[INFO] cloning repository https://github.com/terraphim/md-book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/terraphim/md-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterraphim%2Fmd-book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterraphim%2Fmd-book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e19e5c161eb72681849942fb823c5320060fe7c7
[INFO] checking terraphim/md-book against f4dd856795debe636f2ba39a900f162f5abeb7e8 for pr-160904
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterraphim%2Fmd-book" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/terraphim/md-book
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/terraphim/md-book
[INFO] tweaked toml for git repo https://github.com/terraphim/md-book written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/terraphim/md-book on toolchain f4dd856795debe636f2ba39a900f162f5abeb7e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f4dd856795debe636f2ba39a900f162f5abeb7e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/terraphim/md-book 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" "+f4dd856795debe636f2ba39a900f162f5abeb7e8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d8f97119ab78a9ed7ce930c232095801f395bb4eaf0f49fa08cb0263aae0f057
[INFO] running `Command { std: "docker" "start" "d8f97119ab78a9ed7ce930c232095801f395bb4eaf0f49fa08cb0263aae0f057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8f97119ab78a9ed7ce930c232095801f395bb4eaf0f49fa08cb0263aae0f057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d8f97119ab78a9ed7ce930c232095801f395bb4eaf0f49fa08cb0263aae0f057" "/opt/rustwide/cargo-home/bin/cargo" "+f4dd856795debe636f2ba39a900f162f5abeb7e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8f97119ab78a9ed7ce930c232095801f395bb4eaf0f49fa08cb0263aae0f057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d8f97119ab78a9ed7ce930c232095801f395bb4eaf0f49fa08cb0263aae0f057" "/opt/rustwide/cargo-home/bin/cargo" "+f4dd856795debe636f2ba39a900f162f5abeb7e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling syn v3.0.3
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking socket2 v0.6.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking indexmap v2.11.0
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.101
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]    Compiling phf_shared v0.11.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.20
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]     Checking encoding_rs v0.8.35
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking lexical-util v1.0.6
[INFO] [stderr]    Compiling phf_generator v0.11.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]    Compiling bytestring v1.4.0
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking clap_builder v4.5.47
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling phf_codegen v0.11.3
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling phf v0.11.3
[INFO] [stderr]    Compiling cc v1.2.36
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking dtoa v1.0.10
[INFO] [stderr]    Compiling regex-lite v0.1.7
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking dtoa-short v0.3.5
[INFO] [stderr]     Checking brotli v8.0.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[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/f4dd856795debe636f2ba39a900f162f5abeb7e8/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,unused-externs-silent --crate-type lib --emit=dep-info,metadata,link -Z embed-metadata=no -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=8e6d303f13a01f99 -C extra-filename=-cd49eab3eea7d690 --out-dir /opt/rustwide/target/debug/build/syn/cd49eab3eea7d690/out -L dependency=/opt/rustwide/target/debug/build/proc-macro2/a4916dcd2575db7e/out -L dependency=/opt/rustwide/target/debug/build/unicode-ident/b3925cc8f83e9ac1/out --extern proc_macro2=/opt/rustwide/target/debug/build/proc-macro2/a4916dcd2575db7e/out/libproc_macro2-a4916dcd2575db7e.rmeta --extern quote=/opt/rustwide/target/debug/build/quote/faae349f961da0a4/out/libquote-faae349f961da0a4.rmeta --extern unicode_ident=/opt/rustwide/target/debug/build/unicode-ident/b3925cc8f83e9ac1/out/libunicode_ident-b3925cc8f83e9ac1.rmeta --cap-lints allow --cap-lints=forbid --force-warn=unused_crate_dependencies` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d8f97119ab78a9ed7ce930c232095801f395bb4eaf0f49fa08cb0263aae0f057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8f97119ab78a9ed7ce930c232095801f395bb4eaf0f49fa08cb0263aae0f057", kill_on_drop: false }`
[INFO] [stdout] d8f97119ab78a9ed7ce930c232095801f395bb4eaf0f49fa08cb0263aae0f057
