[INFO] fetching crate mnist 0.4.1...
[INFO] testing mnist-0.4.1 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate mnist 0.4.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate mnist 0.4.1 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mnist 0.4.1
[INFO] finished tweaking crates.io crate mnist 0.4.1
[INFO] tweaked toml for crates.io crate mnist 0.4.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate mnist 0.4.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f6ef6cbf2711bcc619c930ed7708e1deb91210303483aa8e8773ee1f994a8862
[INFO] running `Command { std: "docker" "start" "-a" "f6ef6cbf2711bcc619c930ed7708e1deb91210303483aa8e8773ee1f994a8862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6ef6cbf2711bcc619c930ed7708e1deb91210303483aa8e8773ee1f994a8862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6ef6cbf2711bcc619c930ed7708e1deb91210303483aa8e8773ee1f994a8862", kill_on_drop: false }`
[INFO] [stdout] f6ef6cbf2711bcc619c930ed7708e1deb91210303483aa8e8773ee1f994a8862
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da494d1a0e7dd210a16950b29d1c4a1349b1d224c1a3f54eb88755829cc2847e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "da494d1a0e7dd210a16950b29d1c4a1349b1d224c1a3f54eb88755829cc2847e", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling mnist v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:400:13
[INFO] [stdout]     |
[INFO] [stdout] 400 | /             format!(
[INFO] [stdout] 401 | |                 "Total data set length ({}) greater than maximum possible length ({}).",
[INFO] [stdout] 402 | |                 total_length, available_length
[INFO] [stdout] 403 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 400 |             
[INFO] [stdout] 401 |                 "Total data set length ({}) greater than maximum possible length ({}).",
[INFO] [stdout] 402 |                 total_length, available_length
[INFO] [stdout] 403 |             
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:529:9
[INFO] [stdout]     |
[INFO] [stdout] 529 | /         format!(
[INFO] [stdout] 530 | |             "Expected magic number {} got {}.",
[INFO] [stdout] 531 | |             LBL_MAGIC_NUMBER, magic_number
[INFO] [stdout] 532 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 529 |         
[INFO] [stdout] 530 |             "Expected magic number {} got {}.",
[INFO] [stdout] 531 |             LBL_MAGIC_NUMBER, magic_number
[INFO] [stdout] 532 |         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:539:9
[INFO] [stdout]     |
[INFO] [stdout] 539 | /         format!(
[INFO] [stdout] 540 | |             "Expected data set length of {} got {}.",
[INFO] [stdout] 541 | |             expected_length, length
[INFO] [stdout] 542 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 539 |         
[INFO] [stdout] 540 |             "Expected data set length of {} got {}.",
[INFO] [stdout] 541 |             expected_length, length
[INFO] [stdout] 542 |         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:566:9
[INFO] [stdout]     |
[INFO] [stdout] 566 | /         format!(
[INFO] [stdout] 567 | |             "Expected magic number {} got {}.",
[INFO] [stdout] 568 | |             IMG_MAGIC_NUMBER, magic_number
[INFO] [stdout] 569 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 566 |         
[INFO] [stdout] 567 |             "Expected magic number {} got {}.",
[INFO] [stdout] 568 |             IMG_MAGIC_NUMBER, magic_number
[INFO] [stdout] 569 |         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:576:9
[INFO] [stdout]     |
[INFO] [stdout] 576 | /         format!(
[INFO] [stdout] 577 | |             "Expected data set length of {} got {}.",
[INFO] [stdout] 578 | |             expected_length, length
[INFO] [stdout] 579 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 576 |         
[INFO] [stdout] 577 |             "Expected data set length of {} got {}.",
[INFO] [stdout] 578 |             expected_length, length
[INFO] [stdout] 579 |         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:587:9
[INFO] [stdout]     |
[INFO] [stdout] 587 |         format!("Expected rows length of {} got {}.", ROWS, rows)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 587 |         "Expected rows length of {} got {}.", ROWS, rows
[INFO] [stdout]     |        --                                              --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:595:9
[INFO] [stdout]     |
[INFO] [stdout] 595 |         format!("Expected cols length of {} got {}.", COLS, cols)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 595 |         "Expected cols length of {} got {}.", COLS, cols
[INFO] [stdout]     |        --                                              --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/lib.rs:427:9
[INFO] [stdout]     |
[INFO] [stdout] 427 |         tst_img.split_off(tst_len * ROWS * COLS);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/lib.rs:428:9
[INFO] [stdout]     |
[INFO] [stdout] 428 |         tst_lbl.split_off(tst_len);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.50s
[INFO] running `Command { std: "docker" "inspect" "da494d1a0e7dd210a16950b29d1c4a1349b1d224c1a3f54eb88755829cc2847e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da494d1a0e7dd210a16950b29d1c4a1349b1d224c1a3f54eb88755829cc2847e", kill_on_drop: false }`
[INFO] [stdout] da494d1a0e7dd210a16950b29d1c4a1349b1d224c1a3f54eb88755829cc2847e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbbaf3227f6ed577c6aef0cae0584aa195e90e8e10e6430ce9a9f219c7c8e282
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bbbaf3227f6ed577c6aef0cae0584aa195e90e8e10e6430ce9a9f219c7c8e282", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libloading v0.6.2
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:400:13
[INFO] [stdout]     |
[INFO] [stdout] 400 | /             format!(
[INFO] [stdout] 401 | |                 "Total data set length ({}) greater than maximum possible length ({}).",
[INFO] [stdout] 402 | |                 total_length, available_length
[INFO] [stdout] 403 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 400 |             
[INFO] [stdout] 401 |                 "Total data set length ({}) greater than maximum possible length ({}).",
[INFO] [stdout] 402 |                 total_length, available_length
[INFO] [stdout] 403 |             
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:529:9
[INFO] [stdout]     |
[INFO] [stdout] 529 | /         format!(
[INFO] [stdout] 530 | |             "Expected magic number {} got {}.",
[INFO] [stdout] 531 | |             LBL_MAGIC_NUMBER, magic_number
[INFO] [stdout] 532 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 529 |         
[INFO] [stdout] 530 |             "Expected magic number {} got {}.",
[INFO] [stdout] 531 |             LBL_MAGIC_NUMBER, magic_number
[INFO] [stdout] 532 |         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:539:9
[INFO] [stdout]     |
[INFO] [stdout] 539 | /         format!(
[INFO] [stdout] 540 | |             "Expected data set length of {} got {}.",
[INFO] [stdout] 541 | |             expected_length, length
[INFO] [stdout] 542 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 539 |         
[INFO] [stdout] 540 |             "Expected data set length of {} got {}.",
[INFO] [stdout] 541 |             expected_length, length
[INFO] [stdout] 542 |         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:566:9
[INFO] [stdout]     |
[INFO] [stdout] 566 | /         format!(
[INFO] [stdout] 567 | |             "Expected magic number {} got {}.",
[INFO] [stdout] 568 | |             IMG_MAGIC_NUMBER, magic_number
[INFO] [stdout] 569 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 566 |         
[INFO] [stdout] 567 |             "Expected magic number {} got {}.",
[INFO] [stdout] 568 |             IMG_MAGIC_NUMBER, magic_number
[INFO] [stdout] 569 |         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:576:9
[INFO] [stdout]     |
[INFO] [stdout] 576 | /         format!(
[INFO] [stdout] 577 | |             "Expected data set length of {} got {}.",
[INFO] [stdout] 578 | |             expected_length, length
[INFO] [stdout] 579 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 576 |         
[INFO] [stdout] 577 |             "Expected data set length of {} got {}.",
[INFO] [stdout] 578 |             expected_length, length
