[INFO] fetching crate squawk 0.3.0...
[INFO] checking squawk-0.3.0 against try#3ac4ab8283c0bed583d0a33ab92c6a77c486aa98 for pr-106465
[INFO] extracting crate squawk 0.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] validating manifest of crates.io crate squawk 0.3.0 on toolchain 3ac4ab8283c0bed583d0a33ab92c6a77c486aa98
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3ac4ab8283c0bed583d0a33ab92c6a77c486aa98" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate squawk 0.3.0
[INFO] finished tweaking crates.io crate squawk 0.3.0
[INFO] tweaked toml for crates.io crate squawk 0.3.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate crates.io crate squawk 0.3.0 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" "+3ac4ab8283c0bed583d0a33ab92c6a77c486aa98" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:9042d5c95763f71f7b0904716b98ccadf9fc47b0f382ee962aaaed2ac70c9b8d" "/opt/rustwide/cargo-home/bin/cargo" "+3ac4ab8283c0bed583d0a33ab92c6a77c486aa98" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84efe65f6a33931f8fdb26661a32519da4dd4a8c2d7b73a5b662868d50be64d8
[INFO] running `Command { std: "docker" "start" "-a" "84efe65f6a33931f8fdb26661a32519da4dd4a8c2d7b73a5b662868d50be64d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84efe65f6a33931f8fdb26661a32519da4dd4a8c2d7b73a5b662868d50be64d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84efe65f6a33931f8fdb26661a32519da4dd4a8c2d7b73a5b662868d50be64d8", kill_on_drop: false }`
[INFO] [stdout] 84efe65f6a33931f8fdb26661a32519da4dd4a8c2d7b73a5b662868d50be64d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:9042d5c95763f71f7b0904716b98ccadf9fc47b0f382ee962aaaed2ac70c9b8d" "/opt/rustwide/cargo-home/bin/cargo" "+3ac4ab8283c0bed583d0a33ab92c6a77c486aa98" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52f1a60493f64ced72f1cd0fea4780b121ecea4f9ef3dc88690449bfbfd38bd1
[INFO] running `Command { std: "docker" "start" "-a" "52f1a60493f64ced72f1cd0fea4780b121ecea4f9ef3dc88690449bfbfd38bd1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking futures v0.1.29
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking tinyvec v0.3.3
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling gimli v0.21.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking unicode-normalization v0.1.13
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling object v0.19.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]    Compiling aho-corasick v0.7.10
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling bindgen v0.45.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]    Compiling addr2line v0.12.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]    Compiling backtrace v0.3.48
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling regex v1.3.7
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling make-cmd v0.1.0
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking try-lock v0.2.2
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling encoding_rs v0.8.23
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling syn-mid v0.5.0
[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-1.0.31/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=0247daff54c24bca -C extra-filename=-0247daff54c24bca --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-5029f880d4908fba.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-94c7c3a9f47da635.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-1256a373de2a2211.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" "52f1a60493f64ced72f1cd0fea4780b121ecea4f9ef3dc88690449bfbfd38bd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52f1a60493f64ced72f1cd0fea4780b121ecea4f9ef3dc88690449bfbfd38bd1", kill_on_drop: false }`
[INFO] [stdout] 52f1a60493f64ced72f1cd0fea4780b121ecea4f9ef3dc88690449bfbfd38bd1