[INFO] fetching crate scrapyard-core 0.1.0...
[INFO] testing scrapyard-core-0.1.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate scrapyard-core 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate scrapyard-core 0.1.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scrapyard-core 0.1.0
[INFO] finished tweaking crates.io crate scrapyard-core 0.1.0
[INFO] tweaked toml for crates.io crate scrapyard-core 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive_internals v0.17.0
[INFO] [stderr]   Downloaded standalone-quote v0.5.0
[INFO] [stderr]   Downloaded cbindgen v0.5.2
[INFO] [stderr]   Downloaded serde_derive v1.0.21
[INFO] [stderr]   Downloaded standalone-syn v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 943a543fe403c12b94a13bc4e95370420131e84a28f123f1c800115a8580b3f7
[INFO] running `Command { std: "docker" "start" "-a" "943a543fe403c12b94a13bc4e95370420131e84a28f123f1c800115a8580b3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "943a543fe403c12b94a13bc4e95370420131e84a28f123f1c800115a8580b3f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "943a543fe403c12b94a13bc4e95370420131e84a28f123f1c800115a8580b3f7", kill_on_drop: false }`
[INFO] [stdout] 943a543fe403c12b94a13bc4e95370420131e84a28f123f1c800115a8580b3f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c18953dcce0d0b4e0d5c925bc473fcb4d8ce7687ecfa70491544ae950b1b26fd
[INFO] running `Command { std: "docker" "start" "-a" "c18953dcce0d0b4e0d5c925bc473fcb4d8ce7687ecfa70491544ae950b1b26fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling serde_json v1.0.99
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling scrapyard-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `target_dir` is never used
[INFO] [stdout]   --> build.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn target_dir() -> PathBuf {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]    Compiling serde_derive v1.0.21
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stdout] warning: unused import: `errors::*`
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use errors::*;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]  --> src/errors.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / error_chain!{
[INFO] [stdout] 2 | |         foreign_links {
[INFO] [stdout] 3 | |             Io(::std::io::Error);
[INFO] [stdout] 4 | |             SerdeJSON(::serde_json::Error);
[INFO] [stdout] 5 | |             Parse(::std::num::ParseIntError);
[INFO] [stdout] 6 | |         }
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]   = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/irqs.rs:23:61
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |                                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<dyn Error>> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]  --> src/errors.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / error_chain!{
[INFO] [stdout] 2 | |         foreign_links {
[INFO] [stdout] 3 | |             Io(::std::io::Error);
[INFO] [stdout] 4 | |             SerdeJSON(::serde_json::Error);
[INFO] [stdout] 5 | |             Parse(::std::num::ParseIntError);
[INFO] [stdout] 6 | |         }
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/module/peripheral.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let file = File::open(&self.config);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InterruptBuilder` is never constructed
[INFO] [stdout]   --> src/irqs.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct InterruptBuilder {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/irqs.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl InterruptBuilder {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.68s
[INFO] running `Command { std: "docker" "inspect" "c18953dcce0d0b4e0d5c925bc473fcb4d8ce7687ecfa70491544ae950b1b26fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c18953dcce0d0b4e0d5c925bc473fcb4d8ce7687ecfa70491544ae950b1b26fd", kill_on_drop: false }`
[INFO] [stdout] c18953dcce0d0b4e0d5c925bc473fcb4d8ce7687ecfa70491544ae950b1b26fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18f250781986b384f1f38c77f0a89edc9ed08326fadd7610b05ed4376b1ac312
[INFO] running `Command { std: "docker" "start" "-a" "18f250781986b384f1f38c77f0a89edc9ed08326fadd7610b05ed4376b1ac312", kill_on_drop: false }`
[INFO] [stdout] warning: function `target_dir` is never used
[INFO] [stdout]   --> build.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn target_dir() -> PathBuf {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `errors::*`
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use errors::*;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]  --> src/errors.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / error_chain!{
[INFO] [stdout] 2 | |         foreign_links {
[INFO] [stdout] 3 | |             Io(::std::io::Error);
[INFO] [stdout] 4 | |             SerdeJSON(::serde_json::Error);
[INFO] [stdout] 5 | |             Parse(::std::num::ParseIntError);
[INFO] [stdout] 6 | |         }
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]   = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/irqs.rs:23:61
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |                                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<dyn Error>> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]  --> src/errors.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / error_chain!{
[INFO] [stdout] 2 | |         foreign_links {
[INFO] [stdout] 3 | |             Io(::std::io::Error);
[INFO] [stdout] 4 | |             SerdeJSON(::serde_json::Error);
[INFO] [stdout] 5 | |             Parse(::std::num::ParseIntError);
[INFO] [stdout] 6 | |         }
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/module/peripheral.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let file = File::open(&self.config);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InterruptBuilder` is never constructed
[INFO] [stdout]   --> src/irqs.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct InterruptBuilder {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling scrapyard-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/irqs.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl InterruptBuilder {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `mcu`
[INFO] [stdout]  --> tests/interface.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate mcu;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `mcu`