[INFO] [stdout] 579 |         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:587:9
[INFO] [stdout]     |
[INFO] [stdout] 587 |         format!("Expected rows length of {} got {}.", ROWS, rows)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 587 |         "Expected rows length of {} got {}.", ROWS, rows
[INFO] [stdout]     |        --                                              --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:595:9
[INFO] [stdout]     |
[INFO] [stdout] 595 |         format!("Expected cols length of {} got {}.", COLS, cols)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 595 |         "Expected cols length of {} got {}.", COLS, cols
[INFO] [stdout]     |        --                                              --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/lib.rs:427:9
[INFO] [stdout]     |
[INFO] [stdout] 427 |         tst_img.split_off(tst_len * ROWS * COLS);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/lib.rs:428:9
[INFO] [stdout]     |
[INFO] [stdout] 428 |         tst_lbl.split_off(tst_len);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling xkbcommon-sys v0.7.4
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]    Compiling dlib v0.4.2
[INFO] [stderr]    Compiling wayland-sys v0.25.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling minifb v0.17.0
[INFO] [stderr]    Compiling wayland-scanner v0.25.0
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling xkb v0.2.1
[INFO] [stderr]    Compiling rulinalg v0.4.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling wayland-client v0.25.0
[INFO] [stderr]    Compiling wayland-protocols v0.25.0
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling wayland-commons v0.25.0
[INFO] [stderr]    Compiling wayland-cursor v0.25.0
[INFO] [stderr]    Compiling mnist v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:400:13
[INFO] [stdout]     |
[INFO] [stdout] 400 | /             format!(
[INFO] [stdout] 401 | |                 "Total data set length ({}) greater than maximum possible length ({}).",
[INFO] [stdout] 402 | |                 total_length, available_length
[INFO] [stdout] 403 | |             )
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 400 |             
[INFO] [stdout] 401 |                 "Total data set length ({}) greater than maximum possible length ({}).",
[INFO] [stdout] 402 |                 total_length, available_length
[INFO] [stdout] 403 |             
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:529:9
[INFO] [stdout]     |
[INFO] [stdout] 529 | /         format!(
[INFO] [stdout] 530 | |             "Expected magic number {} got {}.",
[INFO] [stdout] 531 | |             LBL_MAGIC_NUMBER, magic_number
[INFO] [stdout] 532 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 529 |         
[INFO] [stdout] 530 |             "Expected magic number {} got {}.",
[INFO] [stdout] 531 |             LBL_MAGIC_NUMBER, magic_number
[INFO] [stdout] 532 |         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:539:9
[INFO] [stdout]     |
[INFO] [stdout] 539 | /         format!(
[INFO] [stdout] 540 | |             "Expected data set length of {} got {}.",
[INFO] [stdout] 541 | |             expected_length, length
[INFO] [stdout] 542 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 539 |         
[INFO] [stdout] 540 |             "Expected data set length of {} got {}.",
[INFO] [stdout] 541 |             expected_length, length
[INFO] [stdout] 542 |         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:566:9
[INFO] [stdout]     |
[INFO] [stdout] 566 | /         format!(
[INFO] [stdout] 567 | |             "Expected magic number {} got {}.",
[INFO] [stdout] 568 | |             IMG_MAGIC_NUMBER, magic_number
[INFO] [stdout] 569 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 566 |         
[INFO] [stdout] 567 |             "Expected magic number {} got {}.",
[INFO] [stdout] 568 |             IMG_MAGIC_NUMBER, magic_number
[INFO] [stdout] 569 |         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:576:9
[INFO] [stdout]     |
[INFO] [stdout] 576 | /         format!(
[INFO] [stdout] 577 | |             "Expected data set length of {} got {}.",
[INFO] [stdout] 578 | |             expected_length, length
[INFO] [stdout] 579 | |         )
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 576 |         
[INFO] [stdout] 577 |             "Expected data set length of {} got {}.",
[INFO] [stdout] 578 |             expected_length, length
[INFO] [stdout] 579 |         
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:587:9
[INFO] [stdout]     |
[INFO] [stdout] 587 |         format!("Expected rows length of {} got {}.", ROWS, rows)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 587 |         "Expected rows length of {} got {}.", ROWS, rows
[INFO] [stdout]     |        --                                              --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/lib.rs:595:9
[INFO] [stdout]     |
[INFO] [stdout] 595 |         format!("Expected cols length of {} got {}.", COLS, cols)
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 595 |         "Expected cols length of {} got {}.", COLS, cols
[INFO] [stdout]     |        --                                              --
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/lib.rs:427:9
[INFO] [stdout]     |
[INFO] [stdout] 427 |         tst_img.split_off(tst_len * ROWS * COLS);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/lib.rs:428:9
[INFO] [stdout]     |
[INFO] [stdout] 428 |         tst_lbl.split_off(tst_len);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 21s
[INFO] running `Command { std: "docker" "inspect" "bbbaf3227f6ed577c6aef0cae0584aa195e90e8e10e6430ce9a9f219c7c8e282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbbaf3227f6ed577c6aef0cae0584aa195e90e8e10e6430ce9a9f219c7c8e282", kill_on_drop: false }`
[INFO] [stdout] bbbaf3227f6ed577c6aef0cae0584aa195e90e8e10e6430ce9a9f219c7c8e282
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a99106647d9c7cc9ccdd656fcb99ec769179d56ee6010ae1542dc81894772783
[INFO] running `Command { std: "docker" "start" "-a" "a99106647d9c7cc9ccdd656fcb99ec769179d56ee6010ae1542dc81894772783", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:400:13
[INFO] [stderr]     |
[INFO] [stderr] 400 | /             format!(
[INFO] [stderr] 401 | |                 "Total data set length ({}) greater than maximum possible length ({}).",
[INFO] [stderr] 402 | |                 total_length, available_length
[INFO] [stderr] 403 | |             )
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 400 |             
[INFO] [stderr] 401 |                 "Total data set length ({}) greater than maximum possible length ({}).",
[INFO] [stderr] 402 |                 total_length, available_length
[INFO] [stderr] 403 |             
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:529:9
[INFO] [stderr]     |
[INFO] [stderr] 529 | /         format!(
[INFO] [stderr] 530 | |             "Expected magic number {} got {}.",
[INFO] [stderr] 531 | |             LBL_MAGIC_NUMBER, magic_number
[INFO] [stderr] 532 | |         )
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 529 |         
[INFO] [stderr] 530 |             "Expected magic number {} got {}.",
[INFO] [stderr] 531 |             LBL_MAGIC_NUMBER, magic_number
[INFO] [stderr] 532 |         
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:539:9
[INFO] [stderr]     |
[INFO] [stderr] 539 | /         format!(
[INFO] [stderr] 540 | |             "Expected data set length of {} got {}.",
[INFO] [stderr] 541 | |             expected_length, length
[INFO] [stderr] 542 | |         )
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 539 |         
[INFO] [stderr] 540 |             "Expected data set length of {} got {}.",
[INFO] [stderr] 541 |             expected_length, length
[INFO] [stderr] 542 |         
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:566:9
[INFO] [stderr]     |
[INFO] [stderr] 566 | /         format!(
[INFO] [stderr] 567 | |             "Expected magic number {} got {}.",
[INFO] [stderr] 568 | |             IMG_MAGIC_NUMBER, magic_number
[INFO] [stderr] 569 | |         )
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 566 |         
[INFO] [stderr] 567 |             "Expected magic number {} got {}.",
