[INFO] fetching crate wimp 0.1.0...
[INFO] testing wimp-0.1.0 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate wimp 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate wimp 0.1.0 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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-6/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" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded range-alloc v0.1.1
[INFO] [stderr]   Downloaded core-foundation-sys v0.8.1
[INFO] [stderr]   Downloaded inplace_it v0.3.2
[INFO] [stderr]   Downloaded x11rb v0.6.0
[INFO] [stderr]   Downloaded gfx-auxil v0.6.0
[INFO] [stderr]   Downloaded futures-lite v1.10.0
[INFO] [stderr]   Downloaded gfx-backend-dx12 v0.6.4
[INFO] [stderr]   Downloaded gfx-backend-metal v0.6.3
[INFO] [stderr]   Downloaded gfx-backend-dx11 v0.6.4
[INFO] [stderr]   Downloaded spirv_cross v0.21.0
[INFO] [stderr]   Downloaded gfx-memory v0.2.0
[INFO] [stderr]   Downloaded gfx-backend-vulkan v0.6.3
[INFO] [stderr]   Downloaded wgpu v0.6.0
[INFO] [stderr]   Downloaded wgpu-core v0.6.3
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0acbe80c7776bea39724467322e404e35e0ed57608c8fa35e9bb0d51a035b91b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0acbe80c7776bea39724467322e404e35e0ed57608c8fa35e9bb0d51a035b91b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0acbe80c7776bea39724467322e404e35e0ed57608c8fa35e9bb0d51a035b91b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0acbe80c7776bea39724467322e404e35e0ed57608c8fa35e9bb0d51a035b91b", kill_on_drop: false }`
[INFO] [stdout] 0acbe80c7776bea39724467322e404e35e0ed57608c8fa35e9bb0d51a035b91b
[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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 63c7bdc8d0e27bd46f61221cc423effdb73a7ff948fb750d081c6fca66641718
[INFO] running `Command { std: "docker" "start" "-a" "63c7bdc8d0e27bd46f61221cc423effdb73a7ff948fb750d081c6fca66641718", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.78
[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 bitflags v1.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling pin-project-lite v0.1.10
[INFO] [stderr]    Compiling pin-project-internal v0.4.25
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling atom v0.3.5
[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 atomic-waker v1.0.0
[INFO] [stderr]    Compiling futures-task v0.3.5
[INFO] [stderr]    Compiling instant v0.1.7
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling async-macros v2.0.0
[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 lock_api v0.4.1
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling hibitset v0.6.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling futures-lite v1.10.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling async-channel v1.4.2
[INFO] [stderr]    Compiling regex v1.3.9
[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 kv-log-macro v1.0.7
[INFO] [stderr]    Compiling ash v0.31.0
[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 jobserver v0.1.21
[INFO] [stderr]    Compiling raw-window-handle v0.3.3
[INFO] [stderr]    Compiling polling v2.0.0
[INFO] [stderr]    Compiling nb-connect v1.0.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling gethostname v0.2.1
[INFO] [stderr]    Compiling spirv_headers v1.5.0
[INFO] [stderr]    Compiling gfx-hal v0.6.0
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling async-io v1.1.8
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling async-global-executor v1.3.0
[INFO] [stderr]    Compiling shaderc-sys v0.6.2
[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=ba804063e5df59a3 -C extra-filename=-ba804063e5df59a3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ba80430fb18d8252.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-42bf3df2a4136a24.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-4182131ee577b5da.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" "63c7bdc8d0e27bd46f61221cc423effdb73a7ff948fb750d081c6fca66641718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63c7bdc8d0e27bd46f61221cc423effdb73a7ff948fb750d081c6fca66641718", kill_on_drop: false }`
[INFO] [stdout] 63c7bdc8d0e27bd46f61221cc423effdb73a7ff948fb750d081c6fca66641718