[INFO] fetching crate flexstr 0.9.2...
[INFO] documenting flexstr-0.9.2 against try#6fd27704e643b25711e6a97ec2b04873b411b97d for pr-96676
[INFO] extracting crate flexstr 0.9.2 into /workspace/builds/worker-85/source
[INFO] validating manifest of crates.io crate flexstr 0.9.2 on toolchain 6fd27704e643b25711e6a97ec2b04873b411b97d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flexstr 0.9.2
[INFO] finished tweaking crates.io crate flexstr 0.9.2
[INFO] tweaked toml for crates.io crate flexstr 0.9.2 written to /workspace/builds/worker-85/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91073d701599cc8c7d3ab151e1c6a0755c38b9711085664169f0637cff360b09
[INFO] running `Command { std: "docker" "start" "-a" "91073d701599cc8c7d3ab151e1c6a0755c38b9711085664169f0637cff360b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91073d701599cc8c7d3ab151e1c6a0755c38b9711085664169f0637cff360b09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91073d701599cc8c7d3ab151e1c6a0755c38b9711085664169f0637cff360b09", kill_on_drop: false }`
[INFO] [stdout] 91073d701599cc8c7d3ab151e1c6a0755c38b9711085664169f0637cff360b09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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=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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bc877abb7f61b7fd170c557e6d2ab90aee030f5cafb9662a561f91fd4b96c70
[INFO] running `Command { std: "docker" "start" "-a" "0bc877abb7f61b7fd170c557e6d2ab90aee030f5cafb9662a561f91fd4b96c70", kill_on_drop: false }`
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]  Documenting flexstr v0.9.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "0bc877abb7f61b7fd170c557e6d2ab90aee030f5cafb9662a561f91fd4b96c70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bc877abb7f61b7fd170c557e6d2ab90aee030f5cafb9662a561f91fd4b96c70", kill_on_drop: false }`
[INFO] [stdout] 0bc877abb7f61b7fd170c557e6d2ab90aee030f5cafb9662a561f91fd4b96c70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+6fd27704e643b25711e6a97ec2b04873b411b97d" "rustdoc" "--lib" "-Zrustdoc-map" "--all-features" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 8c99a2c1cb58dc0e2748a36d03815ea19b90b8bdb47cfbabf7913254059b9101
[INFO] running `Command { std: "docker" "start" "-a" "8c99a2c1cb58dc0e2748a36d03815ea19b90b8bdb47cfbabf7913254059b9101", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling ufmt-macros v0.1.1
[INFO] [stderr]     Checking ufmt v0.1.0
[INFO] [stderr]  Documenting flexstr v0.9.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]   --> src/macros.rs:31:20
[INFO] [stdout]    |
[INFO] [stdout] 31 | /// Equivalent to [local_fmt] except that it uses `ufmt` which is much faster, but has limitations.
[INFO] [stdout]    |                    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[deny(rustdoc::macro_rules_fallback)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: macro_rules fallback is used during doc link resolution
[INFO] [stdout]   --> src/macros.rs:53:20
[INFO] [stdout]    |
[INFO] [stdout] 53 | /// Equivalent to [shared_fmt] except that it uses `ufmt` which is much faster, but has limitations.
[INFO] [stdout]    |                    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `flexstr`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2021 --crate-type lib --crate-name flexstr src/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --cfg 'feature="fast_format"' --cfg 'feature="fp_convert"' --cfg 'feature="int_convert"' --cfg 'feature="itoa"' --cfg 'feature="ryu"' --cfg 'feature="serde"' --cfg 'feature="std"' --cfg 'feature="ufmt"' --cfg 'feature="ufmt-write"' --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat -Z unstable-options --document-private-items -C metadata=758936fbeb14fe8f -L dependency=/opt/rustwide/target/debug/deps --extern itoa=/opt/rustwide/target/debug/deps/libitoa-ffb405c4aca92714.rmeta --extern ryu=/opt/rustwide/target/debug/deps/libryu-ad684af7ae164d51.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-b1406e0024249e5f.rmeta --extern static_assertions=/opt/rustwide/target/debug/deps/libstatic_assertions-8ed3a81d970c74d9.rmeta --extern ufmt=/opt/rustwide/target/debug/deps/libufmt-4363f56d2edc6498.rmeta --extern ufmt_write=/opt/rustwide/target/debug/deps/libufmt_write-fe15738048cfb171.rmeta --extern-html-root-url 'itoa=https://docs.rs/itoa/1.0.1/' --extern-html-root-url 'ryu=https://docs.rs/ryu/1.0.9/' --extern-html-root-url 'serde=https://docs.rs/serde/1.0.137/' --extern-html-root-url 'static_assertions=https://docs.rs/static_assertions/1.1.0/' --extern-html-root-url 'ufmt=https://docs.rs/ufmt/0.1.0/' --extern-html-root-url 'ufmt_write=https://docs.rs/ufmt-write/0.1.0/' -Zunstable-options --crate-version 0.9.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "8c99a2c1cb58dc0e2748a36d03815ea19b90b8bdb47cfbabf7913254059b9101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c99a2c1cb58dc0e2748a36d03815ea19b90b8bdb47cfbabf7913254059b9101", kill_on_drop: false }`
[INFO] [stdout] 8c99a2c1cb58dc0e2748a36d03815ea19b90b8bdb47cfbabf7913254059b9101