[INFO] fetching crate ppp 2.2.0...
[INFO] building ppp-2.2.0 against try#14accda7ba2c586835d15379a621955d9f047371 for pr-103610
[INFO] extracting crate ppp 2.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ppp 2.2.0 on toolchain 14accda7ba2c586835d15379a621955d9f047371
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ppp 2.2.0
[INFO] finished tweaking crates.io crate ppp 2.2.0
[INFO] tweaked toml for crates.io crate ppp 2.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate ppp 2.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] deddbd468ac732461914094150035c318ce446388d80a2578dd2e24926ebed54
[INFO] running `Command { std: "docker" "start" "-a" "deddbd468ac732461914094150035c318ce446388d80a2578dd2e24926ebed54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "deddbd468ac732461914094150035c318ce446388d80a2578dd2e24926ebed54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deddbd468ac732461914094150035c318ce446388d80a2578dd2e24926ebed54", kill_on_drop: false }`
[INFO] [stdout] deddbd468ac732461914094150035c318ce446388d80a2578dd2e24926ebed54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 484a4e1eeab2bd1ec927490de92da62c4504f7fd23b41165c01877fed562f953
[INFO] running `Command { std: "docker" "start" "-a" "484a4e1eeab2bd1ec927490de92da62c4504f7fd23b41165c01877fed562f953", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling thiserror v1.0.31
[INFO] [stderr]    Compiling ppp v2.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.22s
[INFO] running `Command { std: "docker" "inspect" "484a4e1eeab2bd1ec927490de92da62c4504f7fd23b41165c01877fed562f953", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "484a4e1eeab2bd1ec927490de92da62c4504f7fd23b41165c01877fed562f953", kill_on_drop: false }`
[INFO] [stdout] 484a4e1eeab2bd1ec927490de92da62c4504f7fd23b41165c01877fed562f953
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+14accda7ba2c586835d15379a621955d9f047371" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb004fb593d70ef4f60946a9624daf1c154dc2ef65ce1d7b40c84fb787614f7b
[INFO] running `Command { std: "docker" "start" "-a" "eb004fb593d70ef4f60946a9624daf1c154dc2ef65ce1d7b40c84fb787614f7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling either v1.7.0
[INFO] [stderr]    Compiling once_cell v1.12.0
[INFO] [stderr]    Compiling anyhow v1.0.58
[INFO] [stderr]    Compiling semver v1.0.12
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]    Compiling serde v1.0.138
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling hashbrown v0.12.1
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling fixedbitset v0.4.1
[INFO] [stderr]    Compiling regex-syntax v0.6.26
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.9
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling which v4.2.5
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling serde_json v1.0.82
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling prost-build v0.9.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling petgraph v0.6.2
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.5
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling multimap v0.8.3
[INFO] [stderr]    Compiling serde_derive v1.0.138
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling cpp_demangle v0.3.5
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling backtrace v0.3.65
[INFO] [stderr]    Compiling findshlibs v0.10.2
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling memmap2 v0.5.4
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling debugid v0.7.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling smallvec v1.9.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling regex v1.5.6
[INFO] [stderr]    Compiling symbolic-demangle v8.8.0
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling bytemuck v1.9.1
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling rgb v0.8.33
[INFO] [stderr]    Compiling miniz_oxide v0.5.3
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling symbolic-common v8.8.0
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling num-format v0.4.0
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling object v0.28.4
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling str_stack v0.1.0
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling inferno v0.10.12
[INFO] [stderr]    Compiling nix v0.23.1
[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-1.0.98/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="extra-traits"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=3ff4c9d0a49e0e9b -C extra-filename=-3ff4c9d0a49e0e9b --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-70ed4e777d442339.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-ef685f2342365f30.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-2d8bc6a785d80132.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" "eb004fb593d70ef4f60946a9624daf1c154dc2ef65ce1d7b40c84fb787614f7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb004fb593d70ef4f60946a9624daf1c154dc2ef65ce1d7b40c84fb787614f7b", kill_on_drop: false }`
[INFO] [stdout] eb004fb593d70ef4f60946a9624daf1c154dc2ef65ce1d7b40c84fb787614f7b