[INFO] cloning repository https://github.com/tetcoin/cargo-contract
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tetcoin/cargo-contract" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetcoin%2Fcargo-contract", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetcoin%2Fcargo-contract'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e9e078c031508d03195992c2dd069deb31657ce5
[INFO] checking tetcoin/cargo-contract against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetcoin%2Fcargo-contract" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tetcoin/cargo-contract on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tetcoin/cargo-contract
[INFO] finished tweaking git repo https://github.com/tetcoin/cargo-contract
[INFO] tweaked toml for git repo https://github.com/tetcoin/cargo-contract written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/tetcoin/cargo-contract already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6ffa1e05dc47f90ba51d8caf715c41df65059ce2d015b46f49a26d77eca24ec5
[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" "6ffa1e05dc47f90ba51d8caf715c41df65059ce2d015b46f49a26d77eca24ec5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ffa1e05dc47f90ba51d8caf715c41df65059ce2d015b46f49a26d77eca24ec5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ffa1e05dc47f90ba51d8caf715c41df65059ce2d015b46f49a26d77eca24ec5", kill_on_drop: false }`
[INFO] [stdout] 6ffa1e05dc47f90ba51d8caf715c41df65059ce2d015b46f49a26d77eca24ec5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 3423aedba6edb3c8abfbca2cbc174798d0eb2155b4b90dce6bf3adf8dfa6099f
[INFO] running `Command { std: "docker" "start" "-a" "3423aedba6edb3c8abfbca2cbc174798d0eb2155b4b90dce6bf3adf8dfa6099f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking parity-wasm v0.42.1
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking assert_matches v1.4.0
[INFO] [stderr]     Checking form_urlencoded v1.0.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking bitvec v0.20.1
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking heck v0.3.2
[INFO] [stderr]     Checking blake2 v0.9.1
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling wabt-sys v0.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking semver-parser v0.10.2
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking pwasm-utils v0.17.0
[INFO] [stderr]     Checking rand v0.8.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking env_logger v0.8.2
[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-1.0.60/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=4ee2dcf58d83d9f5 -C extra-filename=-4ee2dcf58d83d9f5 --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] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3423aedba6edb3c8abfbca2cbc174798d0eb2155b4b90dce6bf3adf8dfa6099f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3423aedba6edb3c8abfbca2cbc174798d0eb2155b4b90dce6bf3adf8dfa6099f", kill_on_drop: false }`
[INFO] [stdout] 3423aedba6edb3c8abfbca2cbc174798d0eb2155b4b90dce6bf3adf8dfa6099f