvilRobotOverlord/mnist-dataset-rust written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/EvilRobotOverlord/mnist-dataset-rust/Cargo.toml
[INFO] started frobbing EvilRobotOverlord/mnist-dataset-rust
[INFO] finished frobbing EvilRobotOverlord/mnist-dataset-rust
[INFO] frobbed toml for EvilRobotOverlord/mnist-dataset-rust written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/EvilRobotOverlord/mnist-dataset-rust/Cargo.toml
[INFO] crate EvilRobotOverlord/mnist-dataset-rust 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] building EvilRobotOverlord/mnist-dataset-rust against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/EvilRobotOverlord/mnist-dataset-rust:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] 144fd5c8cce99aa2e716e315a9bc74353ac3249df7bfaa1234cc1494d15e62ba
[INFO] running `"docker" "start" "-a" "144fd5c8cce99aa2e716e315a9bc74353ac3249df7bfaa1234cc1494d15e62ba"`
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]    Compiling matrixmultiply v0.1.14
[INFO] [stderr]    Compiling serde v1.0.67
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling ndarray v0.11.2
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling libc v0.2.41
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling xattr v0.2.1
[INFO] [stderr]    Compiling filetime v0.2.1
[INFO] [stderr]    Compiling tar v0.4.15
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling flate2 v1.0.1
[INFO] [stderr]    Compiling bincode v1.0.1
[INFO] [stderr]    Compiling mnist-dataset-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/exec.rs:6:44
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn exec(one_d: bool) -> Result<(), Box<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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read.rs:26:57
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn images(set: &str, one_d: bool) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read.rs:72:44
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn labels(set: &str) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.89s
[INFO] running `"docker" "inspect" "144fd5c8cce99aa2e716e315a9bc74353ac3249df7bfaa1234cc1494d15e62ba"`
[INFO] running `"docker" "rm" "-f" "144fd5c8cce99aa2e716e315a9bc74353ac3249df7bfaa1234cc1494d15e62ba"`
[INFO] [stdout] 144fd5c8cce99aa2e716e315a9bc74353ac3249df7bfaa1234cc1494d15e62ba
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/EvilRobotOverlord/mnist-dataset-rust:/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] fb6b20c0145dec87bbb43ae8602183b216ca7716f9ae2063bd6c7015e21039fe
[INFO] running `"docker" "start" "-a" "fb6b20c0145dec87bbb43ae8602183b216ca7716f9ae2063bd6c7015e21039fe"`
[INFO] [stderr]    Compiling mnist-dataset-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/exec.rs:6:44
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn exec(one_d: bool) -> Result<(), Box<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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read.rs:26:57
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn images(set: &str, one_d: bool) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/read.rs:72:44
[INFO] [stderr]    |
[INFO] [stderr] 72 | pub fn labels(set: &str) -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:22:41
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn it_loads_run() -> Result<(), Box<Error>> {
[INFO] [stderr]    |                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `"docker" "inspect" "fb6b20c0145dec87bbb43ae8602183b216ca7716f9ae2063bd6c7015e21039fe"`
[INFO] running `"docker" "rm" "-f" "fb6b20c0145dec87bbb43ae8602183b216ca7716f9ae2063bd6c7015e21039fe"`
[INFO] [stdout] fb6b20c0145dec87bbb43ae8602183b216ca7716f9ae2063bd6c7015e21039fe