[INFO] fetching crate custom_error_core 1.9.0...
[INFO] checking custom_error_core-1.9.0 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate custom_error_core 1.9.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate custom_error_core 1.9.0 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate custom_error_core 1.9.0
[INFO] finished tweaking crates.io crate custom_error_core 1.9.0
[INFO] tweaked toml for crates.io crate custom_error_core 1.9.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b96d583aa8937a7ced34389d1c7268505c044ce7161556b9d1817995b8289e4
[INFO] running `Command { std: "docker" "start" "-a" "2b96d583aa8937a7ced34389d1c7268505c044ce7161556b9d1817995b8289e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b96d583aa8937a7ced34389d1c7268505c044ce7161556b9d1817995b8289e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b96d583aa8937a7ced34389d1c7268505c044ce7161556b9d1817995b8289e4", kill_on_drop: false }`
[INFO] [stdout] 2b96d583aa8937a7ced34389d1c7268505c044ce7161556b9d1817995b8289e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a41749b369aadd83a05d0894b27acf4d7c4d7e6009b9aea416169528267a4d57
[INFO] running `Command { std: "docker" "start" "-a" "a41749b369aadd83a05d0894b27acf4d7c4d7e6009b9aea416169528267a4d57", kill_on_drop: false }`
[INFO] [stderr]     Checking custom_error_core v1.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: named argument `description` is not used by name
[INFO] [stdout]    --> src/lib.rs:555:32
[INFO] [stdout]     |
[INFO] [stdout] 555 |         custom_error!(MyError {description: &'static str} = "{}");
[INFO] [stdout]     |                                ^^^^^^^^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `x` is not used by name
[INFO] [stdout]    --> src/lib.rs:627:41
[INFO] [stdout]     |
[INFO] [stdout] 627 |             custom_error! {pub MyError {x: &'static str} = "{}"}
[INFO] [stdout]     |                                         ^ this named argument is referred to by position in formatting string
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `x` is not used by name
[INFO] [stdout]    --> src/lib.rs:637:17
[INFO] [stdout]     |
[INFO] [stdout] 637 |                 x: &'static str
[INFO] [stdout]     |                 ^ this named argument is referred to by position in formatting string
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `custom_error`
[INFO] [stdout]  --> tests/tests.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate custom_error;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `custom_error` in this scope
[INFO] [stdout]  --> tests/tests.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | custom_error! {
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `custom_error` is imported here, but it is an unresolved item, not a macro
[INFO] [stdout]  --> tests/tests.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate custom_error;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]   |
[INFO] [stdout] 4 + use custom_error_core::custom_error;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `custom_error` in this scope
[INFO] [stdout]   --> tests/tests.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | custom_error! {FileParseError
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `custom_error` is imported here, but it is an unresolved item, not a macro
[INFO] [stdout]   --> tests/tests.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | extern crate custom_error;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout] 4  + use custom_error_core::custom_error;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `OpenFileError` in this scope
[INFO] [stdout]   --> tests/tests.rs:13:54
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn open_file_verbose(filename: &str) -> Result<File, OpenFileError> {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn open_file_verbose<OpenFileError>(filename: &str) -> Result<File, OpenFileError> {
[INFO] [stdout]    |                     +++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `FileParseError` in this scope
[INFO] [stdout]   --> tests/tests.rs:29:49
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn parse_hex_file(filename: &str) -> Result<u8, FileParseError> {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn parse_hex_file<FileParseError>(filename: &str) -> Result<u8, FileParseError> {
[INFO] [stdout]    |                  ++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `io`, `num::ParseIntError`
[INFO] [stdout]  --> tests/tests.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{fs::File, io, io::ErrorKind, io::Read, num::ParseIntError, result::Result};
[INFO] [stdout]   |                     ^^                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OpenFileError`
[INFO] [stdout]   --> tests/tests.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 18 |         _ => OpenFileError::Other,
[INFO] [stdout]    |              ^^^^^^^^^^^^^ use of undeclared type `OpenFileError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> tests/tests.rs:4:40
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{fs::File, io, io::ErrorKind, io::Read, num::ParseIntError, result::Result};
[INFO] [stdout]   |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OpenFileError`
[INFO] [stdout]   --> tests/tests.rs:15:32
[INFO] [stdout]    |
[INFO] [stdout] 15 |         ErrorKind::NotFound => OpenFileError::NotFound {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^ use of undeclared type `OpenFileError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `FileParseError`
[INFO] [stdout]   --> tests/tests.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         Err(FileParseError::TooLarge { value })
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ use of undeclared type `FileParseError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433, E0463.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `custom_error_core` (test "tests") due to 9 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a41749b369aadd83a05d0894b27acf4d7c4d7e6009b9aea416169528267a4d57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a41749b369aadd83a05d0894b27acf4d7c4d7e6009b9aea416169528267a4d57", kill_on_drop: false }`
[INFO] [stdout] a41749b369aadd83a05d0894b27acf4d7c4d7e6009b9aea416169528267a4d57