[INFO] [stderr] 568 |             IMG_MAGIC_NUMBER, magic_number
[INFO] [stderr] 569 |         
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:576:9
[INFO] [stderr]     |
[INFO] [stderr] 576 | /         format!(
[INFO] [stderr] 577 | |             "Expected data set length of {} got {}.",
[INFO] [stderr] 578 | |             expected_length, length
[INFO] [stderr] 579 | |         )
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 576 |         
[INFO] [stderr] 577 |             "Expected data set length of {} got {}.",
[INFO] [stderr] 578 |             expected_length, length
[INFO] [stderr] 579 |         
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:587:9
[INFO] [stderr]     |
[INFO] [stderr] 587 |         format!("Expected rows length of {} got {}.", ROWS, rows)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 587 |         "Expected rows length of {} got {}.", ROWS, rows
[INFO] [stderr]     |        --                                              --
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:595:9
[INFO] [stderr]     |
[INFO] [stderr] 595 |         format!("Expected cols length of {} got {}.", COLS, cols)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 595 |         "Expected cols length of {} got {}.", COLS, cols
[INFO] [stderr]     |        --                                              --
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stderr]    --> src/lib.rs:427:9
[INFO] [stderr]     |
[INFO] [stderr] 427 |         tst_img.split_off(tst_len * ROWS * COLS);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: use `.truncate()` if you don't need the other half
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stderr]    --> src/lib.rs:428:9
[INFO] [stderr]     |
[INFO] [stderr] 428 |         tst_lbl.split_off(tst_len);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `.truncate()` if you don't need the other half
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:400:13
[INFO] [stderr]     |
[INFO] [stderr] 400 | /             format!(
[INFO] [stderr] 401 | |                 "Total data set length ({}) greater than maximum possible length ({}).",
[INFO] [stderr] 402 | |                 total_length, available_length
[INFO] [stderr] 403 | |             )
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 400 |             
[INFO] [stderr] 401 |                 "Total data set length ({}) greater than maximum possible length ({}).",
[INFO] [stderr] 402 |                 total_length, available_length
[INFO] [stderr] 403 |             
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:529:9
[INFO] [stderr]     |
[INFO] [stderr] 529 | /         format!(
[INFO] [stderr] 530 | |             "Expected magic number {} got {}.",
[INFO] [stderr] 531 | |             LBL_MAGIC_NUMBER, magic_number
[INFO] [stderr] 532 | |         )
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 529 |         
[INFO] [stderr] 530 |             "Expected magic number {} got {}.",
[INFO] [stderr] 531 |             LBL_MAGIC_NUMBER, magic_number
[INFO] [stderr] 532 |         
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:539:9
[INFO] [stderr]     |
[INFO] [stderr] 539 | /         format!(
[INFO] [stderr] 540 | |             "Expected data set length of {} got {}.",
[INFO] [stderr] 541 | |             expected_length, length
[INFO] [stderr] 542 | |         )
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 539 |         
[INFO] [stderr] 540 |             "Expected data set length of {} got {}.",
[INFO] [stderr] 541 |             expected_length, length
[INFO] [stderr] 542 |         
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:566:9
[INFO] [stderr]     |
[INFO] [stderr] 566 | /         format!(
[INFO] [stderr] 567 | |             "Expected magic number {} got {}.",
[INFO] [stderr] 568 | |             IMG_MAGIC_NUMBER, magic_number
[INFO] [stderr] 569 | |         )
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 566 |         
[INFO] [stderr] 567 |             "Expected magic number {} got {}.",
[INFO] [stderr] 568 |             IMG_MAGIC_NUMBER, magic_number
[INFO] [stderr] 569 |         
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:576:9
[INFO] [stderr]     |
[INFO] [stderr] 576 | /         format!(
[INFO] [stderr] 577 | |             "Expected data set length of {} got {}.",
[INFO] [stderr] 578 | |             expected_length, length
[INFO] [stderr] 579 | |         )
[INFO] [stderr]     | |_________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 576 |         
[INFO] [stderr] 577 |             "Expected data set length of {} got {}.",
[INFO] [stderr] 578 |             expected_length, length
[INFO] [stderr] 579 |         
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:587:9
[INFO] [stderr]     |
[INFO] [stderr] 587 |         format!("Expected rows length of {} got {}.", ROWS, rows)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 587 |         "Expected rows length of {} got {}.", ROWS, rows
[INFO] [stderr]     |        --                                              --
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/lib.rs:595:9
[INFO] [stderr]     |
[INFO] [stderr] 595 |         format!("Expected cols length of {} got {}.", COLS, cols)
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr]     = note: the assert!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stderr] help: remove the `format!(..)` macro call
[INFO] [stderr]     |
[INFO] [stderr] 595 |         "Expected cols length of {} got {}.", COLS, cols
[INFO] [stderr]     |        --                                              --
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stderr]    --> src/lib.rs:427:9
[INFO] [stderr]     |
[INFO] [stderr] 427 |         tst_img.split_off(tst_len * ROWS * COLS);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: use `.truncate()` if you don't need the other half
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stderr]    --> src/lib.rs:428:9
[INFO] [stderr]     |
[INFO] [stderr] 428 |         tst_lbl.split_off(tst_len);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `.truncate()` if you don't need the other half
[INFO] [stderr] 
[INFO] [stderr] warning: 9 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mnist-4c8c9de8e92bac16)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test tests::normalize_vector ... ok
[INFO] [stdout] test tests::test_02 ... ok
[INFO] [stdout] test tests::test_03 ... ok
[INFO] [stdout] test tests::test_04 ... ok
[INFO] [stdout] test tests::test_01 ... FAILED
[INFO] [stdout] test tests::test_10 ... FAILED
[INFO] [stdout] test tests::test_11 ... FAILED
[INFO] [stdout] test tests::test_05 ... ok
[INFO] [stdout] test tests::test_example ... FAILED
[INFO] [stdout] test tests::test_07 ... ok
[INFO] [stdout] test tests::test_08 ... ok
[INFO] [stdout] test tests::test_12 ... FAILED
[INFO] [stdout] test tests::test_06 ... FAILED
[INFO] [stdout] test tests::test_09 ... ok
[INFO] [stdout] test tests::test_00 ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_01 stdout ----
[INFO] [stdout] thread 'tests::test_01' panicked at 'Unable to find path to images at "data/train-images-idx3-ubyte".', src/lib.rs:552:33
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5614318f2960 - std::backtrace_rs::backtrace::libunwind::trace::h1037ca7e6eeef65c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5614318f2960 - std::backtrace_rs::backtrace::trace_unsynchronized::haaefac1bc3669450
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5614318f2960 - std::sys_common::backtrace::_print_fmt::h863a6f5e6d995885
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5614318f2960 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h767e17e1aa7df6a8
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x56143191598c - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x5614318ef855 - std::io::Write::write_fmt::h6f1a9b91376a1376
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x5614318f4acb - std::sys_common::backtrace::_print::h2769edb26a7eb606
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5614318f4acb - std::sys_common::backtrace::print::ha71f3549862b4cb6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5614318f4acb - std::panicking::default_hook::{{closure}}::h95488a3bade217f6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5614318f45dc - std::panicking::default_hook::h290aa602c0fb11df
