[INFO] fetching crate microbit 0.15.1...
[INFO] testing microbit-0.15.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate microbit 0.15.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate microbit 0.15.1
[INFO] finished tweaking crates.io crate microbit 0.15.1
[INFO] tweaked toml for crates.io crate microbit 0.15.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate microbit 0.15.1 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 46 packages to latest compatible versions
[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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33b5d4957a34e09993784a453e7a19628f3238dced046c26e05be16ec241a2e2
[INFO] running `Command { std: "docker" "start" "-a" "33b5d4957a34e09993784a453e7a19628f3238dced046c26e05be16ec241a2e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33b5d4957a34e09993784a453e7a19628f3238dced046c26e05be16ec241a2e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33b5d4957a34e09993784a453e7a19628f3238dced046c26e05be16ec241a2e2", kill_on_drop: false }`
[INFO] [stdout] 33b5d4957a34e09993784a453e7a19628f3238dced046c26e05be16ec241a2e2
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57f68df8ebcfc8690c26bc2cbc2083ce725a011847532b88a8c57211fea23264
[INFO] running `Command { std: "docker" "start" "-a" "57f68df8ebcfc8690c26bc2cbc2083ce725a011847532b88a8c57211fea23264", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.5
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling nrf51-pac v0.12.2
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling fixed v1.29.0
[INFO] [stderr]    Compiling nrf-hal-common v0.18.0
[INFO] [stderr]    Compiling volatile-register v0.2.2
[INFO] [stderr]    Compiling half v2.6.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling bytemuck v1.23.2
[INFO] [stderr]    Compiling embedded-dma v0.2.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling nrf51-hal v0.18.0
[INFO] [stderr]    Compiling embedded-storage v0.3.1
[INFO] [stderr]    Compiling embedded-io v0.6.1
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling embedded-hal v1.0.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling tiny-led-matrix v1.0.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.5
[INFO] [stderr]    Compiling microbit-common v0.15.1
[INFO] [stderr]    Compiling microbit v0.15.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.06s
[INFO] running `Command { std: "docker" "inspect" "57f68df8ebcfc8690c26bc2cbc2083ce725a011847532b88a8c57211fea23264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57f68df8ebcfc8690c26bc2cbc2083ce725a011847532b88a8c57211fea23264", kill_on_drop: false }`
[INFO] [stdout] 57f68df8ebcfc8690c26bc2cbc2083ce725a011847532b88a8c57211fea23264
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21a7dab68b7f10bbdce4a2cbacf8641996cb9b99140cc71dd9d2aca613f1db3c
[INFO] running `Command { std: "docker" "start" "-a" "21a7dab68b7f10bbdce4a2cbacf8641996cb9b99140cc71dd9d2aca613f1db3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling microbit v0.15.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "21a7dab68b7f10bbdce4a2cbacf8641996cb9b99140cc71dd9d2aca613f1db3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21a7dab68b7f10bbdce4a2cbacf8641996cb9b99140cc71dd9d2aca613f1db3c", kill_on_drop: false }`
[INFO] [stdout] 21a7dab68b7f10bbdce4a2cbacf8641996cb9b99140cc71dd9d2aca613f1db3c
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0b6c90e379b07678dea8f672ba6ff2b4626c934a3adaf30fc4f82e86f3cfa21d
[INFO] running `Command { std: "docker" "start" "-a" "0b6c90e379b07678dea8f672ba6ff2b4626c934a3adaf30fc4f82e86f3cfa21d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/microbit-e611dafd4bfe4eda)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests microbit
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0b6c90e379b07678dea8f672ba6ff2b4626c934a3adaf30fc4f82e86f3cfa21d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b6c90e379b07678dea8f672ba6ff2b4626c934a3adaf30fc4f82e86f3cfa21d", kill_on_drop: false }`
[INFO] [stdout] 0b6c90e379b07678dea8f672ba6ff2b4626c934a3adaf30fc4f82e86f3cfa21d