[INFO] fetching crate derive-dynamic-node 0.2.1... [INFO] documenting derive-dynamic-node-0.2.1 against try#6ee483316d2e4581572121d60a955affb2032eb3+cargoflags=-Zrustdoc-scrape-examples for scrape-examples [INFO] extracting crate derive-dynamic-node 0.2.1 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate derive-dynamic-node 0.2.1 on toolchain 6ee483316d2e4581572121d60a955affb2032eb3 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate derive-dynamic-node 0.2.1 [INFO] finished tweaking crates.io crate derive-dynamic-node 0.2.1 [INFO] tweaked toml for crates.io crate derive-dynamic-node 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate crates.io crate derive-dynamic-node 0.2.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a0e24f30c7b43edea89a6aa8343d05c7e0988d7d3a18abeb4763e2fd44840195 [INFO] running `Command { std: "docker" "start" "-a" "a0e24f30c7b43edea89a6aa8343d05c7e0988d7d3a18abeb4763e2fd44840195", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a0e24f30c7b43edea89a6aa8343d05c7e0988d7d3a18abeb4763e2fd44840195", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a0e24f30c7b43edea89a6aa8343d05c7e0988d7d3a18abeb4763e2fd44840195", kill_on_drop: false }` [INFO] [stdout] a0e24f30c7b43edea89a6aa8343d05c7e0988d7d3a18abeb4763e2fd44840195 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }` [INFO] [stdout] 6ae28e523d7593a3baa54fad270119700a488009ef67db80308ca8dad616e591 [INFO] running `Command { std: "docker" "start" "-a" "6ae28e523d7593a3baa54fad270119700a488009ef67db80308ca8dad616e591", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.65 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling cc v1.0.47 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling getrandom v0.1.13 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling syn v1.0.11 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling quick-error v1.2.2 [INFO] [stderr] Compiling ryu v1.0.2 [INFO] [stderr] Compiling itertools v0.7.11 [INFO] [stderr] Compiling strsim v0.7.0 [INFO] [stderr] Compiling ident_case v1.0.1 [INFO] [stderr] Compiling serde v1.0.102 [INFO] [stderr] Compiling fnv v1.0.6 [INFO] [stderr] Compiling humantime v1.3.0 [INFO] [stderr] Compiling termcolor v1.0.5 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling unicode-segmentation v1.5.0 [INFO] [stderr] Compiling fixedbitset v0.1.9 [INFO] [stderr] Compiling remove_dir_all v0.5.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling proc-macro2 v0.2.3 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling atty v0.2.13 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling multimap v0.4.0 [INFO] [stderr] Compiling env_logger v0.5.13 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling quote v0.4.2 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Compiling derive_builder v0.7.2 [INFO] [stderr] Compiling prost v0.4.0 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Compiling syn v0.12.15 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling tempdir v0.3.7 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand v0.7.2 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Checking itoa v0.4.4 [INFO] [stderr] Compiling base64 v0.11.0 [INFO] [stderr] Checking futures v0.1.29 [INFO] [stderr] Checking uuid v0.8.1 [INFO] [stderr] Checking custom_derive v0.1.7 [INFO] [stderr] Compiling backtrace v0.3.40 [INFO] [stderr] Compiling failure v0.1.6 [INFO] [stderr] Checking uuid v0.7.4 [INFO] [stderr] Compiling which v2.0.1 [INFO] [stderr] Compiling prost-build v0.4.0 [INFO] [stderr] Compiling typed-builder v0.1.1 [INFO] [stderr] Compiling thiserror-impl v1.0.9 [INFO] [stderr] Compiling serde_derive v1.0.102 [INFO] [stderr] Compiling derive_more v0.10.0 [INFO] [stderr] Compiling prost-derive v0.4.0 [INFO] [stderr] Compiling darling_core v0.9.0 [INFO] [stderr] Checking serde_json v1.0.41 [INFO] [stderr] Compiling thiserror v1.0.9 [INFO] [stderr] Compiling prost-types v0.4.0 [INFO] [stderr] Compiling darling_macro v0.9.0 [INFO] [stderr] Compiling darling v0.9.0 [INFO] [stderr] Compiling derive_builder_core v0.5.0 [INFO] [stderr] Compiling grapl-graph-descriptions v0.2.3 [INFO] [stderr] Documenting derive-dynamic-node v0.