[INFO] cloning repository https://github.com/treydempsey/self-referential-structs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/treydempsey/self-referential-structs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreydempsey%2Fself-referential-structs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreydempsey%2Fself-referential-structs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f31b170eea80909bfc0139ba4572a9c8e72738d3
[INFO] testing treydempsey/self-referential-structs against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreydempsey%2Fself-referential-structs" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/treydempsey/self-referential-structs on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/treydempsey/self-referential-structs
[INFO] finished tweaking git repo https://github.com/treydempsey/self-referential-structs
[INFO] tweaked toml for git repo https://github.com/treydempsey/self-referential-structs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/treydempsey/self-referential-structs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d080705451676b115fe60020ac04b9a59444aefd54d734b144e96b836d117c5
[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" "1d080705451676b115fe60020ac04b9a59444aefd54d734b144e96b836d117c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d080705451676b115fe60020ac04b9a59444aefd54d734b144e96b836d117c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d080705451676b115fe60020ac04b9a59444aefd54d734b144e96b836d117c5", kill_on_drop: false }`
[INFO] [stdout] 1d080705451676b115fe60020ac04b9a59444aefd54d734b144e96b836d117c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "RUSTFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 837a8b58cffaa77985e3c18c72859e9c1faa76b03dd185dd8e50bd3b95d54b98
[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" "837a8b58cffaa77985e3c18c72859e9c1faa76b03dd185dd8e50bd3b95d54b98", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling crossbeam-queue v0.3.4
[INFO] [stderr]    Compiling local-waker v0.1.2
[INFO] [stderr]    Compiling zstd-safe v4.1.4+zstd.1.5.2
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.3
[INFO] [stderr]    Compiling crc-catalog v1.1.1
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling firestorm v0.5.0
[INFO] [stderr]    Compiling httparse v1.6.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling num_threads v0.1.3
[INFO] [stderr]    Compiling language-tags v0.3.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling bytestring v1.0.0
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling cookie v0.16.0
[INFO] [stderr]    Compiling actix-utils v3.0.0
[INFO] [stderr]    Compiling crc v2.1.0
[INFO] [stderr]    Compiling alloc-stdlib v0.2.1
[INFO] [stderr]    Compiling tracing v0.1.31
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling socket2 v0.4.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling time v0.3.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling mio v0.8.0
[INFO] [stderr]    Compiling stringprep v0.1.2
[INFO] [stderr]    Compiling brotli-decompressor v2.3.2
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling sqlformat v0.1.8
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling futures-intrusive v0.4.0
[INFO] [stderr]    Compiling actix-router v0.5.0-rc.3
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling actix-service v2.0.2
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling sha-1 v0.10.0
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling brotli v3.3.3
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling hashlink v0.7.0
[INFO] [stderr]    Compiling atoi v0.4.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling zstd-sys v1.6.3+zstd.1.5.2
[INFO] [stderr]    Compiling libsqlite3-sys v0.23.2
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.86/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit-mut"' -C metadata=ca85a754a2fb8ce7 -C extra-filename=-ca85a754a2fb8ce7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d43b9eeea9b4257f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-8d5920e04f914a4c.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-11d097b41f2e60a4.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `tokio`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name tokio --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-1.17.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="bytes"' --cfg 'feature="default"' --cfg 'feature="fs"' --cfg 'feature="io-util"' --cfg 'feature="libc"' --cfg 'feature="memchr"' --cfg 'feature="mio"' --cfg 'feature="net"' --cfg 'feature="num_cpus"' --cfg 'feature="once_cell"' --cfg 'feature="parking_lot"' --cfg 'feature="rt"' --cfg 'feature="rt-multi-thread"' --cfg 'feature="signal"' --cfg 'feature="signal-hook-registry"' --cfg 'feature="socket2"' --cfg 'feature="sync"' --cfg 'feature="time"' -C metadata=1b92b9bca326d137 -C extra-filename=-1b92b9bca326d137 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-44851e2768c88cca.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-7a5dab6311f3c1a3.rmeta --extern memchr=/opt/rustwide/target/debug/deps/libmemchr-794f323e2c3fede3.rmeta --extern mio=/opt/rustwide/target/debug/deps/libmio-ad54f3a4f4c99b50.rmeta --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-0cf63326fa2cd96b.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-5d5fb79f44447b4b.rmeta --extern parking_lot=/opt/rustwide/target/debug/deps/libparking_lot-bf1640b4a9f134a7.rmeta --extern pin_project_lite=/opt/rustwide/target/debug/deps/libpin_project_lite-02e5e2d23f061f41.rmeta --extern signal_hook_registry=/opt/rustwide/target/debug/deps/libsignal_hook_registry-12efe388c0e811c5.rmeta --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-f8ca72e547b1adac.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "837a8b58cffaa77985e3c18c72859e9c1faa76b03dd185dd8e50bd3b95d54b98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "837a8b58cffaa77985e3c18c72859e9c1faa76b03dd185dd8e50bd3b95d54b98", kill_on_drop: false }`
[INFO] [stdout] 837a8b58cffaa77985e3c18c72859e9c1faa76b03dd185dd8e50bd3b95d54b98