[INFO] cloning repository https://github.com/Enqueued/lambda_tube
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Enqueued/lambda_tube" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEnqueued%2Flambda_tube", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEnqueued%2Flambda_tube'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 751a9b986f8dabd54b975a41444e140ccf0cf841
[INFO] checking Enqueued/lambda_tube against master#80ed61fbd64936ed676c2050e7e660b5ad78c9f2 for pr-100555
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEnqueued%2Flambda_tube" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Enqueued/lambda_tube on toolchain 80ed61fbd64936ed676c2050e7e660b5ad78c9f2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+80ed61fbd64936ed676c2050e7e660b5ad78c9f2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Enqueued/lambda_tube
[INFO] finished tweaking git repo https://github.com/Enqueued/lambda_tube
[INFO] tweaked toml for git repo https://github.com/Enqueued/lambda_tube written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Enqueued/lambda_tube already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+80ed61fbd64936ed676c2050e7e660b5ad78c9f2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+80ed61fbd64936ed676c2050e7e660b5ad78c9f2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c6e4e227a4912a978e25c2357836dc737d15079b844715fdb86f049a67570a1
[INFO] running `Command { std: "docker" "start" "-a" "1c6e4e227a4912a978e25c2357836dc737d15079b844715fdb86f049a67570a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c6e4e227a4912a978e25c2357836dc737d15079b844715fdb86f049a67570a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c6e4e227a4912a978e25c2357836dc737d15079b844715fdb86f049a67570a1", kill_on_drop: false }`
[INFO] [stdout] 1c6e4e227a4912a978e25c2357836dc737d15079b844715fdb86f049a67570a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+80ed61fbd64936ed676c2050e7e660b5ad78c9f2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fe84b407a0e0049e1a3ba1e22bf7c9932c85e708b70cffa5a93bbf7ad0340d4
[INFO] running `Command { std: "docker" "start" "-a" "2fe84b407a0e0049e1a3ba1e22bf7c9932c85e708b70cffa5a93bbf7ad0340d4", kill_on_drop: false }`
[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]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking cache-padded v1.2.0
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking fastrand v1.7.0
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]     Checking ttf-parser v0.14.0
[INFO] [stderr]     Checking event-listener v2.5.2
[INFO] [stderr]     Checking slab v0.4.5
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]     Checking ahash v0.4.7
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.5
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking async-task v4.1.0
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking sha1_smol v1.0.0
[INFO] [stderr]     Checking easy-parallel v3.2.0
[INFO] [stderr]    Compiling winit v0.26.1
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking nohash-hasher v0.2.0
[INFO] [stderr]     Checking atomic_refcell v0.1.8
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling dark-light v0.2.1
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking dconf_rs v0.3.0
[INFO] [stderr]     Checking detect-desktop-environment v0.2.0
[INFO] [stderr]     Checking glow v0.11.2
[INFO] [stderr]     Checking libloading v0.7.3
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking tracing-core v0.1.22
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking async-lock v2.5.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking raw-window-handle v0.4.2
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking sha1 v0.6.1
[INFO] [stderr]    Compiling wayland-sys v0.29.4
[INFO] [stderr]    Compiling smithay-client-toolkit v0.15.3
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]     Checking ordered-stream v0.0.1
[INFO] [stderr]     Checking async-broadcast v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling quick-xml v0.22.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking owned_ttf_parser v0.14.0
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking ab_glyph v0.2.13
[INFO] [stderr]    Compiling wayland-scanner v0.29.4
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]    Compiling xcb v0.10.1
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]     Checking getrandom v0.2.5
[INFO] [stderr]     Checking nix v0.22.3
[INFO] [stderr]     Checking memmap2 v0.3.1
[INFO] [stderr]     Checking polling v2.2.0
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking webbrowser v0.6.0
[INFO] [stderr]    Compiling wayland-client v0.29.4
[INFO] [stderr]    Compiling wayland-protocols v0.29.4
[INFO] [stderr]     Checking dlv-list v0.2.3
[INFO] [stderr]     Checking ordered-multimap v0.3.1
[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-1.0.86/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" "2fe84b407a0e0049e1a3ba1e22bf7c9932c85e708b70cffa5a93bbf7ad0340d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fe84b407a0e0049e1a3ba1e22bf7c9932c85e708b70cffa5a93bbf7ad0340d4", kill_on_drop: false }`
[INFO] [stdout] 2fe84b407a0e0049e1a3ba1e22bf7c9932c85e708b70cffa5a93bbf7ad0340d4