[INFO] cloning repository https://github.com/tfpk/mdbook-keeper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tfpk/mdbook-keeper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftfpk%2Fmdbook-keeper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftfpk%2Fmdbook-keeper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12f116d0840c69a6786dba3865768af3fde634f3
[INFO] testing tfpk/mdbook-keeper against try#6c5b2f071bf9fe3a4b05942f31d42d076171aa61 for pr-115315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftfpk%2Fmdbook-keeper" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tfpk/mdbook-keeper on toolchain 6c5b2f071bf9fe3a4b05942f31d42d076171aa61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tfpk/mdbook-keeper
[INFO] finished tweaking git repo https://github.com/tfpk/mdbook-keeper
[INFO] tweaked toml for git repo https://github.com/tfpk/mdbook-keeper written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tfpk/mdbook-keeper 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" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64aae1fd2b1fd0a6b354544f162301fa617f2b4ed1bb7d31f73d95734b4e316b
[INFO] running `Command { std: "docker" "start" "-a" "64aae1fd2b1fd0a6b354544f162301fa617f2b4ed1bb7d31f73d95734b4e316b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64aae1fd2b1fd0a6b354544f162301fa617f2b4ed1bb7d31f73d95734b4e316b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64aae1fd2b1fd0a6b354544f162301fa617f2b4ed1bb7d31f73d95734b4e316b", kill_on_drop: false }`
[INFO] [stdout] 64aae1fd2b1fd0a6b354544f162301fa617f2b4ed1bb7d31f73d95734b4e316b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d03021738284fac797b3727527c248f5e08b7e14279e2e45bedd84cbdbfc638f
[INFO] running `Command { std: "docker" "start" "-a" "d03021738284fac797b3727527c248f5e08b7e14279e2e45bedd84cbdbfc638f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]    Compiling serde_derive v1.0.183
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]    Compiling pin-project-lite v0.2.12
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.5
[INFO] [stderr]    Compiling aho-corasick v1.0.3
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling socket2 v0.5.3
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling cpufeatures v0.2.9
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling anstyle-parse v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling sha1 v0.10.5
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling url v2.4.0
[INFO] [stderr]    Compiling anstyle v1.0.1
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]    Compiling cc v1.0.82
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling clap_lex v0.5.0
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling regex-automata v0.3.6
[INFO] [stderr]    Compiling string_cache_codegen v0.5.2
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling try-lock v0.2.4
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling terminal_size v0.2.6
[INFO] [stderr]    Compiling is-terminal v0.4.9
[INFO] [stderr]    Compiling anstream v0.3.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling inotify v0.9.6
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling markup5ever v0.11.0
[INFO] [stderr]    Compiling clap_builder v4.3.21
[INFO] [stderr]    Compiling headers-core v0.2.0
[INFO] [stderr]    Compiling filetime v0.2.22
[INFO] [stderr]    Compiling pulldown-cmark v0.9.3
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling base64 v0.21.2
[INFO] [stderr]    Compiling gimli v0.27.3
[INFO] [stderr]    Compiling camino v1.1.6
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]    Compiling rustls-pemfile v1.0.3
[INFO] [stderr]    Compiling notify v6.0.1
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling headers v0.3.8
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling object v0.31.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling string_cache v0.8.7
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling os_str_bytes v6.5.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]    Compiling current_platform v0.2.0
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling fastrand v2.0.0
[INFO] [stderr]    Compiling chrono v0.4.26
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling tempfile v3.7.1
[INFO] [stderr]    Compiling cargo-platform v0.1.3
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling notify-debouncer-mini v0.3.0
[INFO] [stderr]    Compiling clap v4.3.21
[INFO] [stderr]    Compiling clap_complete v4.3.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling deunicode v0.4.4
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling regex v1.9.3
[INFO] [stderr]    Compiling bstr v1.6.0
[INFO] [stderr]    Compiling addr2line v0.20.0
[INFO] [stderr]    Compiling topological-sort v0.2.2
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/syn-1.0.109/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=ce38c9923a577149 -C extra-filename=-ce38c9923a577149 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-c308a930a0e3b3ae.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-88245c643d33b95d.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-27c541bdd3194d90.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d03021738284fac797b3727527c248f5e08b7e14279e2e45bedd84cbdbfc638f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d03021738284fac797b3727527c248f5e08b7e14279e2e45bedd84cbdbfc638f", kill_on_drop: false }`
[INFO] [stdout] d03021738284fac797b3727527c248f5e08b7e14279e2e45bedd84cbdbfc638f