[INFO] fetching crate mdbook-keeper 0.5.0...
[INFO] testing mdbook-keeper-0.5.0 against try#b8e88e5ddf5521a9f43ee3f62a702388c713e4bb for pr-155114
[INFO] extracting crate mdbook-keeper 0.5.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate mdbook-keeper 0.5.0
[INFO] finished tweaking crates.io crate mdbook-keeper 0.5.0
[INFO] tweaked toml for crates.io crate mdbook-keeper 0.5.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdbook-keeper 0.5.0 on toolchain b8e88e5ddf5521a9f43ee3f62a702388c713e4bb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b8e88e5ddf5521a9f43ee3f62a702388c713e4bb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mdbook-keeper 0.5.0 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" "+b8e88e5ddf5521a9f43ee3f62a702388c713e4bb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b8e88e5ddf5521a9f43ee3f62a702388c713e4bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b65e8304cb37a30b798b32f15ae5cc920cd3b35be13369b69cce457e4df49fad
[INFO] running `Command { std: "docker" "start" "-a" "b65e8304cb37a30b798b32f15ae5cc920cd3b35be13369b69cce457e4df49fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b65e8304cb37a30b798b32f15ae5cc920cd3b35be13369b69cce457e4df49fad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b65e8304cb37a30b798b32f15ae5cc920cd3b35be13369b69cce457e4df49fad", kill_on_drop: false }`
[INFO] [stdout] b65e8304cb37a30b798b32f15ae5cc920cd3b35be13369b69cce457e4df49fad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+b8e88e5ddf5521a9f43ee3f62a702388c713e4bb" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c6e3f25d503d62969a15b5f07145e8d4dc89dae15d8e3463b1fcc44205b1824
[INFO] running `Command { std: "docker" "start" "-a" "4c6e3f25d503d62969a15b5f07145e8d4dc89dae15d8e3463b1fcc44205b1824", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling version_check v0.9.4
[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 memchr v2.5.0
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling bytes v1.4.0
[INFO] [stderr]    Compiling thiserror v1.0.44
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling pin-project-lite v0.2.12
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]    Compiling linux-raw-sys v0.4.5
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling bitflags v2.4.0
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-sink v0.3.28
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling quote v1.0.32
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling cpufeatures v0.2.9
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling http v0.2.9
[INFO] [stderr]    Compiling aho-corasick v1.0.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rustix v0.37.23
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling smallvec v1.11.0
[INFO] [stderr]    Compiling syn v2.0.28
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tracing-core v0.1.31
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling anstyle-parse v0.2.1
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling futf v0.1.5
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]    Compiling mio v0.8.8
[INFO] [stderr]    Compiling socket2 v0.5.3
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling regex-automata v0.3.6
[INFO] [stderr]    Compiling block-buffer v0.10.4
[INFO] [stderr]    Compiling phf_generator v0.10.0
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling phf_codegen v0.10.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.2
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling sha1 v0.10.5
[INFO] [stderr]    Compiling url v2.4.0
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling markup5ever v0.11.0
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling anstyle v1.0.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling is-terminal v0.4.9
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling tendril v0.4.3
[INFO] [stderr]    Compiling anstream v0.3.2
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling cc v1.0.82
[INFO] [stderr]    Compiling phf v0.10.1
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]    Compiling clap_lex v0.5.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling try-lock v0.2.4
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling want v0.3.1
[INFO] [stderr]    Compiling inotify v0.9.6
[INFO] [stderr]    Compiling socket2 v0.4.9
[INFO] [stderr]    Compiling filetime v0.2.22
[INFO] [stderr]    Compiling terminal_size v0.2.6
[INFO] [stderr]    Compiling string_cache v0.8.7
[INFO] [stderr]    Compiling headers-core v0.2.0
[INFO] [stderr]    Compiling clap_builder v4.3.21
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling base64 v0.21.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]    Compiling gimli v0.27.3
[INFO] [stderr]    Compiling pulldown-cmark v0.9.3
[INFO] [stderr]    Compiling camino v1.1.6
[INFO] [stderr]    Compiling rustls-pemfile v1.0.3
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stderr]    Compiling notify v6.0.1
[INFO] [stderr]    Compiling headers v0.3.8
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling object v0.31.1
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling thread_local v1.1.7
[INFO] [stderr]    Compiling current_platform v0.2.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.23
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling iana-time-zone v0.1.57
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]    Compiling os_str_bytes v6.5.1
[INFO] [stderr]    Compiling fastrand v2.0.0
[INFO] [stderr]    Compiling chrono v0.4.26
[INFO] [stderr]    Compiling notify-debouncer-mini v0.3.0
[INFO] [stderr]    Compiling tempfile v3.7.1
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling toml v0.5.11
[INFO] [stderr]    Compiling thiserror-impl v1.0.44
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.28
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]    Compiling cargo-platform v0.1.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling deunicode v0.4.4
[INFO] [stderr]    Compiling topological-sort v0.2.2
[INFO] [stderr]    Compiling textwrap v0.16.0
[INFO] [stderr]    Compiling tokio v1.31.0
[INFO] [stderr]    Compiling clap v4.3.21
[INFO] [stderr]    Compiling slug v0.1.4
[INFO] [stderr]    Compiling clap_complete v4.3.2
[INFO] [stderr]    Compiling clap v3.2.25
[INFO] [stderr]    Compiling colored v2.0.4
[INFO] [stderr]    Compiling regex v1.9.3
[INFO] [stderr]    Compiling bstr v1.6.0
[INFO] [stderr]    Compiling pest v2.7.2
[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/b8e88e5ddf5521a9f43ee3f62a702388c713e4bb/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/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"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=40294c1f72c70abe -C extra-filename=-721352a7a07c4870 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-13b3efd1536aecb7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-84df01b233dcc6c8.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-395b3411aefeb22d.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" "4c6e3f25d503d62969a15b5f07145e8d4dc89dae15d8e3463b1fcc44205b1824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c6e3f25d503d62969a15b5f07145e8d4dc89dae15d8e3463b1fcc44205b1824", kill_on_drop: false }`
[INFO] [stdout] 4c6e3f25d503d62969a15b5f07145e8d4dc89dae15d8e3463b1fcc44205b1824