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Compiling derive-dynamic-node v0.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Scraping derive-dynamic-node v0.2.1 (/opt/rustwide/workdir) [INFO] [stderr] warning: failed to scan example "ex" in package `derive-dynamic-node` for example code usage [INFO] [stderr] Try running with `--verbose` to see the error message. [INFO] [stderr] If an example or library should not be scanned, then consider adding `doc-scrape-examples = false` to its `[[example]]` or `[lib]` definition in Cargo.toml [INFO] [stderr] warning: `derive-dynamic-node` (example "ex") generated 1 warning [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 20.24s [INFO] running `Command { std: "docker" "inspect" "6ae28e523d7593a3baa54fad270119700a488009ef67db80308ca8dad616e591", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ae28e523d7593a3baa54fad270119700a488009ef67db80308ca8dad616e591", kill_on_drop: false }` [INFO] [stdout] 6ae28e523d7593a3baa54fad270119700a488009ef67db80308ca8dad616e591 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+6ee483316d2e4581572121d60a955affb2032eb3" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json" "-Zrustdoc-scrape-examples", kill_on_drop: false }` [INFO] [stdout] a2bdeba9a9884c5bae59074c544fe244274a4565f21ddf1215d3663e75a24d80 [INFO] running `Command { std: "docker" "start" "-a" "a2bdeba9a9884c5bae59074c544fe244274a4565f21ddf1215d3663e75a24d80", kill_on_drop: false }` [INFO] [stderr] thread 'main' panicked at 'called `Option::unwrap()` on a `None` value', src/tools/cargo/src/cargo/ops/cargo_compile/mod.rs:595:21 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x55567031e3aa - std::backtrace_rs::backtrace::libunwind::trace::hbb02440b40bb9669 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stderr] 1: 0x55567031e3aa - std::backtrace_rs::backtrace::trace_unsynchronized::hd2467d754e36e43b [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stderr] 2: 0x55567031e3aa - std::sys_common::backtrace::_print_fmt::h4cf36b1b450e0987 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/sys_common/backtrace.rs:65:5 [INFO] [stderr] 3: 0x55567031e3aa - ::fmt::h95ee7f4f8f4ef0e1 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stderr] 4: 0x55567034a23e - core::fmt::write::hd95edd65674f3a7f [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/core/src/fmt/mod.rs:1208:17 [INFO] [stderr] 5: 0x555670315b25 - std::io::Write::write_fmt::h9b03a017f326c606 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/io/mod.rs:1682:15 [INFO] [stderr] 6: 0x55567031e175 - std::sys_common::backtrace::_print::h8405574d8c3d7a77 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stderr] 7: 0x55567031e175 - std::sys_common::backtrace::print::h4e89d3c49e23cb5d [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stderr] 8: 0x55567032026f - std::panicking::default_hook::{{closure}}::he360656a5892d484 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/panicking.rs:267:22 [INFO] [stderr] 9: 0x55567031ffab - std::panicking::default_hook::h96be6d1ab50c8b7a [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/panicking.rs:286:9 [INFO] [stderr] 10: 0x5556703209dc - std::panicking::rust_panic_with_hook::hc047a736e498ca95 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/panicking.rs:688:13 [INFO] [stderr] 11: 0x555670320732 - std::panicking::begin_panic_handler::{{closure}}::hebe6e2aee7acb8d5 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/panicking.rs:577:13 [INFO] [stderr] 12: 0x55567031e85c - std::sys_common::backtrace::__rust_end_short_backtrace::h011959547c4fdea4 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/sys_common/backtrace.rs:137:18 [INFO] [stderr] 13: 0x555670320482 - rust_begin_unwind [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/panicking.rs:575:5 [INFO] [stderr] 14: 0x555670347d13 - core::panicking::panic_fmt::h7da7ec46e55b48ce [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/core/src/panicking.rs:64:14 [INFO] [stderr] 15: 0x555670347ded - core::panicking::panic::hbbf385e751cfae35 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/core/src/panicking.rs:111:5 [INFO] [stderr] 16: 0x55566fcd14a7 - , cargo[95595dfe3ed4e45e]::ops::cargo_compile::rebuild_unit_graph_shared::{closure#1}> as core[b46aee17bf97dbda]::iter::traits::iterator::Iterator>::fold::<(), core[b46aee17bf97dbda]::iter::traits::iterator::Iterator::for_each::call>::extend_trusted, cargo[95595dfe3ed4e45e]::ops::cargo_compile::rebuild_unit_graph_shared::{closure#1}>>::{closure#0}>::{closure#0}> [INFO] [stderr] 17: 0x55566fd1f54e - as alloc[a4762d2e4e3eda61]::vec::spec_from_iter::SpecFromIter, cargo[95595dfe3ed4e45e]::ops::cargo_compile::rebuild_unit_graph_shared::{closure#1}>>>::from_iter [INFO] [stderr] 18: 0x55566fe7a53b - cargo[95595dfe3ed4e45e]::ops::cargo_compile::rebuild_unit_graph_shared [INFO] [stderr] 19: 0x55566fe79164 - cargo[95595dfe3ed4e45e]::ops::cargo_compile::create_bcx [INFO] [stderr] 20: 0x55566fe76dba - cargo[95595dfe3ed4e45e]::ops::cargo_compile::compile_ws [INFO] [stderr] 21: 0x55566fe76ca5 - cargo[95595dfe3ed4e45e]::ops::cargo_compile::compile [INFO] [stderr] 22: 0x55566fd89b6a - cargo[95595dfe3ed4e45e]::ops::cargo_doc::doc [INFO] [stderr] 23: 0x55566f8d674c - cargo[b15b872d2441d0b2]::commands::rustdoc::exec [INFO] [stderr] 24: 0x55566f8ba541 - cargo[b15b872d2441d0b2]::cli::main [INFO] [stderr] 25: 0x55566f8f7b0c - cargo[b15b872d2441d0b2]::main [INFO] [stderr] 26: 0x55566f8780b3 - std[b20558bc276abb0c]::sys_common::backtrace::__rust_begin_short_backtrace:: [INFO] [stderr] 27: 0x55566f891be9 - std[b20558bc276abb0c]::rt::lang_start::<()>::{closure#0} [INFO] [stderr] 28: 0x55567030d28c - core::ops::function::impls:: for &F>::call_once::h72a911602f0b4282 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/core/src/ops/function.rs:606:13 [INFO] [stderr] 29: 0x55567030d28c - std::panicking::try::do_call::h94f7610073120088 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/panicking.rs:483:40 [INFO] [stderr] 30: 0x55567030d28c - std::panicking::try::h3a6d86000bb39b69 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/panicking.rs:447:19 [INFO] [stderr] 31: 0x55567030d28c - std::panic::catch_unwind::h86ac58be7aba884e [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/panic.rs:137:14 [INFO] [stderr] 32: 0x55567030d28c - std::rt::lang_start_internal::{{closure}}::h7e8903c189fcda06 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/rt.rs:148:48 [INFO] [stderr] 33: 0x55567030d28c - std::panicking::try::do_call::h4d118faeab12ab4d [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/panicking.rs:483:40 [INFO] [stderr] 34: 0x55567030d28c - std::panicking::try::hdee2821daeeb23d9 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/panicking.rs:447:19 [INFO] [stderr] 35: 0x55567030d28c - std::panic::catch_unwind::hac7e3e2abd8ec1c5 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/panic.rs:137:14 [INFO] [stderr] 36: 0x55567030d28c - std::rt::lang_start_internal::h1cd40ebdb8a3e2a9 [INFO] [stderr] at /rustc/6ee483316d2e4581572121d60a955affb2032eb3/library/std/src/rt.rs:148:20 [INFO] [stderr] 37: 0x55566f8fa6d5 - main [INFO] [stderr] 38: 0x7f74ea016083 - __libc_start_main [INFO] [stderr] 39: 0x55566f86e029 - [INFO] [stderr] 40: 0x0 - [INFO] running `Command { std: "docker" "inspect" "a2bdeba9a9884c5bae59074c544fe244274a4565f21ddf1215d3663e75a24d80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a2bdeba9a9884c5bae59074c544fe244274a4565f21ddf1215d3663e75a24d80", kill_on_drop: false }` [INFO] [stdout] a2bdeba9a9884c5bae59074c544fe244274a4565f21ddf1215d3663e75a24d80