[INFO] fetching crate mpfs-hal-embassy 0.1.0...
[INFO] testing mpfs-hal-embassy-0.1.0 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mpfs-hal-embassy 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate mpfs-hal-embassy 0.1.0
[INFO] finished tweaking crates.io crate mpfs-hal-embassy 0.1.0
[INFO] tweaked toml for crates.io crate mpfs-hal-embassy 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mpfs-hal-embassy 0.1.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 91 packages to latest compatible versions
[INFO] [stderr]       Adding embassy-executor v0.7.0 (available: v0.9.1)
[INFO] [stderr]       Adding embassy-sync v0.6.2 (available: v0.7.2)
[INFO] [stderr]       Adding embassy-time v0.4.0 (available: v0.5.0)
[INFO] [stderr]       Adding embassy-time-queue-utils v0.1.0 (available: v0.3.0)
[INFO] [stderr]       Adding mpfs-hal v0.2.0 (available: v0.3.0)
[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] [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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1d8ce0d86befc97626ec956de828a3462da8938b18d469781cd896a3f59b5329
[INFO] running `Command { std: "docker" "start" "-a" "1d8ce0d86befc97626ec956de828a3462da8938b18d469781cd896a3f59b5329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d8ce0d86befc97626ec956de828a3462da8938b18d469781cd896a3f59b5329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d8ce0d86befc97626ec956de828a3462da8938b18d469781cd896a3f59b5329", kill_on_drop: false }`
[INFO] [stdout] 1d8ce0d86befc97626ec956de828a3462da8938b18d469781cd896a3f59b5329
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f7f6ce33b7ae80792809cdf0aebc403eb5f769a0dfc02f5f2079f3ed53591eeb
[INFO] running `Command { std: "docker" "start" "-a" "f7f6ce33b7ae80792809cdf0aebc403eb5f769a0dfc02f5f2079f3ed53591eeb", kill_on_drop: false }`
[INFO] [stderr]    Compiling critical-section v1.2.0
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling prettyplease v0.2.37
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling embedded-hal v1.0.0
[INFO] [stderr]    Compiling embedded-io-async v0.6.1
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling libloading v0.8.9
[INFO] [stderr]    Compiling bindgen v0.70.1
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling embedded-io v0.6.1
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling embassy-sync v0.7.2
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling embassy-hal-internal v0.3.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling embassy-time-driver v0.2.1
[INFO] [stderr]    Compiling bitflags v2.9.4
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling riscv v0.12.1
[INFO] [stderr]    Compiling embedded-storage v0.3.1
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling embassy-sync v0.6.2
[INFO] [stderr]    Compiling unicode-width v0.1.14
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling embedded-storage-async v0.4.1
[INFO] [stderr]    Compiling svgbobdoc v0.3.0
[INFO] [stderr]    Compiling riscv-macros v0.1.0
[INFO] [stderr]    Compiling embassy-futures v0.1.2
[INFO] [stderr]    Compiling const-default v1.0.0
[INFO] [stderr]    Compiling portable-atomic v1.11.1
[INFO] [stderr]    Compiling embassy-executor v0.7.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling riscv-pac v0.2.0
[INFO] [stderr]    Compiling embassy-embedded-hal v0.4.0
[INFO] [stderr]    Compiling rlsf v0.2.1
[INFO] [stderr]    Compiling embassy-time v0.4.0
[INFO] [stderr]    Compiling embassy-time-queue-utils v0.1.0
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling linked_list_allocator v0.10.5
[INFO] [stderr]    Compiling embedded-alloc v0.6.0
[INFO] [stderr]    Compiling mpfs-hal-procmacros v0.2.0
[INFO] [stderr]    Compiling embassy-embedded-hal v0.3.2
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling static_cell v2.1.1
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling embassy-executor-macros v0.6.2
[INFO] [stderr]    Compiling mpfs-pac v0.2.0
[INFO] [stderr] warning: mpfs-pac@0.2.0: Compiler family detection failed due to error: ToolNotFound: failed to find tool "riscv64-unknown-elf-gcc": No such file or directory (os error 2)
[INFO] [stderr] error: failed to run custom build command for `mpfs-pac v0.2.0`
[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/mpfs-pac-a51ff89c432c32ae/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=mpfs-platform
[INFO] [stderr]   cargo:rerun-if-changed=build.rs
[INFO] [stderr]   cargo:rerun-if-changed=linker.ld
[INFO] [stderr]   OUT_DIR = Some(/opt/rustwide/target/debug/build/mpfs-pac-3b56f0fbfa49cf3b/out)
[INFO] [stderr]   OPT_LEVEL = Some(0)
[INFO] [stderr]   cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
[INFO] [stderr]   cargo:warning=Compiler family detection failed due to error: ToolNotFound: failed to find tool "riscv64-unknown-elf-gcc": No such file or directory (os error 2)
[INFO] [stderr]   cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
[INFO] [stderr]   CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr]   TARGET = Some(x86_64-unknown-linux-gnu)
[INFO] [stderr]   DEBUG = Some(true)
[INFO] [stderr]   CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
[INFO] [stderr]   HOST = Some(x86_64-unknown-linux-gnu)
[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_ENCODED_RUSTFLAGS = Some(--cap-lints=warn)
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   error occurred in cc-rs: failed to find tool "riscv64-unknown-elf-gcc": No such file or directory (os error 2)
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "f7f6ce33b7ae80792809cdf0aebc403eb5f769a0dfc02f5f2079f3ed53591eeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7f6ce33b7ae80792809cdf0aebc403eb5f769a0dfc02f5f2079f3ed53591eeb", kill_on_drop: false }`
[INFO] [stdout] f7f6ce33b7ae80792809cdf0aebc403eb5f769a0dfc02f5f2079f3ed53591eeb