[INFO] cloning repository https://github.com/bentwire/stm32f072-usb-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bentwire/stm32f072-usb-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbentwire%2Fstm32f072-usb-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbentwire%2Fstm32f072-usb-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1a76e98b6408fd1d5b635020ef4552cffa45dd4f
[INFO] testing bentwire/stm32f072-usb-test against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbentwire%2Fstm32f072-usb-test" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bentwire/stm32f072-usb-test on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking git repo https://github.com/bentwire/stm32f072-usb-test
[INFO] finished tweaking git repo https://github.com/bentwire/stm32f072-usb-test
[INFO] tweaked toml for git repo https://github.com/bentwire/stm32f072-usb-test written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/bentwire/stm32f072-usb-test already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12379a69dd65e936fc2278181ec788aa5e614057052dd81604d74fbd5cb9993b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "12379a69dd65e936fc2278181ec788aa5e614057052dd81604d74fbd5cb9993b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12379a69dd65e936fc2278181ec788aa5e614057052dd81604d74fbd5cb9993b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12379a69dd65e936fc2278181ec788aa5e614057052dd81604d74fbd5cb9993b", kill_on_drop: false }`
[INFO] [stdout] 12379a69dd65e936fc2278181ec788aa5e614057052dd81604d74fbd5cb9993b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=forbid" "-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12d64cef0b99a0a58194910415e33915c2b36e4e9430df8ee04bbf0b7401eaba
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "12d64cef0b99a0a58194910415e33915c2b36e4e9430df8ee04bbf0b7401eaba", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.35
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling cortex-m v0.6.0
[INFO] [stderr]    Compiling vcell v0.1.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling cortex-m-rt v0.6.8
[INFO] [stderr]    Compiling heapless v0.4.4
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling stm32f0 v0.7.1
[INFO] [stderr]    Compiling nb v0.1.2
[INFO] [stderr]    Compiling cortex-m v0.5.10
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.3
[INFO] [stderr]    Compiling aligned v0.2.0
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling cortex-m-rtfm v0.4.3
[INFO] [stderr]    Compiling usb-device v0.2.1
[INFO] [stderr]    Compiling panic-halt v0.2.0
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling embedded-hal v0.2.3
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling hash32 v0.1.0
[INFO] [stderr]    Compiling bare-metal v0.2.4
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling generic-array v0.12.0
[INFO] [stderr]    Compiling generic-array v0.11.1
[INFO] [stderr]    Compiling as-slice v0.1.0
[INFO] [stderr]    Compiling aligned v0.3.1
[INFO] [stderr]    Compiling panic-semihosting v0.5.2
[INFO] [stderr]    Compiling usbd-serial v0.1.0 (https://github.com/mvirkkunen/usbd-serial#cb18cef7)
[INFO] [stderr]    Compiling digital-filter v0.1.0 (https://github.com/bentwire/digital-filter.git#47339eff)
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.5
[INFO] [stderr]    Compiling owned-singleton-macros v0.1.0
[INFO] [stderr]    Compiling cortex-m-rtfm-macros v0.4.3
[INFO] [stderr]    Compiling owned-singleton v0.1.0
[INFO] [stderr]    Compiling stm32f0xx-hal v0.14.1
[INFO] [stderr]    Compiling stm32-usbd v0.2.1
[INFO] [stderr]    Compiling stm32f072-usb-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `dac`
[INFO] [stdout]   --> src/main.rs:19:26
[INFO] [stdout]    |
[INFO] [stdout] 19 | use stm32f0::stm32f0x2::{dac, Interrupt};
[INFO] [stdout]    |                          ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `digital_filter::DigitalFilter`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use digital_filter::DigitalFilter;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Write`
[INFO] [stdout]   --> src/main.rs:32:27
[INFO] [stdout]    |
[INFO] [stdout] 32 | use core::{cell::RefCell, fmt::Write, ops::DerefMut};
[INFO] [stdout]    |                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-Wl,--as-needed" "-L" "/opt/rustwide/rustup-home/toolchains/99e3aef02079e9c10583638520cd0c134dc3a01d/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/cortex-m-rt-8b62a9abc3e49fb3/out" "-L" "/opt/rustwide/target/debug/build/stm32f0-6e150141fa288be4/out" "-L" "/opt/rustwide/rustup-home/toolchains/99e3aef02079e9c10583638520cd0c134dc3a01d/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libstm32_usbd-fe7c3541114a25c5.rlib" "/opt/rustwide/target/debug/deps/libcortex_m-e007020630583dfc.rlib" "/opt/rustwide/target/debug/deps/libaligned-475b82b024a64f7c.rlib" "/opt/rustwide/target/debug/deps/libdigital_filter-50804997cdc3c020.rlib" "/opt/rustwide/target/debug/deps/libheapless-1ce8192a0ad1bf6e.rlib" "/opt/rustwide/target/debug/deps/libhash32-bd2d612fc62f6ed8.