[INFO] fetching crate teensycore 0.1.0...
[INFO] testing teensycore-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate teensycore 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate teensycore 0.1.0
[INFO] finished tweaking crates.io crate teensycore 0.1.0
[INFO] tweaked toml for crates.io crate teensycore 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate teensycore 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "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-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 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-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b70c2ab9c540972bbdaa9ad22359219b5f76e11d10c32f733e0c913bdf8edfd
[INFO] running `Command { std: "docker" "start" "-a" "6b70c2ab9c540972bbdaa9ad22359219b5f76e11d10c32f733e0c913bdf8edfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b70c2ab9c540972bbdaa9ad22359219b5f76e11d10c32f733e0c913bdf8edfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b70c2ab9c540972bbdaa9ad22359219b5f76e11d10c32f733e0c913bdf8edfd", kill_on_drop: false }`
[INFO] [stdout] 6b70c2ab9c540972bbdaa9ad22359219b5f76e11d10c32f733e0c913bdf8edfd
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e8bba98108508c80ec169e2e7f78e847aadd7cc3252381a879acca727423702
[INFO] running `Command { std: "docker" "start" "-a" "0e8bba98108508c80ec169e2e7f78e847aadd7cc3252381a879acca727423702", kill_on_drop: false }`
[INFO] [stderr]    Compiling teensycore v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: teensycore@0.1.0: cc: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead
[INFO] [stderr] warning: teensycore@0.1.0: cc: error: unrecognized command-line option '-mthumb'
[INFO] [stderr] warning: teensycore@0.1.0: cc: error: unrecognized command-line option '-mfloat-abi=hard'
[INFO] [stderr] error: failed to run custom build command for `teensycore v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/teensycore-58e0aef842e9535c/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_FORCE_DISABLE
[INFO] [stderr]   CC_FORCE_DISABLE = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_x86_64-unknown-linux-gnu
[INFO] [stderr]   CC_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_x86_64_unknown_linux_gnu
[INFO] [stderr]   CC_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CC
[INFO] [stderr]   HOST_CC = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC
[INFO] [stderr]   CC = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
[INFO] [stderr]   cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
[INFO] [stderr]   CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS
[INFO] [stderr]   CFLAGS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=HOST_CFLAGS
[INFO] [stderr]   HOST_CFLAGS = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
[INFO] [stderr]   CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
[INFO] [stderr]   CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   cargo:warning=cc: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead
[INFO] [stderr]   cargo:warning=cc: error: unrecognized command-line option '-mthumb'
[INFO] [stderr]   cargo:warning=cc: error: unrecognized command-line option '-mfloat-abi=hard'
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   error occurred in cc-rs: command did not execute successfully (status code exit status: 1): LC_ALL="C" "cc" "-O3" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-Wall" "-mcpu=cortex-m7" "-mthumb" "-mfloat-abi=hard" "-o" "/opt/rustwide/target/debug/build/teensycore-29361fec7ef09c0a/out/ea708c7824d36062-teensy.o" "-c" "src/teensy.c"
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "0e8bba98108508c80ec169e2e7f78e847aadd7cc3252381a879acca727423702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e8bba98108508c80ec169e2e7f78e847aadd7cc3252381a879acca727423702", kill_on_drop: false }`
[INFO] [stdout] 0e8bba98108508c80ec169e2e7f78e847aadd7cc3252381a879acca727423702
