[INFO] cloning repository https://github.com/adisbladis/mdbook-nixdoc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adisbladis/mdbook-nixdoc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadisbladis%2Fmdbook-nixdoc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadisbladis%2Fmdbook-nixdoc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6a71b114b9221c0b4f20d31b81766d072cc26be
[INFO] checking adisbladis/mdbook-nixdoc against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadisbladis%2Fmdbook-nixdoc" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adisbladis/mdbook-nixdoc on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/adisbladis/mdbook-nixdoc
[INFO] finished tweaking git repo https://github.com/adisbladis/mdbook-nixdoc
[INFO] tweaked toml for git repo https://github.com/adisbladis/mdbook-nixdoc written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/adisbladis/mdbook-nixdoc 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.178
[INFO] [stderr]   Downloaded pest_generator v2.7.1
[INFO] [stderr]   Downloaded pest_meta v2.7.1
[INFO] [stderr]   Downloaded pest_derive v2.7.1
[INFO] [stderr]   Downloaded pest v2.7.1
[INFO] [stderr]   Downloaded winnow v0.5.1
[INFO] [stderr]   Downloaded serde_derive v1.0.178
[INFO] [stderr]   Downloaded mdbook v0.4.32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b369da7ef75086345f297a86ee313e7c5c54d997244ee70a210a14e3aea16551
[INFO] running `Command { std: "docker" "start" "-a" "b369da7ef75086345f297a86ee313e7c5c54d997244ee70a210a14e3aea16551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b369da7ef75086345f297a86ee313e7c5c54d997244ee70a210a14e3aea16551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b369da7ef75086345f297a86ee313e7c5c54d997244ee70a210a14e3aea16551", kill_on_drop: false }`
[INFO] [stdout] b369da7ef75086345f297a86ee313e7c5c54d997244ee70a210a14e3aea16551
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 821d580db03d2fca8c235f8584fda3e3062eaa87c36b0d03ab6734e60ee88add
[INFO] running `Command { std: "docker" "start" "-a" "821d580db03d2fca8c235f8584fda3e3062eaa87c36b0d03ab6734e60ee88add", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]    Compiling serde v1.0.178
[INFO] [stderr]    Compiling serde_derive v1.0.178
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]    Compiling thiserror-impl v1.0.44
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling pulldown-cmark v0.9.3
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]     Checking winnow v0.5.1
[INFO] [stderr]     Checking fastrand v2.0.0
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking terminal_size v0.2.6
[INFO] [stderr]     Checking regex-automata v0.3.4
[INFO] [stderr]     Checking topological-sort v0.2.2
[INFO] [stderr]    Compiling pest v2.7.1
[INFO] [stderr]     Checking shlex v1.1.0
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking tempfile v3.7.0
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking clap_builder v4.3.19
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_json v1.0.104
[INFO] [stderr]    Compiling pest_meta v2.7.1
[INFO] [stderr]     Checking toml_edit v0.19.14
[INFO] [stderr]    Compiling pest_generator v2.7.1
[INFO] [stderr]     Checking bstr v1.6.0
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking clap v4.3.19
[INFO] [stderr]     Checking clap_complete v4.3.2
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]    Compiling pest_derive v2.7.1
[INFO] [stderr]     Checking toml v0.7.6
[INFO] [stderr]     Checking opener v0.6.1
[INFO] [stderr]     Checking handlebars v4.3.7
[INFO] [stderr]     Checking mdbook v0.4.32
[INFO] [stderr]     Checking mdbook-nixdoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.79s
[INFO] running `Command { std: "docker" "inspect" "821d580db03d2fca8c235f8584fda3e3062eaa87c36b0d03ab6734e60ee88add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "821d580db03d2fca8c235f8584fda3e3062eaa87c36b0d03ab6734e60ee88add", kill_on_drop: false }`
[INFO] [stdout] 821d580db03d2fca8c235f8584fda3e3062eaa87c36b0d03ab6734e60ee88add
[INFO] checking adisbladis/mdbook-nixdoc against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadisbladis%2Fmdbook-nixdoc" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/adisbladis/mdbook-nixdoc on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/adisbladis/mdbook-nixdoc
[INFO] finished tweaking git repo https://github.com/adisbladis/mdbook-nixdoc
[INFO] tweaked toml for git repo https://github.com/adisbladis/mdbook-nixdoc written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/adisbladis/mdbook-nixdoc 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 400930a1f651331f20527cf5bf61c99151482137200809c4541ed5601f002010
[INFO] running `Command { std: "docker" "start" "-a" "400930a1f651331f20527cf5bf61c99151482137200809c4541ed5601f002010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "400930a1f651331f20527cf5bf61c99151482137200809c4541ed5601f002010", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "400930a1f651331f20527cf5bf61c99151482137200809c4541ed5601f002010", kill_on_drop: false }`
[INFO] [stdout] 400930a1f651331f20527cf5bf61c99151482137200809c4541ed5601f002010
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4804b59554b6c808002e359e59b88ec837f3c50c49d7d2531635184cc8611e6
[INFO] running `Command { std: "docker" "start" "-a" "b4804b59554b6c808002e359e59b88ec837f3c50c49d7d2531635184cc8611e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.4
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]    Compiling serde v1.0.178
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling serde_derive v1.0.178
[INFO] [stderr]    Compiling thiserror-impl v1.0.44
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/serde_derive-1.0.178/src/lib_precompiled.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         panic!();
[INFO] [stdout]    |         ^^^^^^^^ cannot infer type
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_derive` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b4804b59554b6c808002e359e59b88ec837f3c50c49d7d2531635184cc8611e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4804b59554b6c808002e359e59b88ec837f3c50c49d7d2531635184cc8611e6", kill_on_drop: false }`
[INFO] [stdout] b4804b59554b6c808002e359e59b88ec837f3c50c49d7d2531635184cc8611e6