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5614318f5171 - std::panicking::rust_panic_with_hook::hf32c4fa635e215f2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5614318f4c77 - std::panicking::begin_panic_handler::{{closure}}::h95197ccd88846f7a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5614318f2e3c - std::sys_common::backtrace::__rust_end_short_backtrace::h7641df9566f7b7d0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5614318f4bd9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x561431883d8b - std::panicking::begin_panic_fmt::hdc39c0cc0031e534
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:457:5
[INFO] [stdout]   15:     0x5614318947bc - mnist::images::{{closure}}::hb4f36b4a83377662
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:552:33
[INFO] [stdout]   16:     0x561431890077 - core::result::Result<T,E>::unwrap_or_else::h9834dbe8e1a12b91
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:821:23
[INFO] [stdout]   17:     0x561431893e6f - mnist::images::hf4baea42838e190b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:551:22
[INFO] [stdout]   18:     0x561431892a54 - mnist::MnistBuilder::finalize::h34277cdc3639294d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:405:27
[INFO] [stdout]   19:     0x5614318991ca - mnist::tests::test_01::h040e5a6868c8e4de
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:59:17
[INFO] [stdout]   20:     0x56143189913a - mnist::tests::test_01::{{closure}}::h47abc65532623383
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:58:1
[INFO] [stdout]   21:     0x56143189b9ee - core::ops::function::FnOnce::call_once::ha19ddffa7f8c1c31
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x5614318c3233 - core::ops::function::FnOnce::call_once::h673fbe3f96486fd2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x5614318c3233 - test::__rust_begin_short_backtrace::h8eedc24e104ef6a0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:577:5
[INFO] [stdout]   24:     0x5614318c1ce0 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h028d0969d3f94d78
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   25:     0x5614318c1ce0 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7634b01590b1722b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   26:     0x5614318c1ce0 - std::panicking::try::do_call::hf74f869706dec63b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x5614318c1ce0 - std::panicking::try::hd0b7346ebfaaae44
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x5614318c1ce0 - std::panic::catch_unwind::hdbf6904f7c253080
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   29:     0x5614318c1ce0 - test::run_test_in_process::h87e95a014ac91067
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:600:18
[INFO] [stdout]   30:     0x5614318c1ce0 - test::run_test::run_test_inner::{{closure}}::hdd69ae44aaab3470
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:492:39
[INFO] [stdout]   31:     0x56143189cfb2 - test::run_test::run_test_inner::{{closure}}::hc159305704d5b68a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:519:37
[INFO] [stdout]   32:     0x56143189cfb2 - std::sys_common::backtrace::__rust_begin_short_backtrace::h33d8a8ad5f788fcc
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h6181011ddf4b8353
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   34:     0x5614318a0d28 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf924ea0a0f25a1c0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   35:     0x5614318a0d28 - std::panicking::try::do_call::hd58061792d05fa5c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x5614318a0d28 - std::panicking::try::h3080747417e5af37
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x5614318a0d28 - std::panic::catch_unwind::hfeba515dcf36cb66
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   38:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::h29d57a62faff749b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   39:     0x5614318a0d28 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h44709d312d2a9c59
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h902e2cf6655e1b0c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h893a5452154309d1
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   42:     0x5614318f9c27 - std::sys::unix::thread::Thread::new::thread_start::hdedcb57c96ab37cd
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   43:     0x7fa5d71cb609 - start_thread
[INFO] [stdout]   44:     0x7fa5d6f9d293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_10 stdout ----
[INFO] [stdout] thread 'tests::test_10' panicked at 'Unable to find path to images at "data/train-images-idx3-ubyte".', src/lib.rs:552:33
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5614318f2960 - std::backtrace_rs::backtrace::libunwind::trace::h1037ca7e6eeef65c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5614318f2960 - std::backtrace_rs::backtrace::trace_unsynchronized::haaefac1bc3669450
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5614318f2960 - std::sys_common::backtrace::_print_fmt::h863a6f5e6d995885
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5614318f2960 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h767e17e1aa7df6a8
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x56143191598c - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x5614318ef855 - std::io::Write::write_fmt::h6f1a9b91376a1376
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x5614318f4acb - std::sys_common::backtrace::_print::h2769edb26a7eb606
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5614318f4acb - std::sys_common::backtrace::print::ha71f3549862b4cb6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5614318f4acb - std::panicking::default_hook::{{closure}}::h95488a3bade217f6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5614318f45dc - std::panicking::default_hook::h290aa602c0fb11df
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5614318f5171 - std::panicking::rust_panic_with_hook::hf32c4fa635e215f2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5614318f4c77 - std::panicking::begin_panic_handler::{{closure}}::h95197ccd88846f7a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5614318f2e3c - std::sys_common::backtrace::__rust_end_short_backtrace::h7641df9566f7b7d0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5614318f4bd9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x561431883d8b - std::panicking::begin_panic_fmt::hdc39c0cc0031e534
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:457:5
[INFO] [stdout]   15:     0x5614318947bc - mnist::images::{{closure}}::hb4f36b4a83377662
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:552:33
[INFO] [stdout]   16:     0x561431890077 - core::result::Result<T,E>::unwrap_or_else::h9834dbe8e1a12b91
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:821:23
[INFO] [stdout]   17:     0x561431893e6f - mnist::images::hf4baea42838e190b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:551:22
[INFO] [stdout]   18:     0x561431892a54 - mnist::MnistBuilder::finalize::h34277cdc3639294d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:405:27
[INFO] [stdout]   19:     0x561431899e3f - mnist::tests::test_10::h857c2b20cbc5d04c
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:181:13
[INFO] [stdout]   20:     0x561431899dea - mnist::tests::test_10::{{closure}}::h59e512e908b96719
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:180:1
[INFO] [stdout]   21:     0x56143189ba2e - core::ops::function::FnOnce::call_once::hbb472444a4563b32
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x5614318c3233 - core::ops::function::FnOnce::call_once::h673fbe3f96486fd2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x5614318c3233 - test::__rust_begin_short_backtrace::h8eedc24e104ef6a0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:577:5
[INFO] [stdout]   24:     0x5614318c1ce0 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h028d0969d3f94d78
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   25:     0x5614318c1ce0 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7634b01590b1722b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   26:     0x5614318c1ce0 - std::panicking::try::do_call::hf74f869706dec63b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x5614318c1ce0 - std::panicking::try::hd0b7346ebfaaae44
