[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] documenting treydempsey/self-referential-structs against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftreydempsey%2Fself-referential-structs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/treydempsey/self-referential-structs on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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-4/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" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded actix-codec v0.4.2
[INFO] [stderr]   Downloaded actix-http v3.0.0-rc.4
[INFO] [stderr]   Downloaded actix-router v0.5.0-rc.3
[INFO] [stderr]   Downloaded actix-web-codegen v0.5.0-rc.2
[INFO] [stderr]   Downloaded actix-web v4.0.0-rc.3
[INFO] running `Command { std: "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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9c870b92fb435758740b78f07c94e04022fa2855a8bf23479623dcdf19be3c03
[INFO] running `Command { std: "docker" "start" "-a" "9c870b92fb435758740b78f07c94e04022fa2855a8bf23479623dcdf19be3c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c870b92fb435758740b78f07c94e04022fa2855a8bf23479623dcdf19be3c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c870b92fb435758740b78f07c94e04022fa2855a8bf23479623dcdf19be3c03", kill_on_drop: false }`
[INFO] [stdout] 9c870b92fb435758740b78f07c94e04022fa2855a8bf23479623dcdf19be3c03
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c9da98c7a00c8787ce70e20280e876fd309b674fddf4ba147407ff80276a442f
[INFO] running `Command { std: "docker" "start" "-a" "c9da98c7a00c8787ce70e20280e876fd309b674fddf4ba147407ff80276a442f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking tracing-core v0.1.22
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]     Checking parking_lot_core v0.9.1
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking time v0.3.7
[INFO] [stderr]     Checking brotli v3.3.3
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]     Checking ahash v0.7.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling mio v0.8.0
[INFO] [stderr]    Compiling sqlformat v0.1.8
[INFO] [stderr]     Checking flate2 v1.0.22
[INFO] [stderr]    Compiling zstd-sys v1.6.3+zstd.1.5.2
[INFO] [stderr]    Compiling libsqlite3-sys v0.23.2
[INFO] [stderr]    Compiling actix-router v0.5.0-rc.3
[INFO] [stderr]     Checking parking_lot v0.12.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]     Checking tracing v0.1.31
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling futures-intrusive v0.4.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking openssl v0.10.38
[INFO] [stderr]     Checking cookie v0.16.0
[INFO] [stderr]     Checking indexmap v1.8.0
[INFO] [stderr]     Checking hashlink v0.7.0
[INFO] [stderr] error: could not compile `brotli`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name brotli /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/brotli-3.3.3/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc-stdlib"' --cfg 'feature="default"' --cfg 'feature="ffi-api"' --cfg 'feature="std"' -C metadata=59e9b9987d80f410 -C extra-filename=-59e9b9987d80f410 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern alloc_no_stdlib=/opt/rustwide/target/debug/deps/liballoc_no_stdlib-1f7df02655d5600f.rmeta --extern alloc_stdlib=/opt/rustwide/target/debug/deps/liballoc_stdlib-a46c0337533c2fe3.rmeta --extern brotli_decompressor=/opt/rustwide/target/debug/deps/libbrotli_decompressor-6a3be795205c9b31.rmeta --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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=6d175413019a4ccb -C extra-filename=-6d175413019a4ccb --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-57030c87ab48c29a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-1ba47d2f680333a1.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-893a1d89efc86dd7.rmeta --cap-lints allow --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "c9da98c7a00c8787ce70e20280e876fd309b674fddf4ba147407ff80276a442f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9da98c7a00c8787ce70e20280e876fd309b674fddf4ba147407ff80276a442f", kill_on_drop: false }`
[INFO] [stdout] c9da98c7a00c8787ce70e20280e876fd309b674fddf4ba147407ff80276a442f