[INFO] cloning repository https://github.com/mohaque0/dataclass
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mohaque0/dataclass" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmohaque0%2Fdataclass", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmohaque0%2Fdataclass'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3f35c7203285e8f28d42391a01ae236f28d4f001
[INFO] checking mohaque0/dataclass against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmohaque0%2Fdataclass" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mohaque0/dataclass on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mohaque0/dataclass
[INFO] finished tweaking git repo https://github.com/mohaque0/dataclass
[INFO] tweaked toml for git repo https://github.com/mohaque0/dataclass written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mohaque0/dataclass already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "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] d64bb6de2ad0af7d95bcc8bb55626cd7ce4ff9e34f2a7c68c485754917f3b233
[INFO] running `Command { std: "docker" "start" "-a" "d64bb6de2ad0af7d95bcc8bb55626cd7ce4ff9e34f2a7c68c485754917f3b233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d64bb6de2ad0af7d95bcc8bb55626cd7ce4ff9e34f2a7c68c485754917f3b233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d64bb6de2ad0af7d95bcc8bb55626cd7ce4ff9e34f2a7c68c485754917f3b233", kill_on_drop: false }`
[INFO] [stdout] d64bb6de2ad0af7d95bcc8bb55626cd7ce4ff9e34f2a7c68c485754917f3b233
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fd5d539a0f2c00b94b302155f5441c505d121aa6de37430f8087bfe3f563cc7
[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" "7fd5d539a0f2c00b94b302155f5441c505d121aa6de37430f8087bfe3f563cc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking which v4.1.0
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling derive_more v0.99.14
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking ast v0.1.0 (/opt/rustwide/workdir/ast)
[INFO] [stderr]     Checking parser v0.1.0 (/opt/rustwide/workdir/parser)
[INFO] [stderr]     Checking app_common v0.1.0 (/opt/rustwide/workdir/app_common)
[INFO] [stderr]     Checking dcg-cpp v0.1.0 (/opt/rustwide/workdir/dcg-cpp)
[INFO] [stderr]     Checking dcg-rust v0.1.0 (/opt/rustwide/workdir/dcg-rust)
[INFO] [stderr]     Checking dcg v0.1.0 (/opt/rustwide/workdir/dcg)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.76s
[INFO] running `Command { std: "docker" "inspect" "7fd5d539a0f2c00b94b302155f5441c505d121aa6de37430f8087bfe3f563cc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fd5d539a0f2c00b94b302155f5441c505d121aa6de37430f8087bfe3f563cc7", kill_on_drop: false }`
[INFO] [stdout] 7fd5d539a0f2c00b94b302155f5441c505d121aa6de37430f8087bfe3f563cc7