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x5614318c1ce0 - std::panic::catch_unwind::hdbf6904f7c253080
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   29:     0x5614318c1ce0 - test::run_test_in_process::h87e95a014ac91067
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:600:18
[INFO] [stdout]   30:     0x5614318c1ce0 - test::run_test::run_test_inner::{{closure}}::hdd69ae44aaab3470
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:492:39
[INFO] [stdout]   31:     0x56143189cfb2 - test::run_test::run_test_inner::{{closure}}::hc159305704d5b68a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:519:37
[INFO] [stdout]   32:     0x56143189cfb2 - std::sys_common::backtrace::__rust_begin_short_backtrace::h33d8a8ad5f788fcc
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h6181011ddf4b8353
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   34:     0x5614318a0d28 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf924ea0a0f25a1c0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   35:     0x5614318a0d28 - std::panicking::try::do_call::hd58061792d05fa5c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x5614318a0d28 - std::panicking::try::h3080747417e5af37
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x5614318a0d28 - std::panic::catch_unwind::hfeba515dcf36cb66
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   38:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::h29d57a62faff749b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   39:     0x5614318a0d28 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h44709d312d2a9c59
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h902e2cf6655e1b0c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h893a5452154309d1
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   42:     0x5614318f9c27 - std::sys::unix::thread::Thread::new::thread_start::hdedcb57c96ab37cd
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   43:     0x7fa5d71cb609 - start_thread
[INFO] [stdout]   44:     0x7fa5d6f9d293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] note: panic did not contain expected string
[INFO] [stdout]       panic message: `"Unable to find path to images at \"data/train-images-idx3-ubyte\"."`,
[INFO] [stdout]  expected substring: `"Unable to find path to labels at \"data/test\"."`
[INFO] [stdout] ---- tests::test_11 stdout ----
[INFO] [stdout] thread 'tests::test_11' panicked at 'Unable to find path to images at "data/train-images-idx3-ubyte".', src/lib.rs:552:33
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5614318f2960 - std::backtrace_rs::backtrace::libunwind::trace::h1037ca7e6eeef65c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5614318f2960 - std::backtrace_rs::backtrace::trace_unsynchronized::haaefac1bc3669450
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5614318f2960 - std::sys_common::backtrace::_print_fmt::h863a6f5e6d995885
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5614318f2960 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h767e17e1aa7df6a8
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x56143191598c - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x5614318ef855 - std::io::Write::write_fmt::h6f1a9b91376a1376
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x5614318f4acb - std::sys_common::backtrace::_print::h2769edb26a7eb606
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5614318f4acb - std::sys_common::backtrace::print::ha71f3549862b4cb6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5614318f4acb - std::panicking::default_hook::{{closure}}::h95488a3bade217f6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5614318f45dc - std::panicking::default_hook::h290aa602c0fb11df
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5614318f5171 - std::panicking::rust_panic_with_hook::hf32c4fa635e215f2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5614318f4c77 - std::panicking::begin_panic_handler::{{closure}}::h95197ccd88846f7a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5614318f2e3c - std::sys_common::backtrace::__rust_end_short_backtrace::h7641df9566f7b7d0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5614318f4bd9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x561431883d8b - std::panicking::begin_panic_fmt::hdc39c0cc0031e534
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:457:5
[INFO] [stdout]   15:     0x5614318947bc - mnist::images::{{closure}}::hb4f36b4a83377662
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:552:33
[INFO] [stdout]   16:     0x561431890077 - core::result::Result<T,E>::unwrap_or_else::h9834dbe8e1a12b91
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:821:23
[INFO] [stdout]   17:     0x561431893e6f - mnist::images::hf4baea42838e190b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:551:22
[INFO] [stdout]   18:     0x561431892a54 - mnist::MnistBuilder::finalize::h34277cdc3639294d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:405:27
[INFO] [stdout]   19:     0x561431899ebf - mnist::tests::test_11::ha12f163d37152380
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:189:13
[INFO] [stdout]   20:     0x561431899e6a - mnist::tests::test_11::{{closure}}::h13163f5129b4dde0
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:188:1
[INFO] [stdout]   21:     0x56143189b9ae - core::ops::function::FnOnce::call_once::h9ef6ecb269a4dac2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x5614318c3233 - core::ops::function::FnOnce::call_once::h673fbe3f96486fd2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x5614318c3233 - test::__rust_begin_short_backtrace::h8eedc24e104ef6a0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:577:5
[INFO] [stdout]   24:     0x5614318c1ce0 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h028d0969d3f94d78
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   25:     0x5614318c1ce0 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7634b01590b1722b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   26:     0x5614318c1ce0 - std::panicking::try::do_call::hf74f869706dec63b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x5614318c1ce0 - std::panicking::try::hd0b7346ebfaaae44
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x5614318c1ce0 - std::panic::catch_unwind::hdbf6904f7c253080
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   29:     0x5614318c1ce0 - test::run_test_in_process::h87e95a014ac91067
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:600:18
[INFO] [stdout]   30:     0x5614318c1ce0 - test::run_test::run_test_inner::{{closure}}::hdd69ae44aaab3470
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:492:39
[INFO] [stdout]   31:     0x56143189cfb2 - test::run_test::run_test_inner::{{closure}}::hc159305704d5b68a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:519:37
[INFO] [stdout]   32:     0x56143189cfb2 - std::sys_common::backtrace::__rust_begin_short_backtrace::h33d8a8ad5f788fcc
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h6181011ddf4b8353
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   34:     0x5614318a0d28 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf924ea0a0f25a1c0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   35:     0x5614318a0d28 - std::panicking::try::do_call::hd58061792d05fa5c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x5614318a0d28 - std::panicking::try::h3080747417e5af37
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x5614318a0d28 - std::panic::catch_unwind::hfeba515dcf36cb66
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   38:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::h29d57a62faff749b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   39:     0x5614318a0d28 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h44709d312d2a9c59
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h902e2cf6655e1b0c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h893a5452154309d1
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   42:     0x5614318f9c27 - std::sys::unix::thread::Thread::new::thread_start::hdedcb57c96ab37cd
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   43:     0x7fa5d71cb609 - start_thread
[INFO] [stdout]   44:     0x7fa5d6f9d293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] note: panic did not contain expected string
[INFO] [stdout]       panic message: `"Unable to find path to images at \"data/train-images-idx3-ubyte\"."`,
