[INFO] fetching crate wimp 0.1.0...
[INFO] testing wimp-0.1.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate wimp 0.1.0 into /workspace/builds/worker-57/source
[INFO] validating manifest of crates.io crate wimp 0.1.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wimp 0.1.0
[INFO] finished tweaking crates.io crate wimp 0.1.0
[INFO] tweaked toml for crates.io crate wimp 0.1.0 written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] crate crates.io crate wimp 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-attributes v0.1.11
[INFO] [stderr]   Downloaded pin-project-lite v0.1.10
[INFO] [stderr]   Downloaded tracing v0.1.21
[INFO] [stderr]   Downloaded xcb v0.9.0
[INFO] [stderr]   Downloaded gfx-memory v0.2.0
[INFO] [stderr]   Downloaded storage-map v0.3.0
[INFO] [stderr]   Downloaded gfx-backend-empty v0.6.0
[INFO] [stderr]   Downloaded core-foundation-sys v0.8.1
[INFO] [stderr]   Downloaded gfx-descriptor v0.2.0
[INFO] [stderr]   Downloaded range-alloc v0.1.1
[INFO] [stderr]   Downloaded gfx-hal v0.6.0
[INFO] [stderr]   Downloaded async-macros v2.0.0
[INFO] [stderr]   Downloaded naga v0.2.0
[INFO] [stderr]   Downloaded d3d12 v0.3.2
[INFO] [stderr]   Downloaded async-global-executor v1.3.0
[INFO] [stderr]   Downloaded async-task v4.0.2
[INFO] [stderr]   Downloaded wepoll-sys v3.0.0
[INFO] [stderr]   Downloaded gfx-backend-dx12 v0.6.4
[INFO] [stderr]   Downloaded wgpu v0.6.0
[INFO] [stderr]   Downloaded pin-project-internal v0.4.25
[INFO] [stderr]   Downloaded blocking v1.0.0
[INFO] [stderr]   Downloaded gfx-backend-vulkan v0.6.3
[INFO] [stderr]   Downloaded gfx-auxil v0.6.0
[INFO] [stderr]   Downloaded shaderc v0.6.2
[INFO] [stderr]   Downloaded polling v2.0.0
[INFO] [stderr]   Downloaded cmake v0.1.44
[INFO] [stderr]   Downloaded async-executor v1.3.0
[INFO] [stderr]   Downloaded spirv_cross v0.21.0
[INFO] [stderr]   Downloaded ash v0.31.0
[INFO] [stderr]   Downloaded gfx-backend-metal v0.6.3
[INFO] [stderr]   Downloaded x11rb v0.6.0
[INFO] [stderr]   Downloaded async-channel v1.4.2
[INFO] [stderr]   Downloaded syn v1.0.42
[INFO] [stderr]   Downloaded async-std v1.6.5
[INFO] [stderr]   Downloaded shaderc-sys v0.6.2
[INFO] [stderr]   Downloaded nb-connect v1.0.1
[INFO] [stderr]   Downloaded atom v0.3.5
[INFO] [stderr]   Downloaded async-io v1.1.8
[INFO] [stderr]   Downloaded futures-lite v1.10.0
[INFO] [stderr]   Downloaded gfx-backend-dx11 v0.6.4
[INFO] [stderr]   Downloaded spirv_headers v1.5.0
[INFO] [stderr]   Downloaded hibitset v0.6.3
[INFO] [stderr]   Downloaded pin-project v0.4.25
[INFO] [stderr]   Downloaded typed-arena v2.0.1
[INFO] [stderr]   Downloaded inplace_it v0.3.2
[INFO] [stderr]   Downloaded wgpu-types v0.6.1
[INFO] [stderr]   Downloaded metal v0.20.0
[INFO] [stderr]   Downloaded wgpu-core v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 131b8076a47150e3a6d88de0d8c93a7bf3bab305d1d4edd8d0ec613f12e36735
[INFO] running `Command { std: "docker" "start" "-a" "131b8076a47150e3a6d88de0d8c93a7bf3bab305d1d4edd8d0ec613f12e36735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "131b8076a47150e3a6d88de0d8c93a7bf3bab305d1d4edd8d0ec613f12e36735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "131b8076a47150e3a6d88de0d8c93a7bf3bab305d1d4edd8d0ec613f12e36735", kill_on_drop: false }`
[INFO] [stdout] 131b8076a47150e3a6d88de0d8c93a7bf3bab305d1d4edd8d0ec613f12e36735
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e85a91bcebb7ead05120daa2e05bcc54c1a2299b2c889a0402ee89c343704403
[INFO] running `Command { std: "docker" "start" "-a" "e85a91bcebb7ead05120daa2e05bcc54c1a2299b2c889a0402ee89c343704403", 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling futures-core v0.3.5
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling futures-io v0.3.5
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling pin-project-lite v0.1.10
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.25
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling fastrand v1.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling atom v0.3.5
[INFO] [stderr]    Compiling vec-arena v1.0.0
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling inplace_it v0.3.2
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling async-task v4.0.2
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling copyless v0.1.5
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling typed-arena v2.0.1
[INFO] [stderr]    Compiling instant v0.1.7
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling async-macros v2.0.0
[INFO] [stderr]    Compiling hibitset v0.6.3
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling async-channel v1.4.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling wgpu-types v0.6.1
[INFO] [stderr]    Compiling ash v0.31.0
[INFO] [stderr]    Compiling futures-lite v1.10.0
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling async-executor v1.3.0
[INFO] [stderr]    Compiling blocking v1.0.0
[INFO] [stderr]    Compiling spirv_headers v1.5.0
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling nb-connect v1.0.1
[INFO] [stderr]    Compiling polling v2.0.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling gethostname v0.2.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling gfx-hal v0.6.0
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling async-io v1.1.8
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling async-global-executor v1.3.0
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling shaderc-sys v0.6.2
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling gfx-memory v0.2.0
[INFO] [stderr]    Compiling gfx-backend-empty v0.6.0
[INFO] [stderr]    Compiling gfx-descriptor v0.2.0
[INFO] [stderr]    Compiling x11rb v0.6.0
[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-1.0.42/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --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"' --cfg 'feature="visit-mut"' -C metadata=4ca2883bcf2d2e01 -C extra-filename=-4ca2883bcf2d2e01 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-89254f8a188bc205.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-0bb1ea6a23b530f1.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-ca70f4dd0d5d1ebc.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] The following warnings were emitted during compilation:
[INFO] [stderr] 
[INFO] [stderr] warning: Checking for system installed libraries.  Use --features = build-from-source to disable this behavior
[INFO] [stderr] warning: System installed library not found.  Falling back to build from source
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e85a91bcebb7ead05120daa2e05bcc54c1a2299b2c889a0402ee89c343704403", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e85a91bcebb7ead05120daa2e05bcc54c1a2299b2c889a0402ee89c343704403", kill_on_drop: false }`
[INFO] [stdout] e85a91bcebb7ead05120daa2e05bcc54c1a2299b2c889a0402ee89c343704403