[INFO] fetching crate nu-protocol 0.17.0...
[INFO] checking nu-protocol-0.17.0 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate nu-protocol 0.17.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate nu-protocol 0.17.0 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nu-protocol 0.17.0
[INFO] finished tweaking crates.io crate nu-protocol 0.17.0
[INFO] tweaked toml for crates.io crate nu-protocol 0.17.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91905ddaf10354f5a6a06d409e5cf9389236ce706d1a4c60726538f9e69cd9a3
[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" "91905ddaf10354f5a6a06d409e5cf9389236ce706d1a4c60726538f9e69cd9a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91905ddaf10354f5a6a06d409e5cf9389236ce706d1a4c60726538f9e69cd9a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91905ddaf10354f5a6a06d409e5cf9389236ce706d1a4c60726538f9e69cd9a3", kill_on_drop: false }`
[INFO] [stdout] 91905ddaf10354f5a6a06d409e5cf9389236ce706d1a4c60726538f9e69cd9a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "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] a6dd6b7d3632cc0cff45695472a4884fdc6c16b9a8578dfd94bf48ea92b70359
[INFO] running `Command { std: "docker" "start" "-a" "a6dd6b7d3632cc0cff45695472a4884fdc6c16b9a8578dfd94bf48ea92b70359", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling inventory v0.1.8
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling ctor v0.1.15
[INFO] [stderr]    Compiling inventory-impl v0.1.8
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling typetag-impl v0.1.5
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking codespan-reporting v0.9.5
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking rust-stemmers v1.2.0
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking typetag v0.1.5
[INFO] [stderr]     Checking bigdecimal v0.1.2
[INFO] [stderr]     Checking natural v0.5.0
[INFO] [stderr]    Compiling nu-build v0.17.0
[INFO] [stderr]    Compiling nu-source v0.17.0
[INFO] [stderr]    Compiling nu-errors v0.17.0
[INFO] [stderr]    Compiling nu-protocol v0.17.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `nu-source v0.17.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/nu-source-4d2144fdc89129ac/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Error("EOF while parsing a value", line: 1, column: 0)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a6dd6b7d3632cc0cff45695472a4884fdc6c16b9a8578dfd94bf48ea92b70359", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6dd6b7d3632cc0cff45695472a4884fdc6c16b9a8578dfd94bf48ea92b70359", kill_on_drop: false }`
[INFO] [stdout] a6dd6b7d3632cc0cff45695472a4884fdc6c16b9a8578dfd94bf48ea92b70359