[INFO] cloning repository https://github.com/duyet/demo-tracing-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/duyet/demo-tracing-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduyet%2Fdemo-tracing-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduyet%2Fdemo-tracing-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b519c8419e90a349cecc584447b6ff0e5b6a8e6
[INFO] documenting duyet/demo-tracing-rs/0b519c8419e90a349cecc584447b6ff0e5b6a8e6 against master#ef324565d071c6d7e2477a195648549e33d6a465 for pr-121659-bump-pulldown-cmark
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduyet%2Fdemo-tracing-rs" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/duyet/demo-tracing-rs on toolchain ef324565d071c6d7e2477a195648549e33d6a465
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/duyet/demo-tracing-rs
[INFO] finished tweaking git repo https://github.com/duyet/demo-tracing-rs
[INFO] tweaked toml for git repo https://github.com/duyet/demo-tracing-rs written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/duyet/demo-tracing-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-opentelemetry v0.18.0
[INFO] [stderr]   Downloaded opentelemetry v0.18.0
[INFO] [stderr]   Downloaded opentelemetry-semantic-conventions v0.11.0
[INFO] [stderr]   Downloaded opentelemetry-http v0.8.0
[INFO] [stderr]   Downloaded opentelemetry v0.19.0
[INFO] [stderr]   Downloaded thrift v0.17.0
[INFO] [stderr]   Downloaded opentelemetry_api v0.19.0
[INFO] [stderr]   Downloaded opentelemetry_api v0.18.0
[INFO] [stderr]   Downloaded reqwest v0.11.15
[INFO] [stderr]   Downloaded opentelemetry_sdk v0.19.0
[INFO] [stderr]   Downloaded opentelemetry_sdk v0.18.0
[INFO] [stderr]   Downloaded opentelemetry-jaeger v0.18.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad8cc497fb24f1648137b2be362edb6d5ac3853245a84497b9f5fef45e5392bb
[INFO] running `Command { std: "docker" "start" "-a" "ad8cc497fb24f1648137b2be362edb6d5ac3853245a84497b9f5fef45e5392bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad8cc497fb24f1648137b2be362edb6d5ac3853245a84497b9f5fef45e5392bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad8cc497fb24f1648137b2be362edb6d5ac3853245a84497b9f5fef45e5392bb", kill_on_drop: false }`
[INFO] [stdout] ad8cc497fb24f1648137b2be362edb6d5ac3853245a84497b9f5fef45e5392bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ef324565d071c6d7e2477a195648549e33d6a465" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72d8a4000a082b52956dacbc594b8086bab1858e4af623a7f53776806089ceba
[INFO] running `Command { std: "docker" "start" "-a" "72d8a4000a082b52956dacbc594b8086bab1858e4af623a7f53776806089ceba", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]    Compiling libz-sys v1.1.8
[INFO] [stderr]    Compiling openssl-sys v0.9.82
[INFO] [stderr]    Compiling async-trait v0.1.67
[INFO] [stderr]    Compiling curl-sys v0.4.60+curl-7.88.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.7
[INFO] [stderr]     Checking generic-array v0.14.6
[INFO] [stderr]     Checking urlencoding v2.1.2
[INFO] [stderr]     Checking unicode-bidi v0.3.12
[INFO] [stderr]    Compiling serde v1.0.158
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling curl v0.4.44
[INFO] [stderr]     Checking async-channel v1.8.0
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling polling v2.6.0
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling isahc v1.7.2
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking ipnet v2.7.1
[INFO] [stderr]     Checking castaway v0.1.2
[INFO] [stderr]     Checking sluice v0.5.5
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.52/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking thread_local v1.1.7
[INFO] [stderr]     Checking integer-encoding v3.0.4
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "72d8a4000a082b52956dacbc594b8086bab1858e4af623a7f53776806089ceba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72d8a4000a082b52956dacbc594b8086bab1858e4af623a7f53776806089ceba", kill_on_drop: false }`
[INFO] [stdout] 72d8a4000a082b52956dacbc594b8086bab1858e4af623a7f53776806089ceba