[INFO] fetching crate microbit-bsp 0.4.0...
[INFO] testing microbit-bsp-0.4.0 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate microbit-bsp 0.4.0 into /workspace/builds/worker-6-tc2/source
[INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate microbit-bsp 0.4.0
[INFO] finished tweaking crates.io crate microbit-bsp 0.4.0
[INFO] tweaked toml for crates.io crate microbit-bsp 0.4.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate microbit-bsp 0.4.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate microbit-bsp 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 20bfb2a1689d958b317a162989a9bbc0cff0c41bc51fba89e922b725d2a9d757
[INFO] running `Command { std: "docker" "start" "20bfb2a1689d958b317a162989a9bbc0cff0c41bc51fba89e922b725d2a9d757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20bfb2a1689d958b317a162989a9bbc0cff0c41bc51fba89e922b725d2a9d757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "20bfb2a1689d958b317a162989a9bbc0cff0c41bc51fba89e922b725d2a9d757" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20bfb2a1689d958b317a162989a9bbc0cff0c41bc51fba89e922b725d2a9d757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "20bfb2a1689d958b317a162989a9bbc0cff0c41bc51fba89e922b725d2a9d757" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling defmt v1.0.1
[INFO] [stderr]    Compiling defmt-macros v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling nb v1.1.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling critical-section v1.1.2
[INFO] [stderr]    Compiling futures-core v0.3.30
[INFO] [stderr]    Compiling futures-sink v0.3.30
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling cortex-m v0.7.7
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]    Compiling pin-project-lite v0.2.14
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling embedded-hal-async v1.0.0
[INFO] [stderr]    Compiling embedded-io-async v0.6.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling embedded-io v0.6.1
[INFO] [stderr]    Compiling embedded-hal v1.0.0
[INFO] [stderr]    Compiling embassy-time-driver v0.2.0
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cortex-m-rt v0.7.4
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling document-features v0.2.8
[INFO] [stderr]    Compiling volatile-register v0.2.2
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling pulldown-cmark v0.11.3
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling embassy-sync v0.6.2
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling embassy-executor v0.7.0
[INFO] [stderr]    Compiling nrf-pac v0.1.0
[INFO] [stderr]    Compiling embedded-storage v0.3.1
[INFO] [stderr]    Compiling portable-atomic v1.10.0
[INFO] [stderr]    Compiling embassy-time-queue-utils v0.1.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling fixed v1.27.0
[INFO] [stderr]    Compiling embassy-hal-internal v0.3.0
[INFO] [stderr]    Compiling embassy-sync v0.7.0
[INFO] [stderr]    Compiling embedded-storage-async v0.4.1
[INFO] [stderr]    Compiling half v2.4.1
[INFO] [stderr]    Compiling embassy-futures v0.1.1
[INFO] [stderr]    Compiling bytemuck v1.15.0
[INFO] [stderr]    Compiling futures-channel v0.3.30
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling rand_core v0.9.3
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling static_cell v2.1.0
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling maybe-async-cfg v0.2.4
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling lsm303agr v1.1.0
[INFO] [stderr]    Compiling defmt-parser v1.0.0
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling embassy-executor-macros v0.6.2
[INFO] [stderr]    Compiling defmt v0.3.100
[INFO] [stderr]    Compiling embassy-time v0.4.0
[INFO] [stderr]    Compiling embassy-usb-driver v0.1.0
[INFO] [stderr]    Compiling embassy-embedded-hal v0.3.0
[INFO] [stderr]    Compiling embassy-nrf v0.4.1
[INFO] [stderr]    Compiling microbit-bsp v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused dependency `futures`
[INFO] [stderr]   --> Cargo.toml:22:15
[INFO] [stderr]    |
[INFO] [stderr] 22 | [dependencies.futures]
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `futures`
[INFO] [stderr] warning: `microbit-bsp` (manifest) generated 1 warning
