[INFO] updating cached repository https://github.com/aadit0402/self-learning-os-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ad9dffa97da4f6c6307cf89c25497ceb0e724fba
[INFO] checking aadit0402/self-learning-os-rust against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faadit0402%2Fself-learning-os-rust" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aadit0402/self-learning-os-rust on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/aadit0402/self-learning-os-rust
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/aadit0402/self-learning-os-rust
[INFO] tweaked toml for git repo https://github.com/aadit0402/self-learning-os-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/aadit0402/self-learning-os-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 97779ad890071688c81271a4c4e124146edaa11c0f03932fa0a0a42d7d70ec97
[INFO] running `"docker" "start" "-a" "97779ad890071688c81271a4c4e124146edaa11c0f03932fa0a0a42d7d70ec97"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling x86_64 v0.10.3
[INFO] [stderr]    Compiling llvm-tools v0.1.1
[INFO] [stderr]     Checking bit_field v0.9.0
[INFO] [stderr]     Checking ux v0.1.3
[INFO] [stderr]     Checking fixedvec v0.2.4
[INFO] [stderr]     Checking usize_conversions v0.2.0
[INFO] [stderr]     Checking spin v0.4.10
[INFO] [stderr]     Checking volatile v0.2.6
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking zero v0.1.2
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking array-init v0.0.4
[INFO] [stderr]     Checking xmas-elf v0.6.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bootloader v0.6.4
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking uart_16550 v0.2.6
[INFO] [stderr]     Checking x86_64 v0.7.7
[INFO] [stderr]     Checking self_learning_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: language item required, but not found: `eh_personality`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `self_learning_os`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "97779ad890071688c81271a4c4e124146edaa11c0f03932fa0a0a42d7d70ec97"`
[INFO] running `"docker" "rm" "-f" "97779ad890071688c81271a4c4e124146edaa11c0f03932fa0a0a42d7d70ec97"`
[INFO] [stdout] 97779ad890071688c81271a4c4e124146edaa11c0f03932fa0a0a42d7d70ec97