[INFO] [stdout]  --> tests/integration.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate mcu;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scrapyard-core` (test "interface") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scrapyard-core` (test "integration") due to 2 previous errors
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/irqs.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `errors::*`
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use errors::*;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]  --> src/errors.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / error_chain!{
[INFO] [stdout] 2 | |         foreign_links {
[INFO] [stdout] 3 | |             Io(::std::io::Error);
[INFO] [stdout] 4 | |             SerdeJSON(::serde_json::Error);
[INFO] [stdout] 5 | |             Parse(::std::num::ParseIntError);
[INFO] [stdout] 6 | |         }
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]   = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/irqs.rs:23:61
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |                                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<dyn Error>> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]  --> src/errors.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / error_chain!{
[INFO] [stdout] 2 | |         foreign_links {
[INFO] [stdout] 3 | |             Io(::std::io::Error);
[INFO] [stdout] 4 | |             SerdeJSON(::serde_json::Error);
[INFO] [stdout] 5 | |             Parse(::std::num::ParseIntError);
[INFO] [stdout] 6 | |         }
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mcu`
[INFO] [stdout]    --> src/mcu.rs:206:13
[INFO] [stdout]     |
[INFO] [stdout] 206 |         let mcu = MCU::new(sample);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_mcu`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `package`
[INFO] [stdout]   --> src/package.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let package = Package::new(package_name);
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_package`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/module/peripheral.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let file = File::open(&self.config);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `project_settings`
[INFO] [stdout]    --> src/projectsettings.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let project_settings =
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_project_settings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InterruptBuilder` is never constructed
[INFO] [stdout]   --> src/irqs.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct InterruptBuilder {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/irqs.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl InterruptBuilder {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "18f250781986b384f1f38c77f0a89edc9ed08326fadd7610b05ed4376b1ac312", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18f250781986b384f1f38c77f0a89edc9ed08326fadd7610b05ed4376b1ac312", kill_on_drop: false }`
[INFO] [stdout] 18f250781986b384f1f38c77f0a89edc9ed08326fadd7610b05ed4376b1ac312
[INFO] testing scrapyard-core-0.1.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate scrapyard-core 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate scrapyard-core 0.1.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scrapyard-core 0.1.0
[INFO] finished tweaking crates.io crate scrapyard-core 0.1.0
[INFO] tweaked toml for crates.io crate scrapyard-core 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e27347beb7f3fe3303faf1f443ac4a2cf16841e610fb76af254a97a1dc47ef0a
[INFO] running `Command { std: "docker" "start" "-a" "e27347beb7f3fe3303faf1f443ac4a2cf16841e610fb76af254a97a1dc47ef0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e27347beb7f3fe3303faf1f443ac4a2cf16841e610fb76af254a97a1dc47ef0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e27347beb7f3fe3303faf1f443ac4a2cf16841e610fb76af254a97a1dc47ef0a", kill_on_drop: false }`
[INFO] [stdout] e27347beb7f3fe3303faf1f443ac4a2cf16841e610fb76af254a97a1dc47ef0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d23003648f364f5be75ad26a1dd74900f4ccd7fdd65d0441c7c6f97d0233473
[INFO] running `Command { std: "docker" "start" "-a" "6d23003648f364f5be75ad26a1dd74900f4ccd7fdd65d0441c7c6f97d0233473", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling serde_json v1.0.99
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling scrapyard-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `target_dir` is never used
[INFO] [stdout]   --> build.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn target_dir() -> PathBuf {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]    Compiling serde_derive v1.0.21
[INFO] [stderr]    Compiling backtrace v0.3.69
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stdout] warning: unused import: `errors::*`
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use errors::*;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]  --> src/errors.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / error_chain!{
[INFO] [stdout] 2 | |         foreign_links {
[INFO] [stdout] 3 | |             Io(::std::io::Error);
[INFO] [stdout] 4 | |             SerdeJSON(::serde_json::Error);
[INFO] [stdout] 5 | |             Parse(::std::num::ParseIntError);
[INFO] [stdout] 6 | |         }
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]   = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/irqs.rs:23:61
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |                                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<dyn Error>> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]  --> src/errors.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / error_chain!{
[INFO] [stdout] 2 | |         foreign_links {
[INFO] [stdout] 3 | |             Io(::std::io::Error);
[INFO] [stdout] 4 | |             SerdeJSON(::serde_json::Error);
[INFO] [stdout] 5 | |             Parse(::std::num::ParseIntError);
[INFO] [stdout] 6 | |         }
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/module/peripheral.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let file = File::open(&self.config);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InterruptBuilder` is never constructed
