[INFO] crate nu_plugin_post 0.17.0 is already in cache
[INFO] testing nu_plugin_post-0.17.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate nu_plugin_post 0.17.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate nu_plugin_post 0.17.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nu_plugin_post 0.17.0
[INFO] finished tweaking crates.io crate nu_plugin_post 0.17.0
[INFO] tweaked toml for crates.io crate nu_plugin_post 0.17.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate nu_plugin_post 0.17.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f6b718e913e19b457a298615bcb467c18a0d9731fd69f529cc4ffcf622484d7
[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" "8f6b718e913e19b457a298615bcb467c18a0d9731fd69f529cc4ffcf622484d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f6b718e913e19b457a298615bcb467c18a0d9731fd69f529cc4ffcf622484d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f6b718e913e19b457a298615bcb467c18a0d9731fd69f529cc4ffcf622484d7", kill_on_drop: false }`
[INFO] [stdout] 8f6b718e913e19b457a298615bcb467c18a0d9731fd69f529cc4ffcf622484d7
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8718a9a3d5e9e6fb100669a329faba44c72f89530b7506c30a8de6a1fcc728e
[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" "b8718a9a3d5e9e6fb100669a329faba44c72f89530b7506c30a8de6a1fcc728e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling query_interface v0.3.5
[INFO] [stderr]    Compiling byte-unit v3.1.4
[INFO] [stderr]    Compiling curl v0.4.30
[INFO] [stderr]    Compiling isahc v0.7.6
[INFO] [stderr]    Compiling curl-sys v0.4.32+curl-7.70.0
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling pretty v0.5.2
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling libnghttp2-sys v0.1.4+1.41.0
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling sluice v0.4.2
[INFO] [stderr]    Compiling shellexpand v2.0.0
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.19
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.3
[INFO] [stderr]    Compiling inventory-impl v0.1.7
[INFO] [stderr]    Compiling ctor v0.1.15
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling typetag-impl v0.1.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.22
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.3
[INFO] [stderr]    Compiling inventory v0.1.7
[INFO] [stderr]    Compiling getset v0.1.1
[INFO] [stderr]    Compiling pin-project v0.4.22
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling codespan-reporting v0.9.5
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling serde_yaml v0.8.13
[INFO] [stderr]    Compiling rust-stemmers v1.2.0
[INFO] [stderr]    Compiling erased-serde v0.3.12
[INFO] [stderr]    Compiling indexmap v1.5.0
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling chrono v0.4.13
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling typetag v0.1.5
[INFO] [stderr]    Compiling surf v1.0.3
[INFO] [stderr]    Compiling bigdecimal v0.1.2
[INFO] [stderr]    Compiling nu-build v0.17.0
[INFO] [stderr]    Compiling natural v0.5.0
[INFO] [stderr]    Compiling nu-source v0.17.0
[INFO] [stderr]    Compiling nu-errors v0.17.0
[INFO] [stderr]    Compiling nu-protocol v0.17.0
[INFO] [stderr]    Compiling nu-value-ext v0.17.0
[INFO] [stderr]    Compiling nu-plugin v0.17.0
[INFO] [stderr]    Compiling nu_plugin_post v0.17.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `nu-value-ext v0.17.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/nu-value-ext-48359e4ad484b8b1/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" "b8718a9a3d5e9e6fb100669a329faba44c72f89530b7506c30a8de6a1fcc728e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8718a9a3d5e9e6fb100669a329faba44c72f89530b7506c30a8de6a1fcc728e", kill_on_drop: false }`
[INFO] [stdout] b8718a9a3d5e9e6fb100669a329faba44c72f89530b7506c30a8de6a1fcc728e