[INFO] updating cached repository https://github.com/3541/syzygy
[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] e1dad59dd469ca284030200d1456b36aeeec86e0
[INFO] checking 3541/syzygy against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F3541%2Fsyzygy" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/3541/syzygy on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/3541/syzygy
[INFO] finished tweaking git repo https://github.com/3541/syzygy
[INFO] tweaked toml for git repo https://github.com/3541/syzygy written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/3541/syzygy already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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] 73a53fee36b0c65cd0fd5482a5f7b4d598295d5c711cf887399f7b85bca7be17
[INFO] running `"docker" "start" "-a" "73a53fee36b0c65cd0fd5482a5f7b4d598295d5c711cf887399f7b85bca7be17"`
[INFO] [stderr]    Compiling compiler_builtins v0.1.23 (https://github.com/rust-lang/compiler-builtins#6de4f8f2)
[INFO] [stderr]     Checking volatile v0.2.6
[INFO] [stderr]     Checking ansi_rgb v0.2.0
[INFO] [stderr]     Checking multiboot2 v0.8.1
[INFO] [stderr]     Checking syzygy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `PD`
[INFO] [stderr]  --> src/memory/paging/mapper.rs:4:67
[INFO] [stderr]   |
[INFO] [stderr] 4 |     EntryFlags, Table, TableType, ACTIVE_TOP_LEVEL_TABLE_ADDRESS, PD, PML4, TABLE_LEVELS,
[INFO] [stderr]   |                                                                   ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[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 `syzygy`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0152]: duplicate lang item found: `oom`.
[INFO] [stderr]   --> src/lib.rs:80:1
[INFO] [stderr]    |
[INFO] [stderr] 80 | / fn alloc_err(layout: alloc::alloc::Layout) -> ! {
[INFO] [stderr] 81 | |     panic!("Allocator error!\n\t{:?}", layout);
[INFO] [stderr] 82 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: first defined in crate `std` (which `syzygy` depends on).
[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 `syzygy`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "73a53fee36b0c65cd0fd5482a5f7b4d598295d5c711cf887399f7b85bca7be17"`
[INFO] running `"docker" "rm" "-f" "73a53fee36b0c65cd0fd5482a5f7b4d598295d5c711cf887399f7b85bca7be17"`
[INFO] [stdout] 73a53fee36b0c65cd0fd5482a5f7b4d598295d5c711cf887399f7b85bca7be17