[INFO] cloning repository ginryuoku/praxis-os
[INFO] running `"git" "clone" "--bare" "git://github.com/ginryuoku/praxis-os.git" "work/cache/sources/gh/ginryuoku/praxis-os"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/ginryuoku/praxis-os'...
[INFO] running `"git" "clone" "work/cache/sources/gh/ginryuoku/praxis-os" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/ginryuoku/praxis-os"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/ginryuoku/praxis-os'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ginryuoku/praxis-os" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/ginryuoku/praxis-os"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/ginryuoku/praxis-os'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 74994400d3e0b048b55942a5f68d43a6c5a8dfbc
[INFO] sha for GitHub repo ginryuoku/praxis-os: 74994400d3e0b048b55942a5f68d43a6c5a8dfbc
[INFO] validating manifest of ginryuoku/praxis-os on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ginryuoku/praxis-os on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ginryuoku/praxis-os
[INFO] finished frobbing ginryuoku/praxis-os
[INFO] frobbed toml for ginryuoku/praxis-os written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/ginryuoku/praxis-os/Cargo.toml
[INFO] started frobbing ginryuoku/praxis-os
[INFO] finished frobbing ginryuoku/praxis-os
[INFO] frobbed toml for ginryuoku/praxis-os written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/ginryuoku/praxis-os/Cargo.toml
[INFO] crate ginryuoku/praxis-os already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded riscv-rt-macros v0.1.5
[INFO] [stderr]   Downloaded riscv-rt v0.5.0
[INFO] [stderr]   Downloaded riscv v0.5.2
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking ginryuoku/praxis-os against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-7/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/ginryuoku/praxis-os:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1944b93adb6a3d898d3e96d2ff8e2228a6ce08a680938c5d57ef31e2aaad32cf
[INFO] running `"docker" "start" "-a" "1944b93adb6a3d898d3e96d2ff8e2228a6ce08a680938c5d57ef31e2aaad32cf"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling riscv v0.5.2
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]    Compiling riscv-rt v0.5.0
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling praxis-os v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0463]: can't find crate for `core`
[INFO] [stderr]   |
[INFO] [stderr]   = note: the `riscv64gc-unknown-none-elf` target may not be installed
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `bit_field`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0463]: can't find crate for `core`
[INFO] [stderr]   |
[INFO] [stderr]   = note: the `riscv64gc-unknown-none-elf` target may not be installed
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0463`.
[INFO] [stderr] error: Could not compile `r0`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "1944b93adb6a3d898d3e96d2ff8e2228a6ce08a680938c5d57ef31e2aaad32cf"`
[INFO] running `"docker" "rm" "-f" "1944b93adb6a3d898d3e96d2ff8e2228a6ce08a680938c5d57ef31e2aaad32cf"`
[INFO] [stdout] 1944b93adb6a3d898d3e96d2ff8e2228a6ce08a680938c5d57ef31e2aaad32cf