[INFO] [stdout]  expected substring: `"Unable to find path to images at \"data/test\"."`
[INFO] [stdout] ---- tests::test_example stdout ----
[INFO] [stdout] thread 'tests::test_example' panicked at 'Unable to find path to images at "data/train-images-idx3-ubyte".', src/lib.rs:552:33
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5614318f2960 - std::backtrace_rs::backtrace::libunwind::trace::h1037ca7e6eeef65c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5614318f2960 - std::backtrace_rs::backtrace::trace_unsynchronized::haaefac1bc3669450
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5614318f2960 - std::sys_common::backtrace::_print_fmt::h863a6f5e6d995885
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5614318f2960 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h767e17e1aa7df6a8
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x56143191598c - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x5614318ef855 - std::io::Write::write_fmt::h6f1a9b91376a1376
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x5614318f4acb - std::sys_common::backtrace::_print::h2769edb26a7eb606
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5614318f4acb - std::sys_common::backtrace::print::ha71f3549862b4cb6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5614318f4acb - std::panicking::default_hook::{{closure}}::h95488a3bade217f6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5614318f45dc - std::panicking::default_hook::h290aa602c0fb11df
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5614318f5171 - std::panicking::rust_panic_with_hook::hf32c4fa635e215f2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5614318f4c77 - std::panicking::begin_panic_handler::{{closure}}::h95197ccd88846f7a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5614318f2e3c - std::sys_common::backtrace::__rust_end_short_backtrace::h7641df9566f7b7d0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5614318f4bd9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x561431883d8b - std::panicking::begin_panic_fmt::hdc39c0cc0031e534
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:457:5
[INFO] [stdout]   15:     0x5614318947bc - mnist::images::{{closure}}::hb4f36b4a83377662
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:552:33
[INFO] [stdout]   16:     0x561431890077 - core::result::Result<T,E>::unwrap_or_else::h9834dbe8e1a12b91
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:821:23
[INFO] [stdout]   17:     0x561431893e6f - mnist::images::hf4baea42838e190b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:551:22
[INFO] [stdout]   18:     0x561431892a54 - mnist::MnistBuilder::finalize::h34277cdc3639294d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:405:27
[INFO] [stdout]   19:     0x5614318987a5 - mnist::tests::test_example::hd58bb42d3fe4e2ff
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:15:9
[INFO] [stdout]   20:     0x5614318986ea - mnist::tests::test_example::{{closure}}::h92bd6bfafd763b95
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:9:1
[INFO] [stdout]   21:     0x56143189b89e - core::ops::function::FnOnce::call_once::h3f0a5a5744424523
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x5614318c3233 - core::ops::function::FnOnce::call_once::h673fbe3f96486fd2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x5614318c3233 - test::__rust_begin_short_backtrace::h8eedc24e104ef6a0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:577:5
[INFO] [stdout]   24:     0x5614318c1ce0 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h028d0969d3f94d78
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   25:     0x5614318c1ce0 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7634b01590b1722b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   26:     0x5614318c1ce0 - std::panicking::try::do_call::hf74f869706dec63b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x5614318c1ce0 - std::panicking::try::hd0b7346ebfaaae44
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x5614318c1ce0 - std::panic::catch_unwind::hdbf6904f7c253080
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   29:     0x5614318c1ce0 - test::run_test_in_process::h87e95a014ac91067
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:600:18
[INFO] [stdout]   30:     0x5614318c1ce0 - test::run_test::run_test_inner::{{closure}}::hdd69ae44aaab3470
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:492:39
[INFO] [stdout]   31:     0x56143189cfb2 - test::run_test::run_test_inner::{{closure}}::hc159305704d5b68a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:519:37
[INFO] [stdout]   32:     0x56143189cfb2 - std::sys_common::backtrace::__rust_begin_short_backtrace::h33d8a8ad5f788fcc
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h6181011ddf4b8353
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   34:     0x5614318a0d28 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf924ea0a0f25a1c0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   35:     0x5614318a0d28 - std::panicking::try::do_call::hd58061792d05fa5c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x5614318a0d28 - std::panicking::try::h3080747417e5af37
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x5614318a0d28 - std::panic::catch_unwind::hfeba515dcf36cb66
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   38:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::h29d57a62faff749b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   39:     0x5614318a0d28 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h44709d312d2a9c59
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h902e2cf6655e1b0c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h893a5452154309d1
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   42:     0x5614318f9c27 - std::sys::unix::thread::Thread::new::thread_start::hdedcb57c96ab37cd
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   43:     0x7fa5d71cb609 - start_thread
[INFO] [stdout]   44:     0x7fa5d6f9d293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_12 stdout ----
[INFO] [stdout] thread 'tests::test_12' panicked at 'Unable to find path to images at "data/train-images-idx3-ubyte".', src/lib.rs:552:33
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5614318f2960 - std::backtrace_rs::backtrace::libunwind::trace::h1037ca7e6eeef65c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5614318f2960 - std::backtrace_rs::backtrace::trace_unsynchronized::haaefac1bc3669450
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5614318f2960 - std::sys_common::backtrace::_print_fmt::h863a6f5e6d995885
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5614318f2960 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h767e17e1aa7df6a8
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x56143191598c - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x5614318ef855 - std::io::Write::write_fmt::h6f1a9b91376a1376
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x5614318f4acb - std::sys_common::backtrace::_print::h2769edb26a7eb606
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5614318f4acb - std::sys_common::backtrace::print::ha71f3549862b4cb6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5614318f4acb - std::panicking::default_hook::{{closure}}::h95488a3bade217f6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5614318f45dc - std::panicking::default_hook::h290aa602c0fb11df
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5614318f5171 - std::panicking::rust_panic_with_hook::hf32c4fa635e215f2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5614318f4c77 - std::panicking::begin_panic_handler::{{closure}}::h95197ccd88846f7a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5614318f2e3c - std::sys_common::backtrace::__rust_end_short_backtrace::h7641df9566f7b7d0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5614318f4bd9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x561431883d8b - std::panicking::begin_panic_fmt::hdc39c0cc0031e534
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:457:5
[INFO] [stdout]   15:     0x5614318947bc - mnist::images::{{closure}}::hb4f36b4a83377662
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:552:33
[INFO] [stdout]   16:     0x561431890077 - core::result::Result<T,E>::unwrap_or_else::h9834dbe8e1a12b91
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:821:23