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-704ab4532d3fd0a1.rlib" "/opt/rustwide/target/debug/deps/libgeneric_array-e90f4ae780fa22ef.rlib" "/opt/rustwide/target/debug/deps/libstm32f0xx_hal-3551fe7cb7bb0b82.rlib" "/opt/rustwide/target/debug/deps/libcast-2624f5aab52a5be5.rlib" "/opt/rustwide/target/debug/deps/libembedded_hal-db53779275948ff4.rlib" "/opt/rustwide/target/debug/deps/libvoid-c7acbffe5b4796b1.rlib" "/opt/rustwide/target/debug/deps/libnb-b878ea52ec5f62ce.rlib" "/opt/rustwide/target/debug/deps/libusbd_serial-47034152fccc8b36.rlib" "/opt/rustwide/target/debug/deps/libusb_device-51e7d6f9c9c1d765.rlib" "/opt/rustwide/target/debug/deps/libstm32f0-e512fe5b686b225c.rlib" "/opt/rustwide/target/debug/deps/libcortex_m_rt-53415bd1bbd77e3f.rlib" "/opt/rustwide/target/debug/deps/libr0-a876686ae3a95d6d.rlib" "-Wl,--start-group" "/opt/rustwide/target/debug/deps/libpanic_semihosting-8c200042ac09a5c9.rlib" "/opt/rustwide/target/debug/deps/libcortex_m_semihosting-29675ebc6d4b8119.rlib" "/opt/rustwide/target/debug/deps/libcortex_m-e51a7da7b5074237.rlib" "/opt/rustwide/target/debug/deps/libvolatile_register-123c4b54cdf54ce9.rlib" "/opt/rustwide/target/debug/deps/libvcell-d81c514acb698620.rlib" "/opt/rustwide/target/debug/deps/libbare_metal-f5a97cd78e6add6c.rlib" "/opt/rustwide/target/debug/deps/libaligned-a17759c2bab3f038.rlib" "/opt/rustwide/target/debug/deps/libas_slice-fe9fd780ac3fc8a4.rlib" "/opt/rustwide/target/debug/deps/libstable_deref_trait-98a9c2f6cdf62175.rlib" "/opt/rustwide/target/debug/deps/libgeneric_array-84b2ddc1c2175111.rlib" "/opt/rustwide/target/debug/deps/libtypenum-5f72cb00feaccdad.rlib" "/opt/rustwide/rustup-home/toolchains/99e3aef02079e9c10583638520cd0c134dc3a01d/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-a1fd7734706d5518.rlib" "/opt/rustwide/rustup-home/toolchains/99e3aef02079e9c10583638520cd0c134dc3a01d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-c8ded1707ad10767.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/99e3aef02079e9c10583638520cd0c134dc3a01d/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-1eec8756baa5bc24.rlib" "-Wl,-Bdynamic"
[INFO] [stdout]   = note: /usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/9/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
[INFO] [stdout]           (.text+0x16): undefined reference to `__libc_csu_fini'
[INFO] [stdout]           /usr/bin/ld: (.text+0x1d): undefined reference to `__libc_csu_init'
[INFO] [stdout]           /usr/bin/ld: (.text+0x2a): undefined reference to `__libc_start_main'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.0.rcgu.o: in function `usb_device::device::UsbDevice<B>::build':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/usb-device-0.2.1/src/device.rs:82: undefined reference to `memcpy'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/usb-device-0.2.1/src/device.rs:82: undefined reference to `memcpy'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.11.rcgu.o: in function `stm32f0xx_hal::rcc::CFGR::sysclk':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/stm32f0xx-hal-0.14.1/src/rcc.rs:264: undefined reference to `memcpy'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.14.rcgu.o: in function `usb_device::bus::UsbBusAllocator<B>::new':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/usb-device-0.2.1/src/bus.rs:150: undefined reference to `memcpy'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/usb-device-0.2.1/src/bus.rs:149: undefined reference to `memcpy'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/stm32f072_usb_test-75002a7c75b58359.stm32f072_usb_test.eytlqx9h-cgu.15.rcgu.o:/opt/rustwide/workdir/src/main.rs:86: more undefined references to `memcpy' follow
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libcortex_m_semihosting-29675ebc6d4b8119.rlib(cortex_m_semihosting-29675ebc6d4b8119.cortex_m_semihosting.87lqfg0q-cgu.10.rcgu.o): in function `core::fmt::Write::write_char':
[INFO] [stdout]           /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:161: undefined reference to `memset'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libcortex_m_semihosting-29675ebc6d4b8119.rlib(cortex_m_semihosting-29675ebc6d4b8119.cortex_m_semihosting.87lqfg0q-cgu.10.rcgu.o): in function `core::fmt::Write::write_fmt':
[INFO] [stdout]           /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:184: undefined reference to `memcpy'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/deps/libcortex_m_semihosting-29675ebc6d4b8119.rlib(cortex_m_semihosting-29675ebc6d4b8119.cortex_m_semihosting.87lqfg0q-cgu.10.rcgu.o): in function `<&mut W as core::fmt::Write>::write_fmt':
[INFO] [stdout]           /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:199: undefined reference to `memcpy'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `stm32f072-usb-test`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "12d64cef0b99a0a58194910415e33915c2b36e4e9430df8ee04bbf0b7401eaba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12d64cef0b99a0a58194910415e33915c2b36e4e9430df8ee04bbf0b7401eaba", kill_on_drop: false }`
[INFO] [stdout] 12d64cef0b99a0a58194910415e33915c2b36e4e9430df8ee04bbf0b7401eaba