[INFO] fetching crate tract 0.19.8...
[INFO] checking tract-0.19.8 against try#0818a9065516e3afb806892a26657c556d485386 for pr-110322
[INFO] extracting crate tract 0.19.8 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate tract 0.19.8 on toolchain 0818a9065516e3afb806892a26657c556d485386
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0818a9065516e3afb806892a26657c556d485386" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tract 0.19.8
[INFO] finished tweaking crates.io crate tract 0.19.8
[INFO] tweaked toml for crates.io crate tract 0.19.8 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate tract 0.19.8 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" "+0818a9065516e3afb806892a26657c556d485386" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+0818a9065516e3afb806892a26657c556d485386" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fe24b769b9bd8dca099450f2d5ea304db89bad8399a97727d5cf449b7b90fd9
[INFO] running `Command { std: "docker" "start" "-a" "4fe24b769b9bd8dca099450f2d5ea304db89bad8399a97727d5cf449b7b90fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fe24b769b9bd8dca099450f2d5ea304db89bad8399a97727d5cf449b7b90fd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fe24b769b9bd8dca099450f2d5ea304db89bad8399a97727d5cf449b7b90fd9", kill_on_drop: false }`
[INFO] [stdout] 4fe24b769b9bd8dca099450f2d5ea304db89bad8399a97727d5cf449b7b90fd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:97d61d7686bf65f8ecb15491ab51835e82dc9176a96a831f143a431b191fc501" "/opt/rustwide/cargo-home/bin/cargo" "+0818a9065516e3afb806892a26657c556d485386" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 632ecfb600ad16a876ff636e32e349be0d107505ba2e3b3552c53598531404aa
[INFO] running `Command { std: "docker" "start" "-a" "632ecfb600ad16a876ff636e32e349be0d107505ba2e3b3552c53598531404aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.54
[INFO] [stderr]    Compiling libm v0.2.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.158
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling serde v1.0.158
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling time-macros v0.2.8
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling anymap2 v0.13.0
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling syn v2.0.10
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]    Compiling rustfft v6.1.0
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]    Compiling proc-quote-impl v0.3.2
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]     Checking dyn-clone v1.0.11
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking half v2.2.1
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]     Checking primal-check v0.3.3
[INFO] [stderr]     Checking transpose v0.2.2
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]    Compiling time v0.3.20
[INFO] [stderr]     Checking xattr v0.2.3
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking filetime v0.2.20
[INFO] [stderr]     Checking regex v1.7.3
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]     Checking tar v0.4.38
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking scan_fmt v0.2.6
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]    Compiling io-lifetimes v1.0.9
[INFO] [stderr]    Compiling serde_json v1.0.94
[INFO] [stderr]    Compiling futures-util v0.3.27
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling futures-channel v0.3.27
[INFO] [stderr]    Compiling rustix v0.36.11
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.7
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stderr]     Checking rand_distr v0.4.3
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking plotters-backend v0.3.4
[INFO] [stderr]     Checking linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]     Checking os_str_bytes v6.5.0
[INFO] [stderr]     Checking half v1.8.2
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking ciborium-io v0.2.0
[INFO] [stderr]    Compiling colorous v1.0.10
[INFO] [stderr]     Checking try-lock v0.2.4
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking ciborium-ll v0.2.0
[INFO] [stderr]     Checking plotters-svg v0.3.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking idna v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling proc-quote v0.4.0
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking textwrap v0.15.2
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking plotters v0.3.4
[INFO] [stderr]     Checking url v2.3.1
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]     Checking ipnet v2.7.1
[INFO] [stderr] error: could not compile `syn` (lib)
[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/index.crates.io-6f17d22bba15001f/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"' -C metadata=1aa750c4bac3ec20 -C extra-filename=-1aa750c4bac3ec20 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-4d06d0b08b420e8b.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-3eaa8c325eca0ef3.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-a502b78bf86c3aa2.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" "632ecfb600ad16a876ff636e32e349be0d107505ba2e3b3552c53598531404aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "632ecfb600ad16a876ff636e32e349be0d107505ba2e3b3552c53598531404aa", kill_on_drop: false }`
[INFO] [stdout] 632ecfb600ad16a876ff636e32e349be0d107505ba2e3b3552c53598531404aa