[INFO] [stdout]   17:     0x561431893e6f - mnist::images::hf4baea42838e190b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:551:22
[INFO] [stdout]   18:     0x561431892a54 - mnist::MnistBuilder::finalize::h34277cdc3639294d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:405:27
[INFO] [stdout]   19:     0x561431899f3f - mnist::tests::test_12::h0a61b9d85b33b328
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:195:13
[INFO] [stdout]   20:     0x561431899eea - mnist::tests::test_12::{{closure}}::hc1ef30aa73e6e721
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:194:1
[INFO] [stdout]   21:     0x56143189b78e - core::ops::function::FnOnce::call_once::h27cabc660b0ec921
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x5614318c3233 - core::ops::function::FnOnce::call_once::h673fbe3f96486fd2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x5614318c3233 - test::__rust_begin_short_backtrace::h8eedc24e104ef6a0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:577:5
[INFO] [stdout]   24:     0x5614318c1ce0 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h028d0969d3f94d78
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   25:     0x5614318c1ce0 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7634b01590b1722b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   26:     0x5614318c1ce0 - std::panicking::try::do_call::hf74f869706dec63b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x5614318c1ce0 - std::panicking::try::hd0b7346ebfaaae44
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x5614318c1ce0 - std::panic::catch_unwind::hdbf6904f7c253080
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   29:     0x5614318c1ce0 - test::run_test_in_process::h87e95a014ac91067
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:600:18
[INFO] [stdout]   30:     0x5614318c1ce0 - test::run_test::run_test_inner::{{closure}}::hdd69ae44aaab3470
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:492:39
[INFO] [stdout]   31:     0x56143189cfb2 - test::run_test::run_test_inner::{{closure}}::hc159305704d5b68a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:519:37
[INFO] [stdout]   32:     0x56143189cfb2 - std::sys_common::backtrace::__rust_begin_short_backtrace::h33d8a8ad5f788fcc
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h6181011ddf4b8353
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   34:     0x5614318a0d28 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf924ea0a0f25a1c0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   35:     0x5614318a0d28 - std::panicking::try::do_call::hd58061792d05fa5c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x5614318a0d28 - std::panicking::try::h3080747417e5af37
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x5614318a0d28 - std::panic::catch_unwind::hfeba515dcf36cb66
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   38:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::h29d57a62faff749b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   39:     0x5614318a0d28 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h44709d312d2a9c59
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h902e2cf6655e1b0c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h893a5452154309d1
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   42:     0x5614318f9c27 - std::sys::unix::thread::Thread::new::thread_start::hdedcb57c96ab37cd
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   43:     0x7fa5d71cb609 - start_thread
[INFO] [stdout]   44:     0x7fa5d6f9d293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] note: panic did not contain expected string
[INFO] [stdout]       panic message: `"Unable to find path to images at \"data/train-images-idx3-ubyte\"."`,
[INFO] [stdout]  expected substring: `"Unable to find path to labels at \"data/test\"."`
[INFO] [stdout] ---- tests::test_06 stdout ----
[INFO] [stdout] thread 'tests::test_06' panicked at 'Unable to find path to images at "data_sets/mnist/training_images".', src/lib.rs:552:33
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5614318f2960 - std::backtrace_rs::backtrace::libunwind::trace::h1037ca7e6eeef65c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5614318f2960 - std::backtrace_rs::backtrace::trace_unsynchronized::haaefac1bc3669450
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5614318f2960 - std::sys_common::backtrace::_print_fmt::h863a6f5e6d995885
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5614318f2960 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h767e17e1aa7df6a8
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x56143191598c - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x5614318ef855 - std::io::Write::write_fmt::h6f1a9b91376a1376
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x5614318f4acb - std::sys_common::backtrace::_print::h2769edb26a7eb606
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5614318f4acb - std::sys_common::backtrace::print::ha71f3549862b4cb6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5614318f4acb - std::panicking::default_hook::{{closure}}::h95488a3bade217f6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5614318f45dc - std::panicking::default_hook::h290aa602c0fb11df
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5614318f5171 - std::panicking::rust_panic_with_hook::hf32c4fa635e215f2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5614318f4c77 - std::panicking::begin_panic_handler::{{closure}}::h95197ccd88846f7a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5614318f2e3c - std::sys_common::backtrace::__rust_end_short_backtrace::h7641df9566f7b7d0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5614318f4bd9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x561431883d8b - std::panicking::begin_panic_fmt::hdc39c0cc0031e534
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:457:5
[INFO] [stdout]   15:     0x5614318947bc - mnist::images::{{closure}}::hb4f36b4a83377662
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:552:33
[INFO] [stdout]   16:     0x561431890077 - core::result::Result<T,E>::unwrap_or_else::h9834dbe8e1a12b91
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:821:23
[INFO] [stdout]   17:     0x561431893e6f - mnist::images::hf4baea42838e190b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:551:22
[INFO] [stdout]   18:     0x561431892a54 - mnist::MnistBuilder::finalize::h34277cdc3639294d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:405:27
[INFO] [stdout]   19:     0x561431899981 - mnist::tests::test_06::h823221ce43245294
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:129:17
[INFO] [stdout]   20:     0x56143189986a - mnist::tests::test_06::{{closure}}::hb3138687c2131902
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:128:1
[INFO] [stdout]   21:     0x56143189b74e - core::ops::function::FnOnce::call_once::h240ea79c03a937f5
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x5614318c3233 - core::ops::function::FnOnce::call_once::h673fbe3f96486fd2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x5614318c3233 - test::__rust_begin_short_backtrace::h8eedc24e104ef6a0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:577:5
[INFO] [stdout]   24:     0x5614318c1ce0 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h028d0969d3f94d78
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   25:     0x5614318c1ce0 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7634b01590b1722b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   26:     0x5614318c1ce0 - std::panicking::try::do_call::hf74f869706dec63b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x5614318c1ce0 - std::panicking::try::hd0b7346ebfaaae44
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x5614318c1ce0 - std::panic::catch_unwind::hdbf6904f7c253080
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   29:     0x5614318c1ce0 - test::run_test_in_process::h87e95a014ac91067
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:600:18
[INFO] [stdout]   30:     0x5614318c1ce0 - test::run_test::run_test_inner::{{closure}}::hdd69ae44aaab3470
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:492:39
[INFO] [stdout]   31:     0x56143189cfb2 - test::run_test::run_test_inner::{{closure}}::hc159305704d5b68a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:519:37
[INFO] [stdout]   32:     0x56143189cfb2 - std::sys_common::backtrace::__rust_begin_short_backtrace::h33d8a8ad5f788fcc
