[INFO] cloning repository https://github.com/gangashman/rust_recognition_digit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gangashman/rust_recognition_digit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgangashman%2Frust_recognition_digit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgangashman%2Frust_recognition_digit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b714d18f451912eb46294b7003dd1dfe12a99ba
[INFO] checking gangashman/rust_recognition_digit against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgangashman%2Frust_recognition_digit" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files:  50% (7/14)   
Checking out files:  57% (8/14)   
Checking out files:  64% (9/14)   
Checking out files:  71% (10/14)   
Checking out files:  78% (11/14)   
Checking out files:  85% (12/14)   
Checking out files:  92% (13/14)   
Checking out files: 100% (14/14)   
Checking out files: 100% (14/14), done.
[INFO] validating manifest of git repo https://github.com/gangashman/rust_recognition_digit on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gangashman/rust_recognition_digit
[INFO] finished tweaking git repo https://github.com/gangashman/rust_recognition_digit
[INFO] tweaked toml for git repo https://github.com/gangashman/rust_recognition_digit written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/gangashman/rust_recognition_digit already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03ff3712dbd3377e904387b5d047582e888d3ad83cf2454426929ad5f2f451f1
[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" "03ff3712dbd3377e904387b5d047582e888d3ad83cf2454426929ad5f2f451f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03ff3712dbd3377e904387b5d047582e888d3ad83cf2454426929ad5f2f451f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03ff3712dbd3377e904387b5d047582e888d3ad83cf2454426929ad5f2f451f1", kill_on_drop: false }`
[INFO] [stdout] 03ff3712dbd3377e904387b5d047582e888d3ad83cf2454426929ad5f2f451f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf40d994e17988202105650dfb2c329a4a1171ef7c02a17d92b980a4305d1e71
[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" "cf40d994e17988202105650dfb2c329a4a1171ef7c02a17d92b980a4305d1e71", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]    Compiling matrixmultiply v0.1.13
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking libc v0.2.33
[INFO] [stderr]     Checking byteorder v1.1.0
[INFO] [stderr]     Checking mnist v0.4.0
[INFO] [stderr]     Checking rand v0.3.18
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking rulinalg v0.3.7
[INFO] [stderr]     Checking rulinalg v0.4.2
[INFO] [stderr]     Checking rusty-machine v0.5.4
[INFO] [stderr]     Checking recognition_digit v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |     model.train(&inputs, &targets).unwrap();
[INFO] [stdout]    |                 ^^^^^^^ expected `f64`, found `u8`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&rusty_machine::prelude::Matrix<f64>`
[INFO] [stdout]               found reference `&rusty_machine::prelude::Matrix<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:58:17
[INFO] [stdout]    |
[INFO] [stdout] 58 |     model.train(&inputs, &targets).unwrap();
[INFO] [stdout]    |                 ^^^^^^^ expected `f64`, found `u8`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&rusty_machine::prelude::Matrix<f64>`
[INFO] [stdout]               found reference `&rusty_machine::prelude::Matrix<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:58:26
[INFO] [stdout]    |
[INFO] [stdout] 58 |     model.train(&inputs, &targets).unwrap();
[INFO] [stdout]    |                          ^^^^^^^^ expected struct `rusty_machine::prelude::Matrix`, found struct `rusty_machine::prelude::Vector`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&rusty_machine::prelude::Matrix<f64>`
[INFO] [stdout]               found reference `&rusty_machine::prelude::Vector<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `recognition_digit`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:58:26
[INFO] [stdout]    |
[INFO] [stdout] 58 |     model.train(&inputs, &targets).unwrap();
[INFO] [stdout]    |                          ^^^^^^^^ expected struct `rusty_machine::prelude::Matrix`, found struct `rusty_machine::prelude::Vector`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected reference `&rusty_machine::prelude::Matrix<f64>`
[INFO] [stdout]               found reference `&rusty_machine::prelude::Vector<u8>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "cf40d994e17988202105650dfb2c329a4a1171ef7c02a17d92b980a4305d1e71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf40d994e17988202105650dfb2c329a4a1171ef7c02a17d92b980a4305d1e71", kill_on_drop: false }`
[INFO] [stdout] cf40d994e17988202105650dfb2c329a4a1171ef7c02a17d92b980a4305d1e71