[INFO] fetching crate series-troxide 0.5.1...
[INFO] testing series-troxide-0.5.1 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate series-troxide 0.5.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate series-troxide 0.5.1
[INFO] finished tweaking crates.io crate series-troxide 0.5.1
[INFO] tweaked toml for crates.io crate series-troxide 0.5.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate series-troxide 0.5.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate series-troxide 0.5.1 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 037a810b5bd5ee6d5c508320ee21281b0d5bc8e5cd699fc7bb618f6acd9f1d09
[INFO] running `Command { std: "docker" "start" "037a810b5bd5ee6d5c508320ee21281b0d5bc8e5cd699fc7bb618f6acd9f1d09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "037a810b5bd5ee6d5c508320ee21281b0d5bc8e5cd699fc7bb618f6acd9f1d09", 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" "037a810b5bd5ee6d5c508320ee21281b0d5bc8e5cd699fc7bb618f6acd9f1d09" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "037a810b5bd5ee6d5c508320ee21281b0d5bc8e5cd699fc7bb618f6acd9f1d09", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "037a810b5bd5ee6d5c508320ee21281b0d5bc8e5cd699fc7bb618f6acd9f1d09" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
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[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling arrayref v0.3.7
[INFO] [stderr]    Compiling ttf-parser v0.19.1
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]    Compiling xml-rs v0.8.18
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling flate2 v1.0.27
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling euclid v0.22.9
[INFO] [stderr]    Compiling nix v0.25.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling raw-window-handle v0.5.2
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.3
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling fdeflate v0.3.0
[INFO] [stderr]    Compiling mio v0.8.9
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling serde_spanned v0.6.3
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling allocator-api2 v0.2.16
[INFO] [stderr]    Compiling bytes v1.5.0
[INFO] [stderr]    Compiling xmlparser v0.13.5
[INFO] [stderr]    Compiling unicode-general-category v0.6.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling roxmltree v0.18.0
[INFO] [stderr]    Compiling png v0.17.10
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling palette v0.7.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling signal-hook-registry v1.4.1
[INFO] [stderr]    Compiling unicode-bidi-mirroring v0.1.0
[INFO] [stderr]    Compiling unicode-script v0.5.5
[INFO] [stderr]    Compiling unicode-ccc v0.1.2
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling fast-srgb8 v1.0.0
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling fontconfig-parser v0.5.3
[INFO] [stderr]    Compiling rayon v1.7.0
[INFO] [stderr]    Compiling twox-hash v1.6.3
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling toml v0.7.8
[INFO] [stderr]    Compiling lyon_geom v1.0.4
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stderr]    Compiling memmap2 v0.6.2
[INFO] [stderr]    Compiling kurbo v0.9.5
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling weezl v0.1.7
[INFO] [stderr]    Compiling system-deps v6.1.1
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling fontdb v0.14.1
[INFO] [stderr]    Compiling lyon_path v1.0.4
[INFO] [stderr]    Compiling wayland-commons v0.29.5
[INFO] [stderr]    Compiling svgtypes v0.11.0
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling nanorand v0.7.0
[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/1.99.0-beta.8-x86_64-unknown-linux-gnu/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.46/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no -C debug-assertions=on --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-mut"' --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=56484817159b2ba9 -C extra-filename=-153cd906a9df3ff7 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-daf4080377099f45.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5ec153d441c4ecb9.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-92b448f1fe4b51a6.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/1.99.0-beta.8-x86_64-unknown-linux-gnu/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 opt-level=3 -C embed-bitcode=no -C debug-assertions=on --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"' --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=60eafb061200428a -C extra-filename=-b59f24c2d7038b8d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-daf4080377099f45.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-5ec153d441c4ecb9.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-92b448f1fe4b51a6.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "037a810b5bd5ee6d5c508320ee21281b0d5bc8e5cd699fc7bb618f6acd9f1d09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "037a810b5bd5ee6d5c508320ee21281b0d5bc8e5cd699fc7bb618f6acd9f1d09", kill_on_drop: false }`
[INFO] [stdout] 037a810b5bd5ee6d5c508320ee21281b0d5bc8e5cd699fc7bb618f6acd9f1d09
