[INFO] updating cached repository EvilRobotOverlord/mnist-dataset-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/EvilRobotOverlord/mnist-dataset-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/EvilRobotOverlord/mnist-dataset-rust" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/EvilRobotOverlord/mnist-dataset-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/EvilRobotOverlord/mnist-dataset-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/EvilRobotOverlord/mnist-dataset-rust" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/EvilRobotOverlord/mnist-dataset-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/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#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of EvilRobotOverlord/mnist-dataset-rust on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-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-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/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-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking EvilRobotOverlord/mnist-dataset-rust against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-2/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7c37cb9131e2910a9eca8d7c32dbc7de479adb4308b145499246a7c51cbd698a
[INFO] running `"docker" "start" "-a" "7c37cb9131e2910a9eca8d7c32dbc7de479adb4308b145499246a7c51cbd698a"`
[INFO] [stderr]    Compiling ndarray v0.11.2
[INFO] [stderr]     Checking filetime v0.2.1
[INFO] [stderr]     Checking xattr v0.2.1
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]     Checking tar v0.4.15
[INFO] [stderr]     Checking 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/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 11.75s
[INFO] running `"docker" "inspect" "7c37cb9131e2910a9eca8d7c32dbc7de479adb4308b145499246a7c51cbd698a"`
[INFO] running `"docker" "rm" "-f" "7c37cb9131e2910a9eca8d7c32dbc7de479adb4308b145499246a7c51cbd698a"`
[INFO] [stdout] 7c37cb9131e2910a9eca8d7c32dbc7de479adb4308b145499246a7c51cbd698a