[INFO] cloning repository https://github.com/Ramshreyas/bnft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ramshreyas/bnft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRamshreyas%2Fbnft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRamshreyas%2Fbnft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0828eca079926642e758a5525a3f80f0e03be689
[INFO] testing Ramshreyas/bnft against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRamshreyas%2Fbnft" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ramshreyas/bnft 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 git repo https://github.com/Ramshreyas/bnft
[INFO] finished tweaking git repo https://github.com/Ramshreyas/bnft
[INFO] tweaked toml for git repo https://github.com/Ramshreyas/bnft written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Ramshreyas/bnft 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 libp2p-mplex v0.7.0
[INFO] [stderr]   Downloaded libp2p-ratelimit v0.7.0
[INFO] [stderr]   Downloaded libp2p-plaintext v0.7.0
[INFO] [stderr]   Downloaded web-sys v0.3.25
[INFO] [stderr]   Downloaded libp2p-ping v0.7.0
[INFO] [stderr]   Downloaded libp2p-dns v0.7.0
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.48
[INFO] [stderr]   Downloaded bstr v0.2.6
[INFO] [stderr]   Downloaded libp2p-kad v0.7.0
[INFO] [stderr]   Downloaded libp2p-uds v0.7.0
[INFO] [stderr]   Downloaded libp2p-websocket v0.7.0
[INFO] [stderr]   Downloaded safemem v0.3.1
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.3.25
[INFO] [stderr]   Downloaded libp2p-tcp v0.7.2
[INFO] [stderr]   Downloaded libp2p-identify v0.7.0
[INFO] [stderr]   Downloaded libp2p-floodsub v0.7.0
[INFO] [stderr]   Downloaded libp2p-noise v0.5.0
[INFO] [stderr]   Downloaded libp2p-mdns v0.7.0
[INFO] [stderr]   Downloaded libp2p-core-derive v0.7.0
[INFO] [stderr]   Downloaded libp2p-yamux v0.7.0
[INFO] [stderr]   Downloaded libp2p-secio v0.7.0
[INFO] [stderr]   Downloaded libp2p v0.7.0
[INFO] [stderr]   Downloaded libp2p-core v0.7.1
[INFO] [stderr]   Downloaded curve25519-dalek v1.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] ea44144f4f0c10036104aede73cebcd9e2c94211c13b9932620e21013b022344
[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" "ea44144f4f0c10036104aede73cebcd9e2c94211c13b9932620e21013b022344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea44144f4f0c10036104aede73cebcd9e2c94211c13b9932620e21013b022344", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea44144f4f0c10036104aede73cebcd9e2c94211c13b9932620e21013b022344", kill_on_drop: false }`
[INFO] [stdout] ea44144f4f0c10036104aede73cebcd9e2c94211c13b9932620e21013b022344
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] a3275bfb1e893a9893d61c4097dbb342f59692b6bbe33b080f74082dc1efcdb3
[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" "a3275bfb1e893a9893d61c4097dbb342f59692b6bbe33b080f74082dc1efcdb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling serde v1.0.98
[INFO] [stderr]    Compiling rustc-demangle v0.1.15
[INFO] [stderr]    Compiling subtle v2.1.1
[INFO] [stderr]    Compiling untrusted v0.6.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.3
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling hash-db v0.12.4
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.2
[INFO] [stderr]    Compiling memory_units v0.3.0
[INFO] [stderr]    Compiling base58 v0.1.0
[INFO] [stderr]    Compiling protobuf v2.8.0
[INFO] [stderr]    Compiling hashmap_core v0.1.10
[INFO] [stderr]    Compiling zeroize v0.5.2
[INFO] [stderr]    Compiling environmental v1.0.1
[INFO] [stderr]    Compiling sha1 v0.6.0
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]    Compiling safemem v0.3.1
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling c_linked_list v1.1.1
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling strum v0.14.0
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling arc-swap v0.3.11
[INFO] [stderr]    Compiling bitmask v0.5.0
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling bindgen v0.47.3
[INFO] [stderr]    Compiling doc-comment v0.3.1
[INFO] [stderr]    Compiling names v0.11.0
[INFO] [stderr]    Compiling sysinfo v0.8.6
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling unicase v2.4.0
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling tokio-sync v0.1.6
[INFO] [stderr]    Compiling trie-root v0.12.4
