[INFO] fetching crate scrapyard-core 0.1.0...
[INFO] checking scrapyard-core-0.1.0 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate scrapyard-core 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate scrapyard-core 0.1.0 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", 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-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b0514315bcf26782641e498f6513974de4e0a83406456eba9d88eaaee0d561c
[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" "0b0514315bcf26782641e498f6513974de4e0a83406456eba9d88eaaee0d561c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b0514315bcf26782641e498f6513974de4e0a83406456eba9d88eaaee0d561c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b0514315bcf26782641e498f6513974de4e0a83406456eba9d88eaaee0d561c", kill_on_drop: false }`
[INFO] [stdout] 0b0514315bcf26782641e498f6513974de4e0a83406456eba9d88eaaee0d561c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88ee99e25e116ffa3874d3f0d380c7d083d721b109dfa0848e6789c7aca961e8
[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" "88ee99e25e116ffa3874d3f0d380c7d083d721b109dfa0848e6789c7aca961e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling scrapyard-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking serde_json v1.0.58
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stdout] warning: function is never used: `target_dir`
[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]     Checking regex v0.2.11
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.21
[INFO] [stderr]     Checking backtrace v0.3.51
[INFO] [stderr]     Checking error-chain v0.11.0
[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]    |                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[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: 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]    |                                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` 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]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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 a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `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 a macro (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: `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: 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 is never constructed: `InterruptBuilder`
[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 is never used: `new`
[INFO] [stdout]   --> src/irqs.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `InterruptBuilder`
[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 is never used: `new`
[INFO] [stdout]   --> src/irqs.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(path: &Path) -> Result<InterruptBuilder, Box<Error>> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 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] [stderr] error: could not compile `scrapyard-core`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[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[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: build failed
[INFO] running `Command { std: "docker" "inspect" "88ee99e25e116ffa3874d3f0d380c7d083d721b109dfa0848e6789c7aca961e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88ee99e25e116ffa3874d3f0d380c7d083d721b109dfa0848e6789c7aca961e8", kill_on_drop: false }`
[INFO] [stdout] 88ee99e25e116ffa3874d3f0d380c7d083d721b109dfa0848e6789c7aca961e8