[INFO] fetching crate chema 0.0.9...
[INFO] testing chema-0.0.9 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate chema 0.0.9 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate chema 0.0.9 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate chema 0.0.9
[INFO] finished tweaking crates.io crate chema 0.0.9
[INFO] tweaked toml for crates.io crate chema 0.0.9 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate chema 0.0.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 973a8ff46098cc9b717d1301f403d40f2c6d152fc9ed58cdbde70c671ecce4b0
[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" "973a8ff46098cc9b717d1301f403d40f2c6d152fc9ed58cdbde70c671ecce4b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "973a8ff46098cc9b717d1301f403d40f2c6d152fc9ed58cdbde70c671ecce4b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "973a8ff46098cc9b717d1301f403d40f2c6d152fc9ed58cdbde70c671ecce4b0", kill_on_drop: false }`
[INFO] [stdout] 973a8ff46098cc9b717d1301f403d40f2c6d152fc9ed58cdbde70c671ecce4b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 883c8a742bf10371a6c11f938f0a40037cfbe12e31f8dc2a9549777a6fbeb661
[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" "883c8a742bf10371a6c11f938f0a40037cfbe12e31f8dc2a9549777a6fbeb661", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling combine v4.3.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling serde_yaml v0.8.14
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling chema v0.0.9 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `chema`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name chema --edition=2018 src/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=58e263287eaaf35a -C extra-filename=-58e263287eaaf35a --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern combine=/opt/rustwide/target/debug/deps/libcombine-05114666585e7f96.rlib --extern env_logger=/opt/rustwide/target/debug/deps/libenv_logger-affc3e04a7678abc.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-86422d76b8bd90ed.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-3c37482d804b01ce.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-98bcf3135d2409c3.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-3e8168eacf96a305.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-e11da9d599025c0a.rlib --extern serde_yaml=/opt/rustwide/target/debug/deps/libserde_yaml-6224f7c34d6b94d5.rlib --extern structopt=/opt/rustwide/target/debug/deps/libstructopt-3b2951a0bcf1f5f9.rlib --extern structopt_derive=/opt/rustwide/target/debug/deps/libstructopt_derive-18e18a2428e20690.so --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "883c8a742bf10371a6c11f938f0a40037cfbe12e31f8dc2a9549777a6fbeb661", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "883c8a742bf10371a6c11f938f0a40037cfbe12e31f8dc2a9549777a6fbeb661", kill_on_drop: false }`
[INFO] [stdout] 883c8a742bf10371a6c11f938f0a40037cfbe12e31f8dc2a9549777a6fbeb661