[INFO] fetching crate pallet-contract-operator 1.3.0...
[INFO] checking pallet-contract-operator-1.3.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate pallet-contract-operator 1.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate pallet-contract-operator 1.3.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pallet-contract-operator 1.3.0
[INFO] finished tweaking crates.io crate pallet-contract-operator 1.3.0
[INFO] tweaked toml for crates.io crate pallet-contract-operator 1.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a09afb37a6c1ee8759d31d3f6fc09b40fc90b7571445ca13e8a24ee31728cbf1
[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" "a09afb37a6c1ee8759d31d3f6fc09b40fc90b7571445ca13e8a24ee31728cbf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a09afb37a6c1ee8759d31d3f6fc09b40fc90b7571445ca13e8a24ee31728cbf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a09afb37a6c1ee8759d31d3f6fc09b40fc90b7571445ca13e8a24ee31728cbf1", kill_on_drop: false }`
[INFO] [stdout] a09afb37a6c1ee8759d31d3f6fc09b40fc90b7571445ca13e8a24ee31728cbf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--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] 73afbc717c1fb8968b1c5bfc1a35d76d2c088222823015f827d3e9c4e98cf41f
[INFO] running `Command { std: "docker" "start" "-a" "73afbc717c1fb8968b1c5bfc1a35d76d2c088222823015f827d3e9c4e98cf41f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking safe-mix v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking bitvec v0.17.4
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking uint v0.8.5
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking pwasm-utils v0.14.0
[INFO] [stderr]    Compiling hex-literal-impl v0.2.2
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking sp-panic-handler v2.0.1
[INFO] [stderr]     Checking sha2 v0.9.5
[INFO] [stderr]     Checking ahash v0.7.4
[INFO] [stderr]     Checking fixed-hash v0.6.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling wabt-sys v0.8.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking hex-literal v0.2.1
[INFO] [stderr]     Checking statrs v0.10.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking trie-db v0.22.6
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking integer-sqrt v0.1.5
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking wasmi v0.6.2
[INFO] [stderr]     Checking nalgebra v0.18.1
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/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="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=e390623c344de94d -C extra-filename=-e390623c344de94d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-9a0c90a1577b1e86.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-d00a867897b457f6.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-1f05abef37c9dd2c.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path` (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" "73afbc717c1fb8968b1c5bfc1a35d76d2c088222823015f827d3e9c4e98cf41f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73afbc717c1fb8968b1c5bfc1a35d76d2c088222823015f827d3e9c4e98cf41f", kill_on_drop: false }`
[INFO] [stdout] 73afbc717c1fb8968b1c5bfc1a35d76d2c088222823015f827d3e9c4e98cf41f