[INFO] fetching crate nu-macros 0.12.0...
[INFO] checking nu-macros-0.12.0 against master#d902752866cbbdb331e3cf28ff6bba86ab0f6c62 for pr-77271
[INFO] extracting crate nu-macros 0.12.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate nu-macros 0.12.0 on toolchain d902752866cbbdb331e3cf28ff6bba86ab0f6c62
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nu-macros 0.12.0
[INFO] finished tweaking crates.io crate nu-macros 0.12.0
[INFO] tweaked toml for crates.io crate nu-macros 0.12.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] affd8beab0673ff29ed8c07ccb22d1e7fa2d4a263461d41ed67e89dd216e7702
[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" "affd8beab0673ff29ed8c07ccb22d1e7fa2d4a263461d41ed67e89dd216e7702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "affd8beab0673ff29ed8c07ccb22d1e7fa2d4a263461d41ed67e89dd216e7702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "affd8beab0673ff29ed8c07ccb22d1e7fa2d4a263461d41ed67e89dd216e7702", kill_on_drop: false }`
[INFO] [stdout] affd8beab0673ff29ed8c07ccb22d1e7fa2d4a263461d41ed67e89dd216e7702
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d902752866cbbdb331e3cf28ff6bba86ab0f6c62" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f440b387f0c07910c979ad4530367a9fc8fe2ffeff8cffdebc050652f3df6b79
[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" "f440b387f0c07910c979ad4530367a9fc8fe2ffeff8cffdebc050652f3df6b79", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking bytecount v0.3.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking natural v0.3.0
[INFO] [stderr]     Checking byte-unit v3.1.4
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking lexical-core v0.7.4
[INFO] [stderr]     Checking render-tree v0.1.1
[INFO] [stderr]     Checking nom_locate v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling nom-tracable-macros v0.4.1
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]    Compiling inventory-impl v0.1.9
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling ctor v0.1.16
[INFO] [stderr]    Compiling typetag-impl v0.1.6
[INFO] [stderr]     Checking nom-tracable v0.4.1
[INFO] [stderr]     Checking inventory v0.1.9
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking language-reporting v0.4.0
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking erased-serde v0.3.12
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking indexmap v1.6.0
[INFO] [stderr]     Checking chrono v0.4.18
[INFO] [stderr]     Checking typetag v0.1.6
[INFO] [stderr]     Checking bigdecimal v0.1.2
[INFO] [stderr]    Compiling nu-build v0.12.0
[INFO] [stderr]    Compiling nu-source v0.12.0
[INFO] [stderr]    Compiling nu-errors v0.12.0
[INFO] [stderr]    Compiling nu-protocol v0.12.0
[INFO] [stderr] error: failed to run custom build command for `nu-source v0.12.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/nu-source-cbb3d70de8a6b1dc/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" "f440b387f0c07910c979ad4530367a9fc8fe2ffeff8cffdebc050652f3df6b79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f440b387f0c07910c979ad4530367a9fc8fe2ffeff8cffdebc050652f3df6b79", kill_on_drop: false }`
[INFO] [stdout] f440b387f0c07910c979ad4530367a9fc8fe2ffeff8cffdebc050652f3df6b79