[INFO] cloning repository https://github.com/tasosxak/ffi_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tasosxak/ffi_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftasosxak%2Fffi_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftasosxak%2Fffi_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ee66378fb27e46631512586324a5c598890497f
[INFO] testing tasosxak/ffi_rust against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftasosxak%2Fffi_rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tasosxak/ffi_rust on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/tasosxak/ffi_rust
[INFO] finished tweaking git repo https://github.com/tasosxak/ffi_rust
[INFO] tweaked toml for git repo https://github.com/tasosxak/ffi_rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/tasosxak/ffi_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c97c92bfe5474b19e448d71256465aaabaffd10727a4c0a15298db69933f46be
[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" "c97c92bfe5474b19e448d71256465aaabaffd10727a4c0a15298db69933f46be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c97c92bfe5474b19e448d71256465aaabaffd10727a4c0a15298db69933f46be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c97c92bfe5474b19e448d71256465aaabaffd10727a4c0a15298db69933f46be", kill_on_drop: false }`
[INFO] [stdout] c97c92bfe5474b19e448d71256465aaabaffd10727a4c0a15298db69933f46be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3a14ab3c5be4423c58a7cb020c8cc5bc88b3f01aab1a353491f04c42510b8bf
[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" "f3a14ab3c5be4423c58a7cb020c8cc5bc88b3f01aab1a353491f04c42510b8bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cortex-m v0.6.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling vcell v0.1.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling cortex-m-rt v0.6.13
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling freertos-rust v0.1.2 (https://github.com/tasosxak/FreeRTOS-rust#e3ed1da7)
[INFO] [stderr]    Compiling stm32l4 v0.8.0
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]    Compiling panic-halt v0.2.0
[INFO] [stderr]    Compiling volatile-register v0.2.0
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling embedded-hal v0.2.4
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling freertos-cargo-build v0.1.1 (https://github.com/tasosxak/FreeRTOS-rust#e3ed1da7)
[INFO] [stderr]    Compiling as-slice v0.1.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling ffi_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `target_env`
[INFO] [stdout]   --> build.rs:17:13
[INFO] [stdout]    |
[INFO] [stdout] 17 |         let target_env = env::var("CARGO_CFG_TARGET_ENV").unwrap_or_default();
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_env`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_family`
[INFO] [stdout]   --> build.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let target_family = env::var("CARGO_CFG_TARGET_FAMILY").unwrap_or_default();
[INFO] [stdout]    |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_family`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: CARGO=/opt/rustwide/rustup-home/toolchains/5d5ff84130da0d74c6ece368dbe821d8f83fa526/bin/cargo
[INFO] [stderr] warning: CARGO_CFG_PANIC=unwind
[INFO] [stderr] warning: CARGO_CFG_TARGET_ARCH=x86_64
[INFO] [stderr] warning: CARGO_CFG_TARGET_ENDIAN=little
[INFO] [stderr] warning: CARGO_CFG_TARGET_ENV=gnu
[INFO] [stderr] warning: CARGO_CFG_TARGET_FAMILY=unix
[INFO] [stderr] warning: CARGO_CFG_TARGET_FEATURE=fxsr,sse,sse2
[INFO] [stderr] warning: CARGO_CFG_TARGET_HAS_ATOMIC=16,32,64,8,ptr
[INFO] [stderr] warning: CARGO_CFG_TARGET_HAS_ATOMIC_EQUAL_ALIGNMENT=16,32,64,8,ptr
[INFO] [stderr] warning: CARGO_CFG_TARGET_HAS_ATOMIC_LOAD_STORE=16,32,64,8,ptr
[INFO] [stderr] warning: CARGO_CFG_TARGET_OS=linux
[INFO] [stderr] warning: CARGO_CFG_TARGET_POINTER_WIDTH=64
[INFO] [stderr] warning: CARGO_CFG_TARGET_THREAD_LOCAL=
[INFO] [stderr] warning: CARGO_CFG_TARGET_VENDOR=unknown
[INFO] [stderr] warning: CARGO_CFG_UNIX=
