[INFO] updating cached repository https://github.com/phiresky/track-pc-usage-rs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/phiresky/track-pc-usage-rs
[INFO] [stderr]    d32c295..909bba3  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 909bba336f7a9ee12a537d33cc288bb5fcbe0665
[INFO] checking phiresky/track-pc-usage-rs against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphiresky%2Ftrack-pc-usage-rs" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/phiresky/track-pc-usage-rs on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/phiresky/track-pc-usage-rs
[INFO] finished tweaking git repo https://github.com/phiresky/track-pc-usage-rs
[INFO] tweaked toml for git repo https://github.com/phiresky/track-pc-usage-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/phiresky/track-pc-usage-rs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded enum_dispatch v0.3.0
[INFO] [stderr]   Downloaded x11rb v0.4.1
[INFO] [stderr]   Downloaded sysinfo v0.13.3
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2fb3aa209a540a294ff1b09e9ef7dec2cce1dcce21dee8bc9b04700c513dc24c
[INFO] running `"docker" "start" "-a" "2fb3aa209a540a294ff1b09e9ef7dec2cce1dcce21dee8bc9b04700c513dc24c"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking smallvec v1.3.0
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling sysinfo v0.13.3
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]    Compiling battery v0.7.5
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling once_cell v1.3.1
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[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking subtle v2.2.2
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking rustc-serialize v0.3.24
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[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]    Compiling indexmap v1.3.2
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[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
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[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking unicode-normalization v0.1.12
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[INFO] [stderr]    Compiling rocket_contrib_codegen v0.4.4
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]    Compiling num-bigint-dig v0.6.0
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling x11rb v0.4.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling quote v1.0.3
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[INFO] [stderr]     Checking inotify-sys v0.1.3
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[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking gethostname v0.2.1
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling enum-utils-from-str v0.1.2
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]     Checking uom v0.26.0
[INFO] [stderr]     Checking regex v1.3.6
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[INFO] [stderr]     Checking rand_core v0.5.1
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[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking tar v0.4.26
[INFO] [stderr]    Compiling cc v1.0.50
[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 --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C debuginfo=2 -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"' -C metadata=9cd7f272975e2072 -C extra-filename=-9cd7f272975e2072 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1d151f3d6a048a2b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-9c246cdaf806a4f0.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-7b457bf679cc32f8.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] [stderr] error: build failed
[INFO] running `"docker" "inspect" "2fb3aa209a540a294ff1b09e9ef7dec2cce1dcce21dee8bc9b04700c513dc24c"`
[INFO] running `"docker" "rm" "-f" "2fb3aa209a540a294ff1b09e9ef7dec2cce1dcce21dee8bc9b04700c513dc24c"`
[INFO] [stdout] 2fb3aa209a540a294ff1b09e9ef7dec2cce1dcce21dee8bc9b04700c513dc24c