[INFO] fetching crate nu_plugin_average 0.14.0...
[INFO] checking nu_plugin_average-0.14.0 against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] extracting crate nu_plugin_average 0.14.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nu_plugin_average 0.14.0 on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nu_plugin_average 0.14.0
[INFO] finished tweaking crates.io crate nu_plugin_average 0.14.0
[INFO] tweaked toml for crates.io crate nu_plugin_average 0.14.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate nu_plugin_average 0.14.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "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] cea67a9e715270260b636678e527f1ea153d2691e1b7f9396eda3e192fb309cd
[INFO] running `Command { std: "docker" "start" "-a" "cea67a9e715270260b636678e527f1ea153d2691e1b7f9396eda3e192fb309cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cea67a9e715270260b636678e527f1ea153d2691e1b7f9396eda3e192fb309cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cea67a9e715270260b636678e527f1ea153d2691e1b7f9396eda3e192fb309cd", kill_on_drop: false }`
[INFO] [stdout] cea67a9e715270260b636678e527f1ea153d2691e1b7f9396eda3e192fb309cd
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7873877cebe876a6f3cba6ad29b16b8a6b28a0cd93b60c5dc01cb7f7ba31faa
[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" "a7873877cebe876a6f3cba6ad29b16b8a6b28a0cd93b60c5dc01cb7f7ba31faa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.20
[INFO] [stderr]    Compiling serde v1.0.110
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling inventory v0.1.6
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking byte-unit v3.0.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking render-tree v0.1.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking shellexpand v2.0.0
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.110
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling ctor v0.1.14
[INFO] [stderr]    Compiling inventory-impl v0.1.6
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling typetag-impl v0.1.4
[INFO] [stderr]    Compiling getset v0.1.0
[INFO] [stderr]     Checking language-reporting v0.4.0
[INFO] [stderr]     Checking num-bigint v0.2.6
[INFO] [stderr]     Checking serde_json v1.0.53
[INFO] [stderr]     Checking serde_yaml v0.8.12
[INFO] [stderr]     Checking rust-stemmers v1.2.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking erased-serde v0.3.11
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking serde_bytes v0.11.4
[INFO] [stderr]     Checking typetag v0.1.4
[INFO] [stderr]     Checking bigdecimal v0.1.2
[INFO] [stderr]     Checking natural v0.5.0
[INFO] [stderr]    Compiling nu-build v0.14.0
[INFO] [stderr]    Compiling nu-source v0.14.0
[INFO] [stderr]    Compiling nu-errors v0.14.0
[INFO] [stderr]    Compiling nu-protocol v0.14.0
[INFO] [stderr]    Compiling nu-value-ext v0.14.0
[INFO] [stderr]    Compiling nu-plugin v0.14.0
[INFO] [stderr]    Compiling nu_plugin_average v0.14.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `nu-source v0.14.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/nu-source-4b27e19ec4e551f6/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" "a7873877cebe876a6f3cba6ad29b16b8a6b28a0cd93b60c5dc01cb7f7ba31faa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7873877cebe876a6f3cba6ad29b16b8a6b28a0cd93b60c5dc01cb7f7ba31faa", kill_on_drop: false }`
[INFO] [stdout] a7873877cebe876a6f3cba6ad29b16b8a6b28a0cd93b60c5dc01cb7f7ba31faa