[INFO] fetching crate kind2 0.2.79...
[INFO] testing kind2-0.2.79 against master#159ba8a92c9e2fa4121f106176309521f4af87e9+rustflags=-Copt-level=3 for pr-107051
[INFO] extracting crate kind2 0.2.79 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate kind2 0.2.79 on toolchain 159ba8a92c9e2fa4121f106176309521f4af87e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kind2 0.2.79
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate kind2 0.2.79
[INFO] tweaked toml for crates.io crate kind2 0.2.79 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate kind2 0.2.79 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" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded highlight_error v0.1.1
[INFO] [stderr]   Downloaded itertools v0.10.4
[INFO] [stderr]   Downloaded ntest_timeout v0.8.1
[INFO] [stderr]   Downloaded ntest v0.8.1
[INFO] [stderr]   Downloaded ntest_proc_macro_helper v0.8.0
[INFO] [stderr]   Downloaded tokio v1.21.1
[INFO] [stderr]   Downloaded ntest_test_cases v0.8.0
[INFO] [stderr]   Downloaded hvm v0.1.88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26a034b70660a57a0ad030ea2497dc092e94d84956a49c624f4ed7eb631a474a
[INFO] running `Command { std: "docker" "start" "-a" "26a034b70660a57a0ad030ea2497dc092e94d84956a49c624f4ed7eb631a474a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26a034b70660a57a0ad030ea2497dc092e94d84956a49c624f4ed7eb631a474a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26a034b70660a57a0ad030ea2497dc092e94d84956a49c624f4ed7eb631a474a", kill_on_drop: false }`
[INFO] [stdout] 26a034b70660a57a0ad030ea2497dc092e94d84956a49c624f4ed7eb631a474a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 415b1cdff32971aa0df98f8b09e3dbee709cdaa2c7bb9fa94c6e8fba042e6f3e
[INFO] running `Command { std: "docker" "start" "-a" "415b1cdff32971aa0df98f8b09e3dbee709cdaa2c7bb9fa94c6e8fba042e6f3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling once_cell v1.14.0
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.83
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling tracing-core v0.1.29
[INFO] [stderr]    Compiling openssl v0.10.41
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling bumpalo v3.11.0
[INFO] [stderr]    Compiling tracing v0.1.36
[INFO] [stderr]    Compiling futures-sink v0.3.24
[INFO] [stderr]    Compiling native-tls v0.2.10
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling http v0.2.8
[INFO] [stderr]    Compiling futures-io v0.3.24
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.83
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling mio v0.8.4
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling tokio v1.21.1
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]    Compiling unicode-bidi v0.3.8
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling os_str_bytes v6.3.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling clap_lex v0.2.4
[INFO] [stderr]    Compiling url v2.3.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]    Compiling textwrap v0.15.1
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling ipnet v2.5.0
[INFO] [stderr]    Compiling itertools v0.10.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling highlight_error v0.1.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.83
[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-1.0.99/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"' --cfg 'feature="visit"' -C metadata=f356ed6215082087 -C extra-filename=-f356ed6215082087 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ef575448982cb45b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-4e3dfdabab44dc07.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-0ffae4fba3cf9146.rmeta --cap-lints allow --cap-lints=forbid -Copt-level=3` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "415b1cdff32971aa0df98f8b09e3dbee709cdaa2c7bb9fa94c6e8fba042e6f3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "415b1cdff32971aa0df98f8b09e3dbee709cdaa2c7bb9fa94c6e8fba042e6f3e", kill_on_drop: false }`
[INFO] [stdout] 415b1cdff32971aa0df98f8b09e3dbee709cdaa2c7bb9fa94c6e8fba042e6f3e