[INFO] cloning repository https://github.com/boylede/five_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/boylede/five_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboylede%2Ffive_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboylede%2Ffive_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6bd873b4728d144f92416b4d7c5757337ebc64eb
[INFO] documenting boylede/five_os against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fboylede%2Ffive_os" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/boylede/five_os on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-13/source/.cargo/config
[INFO] started tweaking git repo https://github.com/boylede/five_os
[INFO] finished tweaking git repo https://github.com/boylede/five_os
[INFO] tweaked toml for git repo https://github.com/boylede/five_os written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/boylede/five_os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfacf3825800ba8a6a744c0c85c0756332d4284531c0c39d5324db14211fb3f6
[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" "dfacf3825800ba8a6a744c0c85c0756332d4284531c0c39d5324db14211fb3f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfacf3825800ba8a6a744c0c85c0756332d4284531c0c39d5324db14211fb3f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfacf3825800ba8a6a744c0c85c0756332d4284531c0c39d5324db14211fb3f6", kill_on_drop: false }`
[INFO] [stdout] dfacf3825800ba8a6a744c0c85c0756332d4284531c0c39d5324db14211fb3f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67d6b7c5dd00ac88b9b397b24b2282bd38eb382afb1548ccc8ced23dfdd56a75
[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" "67d6b7c5dd00ac88b9b397b24b2282bd38eb382afb1548ccc8ced23dfdd56a75", 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] [stderr]    Compiling five_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: cc: warning: ./src/assembly/boot.riscv: linker input file unused because linking not done
[INFO] [stderr] warning: cc: warning: ./src/assembly/trap.riscv: linker input file unused because linking not done
[INFO] [stderr] warning: cc: warning: ./src/assembly/cpu.riscv: linker input file unused because linking not done
[INFO] [stderr] warning: ar: /opt/rustwide/target/debug/build/five_os-b7c6609f43994ff7/out/./src/assembly/boot.o: No such file or directory
[INFO] [stderr] 
[INFO] [stderr] error: failed to run custom build command for `five_os v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/five_os-ed994b17b4f71bf4/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rustc-link-search=linker/
[INFO] [stderr]   TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr]   OPT_LEVEL = Some("0")
[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 = None
[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 = None
[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: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-o" "/opt/rustwide/target/debug/build/five_os-b7c6609f43994ff7/out/./src/assembly/boot.o" "-c" "./src/assembly/boot.riscv"
[INFO] [stderr]   cargo:warning=cc: warning: ./src/assembly/boot.riscv: linker input file unused because linking not done
[INFO] [stderr]   exit code: 0
[INFO] [stderr]   running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-o" "/opt/rustwide/target/debug/build/five_os-b7c6609f43994ff7/out/./src/assembly/trap.o" "-c" "./src/assembly/trap.riscv"
[INFO] [stderr]   cargo:warning=cc: warning: ./src/assembly/trap.riscv: linker input file unused because linking not done
[INFO] [stderr]   exit code: 0
[INFO] [stderr]   running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-o" "/opt/rustwide/target/debug/build/five_os-b7c6609f43994ff7/out/./src/assembly/cpu.o" "-c" "./src/assembly/cpu.riscv"
[INFO] [stderr]   cargo:warning=cc: warning: ./src/assembly/cpu.riscv: linker input file unused because linking not done
[INFO] [stderr]   exit code: 0
[INFO] [stderr]   AR_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   AR_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_AR = None
[INFO] [stderr]   AR = None
[INFO] [stderr]   running: "ar" "crs" "/opt/rustwide/target/debug/build/five_os-b7c6609f43994ff7/out/libasm.a" "/opt/rustwide/target/debug/build/five_os-b7c6609f43994ff7/out/./src/assembly/boot.o" "/opt/rustwide/target/debug/build/five_os-b7c6609f43994ff7/out/./src/assembly/trap.o" "/opt/rustwide/target/debug/build/five_os-b7c6609f43994ff7/out/./src/assembly/cpu.o"
[INFO] [stderr]   cargo:warning=ar: /opt/rustwide/target/debug/build/five_os-b7c6609f43994ff7/out/./src/assembly/boot.o: No such file or directory
[INFO] [stderr]   exit code: 1
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] [stderr]   error occurred: Command "ar" "crs" "/opt/rustwide/target/debug/build/five_os-b7c6609f43994ff7/out/libasm.a" "/opt/rustwide/target/debug/build/five_os-b7c6609f43994ff7/out/./src/assembly/boot.o" "/opt/rustwide/target/debug/build/five_os-b7c6609f43994ff7/out/./src/assembly/trap.o" "/opt/rustwide/target/debug/build/five_os-b7c6609f43994ff7/out/./src/assembly/cpu.o" with args "ar" did not execute successfully (status code exit code: 1).
[INFO] [stderr] 
[INFO] [stderr] 
[INFO] running `Command { std: "docker" "inspect" "67d6b7c5dd00ac88b9b397b24b2282bd38eb382afb1548ccc8ced23dfdd56a75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67d6b7c5dd00ac88b9b397b24b2282bd38eb382afb1548ccc8ced23dfdd56a75", kill_on_drop: false }`
[INFO] [stdout] 67d6b7c5dd00ac88b9b397b24b2282bd38eb382afb1548ccc8ced23dfdd56a75