[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] documenting tetcoin/cargo-contract against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftetcoin%2Fcargo-contract" "/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/tetcoin/cargo-contract on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-5/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" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded substrate-subxt-proc-macro v0.13.0
[INFO] [stderr]   Downloaded parking_lot_core v0.8.1
[INFO] [stderr]   Downloaded binaryen v0.12.0
[INFO] [stderr]   Downloaded zip v0.5.9
[INFO] [stderr]   Downloaded parity-wasm v0.42.1
[INFO] [stderr]   Downloaded pwasm-utils v0.17.0
[INFO] [stderr]   Downloaded smallvec v1.5.1
[INFO] [stderr]   Downloaded substrate-subxt v0.13.0
[INFO] [stderr]   Downloaded wabt v0.10.0
[INFO] [stderr]   Downloaded binaryen-sys v0.12.0
[INFO] [stderr]   Downloaded wabt-sys v0.8.0
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", 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] 7e1ddf614f1d6df79516bdbf9ba8e5aa26650be690075fd096109aa0f1de4cec
[INFO] running `Command { std: "docker" "start" "-a" "7e1ddf614f1d6df79516bdbf9ba8e5aa26650be690075fd096109aa0f1de4cec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7e1ddf614f1d6df79516bdbf9ba8e5aa26650be690075fd096109aa0f1de4cec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e1ddf614f1d6df79516bdbf9ba8e5aa26650be690075fd096109aa0f1de4cec", kill_on_drop: false }`
[INFO] [stdout] 7e1ddf614f1d6df79516bdbf9ba8e5aa26650be690075fd096109aa0f1de4cec
[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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ac1831a0edd701ecac053c4b1a619c26aac2666ea79adfeeb033cc7f1666d0b
[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" "1ac1831a0edd701ecac053c4b1a619c26aac2666ea79adfeeb033cc7f1666d0b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]     Checking byte-slice-cast v1.0.0
[INFO] [stderr]     Checking parity-wasm v0.42.1
[INFO] [stderr]     Checking heck v0.3.2
[INFO] [stderr]     Checking bitvec v0.20.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking rand_core v0.6.1
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling binaryen-sys v0.12.0
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking blake2 v0.9.1
[INFO] [stderr]     Checking rand v0.8.1
[INFO] [stderr]     Checking pwasm-utils v0.17.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr] error: could not compile `serde_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.123/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=6c2a6a7d7744b3ff -C extra-filename=-6c2a6a7d7744b3ff --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-169dfcc015ef5b16.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-9c28df1060376c27.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-fe583441eb200708.rlib --extern proc_macro --cap-lints allow --cfg underscore_consts` (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" "1ac1831a0edd701ecac053c4b1a619c26aac2666ea79adfeeb033cc7f1666d0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ac1831a0edd701ecac053c4b1a619c26aac2666ea79adfeeb033cc7f1666d0b", kill_on_drop: false }`
[INFO] [stdout] 1ac1831a0edd701ecac053c4b1a619c26aac2666ea79adfeeb033cc7f1666d0b
