[INFO] fetching crate foundry 0.3.0...
[INFO] checking foundry-0.3.0 against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] extracting crate foundry 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate foundry 0.3.0 on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate foundry 0.3.0
[INFO] finished tweaking crates.io crate foundry 0.3.0
[INFO] tweaked toml for crates.io crate foundry 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 653066ec42ed6f1860d7d0abaa014f5bac8b53982ec615f6963dd9ab9a123fb5
[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" "653066ec42ed6f1860d7d0abaa014f5bac8b53982ec615f6963dd9ab9a123fb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "653066ec42ed6f1860d7d0abaa014f5bac8b53982ec615f6963dd9ab9a123fb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "653066ec42ed6f1860d7d0abaa014f5bac8b53982ec615f6963dd9ab9a123fb5", kill_on_drop: false }`
[INFO] [stdout] 653066ec42ed6f1860d7d0abaa014f5bac8b53982ec615f6963dd9ab9a123fb5
[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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85b9932df97f33da24c47f53e1e62db53c29cbd3885d2b39b09dfadfb6ee9013
[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" "85b9932df97f33da24c47f53e1e62db53c29cbd3885d2b39b09dfadfb6ee9013", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling vulkano v0.10.0
[INFO] [stderr]     Checking vk-sys v0.3.3
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking crossbeam-epoch v0.6.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]     Checking crossbeam-deque v0.5.2
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling glsl-to-spirv v0.1.7
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking crossbeam-channel v0.2.6
[INFO] [stderr]     Checking crossbeam v0.4.1
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.14.9/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="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=c6ed86824e3bb628 -C extra-filename=-c6ed86824e3bb628 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-4f0da68a0f8a2f5a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-f06806007db9cd70.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-5ef45b28e7fc52f2.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "85b9932df97f33da24c47f53e1e62db53c29cbd3885d2b39b09dfadfb6ee9013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85b9932df97f33da24c47f53e1e62db53c29cbd3885d2b39b09dfadfb6ee9013", kill_on_drop: false }`
[INFO] [stdout] 85b9932df97f33da24c47f53e1e62db53c29cbd3885d2b39b09dfadfb6ee9013