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 59.17s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: document-features v0.2.8, proc-macro-error2 v2.0.1
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "20bfb2a1689d958b317a162989a9bbc0cff0c41bc51fba89e922b725d2a9d757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "20bfb2a1689d958b317a162989a9bbc0cff0c41bc51fba89e922b725d2a9d757" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling microbit-bsp v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note:  "cc" "-m64" "/opt/rustwide/target/release/build/microbit-bsp/3e3747ff22574d8c/out/rustc2OANCT/symbols.o" "<2 object files omitted>" "-Wl,--as-needed" "-Wl,-Bstatic" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libtest-*,libgetopts-*,librustc_std_workspace_std-*,libstd-*,libpanic_unwind-*,libobject-*,libmemchr-*,libaddr2line-*,libgimli-*,libcfg_if-*,librustc_demangle-*,libstd_detect-*,libhashbrown-*,librustc_std_workspace_alloc-*,libminiz_oxide-*,libadler2-*,libunwind-*,liblibc-*,librustc_std_workspace_core-*,liballoc-*}.rlib" "/opt/rustwide/target/release/build/static_cell/c569078328bc5e48/out/libstatic_cell-c569078328bc5e48.rlib" "/opt/rustwide/target/release/build/portable-atomic/a4b4d7e1a33ef037/out/libportable_atomic-a4b4d7e1a33ef037.rlib" "/opt/rustwide/target/release/build/lsm303agr/d40d449742a3fb73/out/liblsm303agr-d40d449742a3fb73.rlib" "/opt/rustwide/target/release/build/embassy-nrf/56f67edcd8597c55/out/libembassy_nrf-56f67edcd8597c55.rlib" "/opt/rustwide/target/release/build/rand_core/1585fdacf6f9b59d/out/librand_core-1585fdacf6f9b59d.rlib" "/opt/rustwide/target/release/build/rand_core/eca2545841f9a904/out/librand_core-eca2545841f9a904.rlib" "/opt/rustwide/target/release/build/bitflags/5f3a4a6540cab21c/out/libbitflags-5f3a4a6540cab21c.rlib" "/opt/rustwide/target/release/build/nrf-pac/b065d15793338de0/out/libnrf_pac-b065d15793338de0.rlib" "/opt/rustwide/target/release/build/cortex-m-rt/c33ed14f7dc7ddf4/out/libcortex_m_rt-c33ed14f7dc7ddf4.rlib" "/opt/rustwide/target/release/build/embassy-usb-driver/7621d1aaf66ce52b/out/libembassy_usb_driver-7621d1aaf66ce52b.rlib" "/opt/rustwide/target/release/build/embassy-embedded-hal/6e376bb7d1dbded9/out/libembassy_embedded_hal-6e376bb7d1dbded9.rlib" "/opt/rustwide/target/release/build/embassy-time/1d8278f65e7693c3/out/libembassy_time-1d8278f65e7693c3.rlib" "/opt/rustwide/target/release/build/embedded-hal-async/2cc5579bf46c67ae/out/libembedded_hal_async-2cc5579bf46c67ae.rlib" "/opt/rustwide/target/release/build/embedded-hal/daa72772ba7638a3/out/libembedded_hal-daa72772ba7638a3.rlib" "/opt/rustwide/target/release/build/embassy-sync/0154c3fae406ad10/out/libembassy_sync-0154c3fae406ad10.rlib" "/opt/rustwide/target/release/build/embassy-futures/0318c3dae5c8a13a/out/libembassy_futures-0318c3dae5c8a13a.rlib" "/opt/rustwide/target/release/build/embedded-storage-async/64ef41a6dcc81855/out/libembedded_storage_async-64ef41a6dcc81855.rlib" "/opt/rustwide/target/release/build/fixed/cd50dd633b30b0e3/out/libfixed-cd50dd633b30b0e3.rlib" "/opt/rustwide/target/release/build/typenum/d3a9ef6dd6c4e3db/out/libtypenum-d3a9ef6dd6c4e3db.rlib" "/opt/rustwide/target/release/build/bytemuck/540d5d89751cc41f/out/libbytemuck-540d5d89751cc41f.rlib" "/opt/rustwide/target/release/build/half/0d6b44a9010572f3/out/libhalf-0d6b44a9010572f3.rlib" "/opt/rustwide/target/release/build/az/1c870d72c88e2c22/out/libaz-1c870d72c88e2c22.rlib" "/opt/rustwide/target/release/build/embedded-storage/c714c0d097433881/out/libembedded_storage-c714c0d097433881.rlib" "/opt/rustwide/target/release/build/cfg-if/193575a6b29a3ab9/out/libcfg_if-193575a6b29a3ab9.rlib" "/opt/rustwide/target/release/build/embassy-hal-internal/1342b83a52c98278/out/libembassy_hal_internal-1342b83a52c98278.rlib" "/opt/rustwide/target/release/build/cortex-m/a6938f6817b66165/out/libcortex_m-a6938f6817b66165.rlib" "/opt/rustwide/target/release/build/embedded-hal/4d0778c6acbddd05/out/libembedded_hal-4d0778c6acbddd05.rlib" "/opt/rustwide/target/release/build/void/58d61b18b44b0b6c/out/libvoid-58d61b18b44b0b6c.rlib" "/opt/rustwide/target/release/build/nb/2a2ed0a02b643d7e/out/libnb-2a2ed0a02b643d7e.rlib" "/opt/rustwide/target/release/build/nb/226f7ba4cc4c327f/out/libnb-226f7ba4cc4c327f.rlib" "/opt/rustwide/target/release/build/volatile-register/f95cb350a1fe0fb0/out/libvolatile_register