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h6181011ddf4b8353
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   34:     0x5614318a0d28 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf924ea0a0f25a1c0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   35:     0x5614318a0d28 - std::panicking::try::do_call::hd58061792d05fa5c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x5614318a0d28 - std::panicking::try::h3080747417e5af37
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x5614318a0d28 - std::panic::catch_unwind::hfeba515dcf36cb66
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   38:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::h29d57a62faff749b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   39:     0x5614318a0d28 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h44709d312d2a9c59
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h902e2cf6655e1b0c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h893a5452154309d1
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   42:     0x5614318f9c27 - std::sys::unix::thread::Thread::new::thread_start::hdedcb57c96ab37cd
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   43:     0x7fa5d71cb609 - start_thread
[INFO] [stdout]   44:     0x7fa5d6f9d293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_00 stdout ----
[INFO] [stdout] thread 'tests::test_00' panicked at 'Unable to find path to images at "data/train-images-idx3-ubyte".', src/lib.rs:552:33
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5614318f2960 - std::backtrace_rs::backtrace::libunwind::trace::h1037ca7e6eeef65c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5614318f2960 - std::backtrace_rs::backtrace::trace_unsynchronized::haaefac1bc3669450
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5614318f2960 - std::sys_common::backtrace::_print_fmt::h863a6f5e6d995885
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5614318f2960 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h767e17e1aa7df6a8
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x56143191598c - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x5614318ef855 - std::io::Write::write_fmt::h6f1a9b91376a1376
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/io/mod.rs:1584:15
[INFO] [stdout]    6:     0x5614318f4acb - std::sys_common::backtrace::_print::h2769edb26a7eb606
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5614318f4acb - std::sys_common::backtrace::print::ha71f3549862b4cb6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5614318f4acb - std::panicking::default_hook::{{closure}}::h95488a3bade217f6
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5614318f45dc - std::panicking::default_hook::h290aa602c0fb11df
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5614318f5171 - std::panicking::rust_panic_with_hook::hf32c4fa635e215f2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5614318f4c77 - std::panicking::begin_panic_handler::{{closure}}::h95197ccd88846f7a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x5614318f2e3c - std::sys_common::backtrace::__rust_end_short_backtrace::h7641df9566f7b7d0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5614318f4bd9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x561431883d8b - std::panicking::begin_panic_fmt::hdc39c0cc0031e534
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:457:5
[INFO] [stdout]   15:     0x5614318947bc - mnist::images::{{closure}}::hb4f36b4a83377662
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:552:33
[INFO] [stdout]   16:     0x561431890077 - core::result::Result<T,E>::unwrap_or_else::h9834dbe8e1a12b91
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:821:23
[INFO] [stdout]   17:     0x561431893e6f - mnist::images::hf4baea42838e190b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:551:22
[INFO] [stdout]   18:     0x561431892a54 - mnist::MnistBuilder::finalize::h34277cdc3639294d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:405:27
[INFO] [stdout]   19:     0x561431898e86 - mnist::tests::test_00::h6e05037c8cf56688
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:46:17
[INFO] [stdout]   20:     0x561431898e4a - mnist::tests::test_00::{{closure}}::h304cfd3bc0d646ba
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:45:1
[INFO] [stdout]   21:     0x56143189b92e - core::ops::function::FnOnce::call_once::h662f0792ee21cf6b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   22:     0x5614318c3233 - core::ops::function::FnOnce::call_once::h673fbe3f96486fd2
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   23:     0x5614318c3233 - test::__rust_begin_short_backtrace::h8eedc24e104ef6a0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:577:5
[INFO] [stdout]   24:     0x5614318c1ce0 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h028d0969d3f94d78
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   25:     0x5614318c1ce0 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7634b01590b1722b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   26:     0x5614318c1ce0 - std::panicking::try::do_call::hf74f869706dec63b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   27:     0x5614318c1ce0 - std::panicking::try::hd0b7346ebfaaae44
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   28:     0x5614318c1ce0 - std::panic::catch_unwind::hdbf6904f7c253080
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   29:     0x5614318c1ce0 - test::run_test_in_process::h87e95a014ac91067
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:600:18
[INFO] [stdout]   30:     0x5614318c1ce0 - test::run_test::run_test_inner::{{closure}}::hdd69ae44aaab3470
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:492:39
[INFO] [stdout]   31:     0x56143189cfb2 - test::run_test::run_test_inner::{{closure}}::hc159305704d5b68a
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:519:37
[INFO] [stdout]   32:     0x56143189cfb2 - std::sys_common::backtrace::__rust_begin_short_backtrace::h33d8a8ad5f788fcc
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   33:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h6181011ddf4b8353
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   34:     0x5614318a0d28 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf924ea0a0f25a1c0
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9
[INFO] [stdout]   35:     0x5614318a0d28 - std::panicking::try::do_call::hd58061792d05fa5c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   36:     0x5614318a0d28 - std::panicking::try::h3080747417e5af37
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   37:     0x5614318a0d28 - std::panic::catch_unwind::hfeba515dcf36cb66
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14
[INFO] [stdout]   38:     0x5614318a0d28 - std::thread::Builder::spawn_unchecked::{{closure}}::h29d57a62faff749b
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   39:     0x5614318a0d28 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h44709d312d2a9c59
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   40:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h902e2cf6655e1b0c
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   41:     0x5614318f9c27 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h893a5452154309d1
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   42:     0x5614318f9c27 - std::sys::unix::thread::Thread::new::thread_start::hdedcb57c96ab37cd
[INFO] [stdout]                                at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   43:     0x7fa5d71cb609 - start_thread
[INFO] [stdout]   44:     0x7fa5d6f9d293 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::test_00
[INFO] [stdout]     tests::test_01
[INFO] [stdout]     tests::test_06
[INFO] [stdout]     tests::test_10
[INFO] [stdout]     tests::test_11
[INFO] [stdout]     tests::test_12
[INFO] [stdout]     tests::test_example
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 8 passed; 7 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `Command { std: "docker" "inspect" "a99106647d9c7cc9ccdd656fcb99ec769179d56ee6010ae1542dc81894772783", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a99106647d9c7cc9ccdd656fcb99ec769179d56ee6010ae1542dc81894772783", kill_on_drop: false }`
[INFO] [stdout] a99106647d9c7cc9ccdd656fcb99ec769179d56ee6010ae1542dc81894772783