[INFO] fetching crate cargo-crate-api 0.0.1...
[INFO] checking cargo-crate-api-0.0.1 against try#42d1facfffa1a5357d6d62815f7be91f8ad69ed8 for pr-95474
[INFO] extracting crate cargo-crate-api 0.0.1 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate cargo-crate-api 0.0.1 on toolchain 42d1facfffa1a5357d6d62815f7be91f8ad69ed8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+42d1facfffa1a5357d6d62815f7be91f8ad69ed8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-crate-api 0.0.1
[INFO] finished tweaking crates.io crate cargo-crate-api 0.0.1
[INFO] tweaked toml for crates.io crate cargo-crate-api 0.0.1 written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] crate crates.io crate cargo-crate-api 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+42d1facfffa1a5357d6d62815f7be91f8ad69ed8" "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-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+42d1facfffa1a5357d6d62815f7be91f8ad69ed8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c72dd8a4bd5cc883efc885739e431b879e82b43dd3c23a07bc321d606817b824
[INFO] running `Command { std: "docker" "start" "-a" "c72dd8a4bd5cc883efc885739e431b879e82b43dd3c23a07bc321d606817b824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c72dd8a4bd5cc883efc885739e431b879e82b43dd3c23a07bc321d606817b824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c72dd8a4bd5cc883efc885739e431b879e82b43dd3c23a07bc321d606817b824", kill_on_drop: false }`
[INFO] [stdout] c72dd8a4bd5cc883efc885739e431b879e82b43dd3c23a07bc321d606817b824
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+42d1facfffa1a5357d6d62815f7be91f8ad69ed8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45f20ede80cd4076fa5f055c0964f124d3e9d70eb7fc14e032e76f0467d9088f
[INFO] running `Command { std: "docker" "start" "-a" "45f20ede80cd4076fa5f055c0964f124d3e9d70eb7fc14e032e76f0467d9088f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling camino v1.0.7
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking concolor-query v0.0.5
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling eyre v0.6.6
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking termtree v0.2.4
[INFO] [stderr]     Checking yansi v0.5.0
[INFO] [stderr]     Checking concolor-control v0.0.7
[INFO] [stderr]     Checking proc-exit v1.0.3
[INFO] [stderr]     Checking itertools v0.10.3
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking combine v4.6.3
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking concolor v0.0.8
[INFO] [stderr]    Compiling libz-sys v1.1.3
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling libgit2-sys v0.12.26+1.3.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking os_type v2.4.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.86/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 -C debuginfo=2 --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"' -C metadata=18e4ec74dfc47500 -C extra-filename=-18e4ec74dfc47500 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d937f1f82ffb437d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-4040e84c0ddb8645.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3c8a88541efd8c80.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" "45f20ede80cd4076fa5f055c0964f124d3e9d70eb7fc14e032e76f0467d9088f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45f20ede80cd4076fa5f055c0964f124d3e9d70eb7fc14e032e76f0467d9088f", kill_on_drop: false }`
[INFO] [stdout] 45f20ede80cd4076fa5f055c0964f124d3e9d70eb7fc14e032e76f0467d9088f