[INFO] fetching crate mh-z19c 0.3.0...
[INFO] testing mh-z19c-0.3.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mh-z19c 0.3.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate mh-z19c 0.3.0
[INFO] finished tweaking crates.io crate mh-z19c 0.3.0
[INFO] tweaked toml for crates.io crate mh-z19c 0.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mh-z19c 0.3.0 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 5 packages to latest compatible versions
[INFO] [stderr]       Adding embedded-hal v0.2.7 (available: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5edb56bf70b2b7c679ee11d5e85237a35ebcd91fd1ebcb75440bf424f292917c
[INFO] running `Command { std: "docker" "start" "-a" "5edb56bf70b2b7c679ee11d5e85237a35ebcd91fd1ebcb75440bf424f292917c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5edb56bf70b2b7c679ee11d5e85237a35ebcd91fd1ebcb75440bf424f292917c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5edb56bf70b2b7c679ee11d5e85237a35ebcd91fd1ebcb75440bf424f292917c", kill_on_drop: false }`
[INFO] [stdout] 5edb56bf70b2b7c679ee11d5e85237a35ebcd91fd1ebcb75440bf424f292917c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6b54f6bbbfb6135a363b6464846738bb4eb6f0b69f2e11bdc3d0aa41dc7baa5
[INFO] running `Command { std: "docker" "start" "-a" "f6b54f6bbbfb6135a363b6464846738bb4eb6f0b69f2e11bdc3d0aa41dc7baa5", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling mh-z19c v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `std`
[INFO] [stdout]    --> src/lib.rs:469:7
[INFO] [stdout]     |
[INFO] [stdout] 469 | #[cfg(std)]
[INFO] [stdout]     |       ^^^ help: found config with similar value: `feature = "std"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `std`
[INFO] [stdout]    --> src/frame.rs:127:7
[INFO] [stdout]     |
[INFO] [stdout] 127 | #[cfg(std)]
[INFO] [stdout]     |       ^^^ help: found config with similar value: `feature = "std"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "f6b54f6bbbfb6135a363b6464846738bb4eb6f0b69f2e11bdc3d0aa41dc7baa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6b54f6bbbfb6135a363b6464846738bb4eb6f0b69f2e11bdc3d0aa41dc7baa5", kill_on_drop: false }`
[INFO] [stdout] f6b54f6bbbfb6135a363b6464846738bb4eb6f0b69f2e11bdc3d0aa41dc7baa5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b75b103391449b5a38fd7dd7c2e90689b812222def8c5a6f2177a4a8ca9f8aca
[INFO] running `Command { std: "docker" "start" "-a" "b75b103391449b5a38fd7dd7c2e90689b812222def8c5a6f2177a4a8ca9f8aca", kill_on_drop: false }`
[INFO] [stdout] warning: unexpected `cfg` condition name: `std`
[INFO] [stdout]    --> src/lib.rs:469:7
[INFO] [stdout]     |
[INFO] [stdout] 469 | #[cfg(std)]
[INFO] [stdout]     |       ^^^ help: found config with similar value: `feature = "std"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `std`
[INFO] [stdout]    --> src/frame.rs:127:7
[INFO] [stdout]     |
[INFO] [stdout] 127 | #[cfg(std)]
[INFO] [stdout]     |       ^^^ help: found config with similar value: `feature = "std"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mh-z19c v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `test_support`
[INFO] [stdout]    --> src/nb_comm.rs:316:9
[INFO] [stdout]     |
[INFO] [stdout] 316 |     use test_support::serial_mock::SerialMock;
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of unresolved module or unlinked crate `test_support`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `test_support`, use `cargo add test_support` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `test_support`
[INFO] [stdout]    --> src/lib.rs:483:9
[INFO] [stdout]     |
[INFO] [stdout] 483 |     use test_support::serial_mock::SerialMock;
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of unresolved module or unlinked crate `test_support`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `test_support`, use `cargo add test_support` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `test_support`
[INFO] [stdout]    --> src/lib.rs:484:9
[INFO] [stdout]     |
[INFO] [stdout] 484 |     use test_support::{
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of unresolved module or unlinked crate `test_support`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `test_support`, use `cargo add test_support` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `std`
[INFO] [stdout]    --> src/lib.rs:469:7
[INFO] [stdout]     |
[INFO] [stdout] 469 | #[cfg(std)]
[INFO] [stdout]     |       ^^^ help: found config with similar value: `feature = "std"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]     = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `std`
[INFO] [stdout]    --> src/frame.rs:127:7
[INFO] [stdout]     |
[INFO] [stdout] 127 | #[cfg(std)]
[INFO] [stdout]     |       ^^^ help: found config with similar value: `feature = "std"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(std)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(std)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mh-z19c` (lib test) due to 3 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b75b103391449b5a38fd7dd7c2e90689b812222def8c5a6f2177a4a8ca9f8aca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b75b103391449b5a38fd7dd7c2e90689b812222def8c5a6f2177a4a8ca9f8aca", kill_on_drop: false }`
[INFO] [stdout] b75b103391449b5a38fd7dd7c2e90689b812222def8c5a6f2177a4a8ca9f8aca
