[INFO] fetching crate bitsy-lang 0.4.0...
[INFO] checking bitsy-lang-0.4.0 against 895980e0290783bb09b1ccf1b11f14eb09b10430 for pr-160186
[INFO] extracting crate bitsy-lang 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate bitsy-lang 0.4.0
[INFO] finished tweaking crates.io crate bitsy-lang 0.4.0
[INFO] tweaked toml for crates.io crate bitsy-lang 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate bitsy-lang 0.4.0 on toolchain 895980e0290783bb09b1ccf1b11f14eb09b10430
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate bitsy-lang 0.4.0 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" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] eccce9b806f5f2ea940cb7a22adca584ca948dda7716bdbc8195ba209c36df36
[INFO] running `Command { std: "docker" "start" "eccce9b806f5f2ea940cb7a22adca584ca948dda7716bdbc8195ba209c36df36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eccce9b806f5f2ea940cb7a22adca584ca948dda7716bdbc8195ba209c36df36", 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" "eccce9b806f5f2ea940cb7a22adca584ca948dda7716bdbc8195ba209c36df36" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eccce9b806f5f2ea940cb7a22adca584ca948dda7716bdbc8195ba209c36df36", 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" "eccce9b806f5f2ea940cb7a22adca584ca948dda7716bdbc8195ba209c36df36" "/opt/rustwide/cargo-home/bin/cargo" "+895980e0290783bb09b1ccf1b11f14eb09b10430" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling rustix v0.38.25
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling linux-raw-sys v0.4.11
[INFO] [stderr]    Compiling hashbrown v0.14.2
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling pico-args v0.5.0
[INFO] [stderr]     Checking anstyle v1.0.4
[INFO] [stderr]    Compiling ena v0.14.2
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking anstyle-query v1.0.1
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]     Checking anstream v0.6.4
[INFO] [stderr]    Compiling is-terminal v0.4.9
[INFO] [stderr]     Checking phf_shared v0.10.0
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]    Compiling string_cache v0.8.7
[INFO] [stderr]     Checking clap_lex v0.6.0
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]     Checking radix_trie v0.2.1
[INFO] [stderr]     Checking clap_builder v4.4.11
[INFO] [stderr]    Compiling petgraph v0.6.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking home v0.5.5
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking fd-lock v3.0.13
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking fern v0.6.2
[INFO] [stderr]    Compiling regex v1.10.2
[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/895980e0290783bb09b1ccf1b11f14eb09b10430/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.39/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="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=fbdd1b979101479a -C extra-filename=-5b7a06e568d6284a --out-dir /opt/rustwide/target/debug/build/syn/5b7a06e568d6284a/out -L dependency=/opt/rustwide/target/debug/build/proc-macro2/a4809e20494045cd/out -L dependency=/opt/rustwide/target/debug/build/unicode-ident/f2de522ba645d884/out --extern proc_macro2=/opt/rustwide/target/debug/build/proc-macro2/a4809e20494045cd/out/libproc_macro2-a4809e20494045cd.rmeta --extern quote=/opt/rustwide/target/debug/build/quote/93f906c40d6ffa20/out/libquote-93f906c40d6ffa20.rmeta --extern unicode_ident=/opt/rustwide/target/debug/build/unicode-ident/f2de522ba645d884/out/libunicode_ident-f2de522ba645d884.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" "eccce9b806f5f2ea940cb7a22adca584ca948dda7716bdbc8195ba209c36df36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eccce9b806f5f2ea940cb7a22adca584ca948dda7716bdbc8195ba209c36df36", kill_on_drop: false }`
[INFO] [stdout] eccce9b806f5f2ea940cb7a22adca584ca948dda7716bdbc8195ba209c36df36