[INFO] cloning repository https://github.com/terry-u16/rust-library
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/terry-u16/rust-library" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterry-u16%2Frust-library", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterry-u16%2Frust-library'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d24be899671ba0e429256290d59995590146cf73
[INFO] testing terry-u16/rust-library against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fterry-u16%2Frust-library" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/terry-u16/rust-library on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/terry-u16/rust-library
[INFO] finished tweaking git repo https://github.com/terry-u16/rust-library
[INFO] tweaked toml for git repo https://github.com/terry-u16/rust-library written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/terry-u16/rust-library 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded varisat-dimacs v0.2.2
[INFO] [stderr]   Downloaded partial_ref_derive v0.3.3
[INFO] [stderr]   Downloaded vec_mut_scan v0.3.0
[INFO] [stderr]   Downloaded varisat-internal-macros v0.2.2
[INFO] [stderr]   Downloaded varisat-formula v0.2.2
[INFO] [stderr]   Downloaded varisat-internal-proof v0.2.2
[INFO] [stderr]   Downloaded partial_ref v0.3.3
[INFO] [stderr]   Downloaded memoise v0.3.2
[INFO] [stderr]   Downloaded varisat v0.2.2
[INFO] [stderr]   Downloaded stringly_conversions v0.1.1
[INFO] [stderr]   Downloaded amplify_derive v2.11.3
[INFO] [stderr]   Downloaded easy-ext v1.0.1
[INFO] [stderr]   Downloaded indexing v0.4.1
[INFO] [stderr]   Downloaded pathfinding v4.3.0
[INFO] [stderr]   Downloaded hashbag v0.1.11
[INFO] [stderr]   Downloaded ac-library-rs v0.1.1
[INFO] [stderr]   Downloaded im-rc v15.1.0
[INFO] [stderr]   Downloaded target-features v0.1.4
[INFO] [stderr]   Downloaded proconio v0.4.5
[INFO] [stderr]   Downloaded glidesort v0.1.2
[INFO] [stderr]   Downloaded multimap v0.9.0
[INFO] [stderr]   Downloaded multiversion v0.7.2
[INFO] [stderr]   Downloaded rand_hc v0.3.2
[INFO] [stderr]   Downloaded recur-fn v2.2.0
[INFO] [stderr]   Downloaded varisat-checker v0.2.2
[INFO] [stderr]   Downloaded amplify v3.14.2
[INFO] [stderr]   Downloaded argio-macro v0.2.0
[INFO] [stderr]   Downloaded argio v0.2.0
[INFO] [stderr]   Downloaded omniswap v0.1.0
[INFO] [stderr]   Downloaded proconio-derive v0.2.1
[INFO] [stderr]   Downloaded text_io v0.1.12
[INFO] [stderr]   Downloaded btreemultimap v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c18ce021b6a620dc5c842cddf5c1e94bf6f656009fd393846b0c14dbee4c64ff
[INFO] running `Command { std: "docker" "start" "-a" "c18ce021b6a620dc5c842cddf5c1e94bf6f656009fd393846b0c14dbee4c64ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c18ce021b6a620dc5c842cddf5c1e94bf6f656009fd393846b0c14dbee4c64ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c18ce021b6a620dc5c842cddf5c1e94bf6f656009fd393846b0c14dbee4c64ff", kill_on_drop: false }`
[INFO] [stdout] c18ce021b6a620dc5c842cddf5c1e94bf6f656009fd393846b0c14dbee4c64ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b77799045ef1fbf73930fe4510892e0238cd6d6214f71a6debdeb263e8c46845
[INFO] running `Command { std: "docker" "start" "-a" "b77799045ef1fbf73930fe4510892e0238cd6d6214f71a6debdeb263e8c46845", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]    Compiling memchr v2.6.3
[INFO] [stderr]    Compiling regex-syntax v0.7.5
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling thiserror v1.0.48
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling target-features v0.1.4
[INFO] [stderr]    Compiling bytemuck v1.14.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling varisat-formula v0.2.2
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling safe_arch v0.7.1
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling matrixmultiply v0.3.7
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling arbitrary v1.3.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling wide v0.7.11
[INFO] [stderr]    Compiling varisat-internal-proof v0.2.2
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling fixedbitset v0.4.2
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling aho-corasick v1.1.1
[INFO] [stderr]    Compiling varisat v0.2.2
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling im-rc v15.1.0
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling az v1.2.1
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling wyz v0.5.1
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling stringly_conversions v0.1.1
[INFO] [stderr]    Compiling vec_mut_scan v0.3.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling funty v2.0.0
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling leb128 v0.2.5
[INFO] [stderr]    Compiling amplify_num v0.4.1
[INFO] [stderr]    Compiling sized-chunks v0.6.5
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling regex-automata v0.3.8
[INFO] [stderr]    Compiling bitvec v1.0.1
[INFO] [stderr]    Compiling petgraph v0.6.3
[INFO] [stderr]    Compiling num-complex v0.4.3
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling integer-sqrt v0.1.5
[INFO] [stderr]    Compiling simba v0.8.1
[INFO] [stderr]    Compiling ordered-float v2.10.0
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling alga v0.9.3
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling indexmap v2.0.0
[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/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/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 embed-bitcode=no --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"' --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=f83f82b999275794 -C extra-filename=-3fd63307a672ea5a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-60dc869d202a21e0.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-2f74ba056fed67e6.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-f2de522ba645d884.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" "b77799045ef1fbf73930fe4510892e0238cd6d6214f71a6debdeb263e8c46845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b77799045ef1fbf73930fe4510892e0238cd6d6214f71a6debdeb263e8c46845", kill_on_drop: false }`
[INFO] [stdout] b77799045ef1fbf73930fe4510892e0238cd6d6214f71a6debdeb263e8c46845