[INFO] fetching crate modeling 0.6.2...
[INFO] testing modeling-0.6.2 against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1
[INFO] extracting crate modeling 0.6.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate modeling 0.6.2
[INFO] finished tweaking crates.io crate modeling 0.6.2
[INFO] tweaked toml for crates.io crate modeling 0.6.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate modeling 0.6.2 on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate modeling 0.6.2 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fe57ac9197de08b9e25f17d5df51475b0180a9e962ef6ee075329338a00fc77
[INFO] running `Command { std: "docker" "start" "-a" "6fe57ac9197de08b9e25f17d5df51475b0180a9e962ef6ee075329338a00fc77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fe57ac9197de08b9e25f17d5df51475b0180a9e962ef6ee075329338a00fc77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fe57ac9197de08b9e25f17d5df51475b0180a9e962ef6ee075329338a00fc77", kill_on_drop: false }`
[INFO] [stdout] 6fe57ac9197de08b9e25f17d5df51475b0180a9e962ef6ee075329338a00fc77
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }`
[INFO] [stdout] 1e1de6630ccfbd2715326f031ed0210e97996a3283d9c009aea057f1c600d460
[INFO] running `Command { std: "docker" "start" "-a" "1e1de6630ccfbd2715326f031ed0210e97996a3283d9c009aea057f1c600d460", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling futures-sink v0.3.19
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling futures-io v0.3.19
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling pin-project-internal v0.4.29
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling tinyvec v1.5.1
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling serde_json v1.0.74
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling cpufeatures v0.2.1
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling http v0.2.6
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling copyless v0.1.5
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.6
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling time v0.2.27
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]    Compiling bytecount v0.6.2
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling tokio v1.15.0
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling resolv-conf v0.7.0
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling bzip2 v0.4.3
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling onig_sys v69.7.1
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling console v0.15.0
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling xattr v0.2.2
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling esaxx-rs v0.1.7
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling ipnet v2.3.1
[INFO] [stderr]    Compiling number_prefix v0.3.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]    Compiling indicatif v0.15.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[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/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.84/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=98ace6310b2c41f0 -C extra-filename=-5ca87c242b641bac --out-dir /opt/rustwide/target/debug/build/syn/5ca87c242b641bac/deps -L dependency=/opt/rustwide/target/debug/build/proc-macro2/0b2d5908ee0d1568/deps -L dependency=/opt/rustwide/target/debug/build/proc-macro2/9c7dd6e0d7e38a6f/deps -L dependency=/opt/rustwide/target/debug/build/proc-macro2/c77f8dfdfb1f5bd8/deps -L dependency=/opt/rustwide/target/debug/build/quote/3a2c18c26cea2367/deps -L dependency=/opt/rustwide/target/debug/build/syn/5ca87c242b641bac/deps -L dependency=/opt/rustwide/target/debug/build/syn/5e4ddc9073ecd19e/deps -L dependency=/opt/rustwide/target/debug/build/syn/e255529128dae417/deps -L dependency=/opt/rustwide/target/debug/build/unicode-xid/9a308e948d49b175/deps --extern proc_macro2=/opt/rustwide/target/debug/build/proc-macro2/c77f8dfdfb1f5bd8/deps/libproc_macro2-c77f8dfdfb1f5bd8.rmeta --extern quote=/opt/rustwide/target/debug/build/quote/3a2c18c26cea2367/deps/libquote-3a2c18c26cea2367.rmeta --extern unicode_xid=/opt/rustwide/target/debug/build/unicode-xid/9a308e948d49b175/deps/libunicode_xid-9a308e948d49b175.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" "1e1de6630ccfbd2715326f031ed0210e97996a3283d9c009aea057f1c600d460", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e1de6630ccfbd2715326f031ed0210e97996a3283d9c009aea057f1c600d460", kill_on_drop: false }`
[INFO] [stdout] 1e1de6630ccfbd2715326f031ed0210e97996a3283d9c009aea057f1c600d460