[INFO] cloning repository https://github.com/Akshay-Srivatsan/cs340lx-libpi-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Akshay-Srivatsan/cs340lx-libpi-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkshay-Srivatsan%2Fcs340lx-libpi-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkshay-Srivatsan%2Fcs340lx-libpi-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f540f8470fa4676d48dd38575dbbd6684ccb8ddc
[INFO] checking Akshay-Srivatsan/cs340lx-libpi-rs against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkshay-Srivatsan%2Fcs340lx-libpi-rs" "/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/Akshay-Srivatsan/cs340lx-libpi-rs on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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/Akshay-Srivatsan/cs340lx-libpi-rs
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/Akshay-Srivatsan/cs340lx-libpi-rs
[INFO] tweaked toml for git repo https://github.com/Akshay-Srivatsan/cs340lx-libpi-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Akshay-Srivatsan/cs340lx-libpi-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8bd6c1e75420057472b45d116211603617c79fdedbf63f9a3974d0c02e23c431
[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" "8bd6c1e75420057472b45d116211603617c79fdedbf63f9a3974d0c02e23c431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bd6c1e75420057472b45d116211603617c79fdedbf63f9a3974d0c02e23c431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bd6c1e75420057472b45d116211603617c79fdedbf63f9a3974d0c02e23c431", kill_on_drop: false }`
[INFO] [stdout] 8bd6c1e75420057472b45d116211603617c79fdedbf63f9a3974d0c02e23c431
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5e74382a14e9df1914bd58e79d0dd0329b829fc3ee0d78965dc3ad73b2aaba3
[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" "c5e74382a14e9df1914bd58e79d0dd0329b829fc3ee0d78965dc3ad73b2aaba3", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.56
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]    Compiling pi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: arm-none-eabi-gcc: error: unrecognized command line option '-m64'
[INFO] [stderr] 
[INFO] [stderr] error: failed to run custom build command for `pi v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/pi-740b4eda3a06cea1/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rustc-link-search=/opt/rustwide/target/debug/build/pi-dc33953209d742bb/out
[INFO] [stderr]   cargo:rerun-if-changed=link.x
[INFO] [stderr]   TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr]   OPT_LEVEL = Some("z")
[INFO] [stderr]   HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr]   CC_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CC_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_CC = None
[INFO] [stderr]   CC = Some("arm-none-eabi-gcc")
[INFO] [stderr]   CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_CFLAGS = None
[INFO] [stderr]   CFLAGS = Some("-nostdlib -nostartfiles -ffreestanding -mcpu=arm1176jzf-s -march=armv6zk -mfloat-abi=hard")
[INFO] [stderr]   CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr]   DEBUG = Some("true")
[INFO] [stderr]   CARGO_CFG_TARGET_FEATURE = Some("fxsr,sse,sse2")
[INFO] [stderr]   running: "arm-none-eabi-gcc" "-Os" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-nostdlib" "-nostartfiles" "-ffreestanding" "-mcpu=arm1176jzf-s" "-march=armv6zk" "-mfloat-abi=hard" "-o" "/opt/rustwide/target/debug/build/pi-dc33953209d742bb/out/rt/start.o" "-c" "rt/start.S"
[INFO] [stderr]   cargo:warning=arm-none-eabi-gcc: error: unrecognized command line option '-m64'
[INFO] [stderr]   exit code: 1
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   error occurred: Command "arm-none-eabi-gcc" "-Os" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-nostdlib" "-nostartfiles" "-ffreestanding" "-mcpu=arm1176jzf-s" "-march=armv6zk" "-mfloat-abi=hard" "-o" "/opt/rustwide/target/debug/build/pi-dc33953209d742bb/out/rt/start.o" "-c" "rt/start.S" with args "arm-none-eabi-gcc" did not execute successfully (status code exit code: 1).
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "c5e74382a14e9df1914bd58e79d0dd0329b829fc3ee0d78965dc3ad73b2aaba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5e74382a14e9df1914bd58e79d0dd0329b829fc3ee0d78965dc3ad73b2aaba3", kill_on_drop: false }`
[INFO] [stdout] c5e74382a14e9df1914bd58e79d0dd0329b829fc3ee0d78965dc3ad73b2aaba3