[INFO] cloning repository https://github.com/cobalt-org/cobalt.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cobalt-org/cobalt.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcobalt-org%2Fcobalt.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcobalt-org%2Fcobalt.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e5c42be2319a330b9e3de5a5fa28c371efcc7c17
[INFO] testing cobalt-org/cobalt.rs against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcobalt-org%2Fcobalt.rs" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cobalt-org/cobalt.rs on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cobalt-org/cobalt.rs
[INFO] finished tweaking git repo https://github.com/cobalt-org/cobalt.rs
[INFO] tweaked toml for git repo https://github.com/cobalt-org/cobalt.rs written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/cobalt-org/cobalt.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b25216d19039490296ef7c9c0ab7befe968c745f7f1121708674404577a3bbe5
[INFO] running `Command { std: "docker" "start" "-a" "b25216d19039490296ef7c9c0ab7befe968c745f7f1121708674404577a3bbe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b25216d19039490296ef7c9c0ab7befe968c745f7f1121708674404577a3bbe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b25216d19039490296ef7c9c0ab7befe968c745f7f1121708674404577a3bbe5", kill_on_drop: false }`
[INFO] [stdout] b25216d19039490296ef7c9c0ab7befe968c745f7f1121708674404577a3bbe5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 28ff7ff1d220172d0a44a45b7291e4e7c8446d4825d2a4e98da88b4c0471597b
[INFO] running `Command { std: "docker" "start" "-a" "28ff7ff1d220172d0a44a45b7291e4e7c8446d4825d2a4e98da88b4c0471597b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling utf8-width v0.1.5
[INFO] [stderr]    Compiling macro-utils v0.1.3
[INFO] [stderr]    Compiling deunicode v1.3.0
[INFO] [stderr]    Compiling ascii v1.0.0
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling cow-utils v0.1.2
[INFO] [stderr]    Compiling chunked_transfer v1.4.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling itertools v0.10.0
[INFO] [stderr]    Compiling line-wrap v0.1.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling html-escape v0.2.9
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling minifier v0.0.41
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.18
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling quick-xml v0.20.0
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling walkdir v0.1.8
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling ghp v0.1.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling which v4.1.0
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling inotify v0.7.1
[INFO] [stderr]    Compiling backtrace v0.3.59
[INFO] [stderr]    Compiling open v1.7.0
[INFO] [stderr]    Compiling proc-quote-impl v0.3.2
[INFO] [stderr]    Compiling sass-sys v0.4.21
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling notify v4.0.17
[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-1.0.72/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --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="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=d5a3fae965761268 -C extra-filename=-d5a3fae965761268 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-223cc1bf4c7d615f.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-9c9c6fb7ecc8d1ce.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-44670c754cca1080.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "28ff7ff1d220172d0a44a45b7291e4e7c8446d4825d2a4e98da88b4c0471597b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28ff7ff1d220172d0a44a45b7291e4e7c8446d4825d2a4e98da88b4c0471597b", kill_on_drop: false }`
[INFO] [stdout] 28ff7ff1d220172d0a44a45b7291e4e7c8446d4825d2a4e98da88b4c0471597b