[INFO] [stderr] warning: CARGO_HOME=/opt/rustwide/cargo-home
[INFO] [stderr] warning: CARGO_INCREMENTAL=0
[INFO] [stderr] warning: CARGO_MAKEFLAGS=--jobserver-fds=5,6 -j --jobserver-auth=5,6 -j
[INFO] [stderr] warning: CARGO_MANIFEST_DIR=/opt/rustwide/workdir
[INFO] [stderr] warning: CARGO_PKG_AUTHORS=tasosxak <tasosxak@hotmail.com>
[INFO] [stderr] warning: CARGO_PKG_DESCRIPTION=
[INFO] [stderr] warning: CARGO_PKG_HOMEPAGE=
[INFO] [stderr] warning: CARGO_PKG_LICENSE=
[INFO] [stderr] warning: CARGO_PKG_LICENSE_FILE=
[INFO] [stderr] warning: CARGO_PKG_NAME=ffi_rust
[INFO] [stderr] warning: CARGO_PKG_REPOSITORY=
[INFO] [stderr] warning: CARGO_PKG_VERSION=0.1.0
[INFO] [stderr] warning: CARGO_PKG_VERSION_MAJOR=0
[INFO] [stderr] warning: CARGO_PKG_VERSION_MINOR=1
[INFO] [stderr] warning: CARGO_PKG_VERSION_PATCH=0
[INFO] [stderr] warning: CARGO_PKG_VERSION_PRE=
[INFO] [stderr] warning: CARGO_TARGET_DIR=/opt/rustwide/target
[INFO] [stderr] warning: HOST=x86_64-unknown-linux-gnu
[INFO] [stderr] warning: OUT_DIR=/opt/rustwide/target/debug/build/ffi_rust-1dee1bd94eaf6270/out
[INFO] [stderr] warning: TARGET=x86_64-unknown-linux-gnu
[INFO] [stderr]    Compiling aligned v0.3.4
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]    Compiling stm32l4xx-hal v0.5.0
[INFO] [stdout] warning: unused import: `cortex_m::asm`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use cortex_m::asm;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stm32l4xx_hal::hal::digital::v2::*`
[INFO] [stdout]   --> src/main.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | use stm32l4xx_hal::hal::digital::v2::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: CARGO=/opt/rustwide/rustup-home/toolchains/5d5ff84130da0d74c6ece368dbe821d8f83fa526/bin/cargo
[INFO] [stderr] warning: CARGO_CFG_PANIC=unwind
[INFO] [stderr] warning: CARGO_CFG_TARGET_ARCH=x86_64
[INFO] [stderr] warning: CARGO_CFG_TARGET_ENDIAN=little
[INFO] [stderr] warning: CARGO_CFG_TARGET_ENV=gnu
[INFO] [stderr] warning: CARGO_CFG_TARGET_FAMILY=unix
[INFO] [stderr] warning: CARGO_CFG_TARGET_FEATURE=fxsr,sse,sse2
[INFO] [stderr] warning: CARGO_CFG_TARGET_HAS_ATOMIC=16,32,64,8,ptr
[INFO] [stderr] warning: CARGO_CFG_TARGET_HAS_ATOMIC_EQUAL_ALIGNMENT=16,32,64,8,ptr
[INFO] [stderr] warning: CARGO_CFG_TARGET_HAS_ATOMIC_LOAD_STORE=16,32,64,8,ptr
[INFO] [stderr] warning: CARGO_CFG_TARGET_OS=linux
[INFO] [stderr] warning: CARGO_CFG_TARGET_POINTER_WIDTH=64
[INFO] [stderr] warning: CARGO_CFG_TARGET_THREAD_LOCAL=
[INFO] [stderr] warning: CARGO_CFG_TARGET_VENDOR=unknown
[INFO] [stderr] warning: CARGO_CFG_UNIX=
[INFO] [stderr] warning: CARGO_HOME=/opt/rustwide/cargo-home
[INFO] [stderr] warning: CARGO_INCREMENTAL=0
[INFO] [stderr] warning: CARGO_MAKEFLAGS=--jobserver-fds=5,6 -j --jobserver-auth=5,6 -j
[INFO] [stderr] warning: CARGO_MANIFEST_DIR=/opt/rustwide/workdir
[INFO] [stderr] warning: CARGO_PKG_AUTHORS=tasosxak <tasosxak@hotmail.com>
[INFO] [stderr] warning: CARGO_PKG_DESCRIPTION=
[INFO] [stderr] warning: CARGO_PKG_HOMEPAGE=
[INFO] [stderr] warning: CARGO_PKG_LICENSE=
[INFO] [stderr] warning: CARGO_PKG_LICENSE_FILE=
[INFO] [stderr] warning: CARGO_PKG_NAME=ffi_rust
[INFO] [stderr] warning: CARGO_PKG_REPOSITORY=
[INFO] [stderr] warning: CARGO_PKG_VERSION=0.1.0
[INFO] [stderr] warning: CARGO_PKG_VERSION_MAJOR=0
[INFO] [stderr] warning: CARGO_PKG_VERSION_MINOR=1
[INFO] [stderr] warning: CARGO_PKG_VERSION_PATCH=0
[INFO] [stderr] warning: CARGO_PKG_VERSION_PRE=
[INFO] [stderr] warning: CARGO_TARGET_DIR=/opt/rustwide/target
[INFO] [stderr] warning: HOST=x86_64-unknown-linux-gnu
[INFO] [stderr] warning: OUT_DIR=/opt/rustwide/target/debug/build/ffi_rust-1dee1bd94eaf6270/out
[INFO] [stderr] warning: TARGET=x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `ffi_rust`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f3a14ab3c5be4423c58a7cb020c8cc5bc88b3f01aab1a353491f04c42510b8bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3a14ab3c5be4423c58a7cb020c8cc5bc88b3f01aab1a353491f04c42510b8bf", kill_on_drop: false }`
[INFO] [stdout] f3a14ab3c5be4423c58a7cb020c8cc5bc88b3f01aab1a353491f04c42510b8bf