[INFO] cloning repository https://github.com/slice/havoc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/slice/havoc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslice%2Fhavoc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslice%2Fhavoc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b5aeb11c28651a66a5a3ab3f1ff12c77e477c4e0
[INFO] documenting slice/havoc against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fslice%2Fhavoc" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/slice/havoc on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/slice/havoc
[INFO] finished tweaking git repo https://github.com/slice/havoc
[INFO] tweaked toml for git repo https://github.com/slice/havoc written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/slice/havoc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded swc_visit_macros v0.2.3
[INFO] [stderr]   Downloaded from_variant v0.1.3
[INFO] [stderr]   Downloaded ast_node v0.7.3
[INFO] [stderr]   Downloaded swc_atoms v0.2.6
[INFO] [stderr]   Downloaded string_enum v0.3.1
[INFO] [stderr]   Downloaded curl v0.4.35
[INFO] [stderr]   Downloaded isahc v1.3.1
[INFO] [stderr]   Downloaded swc_ecma_visit v0.29.1
[INFO] [stderr]   Downloaded swc_ecma_parser v0.54.4
[INFO] [stderr]   Downloaded swc_macros_common v0.3.3
[INFO] [stderr]   Downloaded swc_common v0.10.17
[INFO] [stderr]   Downloaded enum_kind v0.2.1
[INFO] [stderr]   Downloaded swc_visit v0.2.4
[INFO] [stderr]   Downloaded is-macro v0.1.9
[INFO] [stderr]   Downloaded pmutil v0.5.3
[INFO] [stderr]   Downloaded siphasher v0.3.5
[INFO] [stderr]   Downloaded swc_eq_ignore_macros v0.1.0
[INFO] [stderr]   Downloaded swc_ecma_ast v0.43.1
[INFO] [stderr]   Downloaded curl-sys v0.4.42+curl-7.76.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8db00861ea3b6ff56537410db8bdb8bbaaa7afda3d39b0824bb29626a0ad3a3a
[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" "8db00861ea3b6ff56537410db8bdb8bbaaa7afda3d39b0824bb29626a0ad3a3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8db00861ea3b6ff56537410db8bdb8bbaaa7afda3d39b0824bb29626a0ad3a3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8db00861ea3b6ff56537410db8bdb8bbaaa7afda3d39b0824bb29626a0ad3a3a", kill_on_drop: false }`
[INFO] [stdout] 8db00861ea3b6ff56537410db8bdb8bbaaa7afda3d39b0824bb29626a0ad3a3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1aa126a2c4e49e48f1e64a0f87a25b819b3175e891aa5a4776b60ce8848b65cb
[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" "1aa126a2c4e49e48f1e64a0f87a25b819b3175e891aa5a4776b60ce8848b65cb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]     Checking siphasher v0.3.5
[INFO] [stderr]    Compiling curl v0.4.35
[INFO] [stderr]    Compiling isahc v1.3.1
[INFO] [stderr]     Checking if_chain v1.0.1
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.6+1.43.0
[INFO] [stderr]    Compiling curl-sys v0.4.42+curl-7.76.0
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking libz-sys v1.1.2
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]     Checking matchers v0.0.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling swc_atoms v0.2.6
[INFO] [stderr]    Compiling pmutil v0.5.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling swc_macros_common v0.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling swc_visit_macros v0.2.3
[INFO] [stderr]    Compiling swc_eq_ignore_macros v0.1.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling from_variant v0.1.3
[INFO] [stderr]    Compiling string_enum v0.3.1
[INFO] [stderr]    Compiling is-macro v0.1.9
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling enum_kind v0.2.1
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr] error: could not compile `serde_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.125/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=940077061a4d998d -C extra-filename=-940077061a4d998d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-14cd586ab686c21a.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-87ff32172245591e.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-849a57d7e68987cd.rlib --extern proc_macro --cap-lints allow --cfg underscore_consts` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "1aa126a2c4e49e48f1e64a0f87a25b819b3175e891aa5a4776b60ce8848b65cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aa126a2c4e49e48f1e64a0f87a25b819b3175e891aa5a4776b60ce8848b65cb", kill_on_drop: false }`
[INFO] [stdout] 1aa126a2c4e49e48f1e64a0f87a25b819b3175e891aa5a4776b60ce8848b65cb
