[INFO] cloning repository https://github.com/Ryan1729/wasm_shenzhen_solitaire
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ryan1729/wasm_shenzhen_solitaire" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyan1729%2Fwasm_shenzhen_solitaire", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyan1729%2Fwasm_shenzhen_solitaire'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c98f355a208b99c061d8ac22edcf6f5f5ae33ac2
[INFO] documenting Ryan1729/wasm_shenzhen_solitaire against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyan1729%2Fwasm_shenzhen_solitaire" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ryan1729/wasm_shenzhen_solitaire on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ryan1729/wasm_shenzhen_solitaire
[INFO] finished tweaking git repo https://github.com/Ryan1729/wasm_shenzhen_solitaire
[INFO] tweaked toml for git repo https://github.com/Ryan1729/wasm_shenzhen_solitaire written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Ryan1729/wasm_shenzhen_solitaire already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81700825fbf084546dc25927ba3e62d788de7bf8d3ca2203911c357b4d2a40b8
[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" "81700825fbf084546dc25927ba3e62d788de7bf8d3ca2203911c357b4d2a40b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81700825fbf084546dc25927ba3e62d788de7bf8d3ca2203911c357b4d2a40b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81700825fbf084546dc25927ba3e62d788de7bf8d3ca2203911c357b4d2a40b8", kill_on_drop: false }`
[INFO] [stdout] 81700825fbf084546dc25927ba3e62d788de7bf8d3ca2203911c357b4d2a40b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 096a1796542f09a0e705ec218865362493161eb660f613c5f3d5e7c51d40eaf8
[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" "096a1796542f09a0e705ec218865362493161eb660f613c5f3d5e7c51d40eaf8", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]    Compiling stdweb v0.4.2
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking num-traits v0.1.42
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking termcolor v0.3.5
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking futures v0.1.18
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking regex-syntax v0.5.3
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking env_logger v0.5.5
[INFO] [stderr]     Checking quickcheck v0.6.2
[INFO] [stderr]    Compiling serde_derive v1.0.27
[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-1.0.27/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C opt-level=2 -Cembed-bitcode=no -C codegen-units=4 -C debuginfo=2 -C debug-assertions=on --cfg 'feature="default"' -C metadata=3cb512dbde3621a8 -C extra-filename=-3cb512dbde3621a8 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern quote=/opt/rustwide/target/debug/deps/libquote-ed02cd79ade5c8aa.rlib --extern serde_derive_internals=/opt/rustwide/target/debug/deps/libserde_derive_internals-3e905de2b999e092.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-1ca4d03c5a410c31.rlib --extern proc_macro --cap-lints allow` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "096a1796542f09a0e705ec218865362493161eb660f613c5f3d5e7c51d40eaf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "096a1796542f09a0e705ec218865362493161eb660f613c5f3d5e7c51d40eaf8", kill_on_drop: false }`
[INFO] [stdout] 096a1796542f09a0e705ec218865362493161eb660f613c5f3d5e7c51d40eaf8