[INFO] updating cached repository flandre-os/kernel
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/flandre-os/kernel
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/flandre-os/kernel" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/flandre-os/kernel"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/flandre-os/kernel'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/flandre-os/kernel" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/flandre-os/kernel"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/flandre-os/kernel'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7f8a275c1f30d42306db85d7f331017cea125c93
[INFO] sha for GitHub repo flandre-os/kernel: 7f8a275c1f30d42306db85d7f331017cea125c93
[INFO] validating manifest of flandre-os/kernel on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of flandre-os/kernel on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing flandre-os/kernel
[INFO] finished frobbing flandre-os/kernel
[INFO] frobbed toml for flandre-os/kernel written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/flandre-os/kernel/Cargo.toml
[INFO] started frobbing flandre-os/kernel
[INFO] finished frobbing flandre-os/kernel
[INFO] frobbed toml for flandre-os/kernel written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/flandre-os/kernel/Cargo.toml
[INFO] crate flandre-os/kernel already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking flandre-os/kernel against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-3/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/flandre-os/kernel:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 208d477e4c205537652726f1ad9a1fc917563905c5dce95dc49c45e04975de0b
[INFO] running `"docker" "start" "-a" "208d477e4c205537652726f1ad9a1fc917563905c5dce95dc49c45e04975de0b"`
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling llvm-tools v0.1.1
[INFO] [stderr]     Checking ux v0.1.3
[INFO] [stderr]     Checking zero v0.1.2
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]     Checking usize_conversions v0.2.0
[INFO] [stderr]     Checking os_bootinfo v0.2.1
[INFO] [stderr]     Checking font8x8 v0.2.4
[INFO] [stderr]     Checking array-init v0.0.4
[INFO] [stderr]     Checking xmas-elf v0.6.2
[INFO] [stderr]    Compiling getopts v0.2.18
[INFO] [stderr]    Compiling bootloader v0.6.0
[INFO] [stderr]    Compiling pulldown-cmark v0.0.3
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling skeptic v0.5.0
[INFO] [stderr]    Compiling fixedvec v0.2.3
[INFO] [stderr]     Checking x86_64 v0.3.6
[INFO] [stderr]     Checking flandre_os_kernel v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: language item required, but not found: `eh_personality`
[INFO] [stderr] 
[INFO] [stderr] error[E0152]: duplicate lang item found: `panic_impl`.
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `flandre_os_kernel`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr]   --> src/main.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | / fn panic(_info: &PanicInfo) -> ! {
[INFO] [stderr] 27 | |     halt()
[INFO] [stderr] 28 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: first defined in crate `std`.
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0152`.
[INFO] [stderr] error: Could not compile `flandre_os_kernel`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "208d477e4c205537652726f1ad9a1fc917563905c5dce95dc49c45e04975de0b"`
[INFO] running `"docker" "rm" "-f" "208d477e4c205537652726f1ad9a1fc917563905c5dce95dc49c45e04975de0b"`
[INFO] [stdout] 208d477e4c205537652726f1ad9a1fc917563905c5dce95dc49c45e04975de0b