[INFO] [stdout]   --> src/irqs.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct InterruptBuilder {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/irqs.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl InterruptBuilder {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.60s
[INFO] running `Command { std: "docker" "inspect" "6d23003648f364f5be75ad26a1dd74900f4ccd7fdd65d0441c7c6f97d0233473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d23003648f364f5be75ad26a1dd74900f4ccd7fdd65d0441c7c6f97d0233473", kill_on_drop: false }`
[INFO] [stdout] 6d23003648f364f5be75ad26a1dd74900f4ccd7fdd65d0441c7c6f97d0233473
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f3e6a098784c4c63c6383b6d002d179c827e734023d2f5819146627b7db8883
[INFO] running `Command { std: "docker" "start" "-a" "2f3e6a098784c4c63c6383b6d002d179c827e734023d2f5819146627b7db8883", kill_on_drop: false }`
[INFO] [stdout] warning: function `target_dir` is never used
[INFO] [stdout]   --> build.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn target_dir() -> PathBuf {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `errors::*`
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use errors::*;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]  --> src/errors.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / error_chain!{
[INFO] [stdout] 2 | |         foreign_links {
[INFO] [stdout] 3 | |             Io(::std::io::Error);
[INFO] [stdout] 4 | |             SerdeJSON(::serde_json::Error);
[INFO] [stdout] 5 | |             Parse(::std::num::ParseIntError);
[INFO] [stdout] 6 | |         }
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]   = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/irqs.rs:23:61
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |                                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<dyn Error>> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling scrapyard-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]  --> src/errors.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / error_chain!{
[INFO] [stdout] 2 | |         foreign_links {
[INFO] [stdout] 3 | |             Io(::std::io::Error);
[INFO] [stdout] 4 | |             SerdeJSON(::serde_json::Error);
[INFO] [stdout] 5 | |             Parse(::std::num::ParseIntError);
[INFO] [stdout] 6 | |         }
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/module/peripheral.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let file = File::open(&self.config);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InterruptBuilder` is never constructed
[INFO] [stdout]   --> src/irqs.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct InterruptBuilder {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/irqs.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl InterruptBuilder {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `mcu`
[INFO] [stdout]  --> tests/interface.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate mcu;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `mcu`
[INFO] [stdout]  --> tests/integration.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate mcu;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scrapyard-core` (test "interface") due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `scrapyard-core` (test "integration") due to 2 previous errors
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/irqs.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `errors::*`
[INFO] [stdout]   --> src/lib.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use errors::*;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]  --> src/errors.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / error_chain!{
[INFO] [stdout] 2 | |         foreign_links {
[INFO] [stdout] 3 | |             Io(::std::io::Error);
[INFO] [stdout] 4 | |             SerdeJSON(::serde_json::Error);
[INFO] [stdout] 5 | |             Parse(::std::num::ParseIntError);
[INFO] [stdout] 6 | |         }
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]   = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/irqs.rs:23:61
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |                                                             ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<dyn Error>> {
[INFO] [stdout]    |                                                             +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]  --> src/errors.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / error_chain!{
[INFO] [stdout] 2 | |         foreign_links {
[INFO] [stdout] 3 | |             Io(::std::io::Error);
[INFO] [stdout] 4 | |             SerdeJSON(::serde_json::Error);
[INFO] [stdout] 5 | |             Parse(::std::num::ParseIntError);
[INFO] [stdout] 6 | |         }
[INFO] [stdout] 7 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this warning originates in the macro `impl_error_chain_processed` which comes from the expansion of the macro `error_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `mcu`
[INFO] [stdout]    --> src/mcu.rs:206:13
[INFO] [stdout]     |
[INFO] [stdout] 206 |         let mcu = MCU::new(sample);
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_mcu`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `package`
[INFO] [stdout]   --> src/package.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let package = Package::new(package_name);
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_package`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/module/peripheral.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let file = File::open(&self.config);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `project_settings`
[INFO] [stdout]    --> src/projectsettings.rs:132:13
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let project_settings =
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_project_settings`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `InterruptBuilder` is never constructed
[INFO] [stdout]   --> src/irqs.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | struct InterruptBuilder {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/irqs.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl InterruptBuilder {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2f3e6a098784c4c63c6383b6d002d179c827e734023d2f5819146627b7db8883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f3e6a098784c4c63c6383b6d002d179c827e734023d2f5819146627b7db8883", kill_on_drop: false }`
[INFO] [stdout] 2f3e6a098784c4c63c6383b6d002d179c827e734023d2f5819146627b7db8883