[INFO] checking custom_error_core-1.9.0 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate custom_error_core 1.9.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate custom_error_core 1.9.0 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate custom_error_core 1.9.0
[INFO] finished tweaking crates.io crate custom_error_core 1.9.0
[INFO] tweaked toml for crates.io crate custom_error_core 1.9.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 639020ba6d4c2cda8fe2b268d33bc3725bc7fd9d5815cb3d0421fd5186153709
[INFO] running `Command { std: "docker" "start" "-a" "639020ba6d4c2cda8fe2b268d33bc3725bc7fd9d5815cb3d0421fd5186153709", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "639020ba6d4c2cda8fe2b268d33bc3725bc7fd9d5815cb3d0421fd5186153709", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "639020ba6d4c2cda8fe2b268d33bc3725bc7fd9d5815cb3d0421fd5186153709", kill_on_drop: false }`
[INFO] [stdout] 639020ba6d4c2cda8fe2b268d33bc3725bc7fd9d5815cb3d0421fd5186153709
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2de085ee5d66e2497c114b897c1842a9d04b83788aceff0d6901f7cfd522a76f
[INFO] running `Command { std: "docker" "start" "-a" "2de085ee5d66e2497c114b897c1842a9d04b83788aceff0d6901f7cfd522a76f", kill_on_drop: false }`
[INFO] [stderr]     Checking custom_error_core v1.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: named argument `description` is not used by name
[INFO] [stdout]    --> src/lib.rs:555:32
[INFO] [stdout]     |
[INFO] [stdout] 555 |         custom_error!(MyError {description: &'static str} = "{}");
[INFO] [stdout]     |                                ^^^^^^^^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `x` is not used by name
[INFO] [stdout]    --> src/lib.rs:627:41
[INFO] [stdout]     |
[INFO] [stdout] 627 |             custom_error! {pub MyError {x: &'static str} = "{}"}
[INFO] [stdout]     |                                         ^ this named argument is referred to by position in formatting string
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `x` is not used by name
[INFO] [stdout]    --> src/lib.rs:637:17
[INFO] [stdout]     |
[INFO] [stdout] 637 |                 x: &'static str
[INFO] [stdout]     |                 ^ this named argument is referred to by position in formatting string
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `custom_error`
[INFO] [stdout]  --> tests/tests.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate custom_error;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `custom_error` in this scope
[INFO] [stdout]  --> tests/tests.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | custom_error! {
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `custom_error` is imported here, but it is an unresolved item, not a macro
[INFO] [stdout]  --> tests/tests.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate custom_error;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]   |
[INFO] [stdout] 4 + use custom_error_core::custom_error;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find macro `custom_error` in this scope
[INFO] [stdout]   --> tests/tests.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | custom_error! {FileParseError
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `custom_error` is imported here, but it is an unresolved item, not a macro
[INFO] [stdout]   --> tests/tests.rs:2:1
[INFO] [stdout]    |
[INFO] [stdout] 2  | extern crate custom_error;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider importing this macro
[INFO] [stdout]    |
[INFO] [stdout] 4  + use custom_error_core::custom_error;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `OpenFileError` in this scope
[INFO] [stdout]   --> tests/tests.rs:13:54
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn open_file_verbose(filename: &str) -> Result<File, OpenFileError> {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn open_file_verbose<OpenFileError>(filename: &str) -> Result<File, OpenFileError> {
[INFO] [stdout]    |                     +++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `FileParseError` in this scope
[INFO] [stdout]   --> tests/tests.rs:29:49
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn parse_hex_file(filename: &str) -> Result<u8, FileParseError> {
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn parse_hex_file<FileParseError>(filename: &str) -> Result<u8, FileParseError> {
[INFO] [stdout]    |                  ++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `io`, `num::ParseIntError`
[INFO] [stdout]  --> tests/tests.rs:4:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{fs::File, io, io::ErrorKind, io::Read, num::ParseIntError, result::Result};
[INFO] [stdout]   |                     ^^                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OpenFileError`
[INFO] [stdout]   --> tests/tests.rs:18:14
[INFO] [stdout]    |
[INFO] [stdout] 18 |         _ => OpenFileError::Other,
[INFO] [stdout]    |              ^^^^^^^^^^^^^ use of undeclared type `OpenFileError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> tests/tests.rs:4:40
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::{fs::File, io, io::ErrorKind, io::Read, num::ParseIntError, result::Result};
[INFO] [stdout]   |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `OpenFileError`
[INFO] [stdout]   --> tests/tests.rs:15:32
[INFO] [stdout]    |
[INFO] [stdout] 15 |         ErrorKind::NotFound => OpenFileError::NotFound {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^ use of undeclared type `OpenFileError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `FileParseError`
[INFO] [stdout]   --> tests/tests.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         Err(FileParseError::TooLarge { value })
[INFO] [stdout]    |             ^^^^^^^^^^^^^^ use of undeclared type `FileParseError`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0433, E0463.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `custom_error_core` (test "tests") due to 9 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2de085ee5d66e2497c114b897c1842a9d04b83788aceff0d6901f7cfd522a76f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2de085ee5d66e2497c114b897c1842a9d04b83788aceff0d6901f7cfd522a76f", kill_on_drop: false }`
[INFO] [stdout] 2de085ee5d66e2497c114b897c1842a9d04b83788aceff0d6901f7cfd522a76f