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling lru-cache v0.1.2
[INFO] [stderr]    Compiling linked_hash_set v0.1.3
[INFO] [stderr]    Compiling app_dirs v1.2.1
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling proc-macro-hack v0.4.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling get_if_addrs v0.5.3
[INFO] [stderr]    Compiling fs-swap v0.2.4
[INFO] [stderr]    Compiling fdlimit v0.1.1
[INFO] [stderr]    Compiling generic-array v0.8.3
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling bstr v0.2.6
[INFO] [stderr]    Compiling elastic-array v0.10.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling hex-literal-impl v0.1.2
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling hash256-std-hasher v0.12.4
[INFO] [stderr]    Compiling tiny-keccak v1.5.0
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling block-cipher-trait v0.6.2
[INFO] [stderr]    Compiling stream-cipher v0.3.0
[INFO] [stderr]    Compiling digest v0.6.2
[INFO] [stderr]    Compiling crypto-mac v0.4.0
[INFO] [stderr]    Compiling block-buffer v0.2.0
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling crypto-mac v0.6.2
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling kvdb v0.1.0 (https://github.com/paritytech/parity-common?rev=b0317f649ab2c665b7987b8475878fc4d2e1f81d#b0317f64)
[INFO] [stderr]    Compiling cuckoofilter v0.3.2
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling parity-wasm v0.31.3
[INFO] [stderr]    Compiling uint v0.7.1
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling bigint v4.4.1
[INFO] [stderr]    Compiling dns-parser v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling sr-std v1.0.0 (https://github.com/paritytech/substrate.git?rev=fc206f3a009b64fc746202e5b4c701bf7e24d1f1#fc206f3a)
[INFO] [stderr]    Compiling sr-io v1.0.0 (https://github.com/paritytech/substrate.git?rev=fc206f3a009b64fc746202e5b4c701bf7e24d1f1#fc206f3a)
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling snow v0.5.2
[INFO] [stderr]    Compiling safe-mix v1.0.0
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling aes-soft v0.3.3
[INFO] [stderr]    Compiling twofish v0.2.0
[INFO] [stderr]    Compiling block-modes v0.3.3
[INFO] [stderr]    Compiling hmac v0.7.1
[INFO] [stderr]    Compiling pbkdf2 v0.3.0
[INFO] [stderr]    Compiling blake2 v0.8.0
[INFO] [stderr]    Compiling regex v1.2.0
[INFO] [stderr]    Compiling ctr v0.3.2
[INFO] [stderr]    Compiling slog-async v2.3.0
[INFO] [stderr]    Compiling slog-scope v4.1.2
[INFO] [stderr]    Compiling hmac v0.4.2
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling sha2 v0.6.0
[INFO] [stderr]    Compiling pbkdf2 v0.2.3
[INFO] [stderr]    Compiling hmac v0.6.3
[INFO] [stderr]    Compiling cexpr v0.3.5
[INFO] [stderr]    Compiling fixed-hash v0.3.2
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling sha3 v0.8.2
[INFO] [stderr]    Compiling sha-1 v0.8.1
[INFO] [stderr]    Compiling ripemd160 v0.8.0
[INFO] [stderr]    Compiling hex-literal v0.1.4
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling http v0.1.18
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling aes v0.3.2
[INFO] [stderr]    Compiling aes-ctr v0.3.0
[INFO] [stderr]    Compiling hmac-drbg v0.1.2
[INFO] [stderr]    Compiling scrypt v0.1.2
[INFO] [stderr]    Compiling wasmi-validation v0.1.0
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling rw-stream-sink v0.1.2
[INFO] [stderr]    Compiling aio-limited v0.1.0
[INFO] [stderr]    Compiling parity-ws v0.8.0
[INFO] [stderr]    Compiling libsecp256k1 v0.2.2
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling globset v0.4.4
[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-0.15.42/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --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"' -C metadata=2e464058f3d8f2f5 -C extra-filename=-2e464058f3d8f2f5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-50111b8f7188482d.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-4972d66cc4bf7970.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-a81338cd23b23cba.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" "a3275bfb1e893a9893d61c4097dbb342f59692b6bbe33b080f74082dc1efcdb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3275bfb1e893a9893d61c4097dbb342f59692b6bbe33b080f74082dc1efcdb3", kill_on_drop: false }`
[INFO] [stdout] a3275bfb1e893a9893d61c4097dbb342f59692b6bbe33b080f74082dc1efcdb3