[INFO] fetching crate safecoin-crate-features 1.8.12...
[INFO] checking safecoin-crate-features-1.8.12 against try#388b725dea7416978ab58ab1f908139d530308a7 for pr-99943
[INFO] extracting crate safecoin-crate-features 1.8.12 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate safecoin-crate-features 1.8.12 on toolchain 388b725dea7416978ab58ab1f908139d530308a7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate safecoin-crate-features 1.8.12
[INFO] finished tweaking crates.io crate safecoin-crate-features 1.8.12
[INFO] tweaked toml for crates.io crate safecoin-crate-features 1.8.12 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6de6362c253c3007944c80b0852cb32d58f4125af6b5e1cd4273cbad59d257f8
[INFO] running `Command { std: "docker" "start" "-a" "6de6362c253c3007944c80b0852cb32d58f4125af6b5e1cd4273cbad59d257f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6de6362c253c3007944c80b0852cb32d58f4125af6b5e1cd4273cbad59d257f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6de6362c253c3007944c80b0852cb32d58f4125af6b5e1cd4273cbad59d257f8", kill_on_drop: false }`
[INFO] [stdout] 6de6362c253c3007944c80b0852cb32d58f4125af6b5e1cd4273cbad59d257f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8972ef8c8b3d30a6faa2639f32c4aebcfcc374eb39413151b8d8516f77dfab1b
[INFO] running `Command { std: "docker" "start" "-a" "8972ef8c8b3d30a6faa2639f32c4aebcfcc374eb39413151b8d8516f77dfab1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking bytes v1.2.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking itoa v1.0.3
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking tracing-core v0.1.29
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling rustls v0.20.6
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking tracing v0.1.36
[INFO] [stderr]     Checking futures-sink v0.3.24
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stderr]     Checking futures-io v0.3.24
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking percent-encoding v2.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking form_urlencoded v1.1.0
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling zeroize_derive v1.3.2
[INFO] [stderr]     Checking tower-service v0.3.2
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]     Checking tokio-util v0.7.4
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]    Compiling backtrace v0.3.66
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking gimli v0.26.2
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking signature v1.6.3
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking h2 v0.3.14
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]    Compiling winapi v0.3.9
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking tokio-rustls v0.23.4
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking curve25519-dalek v3.2.1
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking rustls-pemfile v1.0.1
[INFO] [stderr]     Checking webpki-roots v0.22.5
[INFO] [stderr]     Checking jobserver v0.1.25
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking object v0.29.0
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking ipnet v2.5.0
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking curve25519-dalek v2.1.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --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"' -C metadata=6a6b75730aebd54c -C extra-filename=-6a6b75730aebd54c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-2f4c1f003d060bde.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d8851930f86d9bf3.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-dfa09cd0525232d0.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8972ef8c8b3d30a6faa2639f32c4aebcfcc374eb39413151b8d8516f77dfab1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8972ef8c8b3d30a6faa2639f32c4aebcfcc374eb39413151b8d8516f77dfab1b", kill_on_drop: false }`
[INFO] [stdout] 8972ef8c8b3d30a6faa2639f32c4aebcfcc374eb39413151b8d8516f77dfab1b