-f95cb350a1fe0fb0.rlib" "/opt/rustwide/target/release/build/vcell/08d90b29746419e9/out/libvcell-08d90b29746419e9.rlib" "/opt/rustwide/target/release/build/bare-metal/803bef466edead4e/out/libbare_metal-803bef466edead4e.rlib" "/opt/rustwide/target/release/build/num-traits/1c84cd41d59ec03d/out/libnum_traits-1c84cd41d59ec03d.rlib" "/opt/rustwide/target/release/build/embassy-time-queue-utils/6958b3fc910d89a1/out/libembassy_time_queue_utils-6958b3fc910d89a1.rlib" "/opt/rustwide/target/release/build/embassy-executor/0103fdfe54fdfe15/out/libembassy_executor-0103fdfe54fdfe15.rlib" "/opt/rustwide/target/release/build/embassy-time-driver/63d195be225b8fe9/out/libembassy_time_driver-63d195be225b8fe9.rlib" "/opt/rustwide/target/release/build/embassy-sync/4318a5314032571c/out/libembassy_sync-4318a5314032571c.rlib" "/opt/rustwide/target/release/build/embedded-io-async/10730e0914be65d7/out/libembedded_io_async-10730e0914be65d7.rlib" "/opt/rustwide/target/release/build/embedded-io/07cd5e48563d0b27/out/libembedded_io-07cd5e48563d0b27.rlib" "/opt/rustwide/target/release/build/futures-util/996d828a1ebb6841/out/libfutures_util-996d828a1ebb6841.rlib" "/opt/rustwide/target/release/build/pin-project-lite/e58cf1bfdbc0be0b/out/libpin_project_lite-e58cf1bfdbc0be0b.rlib" "/opt/rustwide/target/release/build/futures-sink/10d4bca9590c0aff/out/libfutures_sink-10d4bca9590c0aff.rlib" "/opt/rustwide/target/release/build/futures-task/d4e2c168f4a7fe5c/out/libfutures_task-d4e2c168f4a7fe5c.rlib" "/opt/rustwide/target/release/build/pin-utils/bd5b26767cd4a338/out/libpin_utils-bd5b26767cd4a338.rlib" "/opt/rustwide/target/release/build/futures-core/147e565e96bfa1db/out/libfutures_core-147e565e96bfa1db.rlib" "/opt/rustwide/target/release/build/heapless/bfde3e0c79cce4ae/out/libheapless-bfde3e0c79cce4ae.rlib" "/opt/rustwide/target/release/build/defmt/d770169138ce50ae/out/libdefmt-d770169138ce50ae.rlib" "/opt/rustwide/target/release/build/defmt/c9d2b7e3e0eae9b6/out/libdefmt-c9d2b7e3e0eae9b6.rlib" "/opt/rustwide/target/release/build/bitflags/68973b8086863992/out/libbitflags-68973b8086863992.rlib" "/opt/rustwide/target/release/build/hash32/15ff014dd320e13a/out/libhash32-15ff014dd320e13a.rlib" "/opt/rustwide/target/release/build/byteorder/d0fb3ad4741450f8/out/libbyteorder-d0fb3ad4741450f8.rlib" "/opt/rustwide/target/release/build/critical-section/c30aeed793fb294f/out/libcritical_section-c30aeed793fb294f.rlib" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib/{libcore-*,libcompiler_builtins-*}.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-L" "/opt/rustwide/target/release/build/microbit-bsp/3e3747ff22574d8c/out/rustc2OANCT/raw-dylibs" "-B<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/bin/gcc-ld" "-fuse-ld=lld" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/target/release/build/defmt/fa8ce51ee4b5dd74/out" "-L" "/opt/rustwide/target/release/build/cortex-m-rt/b3546b447f468d83/out" "-L" "/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/nrf-pac-0.1.0/src/chips/nrf52833" "-L" "<sysroot>/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/release/build/microbit-bsp/3e3747ff22574d8c/out/microbit_bsp-3e3747ff22574d8c" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-Wl,-O1" "-Wl,--strip-debug" "-nodefaultlibs"
[INFO] [stdout]   = note: some arguments are omitted. use `--verbose` to show all linker arguments
[INFO] [stdout]   = note: rust-lld: error: undefined symbol: main
[INFO] [stdout]           >>> referenced by /usr/lib/gcc/x86_64-linux-gnu/15/../../../x86_64-linux-gnu/Scrt1.o:(_start)
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `microbit-bsp` (lib test) due to 1 previous error
[INFO] [stderr] warning: unused dependency `futures`
[INFO] [stderr]   --> Cargo.toml:22:15
[INFO] [stderr]    |
[INFO] [stderr] 22 | [dependencies.futures]
[INFO] [stderr]    |               ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `futures`
[INFO] [stderr] warning: `microbit-bsp` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "inspect" "20bfb2a1689d958b317a162989a9bbc0cff0c41bc51fba89e922b725d2a9d757", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20bfb2a1689d958b317a162989a9bbc0cff0c41bc51fba89e922b725d2a9d757", kill_on_drop: false }`
[INFO] [stdout] 20bfb2a1689d958b317a162989a9bbc0cff0c41bc51fba89e922b725d2a9d757
