[INFO] fetching crate mdbook_rash 2.18.0...
[INFO] checking mdbook_rash-2.18.0 against try#63132bd615c9bf75e93af8405d00064212331708 for pr-153975
[INFO] extracting crate mdbook_rash 2.18.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate mdbook_rash 2.18.0
[INFO] finished tweaking crates.io crate mdbook_rash 2.18.0
[INFO] tweaked toml for crates.io crate mdbook_rash 2.18.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mdbook_rash 2.18.0 on toolchain 63132bd615c9bf75e93af8405d00064212331708
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mdbook_rash 2.18.0 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" "+63132bd615c9bf75e93af8405d00064212331708" "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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ba957b5cb6f72bd00592a0f690fca587e5201c153d28bb388f5e99f041c1ab6
[INFO] running `Command { std: "docker" "start" "-a" "0ba957b5cb6f72bd00592a0f690fca587e5201c153d28bb388f5e99f041c1ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ba957b5cb6f72bd00592a0f690fca587e5201c153d28bb388f5e99f041c1ab6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ba957b5cb6f72bd00592a0f690fca587e5201c153d28bb388f5e99f041c1ab6", kill_on_drop: false }`
[INFO] [stdout] 0ba957b5cb6f72bd00592a0f690fca587e5201c153d28bb388f5e99f041c1ab6
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+63132bd615c9bf75e93af8405d00064212331708" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2cf64399989e3f99639973e22fe258f135451c0880799ba3f417225b74173d0d
[INFO] running `Command { std: "docker" "start" "-a" "2cf64399989e3f99639973e22fe258f135451c0880799ba3f417225b74173d0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]    Compiling aws-lc-rs v1.16.0
[INFO] [stderr]     Checking futures-sink v0.3.32
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling siphasher v1.0.2
[INFO] [stderr]     Checking linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling fastrand v2.3.0
[INFO] [stderr]     Checking icu_normalizer v2.1.1
[INFO] [stderr]     Checking futures-util v0.3.32
[INFO] [stderr]    Compiling thiserror-impl v2.0.18
[INFO] [stderr]     Checking futures-channel v0.3.32
[INFO] [stderr]    Compiling phf_shared v0.13.1
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]     Checking rand_core v0.10.0
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]    Compiling getrandom v0.4.1
[INFO] [stderr]     Checking toml_parser v1.0.9+spec-1.1.0
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]    Compiling phf_generator v0.13.1
[INFO] [stderr]    Compiling string_cache_codegen v0.6.1
[INFO] [stderr]    Compiling phf_codegen v0.13.1
[INFO] [stderr]     Checking serde_spanned v1.0.4
[INFO] [stderr]     Checking toml_datetime v0.7.5+spec-1.1.0
[INFO] [stderr]     Checking toml_writer v1.0.6+spec-1.1.0
[INFO] [stderr]     Checking url v2.5.8
[INFO] [stderr]    Compiling ref-cast-impl v1.0.25
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling pulldown-cmark v0.13.0
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling regex-syntax v0.8.9
[INFO] [stderr]     Checking phf v0.13.1
[INFO] [stderr]     Checking toml v0.9.12+spec-1.1.0
[INFO] [stderr]    Compiling web_atoms v0.2.3
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling cc v1.2.56
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]     Checking pulldown-cmark-escape v0.11.0
[INFO] [stderr]    Compiling ryu v1.0.23
[INFO] [stderr]     Checking thiserror v2.0.18
[INFO] [stderr]     Checking mio v1.1.1
[INFO] [stderr]     Checking socket2 v0.6.2
[INFO] [stderr]     Checking getrandom v0.2.17
[INFO] [stderr]     Checking parking_lot_core v0.9.12
[INFO] [stderr]     Checking simd-adler32 v0.3.8
[INFO] [stderr]     Checking dirs-sys v0.5.0
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]     Checking tokio v1.50.0
[INFO] [stderr]     Checking parking_lot v0.12.5
[INFO] [stderr]     Checking deranged v0.5.6
[INFO] [stderr]    Compiling pest_generator v2.8.6
[INFO] [stderr]     Checking string_cache v0.9.0
[INFO] [stderr]    Compiling schemars_derive v1.2.1
[INFO] [stderr]    Compiling nix v0.30.1
[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/63132bd615c9bf75e93af8405d00064212331708/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --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=02b38bf6363061b9 -C extra-filename=-3e0a2468d1fb4a17 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d4cb564e807a9cd7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-aa2c5b8519914b46.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-8c98a1a0e58216a9.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" "2cf64399989e3f99639973e22fe258f135451c0880799ba3f417225b74173d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cf64399989e3f99639973e22fe258f135451c0880799ba3f417225b74173d0d", kill_on_drop: false }`
[INFO] [stdout] 2cf64399989e3f99639973e22fe258f135451c0880799ba3f417225b74173d0d
