[INFO] fetching crate buzz 1.7.0-rc.1...
[INFO] checking buzz-1.7.0-rc.1 against try#66a90ebb65988141d56cac36290f07711b1b1e2d for pr-104616
[INFO] extracting crate buzz 1.7.0-rc.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate buzz 1.7.0-rc.1 on toolchain 66a90ebb65988141d56cac36290f07711b1b1e2d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66a90ebb65988141d56cac36290f07711b1b1e2d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buzz 1.7.0-rc.1
[INFO] finished tweaking crates.io crate buzz 1.7.0-rc.1
[INFO] tweaked toml for crates.io crate buzz 1.7.0-rc.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate buzz 1.7.0-rc.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66a90ebb65988141d56cac36290f07711b1b1e2d" "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-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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+66a90ebb65988141d56cac36290f07711b1b1e2d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2041c9bbd0398c64d888c1cff2452d7eabb05d8cb2bbf393f2524494cabb5528
[INFO] running `Command { std: "docker" "start" "-a" "2041c9bbd0398c64d888c1cff2452d7eabb05d8cb2bbf393f2524494cabb5528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2041c9bbd0398c64d888c1cff2452d7eabb05d8cb2bbf393f2524494cabb5528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2041c9bbd0398c64d888c1cff2452d7eabb05d8cb2bbf393f2524494cabb5528", kill_on_drop: false }`
[INFO] [stdout] 2041c9bbd0398c64d888c1cff2452d7eabb05d8cb2bbf393f2524494cabb5528
[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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+66a90ebb65988141d56cac36290f07711b1b1e2d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c92de2d03c5a57af58485f7ac4dc162d519e82e088f3a09959dcce5e9f9a46d6
[INFO] running `Command { std: "docker" "start" "-a" "c92de2d03c5a57af58485f7ac4dc162d519e82e088f3a09959dcce5e9f9a46d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling glib-sys v0.9.1
[INFO] [stderr]    Compiling gobject-sys v0.9.1
[INFO] [stderr]    Compiling gio-sys v0.9.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.2
[INFO] [stderr]    Compiling pango-sys v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.9.1
[INFO] [stderr]    Compiling atk-sys v0.9.1
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling gdk-sys v0.9.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling gtk-sys v0.9.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bindgen v0.52.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling gio v0.8.1
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling gdk-pixbuf v0.8.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling pango v0.8.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]    Compiling cairo-rs v0.8.1
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking getrandom v0.2.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling atk v0.8.0
[INFO] [stderr]    Compiling gdk v0.12.1
[INFO] [stderr]     Checking event-listener v2.5.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.7
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling gtk v0.8.1
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]    Compiling rustls v0.20.4
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking rustls-pemfile v0.2.1
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking easy-parallel v3.2.0
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking async-task v4.1.0
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking async-broadcast v0.3.4
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking sha1 v0.6.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking rustls-native-certs v0.6.1
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking async-lock v2.5.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking ordered-stream v0.0.1
[INFO] [stderr]     Checking aliasable v0.1.3
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]    Compiling anyhow v1.0.54
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking chrono v0.4.19
[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-1.0.86/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="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' -C metadata=b7694fbbc2025220 -C extra-filename=-b7694fbbc2025220 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d937f1f82ffb437d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-4040e84c0ddb8645.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3c8a88541efd8c80.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" "c92de2d03c5a57af58485f7ac4dc162d519e82e088f3a09959dcce5e9f9a46d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c92de2d03c5a57af58485f7ac4dc162d519e82e088f3a09959dcce5e9f9a46d6", kill_on_drop: false }`
[INFO] [stdout] c92de2d03c5a57af58485f7ac4dc162d519e82e088f3a09959dcce5e9f9a46d6